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LifeWiki:Game of Life Status page

2022-01-11T02:11:06Z

Extrementhusiast: /* Gun pseudo-periods */

==Oscillator periods==

For green status, an oscillator must have a cell that
oscillates at the full period, rather than some smaller factor of that period.
One such cell is sufficient.

Yellow
means that the only known examples contain
no cells that oscillate at the full period.

<table border=1 cellspacing=0 width=500>

<tr>

<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/block.rle 1]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/blinker.rle 2]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/caterer.rle 3]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/mold.rle 4]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/pseudobarberpole.rle 5]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/unix.rle 6]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/burloaferimeter.rle 7]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/figureeight.rle 8]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/workerbee.rle 9]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/24p10.rle 10]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/38p111.rle 11]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/dinnertable.rle 12]</td>

</tr><tr>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/34p13.rle 13]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/tumbler.rle 14]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/pentadecathlon.rle 15]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/achimsp16.rle 16]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/honeythieves.rle 17]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/56p18.rle 18]</td>
<td bgcolor=#ffa0a0>19</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/48p20.rle 20]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/124p21.rle 21]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/36p22.rle 22]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/davidhilbert.rle 23]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/38p24.rle 24]</td>
</tr><tr>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/98p25.rle 25]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/prepulsarshuttle26.rle 26]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/56p27.rle 27]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/moldon34p14shuttle.rle 28]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/prepulsarshuttle29.rle 29]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/queenbeeshuttle.rle 30]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/48p31.rle 31]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/gourmet.rle 32]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/60p33.rle 33]</td>
<td bgcolor=#ffff80>[http://www.conwaylife.com/patterns/honeythieveswithtesttubebaby.rle 34]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/50p35.rle 35]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/22p36.rle 36]</td>
</tr><tr>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/124p37.rle 37]</td>
<td bgcolor=#ffa0a0>38</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/catereron34p13.rle 39]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/26p40.rle 40]</td>
<td bgcolor=#ffa0a0>41</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/unixon34p14shuttle.rle 42]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p43gliderloop.rle 43]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p44piheptominohassler.rle 44]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p45engine.rle 45]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/twinbeesshuttle.rle 46]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/prepulsarshuttle47.rle 47]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p48toadhassler.rle 48]</td>
</tr><tr>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/400p49.rle 49]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p50trafficjam.rle 50]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/112p51.rle 51]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/35p52.rle 52]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p53gliderloop.rle 53]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p54shuttle.rle 54]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/prepulsarhassler55.rle 55]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p56bheptominoshuttle.rle 56]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p57gliderloop.rle 57]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/prepulsarshuttle58.rle 58]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p59gliderloop.rle 59]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/twirlingttetsonsii.rle 60]</td>
</tr><tr>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p61gliderloop.rle 61]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p62blinkerhassler.rle 62]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p63gliderloop.rle 63]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/34p64.rle 64]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p65gliderloop.rle 65]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p66glidershuttle.rle 66]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p67gliderloop.rle 67]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p68gliderloop.rle 68]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p69gliderloop.rle 69]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/fumaroleon34p14shuttle.rle 70]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p71gliderloop.rle 71]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/47p72.rle 72]</td>
</tr><tr>

<td bgcolor=#80ff80 colspan=12>[http://www.conwaylife.com/patterns/osc-p43+.rle All higher periods are known]</td>
</tr>
</table>
'''Most recent discoveries:''' 
Nov 2019: [[David Hilbert|p23]] oscillator [Luka Okanishi with 'praosylen'] 
Apr 2013: [[P43_glider_loop|p43]] and [[P53_Snark_loop|p53]] oscillators [Mike Playle] 
Nov 2010: [[48P31|p31]] oscillator [Matthias Merzenich] 
Apr 2009: [[124P37|p37]] oscillator [Nicolay Beluchenko] 
Feb 2009: [[112P51|p51]] oscillator [Nicolay Beluchenko] 
Nov 2002: [[123P27.1|p27]] oscillator [Noam Elkies] 
Jul 2000: [[134P39.1|p39]] oscillator [Noam Elkies with David Buckingham] 
Aug 1999: [[P49_glider_shuttle|p49]] oscillator [Noam Elkies] 
Dec 1997: [[P57_Herschel_loop_1|p57]] oscillator [Dieter Leithner with David Buckingham] 
Jun 1997: [[258P3_on_Achim's_p11|p33]] oscillator [Noam Elkies, Achim Flammenkamp] 
27 Apr 1997: [[54P17.1|p17]] oscillator [Dean Hickerson] 
17 Apr 1997: [[168P22.1|p22]] oscillator [Noam Elkies]. ([Dean Hickerson] found [[Champagne_glass|a second, unrelated, p22 oscillator]] a day or two later.) 
11 Apr 1997: [[P59_Herschel_loop_1|p59]] oscillator [David Buckingham] 
Oct 1996: [[Herschel_loop|Herschel track]] method of constructing any period 61 or
higher [David Buckingham] 


== Oscillator volatilities ==
{| class="wikitable" style="margin-left:auto;margin-right:auto;"
|- align=center valign=center
! P
! Normal
! Volatile
! Strictly volatile
|- align=center valign=center
| 1
| style="background-color:#c6efce" | [[block|4]]
| style="background-color:#c6efce" | [[block|4]]
| style="background-color:#c6efce" | [[block|4]]
|- align=center valign=center
| 2
| style="background-color:#c6efce" | [[blinker|3]]
| style="background-color:#c6efce" | [[phoenix 1|12]]
| style="background-color:#c6efce" | [[phoenix 1|12]]
|- align=center valign=center
| 3
| style="background-color:#c6efce" | [[caterer|12]]
| style="background-color:#c6efce" | [[Statorless p3|140]]
| style="background-color:#c6efce" | [[Statorless p3|140]]
|- align=center valign=center
| 4
| style="background-color:#c6efce" | [[mold|12]]
| style="background-color:#c6efce" | [[mazing|12]]
| style="background-color:#c6efce" | [[Strictly volatile p4|416]]
|- align=center valign=center
| 5
| style="background-color:#c6efce" | [[pseudo-barberpole|15]]
| style="background-color:#c6efce" | [[Statorless p5|68]]
| style="background-color:#c6efce" | [[Statorless p5|68]]
|- align=center valign=center
| 6
| style="background-color:#c6efce" | [[unix|16]]
| style="background-color:#c6efce" | [[Statorless p6|36]]
| style="background-color:#c6efce" | [[Statorless_p6#Strictly_volatile_variant|52]]
|- align=center valign=center
| 7
| style="background-color:#c6efce" | [[burloaferimeter|28]]
| style="background-color:#ffc7ce" | No
| style="background-color:#ffc7ce" | No
|- align=center valign=center
| 8
| style="background-color:#c6efce" | [[figure eight|12]]
| style="background-color:#c6efce" | [[figure eight|12]]
| style="background-color:#c6efce" | [[figure eight|12]]
|- align=center valign=center
| 9
| style="background-color:#c6efce" | [[29P9|29]]
| style="background-color:#ffc7ce" | No
| style="background-color:#ffc7ce" | No
|}

== Glider reflectors ==

This table indicates whether a period-N glider stream can be reflected 90 degrees by an object whose period is N, or some factor of N.

This may seem to be a rather odd thing to keep track of, but 90-degree glider reflectors are very useful, and happen to be quite difficult to find in Life. Note that this table fits neatly between oscillators and guns -- if you have a gun, you can build a reflector, and if you have a reflector, you can build an oscillator.

Yellow means that the reflector requires the glider stream to have no gaps.

<table border=1 cellspacing=0 width=500>

<tr>
<td bgcolor=#c0c0c0>1</td>
<td bgcolor=#c0c0c0>2</td>
<td bgcolor=#c0c0c0>3</td>
<td bgcolor=#c0c0c0>4</td>
<td bgcolor=#c0c0c0>5</td>
<td bgcolor=#c0c0c0>6</td>
<td bgcolor=#c0c0c0>7</td>
<td bgcolor=#c0c0c0>8</td>
<td bgcolor=#c0c0c0>9</td>
<td bgcolor=#c0c0c0>10</td>
<td bgcolor=#c0c0c0>11</td>
<td bgcolor=#c0c0c0>12</td>
</tr><tr>
<td bgcolor=#c0c0c0>13</td>
<td bgcolor=#ffa0a0>14</td>
<td bgcolor=#ffa0a0>15</td>
<td bgcolor=#ffa0a0>16</td>
<td bgcolor=#ffa0a0>17</td>
<td bgcolor=#80ff80>18</td>
<td bgcolor=#ffa0a0>19</td>
<td bgcolor=#80ff80>20</td>
<td bgcolor=#80ff80>21</td>
<td bgcolor=#80ff80>22</td>
<td bgcolor=#ffa0a0>23</td>
<td bgcolor=#80ff80>24</td>
</tr><tr>
<td bgcolor=#80ff80>25</td>
<td bgcolor=#ffff80>26</td>
<td bgcolor=#80ff80>27</td>
<td bgcolor=#80ff80>28</td>
<td bgcolor=#80ff80>29</td>
<td bgcolor=#80ff80>30</td>
<td bgcolor=#80ff80>31</td>
<td bgcolor=#80ff80>32</td>
<td bgcolor=#80ff80>33</td>
<td bgcolor=#ffa0a0>34</td>
<td bgcolor=#80ff80>35</td>
<td bgcolor=#80ff80>36</td>
</tr><tr>
<td bgcolor=#80ff80>37</td>
<td bgcolor=#ffa0a0>38</td>
<td bgcolor=#80ff80>39</td>
<td bgcolor=#80ff80>40</td>
<td bgcolor=#ffa0a0>41</td>
<td bgcolor=#80ff80>42</td>
<td bgcolor=#80ff80>43</td>
<td bgcolor=#80ff80>44</td>
<td bgcolor=#80ff80>45</td>
<td bgcolor=#80ff80>46</td>
<td bgcolor=#80ff80>47</td>
<td bgcolor=#80ff80>48</td>
</tr><tr>
<td bgcolor=#80ff80>49</td>
<td bgcolor=#80ff80>50</td>
<td bgcolor=#80ff80>51</td>
<td bgcolor=#80ff80>52</td>
<td bgcolor=#80ff80>53</td>
<td bgcolor=#80ff80>54</td>
<td bgcolor=#80ff80>55</td>
<td bgcolor=#80ff80>56</td>
<td bgcolor=#80ff80>57</td>
<td bgcolor=#80ff80>58</td>
<td bgcolor=#80ff80>59</td>
<td bgcolor=#80ff80>60</td>
</tr><tr>
<td bgcolor=#80ff80>61</td>
<td bgcolor=#80ff80>62</td>
<td bgcolor=#80ff80>63</td>
<td bgcolor=#80ff80>64</td>
<td bgcolor=#80ff80>65</td>
<td bgcolor=#80ff80>66</td>
<td bgcolor=#80ff80>67</td>
<td bgcolor=#80ff80>68</td>
<td bgcolor=#80ff80>69</td>
<td bgcolor=#80ff80>70</td>
<td bgcolor=#80ff80>71</td>
<td bgcolor=#80ff80>72</td>
</tr><tr>
<td bgcolor=#80ff80 colspan=12>All higher periods are known</td>
</tr>
</table>
'''Most recent discoveries:''' 
24 Aug 2021: p18 reflector [Matthias Merzenich, David Raucci] 
1 Aug 2021: p21 reflector [follows from p21 gun] 
Oct 2018: p27 reflector [Matthias Merzenich, 'carybe', Noam Elkies] 
4 Apr 2018: p39 reflector [Arie Paap, Tanner Jacobi] 
28 Aug 2013: p29 independent reflector [Matthias Merzenich, Noam Elkies] 
25 Aug 2013: p29 dependent reflector [Matthias Merzenich, Noam Elkies] 
May 2013: p20 reflector [follows from p20 gun] 
Apr 2013: Independent reflector for all periods 43 and over [Mike Playle].
Specifically: p43 and p53 (had nothing); p47 and p51 (had oscillators);
p57 and p61 (had dependent reflectors). 
Sep 2012: p58 independent reflector [Matthias Merzenich] 
Sep 2012: p52 reflector [Matthias Merzenich] 
Feb 2012: p26 dependent reflector [Matthias Merzenich with Mike Playle] 
Nov 2010: p31 reflector [Matthias Merzenich] 
Mar 2010: p37 reflector [Nicolay Beluchenko] 
Dec 2009: p59 reflector [follows from p59 gun] 


== Glider gun true-periods ==
Note: Many of the links in this table lead to objects in [[Catagolue]]'s glider gun list rather than to another wiki page.

<table border=1 cellspacing=0 width=500>

<tr>
<td bgcolor=#c0c0c0>1</td>
<td bgcolor=#c0c0c0>2</td>
<td bgcolor=#c0c0c0>3</td>
<td bgcolor=#c0c0c0>4</td>
<td bgcolor=#c0c0c0>5</td>
<td bgcolor=#c0c0c0>6</td>
<td bgcolor=#c0c0c0>7</td>
<td bgcolor=#c0c0c0>8</td>
<td bgcolor=#c0c0c0>9</td>
<td bgcolor=#c0c0c0>10</td>
<td bgcolor=#c0c0c0>11</td>
<td bgcolor=#c0c0c0>12</td>
</tr><tr>
<td bgcolor=#c0c0c0>13</td>
<td bgcolor=#ffa0a0>14</td>
<td bgcolor=#ffa0a0>15</td>
<td bgcolor=#ffa0a0>16</td>
<td bgcolor=#ffa0a0>17</td>
<td bgcolor=#ffa0a0>18</td>
<td bgcolor=#ffa0a0>19</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_20/b3s23 20]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_21/b3s23 21]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_22/b3s23 22]</td>
<td bgcolor=#ffa0a0>23</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_24/b3s23 24]</td>
</tr><tr>
<td bgcolor=#ffa0a0>25</td>
<td bgcolor=#ffa0a0>26</td>
<td bgcolor=#ffa0a0>27</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_28/b3s23 28]</td>
<td bgcolor=#ffa0a0>29</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_30/b3s23 30]</td>
<td bgcolor=#ffa0a0>31</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_32/b3s23 32]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_33/b3s23 33]</td>
<td bgcolor=#ffa0a0>34</td>
<td bgcolor=#ffa0a0>35</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_36/b3s23 36]</td>
</tr><tr>
<td bgcolor=#ffa0a0>37</td>
<td bgcolor=#ffa0a0>38</td>
<td bgcolor=#ffa0a0>39</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_40/b3s23 40]</td>
<td bgcolor=#ffa0a0>41</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_42/b3s23 42]</td>
<td bgcolor=#ffa0a0>43</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_44/b3s23 44]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_45/b3s23 45]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_46/b3s23 46]</td>
<td bgcolor=#ffa0a0>47</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_48/b3s23 48]</td>
</tr><tr>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_49/b3s23 49]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_50/b3s23 50]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_51/b3s23 51]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_52/b3s23 52]</td>
<td bgcolor=#ffa0a0>53</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_54/b3s23 54]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_55/b3s23 55]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_56/b3s23 56]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_57/b3s23 57]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_58/b3s23 58]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_59/b3s23 59]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_60/b3s23 60]</td>
</tr><tr>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_61/b3s23 61]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_62/b3s23 62]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_63/b3s23 63]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_64/b3s23 64]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_65/b3s23 65]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_66/b3s23 66]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_67/b3s23 67]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_68/b3s23 68]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_69/b3s23 69]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_70/b3s23 70]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_71/b3s23 71]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_72/b3s23 72]</td>
</tr><tr>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_73/b3s23 73]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_74/b3s23 74]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_75/b3s23 75]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_76/b3s23 76]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_77/b3s23 77]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_78/b3s23 78]</td>
<td bgcolor=#80ff80>[https://catagolue.hatsya.com/object/guntrue_79/b3s23 79]</td>
<td bgcolor=#80ff80 colspan=5></td>
</tr><tr>
<td bgcolor=#80ff80 colspan=12>[https://www.conwaylife.com/patterns/gun-p80+n.rle All higher periods are known]</td>
</tr>
</table>

'''Most recent discoveries:''' 
28 Nov 2021: p49 and p51 guns [Tanner Jacobi (p49), Luka Okanishi (p51), wwei23, hotcrystal0 (base mechanism)] 
9 Sep 2021: p32 gun [Matthias Merzenich, David Raucci with 'praosylen', wwei23, Noam Elkies] 
1 Aug 2021: p21 gun and related p42 gun [Tanner Jacobi, David Raucci] 
15 Dec 2020: p28 gun [Matthias Merzenich, Paul Callahan] 
2 Oct 2018: p33 gun [Arie Paap, Matthias Merzenich with Jason Summers] 
26 Sep 2018: p52 gun [Dave Greene, Matthias Merzenich, Chris Cain, Adam P. Goucher with Tanner Jacobi, Luka Okanishi, Louis-François Handfield] 
15 Apr 2016: p57 gun [Matthias Merzenich] 
14 Apr 2016: p58 gun ['thunk', Matthias Merzenich with Chris Cain] 
13 Apr 2016: p61 gun [Luka Okanishi] 
13 May 2013: p20 gun [Matthias Merzenich with Noam Elkies] 
18 Mar 2013: p40 gun [Adam P. Goucher, Matthias Merzenich with Jason Summers] 
Apr 2010: p45 gun [Matthias Merzenich] 
Dec 2009: p59 gun [Adam P. Goucher with Jason Summers] 
Jul 2004: p36 gun [Jason Summers] 
Aug 2000: p22 gun [David Eppstein, Jason Summers] 
Oct 1998: p55 gun [Stephen Silver, Noam Elkies with David Buckingham] 
29 Jan 1998: p56 gun [Dietrich Leithner, Noam Elkies with David Buckingham] 
26 Jan 1998: p54 gun [Dietrich Leithner with David Buckingham, Noam Elkies] 
Jun 1997: p24 gun and related p48 gun [Noam Elkies] 
13 Oct 1996: p50 gun [Dean Hickerson with Noam Elkies, David Buckingham] 
12 Oct 1996: Herschel track method of constructing any period 62 or
higher [David Buckingham] 


==Gun pseudo-periods==

<table border=1 cellspacing=0>

<tr><th>Glider</th><th>LWSS</th><th>MWSS</th><th>HWSS</th></tr>

<tr>
<td bgcolor=#c0c0c0 colspan=4>All lower periods are impossible.</td>
</tr><tr>
<td bgcolor=#c0c0c0>13</td>
<td bgcolor=#c0c0c0>13</td>
<td bgcolor=#c0c0c0>13</td>
<td bgcolor=#c0c0c0>13</td>
</tr><tr>
<td bgcolor=#80ff80>14</td>
<td bgcolor=#ffa0a0>14</td>
<td bgcolor=#c0c0c0>14</td>
<td bgcolor=#c0c0c0>14</td>
</tr><tr>
<td bgcolor=#80ff80>15</td>
<td bgcolor=#ffa0a0>15</td>
<td bgcolor=#c0c0c0>15</td>
<td bgcolor=#c0c0c0>15</td>
</tr><tr>
<td bgcolor=#80ff80>16</td>
<td bgcolor=#80ff80>16</td>
<td bgcolor=#80ff80>16</td>
<td bgcolor=#c0c0c0>16</td>
</tr><tr>
<td bgcolor=#80ff80>17</td>
<td bgcolor=#80ff80>17</td>
<td bgcolor=#80ff80>17</td>
<td bgcolor=#c0c0c0>17</td>
</tr><tr>
<td bgcolor=#80ff80>18</td>
<td bgcolor=#80ff80>18</td>
<td bgcolor=#80ff80>18</td>
<td bgcolor=#80ff80>18</td>
</tr><tr>
<td bgcolor=#80ff80>19</td>
<td bgcolor=#80ff80>19</td>
<td bgcolor=#80ff80>19</td>
<td bgcolor=#80ff80>19</td>
</tr><tr>
<td bgcolor=#80ff80>20</td>
<td bgcolor=#80ff80>20</td>
<td bgcolor=#80ff80>20</td>
<td bgcolor=#80ff80>20</td>
</tr><tr>
<td bgcolor=#80ff80>21</td>
<td bgcolor=#80ff80>21</td>
<td bgcolor=#80ff80>21</td>
<td bgcolor=#80ff80>21</td>
</tr><tr>
<td bgcolor=#80ff80>22</td>
<td bgcolor=#80ff80>22</td>
<td bgcolor=#80ff80>22</td>
<td bgcolor=#80ff80>22</td>
</tr><tr>
<td bgcolor=#80ff80>23</td>
<td bgcolor=#80ff80>23</td>
<td bgcolor=#80ff80>23</td>
<td bgcolor=#80ff80>23</td>
</tr><tr>
<td colspan=4 bgcolor=#80ff80>All higher periods are known.</td>
</tr>
</table>

== Velocities of spaceships ==
Blue indicates this is the smallest of that simplified displacement. Green indicates this displacement is known, but is not the smallest of said displacement, yellow indicates this displacement is only known for an engineered or universally constructing spaceships, and red indicates unknown velocities.
{| class="wikitable" style="margin-left:auto;margin-right:auto;"
|- align=center valign=center
!
! c/
! 2c/
! 3c/
! 4c/
! 5c/
! 6c/
! 7c/
! 8c/
! 9c/
! 17c/
! 28c/
! 31c/
|- align=center valign=center
! 1
| style="background-color:#eeeeee" colspan="12" | Impossible
|- align=center valign=center
! 2
| style="background-color:#c6efce;" | [[64P2H1V0|(1,0)]]
| style="background-color:#eeeeee" colspan="11" rowspan="2" |
|- align=center valign=center
! 3
| style="background-color:#dfdfff;" | [[25P3H1V0.2|(1,0)]]
|- align=center valign=center
! rowspan="2" | 4
| style="background-color:#dfdfff;" | [[37P4H1V0|(1,0)]]
| style="background-color:#dfdfff;" | ''[[lightweight spaceship|(2,0)]]''
| style="background-color:#eeeeee" colspan="10" |
|- align=center valign=center
| style="background-color:#dfdfff;" | [[glider|(1,1)]]
| style="background-color:#eeeeee" colspan="11" |
|- align=center valign=center
! rowspan="2" | 5
| style="background-color:#dfdfff;" | [[spider|(1,0)]]
| style="background-color:#dfdfff;" | [[30P5H2V0|(2,0)]]
| style="background-color:#eeeeee" colspan="10" |
|- align=center valign=center
| style="background-color:#dfdfff;" | [[58P5H1V1|(1,1)]]
| style="background-color:#eeeeee" colspan="11" |
|- align=center valign=center
! rowspan="3" | 6
| style="background-color:#dfdfff;" | [[56P6H1V0|(1,0)]]
| style="background-color:#c6efce;" | ''(2,0)''
| style="background-color:#c6efce;" | ''(3,0)''
| style="background-color:#eeeeee" colspan="9" |
|- align=center valign=center
| style="background-color:#dfdfff;" | [[77P6H1V1|(1,1)]]
| style="background-color:#eeeeee" colspan="11" rowspan="2" |
|- align=center valign=center
| style="background-color:#dfdfff;" | [[Sir Robin|(2,1)]]
|- align=center valign=center
! rowspan="3" | 7
| style="background-color:#dfdfff;" | [[loafer|(1,0)]]
| style="background-color:#dfdfff;" | [[weekender|(2,0)]]
| style="background-color:#dfdfff;" | [[spaghetti monster|(3,0)]]
| style="background-color:#eeeeee" colspan="9" |
|- align=center valign=center
| style="background-color:#dfdfff;" | [[Lobster (spaceship)|(1,1)]]
| style="background-color:#eeeeee" colspan="11" rowspan="2" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (2,1)
|- align=center valign=center
! rowspan="4" | 8
| style="background-color:#ffffdd;" | (1,0)
| style="background-color:#c6efce;" | ''(2,0)''
| style="background-color:#ffc7ce;" | (3,0)
| style="background-color:#c6efce;" | ''(4,0)''
| style="background-color:#eeeeee" colspan="8" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (1,1)
| style="background-color:#c6efce;" | ''(2,2)''
| style="background-color:#eeeeee" colspan="10" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (2,1)
| style="background-color:#eeeeee" colspan="11" rowspan="2" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (3,1)
|- align=center valign=center
! rowspan="4" | 9
| style="background-color:#ffffdd;" | (1,0)
| style="background-color:#ffc7ce;" | (2,0)
| style="background-color:#c6efce;" | ''(3,0)''
| style="background-color:#ffc7ce;" | (4,0)
| style="background-color:#eeeeee" colspan="8" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (1,1)
| style="background-color:#ffc7ce;" | (2,2)
| style="background-color:#eeeeee" colspan="10" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (2,1)
| style="background-color:#eeeeee" colspan="11" rowspan="2" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (3,1)
|- align=center valign=center
! rowspan="6" | 10
| style="background-color:#dfdfff;" | [[copperhead|(1,0)]]
| style="background-color:#c6efce;" | ''(2,0)''
| style="background-color:#ffc7ce;" | (3,0)
| style="background-color:#c6efce;" | ''(4,0)''
| style="background-color:#c6efce;" | ''(5,0)''
| style="background-color:#eeeeee" colspan="7" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (1,1)
| style="background-color:#ffffdd;" | ''(2,2)''
| style="background-color:#eeeeee" colspan="10" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (2,1)
| style="background-color:#eeeeee" colspan="11" rowspan="4" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (3,1)
|- align=center valign=center
| style="background-color:#ffc7ce;" | (4,1)
|- align=center valign=center
| style="background-color:#ffc7ce;" | (3,2)
|- align=center valign=center
! rowspan="6" | 11
| style="background-color:#ffffdd;" | (1,0)
| style="background-color:#ffc7ce;" | (2,0)
| style="background-color:#ffc7ce;" | (3,0)
| style="background-color:#ffc7ce;" | (4,0)
| style="background-color:#ffc7ce;" | (5,0)
| style="background-color:#eeeeee" colspan="7" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (1,1)
| style="background-color:#ffc7ce;" | (2,2)
| style="background-color:#eeeeee" colspan="10" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (2,1)
| style="background-color:#eeeeee" colspan="11" rowspan="4" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (3,1)
|- align=center valign=center
| style="background-color:#ffc7ce;" | (4,1)
|- align=center valign=center
| style="background-color:#ffc7ce;" | (3,2)
|- align=center valign=center
! rowspan="7" | 12
| style="background-color:#ffffdd;" | (1,0)
| style="background-color:#ffffdd;" | ''(2,0)''
| style="background-color:#c6efce;" | ''(3,0)''
| style="background-color:#c6efce;" | ''(4,0)''
| style="background-color:#ffc7ce;" | (5,0)
| style="background-color:#c6efce;" | ''(6,0)''
| style="background-color:#eeeeee" colspan="6" |
|- align=center valign=center
| style="background-color:#ffffdd;" | (1,1)
| style="background-color:#ffffdd;" | ''(2,2)''
| style="background-color:#c6efce;" | ''(3,3)''
| style="background-color:#eeeeee" colspan="9" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (2,1)
| style="background-color:#ffc7ce;" | ''(4,2)''
| style="background-color:#eeeeee" colspan="10" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (3,1)
| style="background-color:#eeeeee" colspan="11" rowspan="4" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (4,1)
|- align=center valign=center
| style="background-color:#ffc7ce;" | (5,1)
|- align=center valign=center
| style="background-color:#ffc7ce;" | (3,2)
|- align=center valign=center
! rowspan="7" | 13
| style="background-color:#ffffdd;" | (1,0)
| style="background-color:#ffc7ce;" | (2,0)
| style="background-color:#ffc7ce;" | (3,0)
| style="background-color:#ffc7ce;" | (4,0)
| style="background-color:#ffc7ce;" | (5,0)
| style="background-color:#ffc7ce;" | (6,0)
| style="background-color:#eeeeee" colspan="6" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (1,1)
| style="background-color:#ffc7ce;" | (2,2)
| style="background-color:#ffc7ce;" | (3,3)
| style="background-color:#eeeeee" colspan="9" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (2,1)
| style="background-color:#ffc7ce;" | (4,2)
| style="background-color:#eeeeee" colspan="10" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (3,1)
| style="background-color:#eeeeee" colspan="11" rowspan="4" |
|- align=center valign=center
| style="background-color:#ffc7ce;" | (4,1)
|- align=center valign=center
| style="background-color:#ffc7ce;" | (5,1)
|- align=center valign=center
| style="background-color:#ffc7ce;" | (3,2)
|- align=center valign=center
|}

=== Possible velocities ===
{| class="wikitable" style="margin-left:auto;margin-right:auto;"
|- align=center valign=center
! colspan="25" | orthogonal
|- align=center valign=center
! c/
| style="background-color:#eeddcc" | 1
| style="background-color:#88ee99" | [[64P2H1V0|2]]
| style="background-color:#88ee99" | [[25P3H1V0.2|3]]
| style="background-color:#88ee99" | [[37P4H1V0|4]]
| style="background-color:#88ee99" | [[spider|5]]
| style="background-color:#88ee99" | [[56P6H1V0|6]]
| style="background-color:#88ee99" | [[loafer|7]]
| style="background-color:#ddddbb" | 8
| style="background-color:#ddddbb" | 9
| style="background-color:#88ee99" | [[copperhead|10]]
| style="background-color:#ddddbb" | 11
| style="background-color:#ddddbb" | 12
| style="background-color:#ddddbb" | 13
| style="background-color:#ddddbb" | 14
| style="background-color:#ddddbb" | 15
| style="background-color:#ddddbb" | 16
| style="background-color:#ddddbb" | 17
| style="background-color:#ddddbb" | 18
| style="background-color:#ddddbb" | 19
| style="background-color:#ddddbb" | 20
| style="background-color:#ddddbb" | 21
| style="background-color:#ddddbb" | 22
| style="background-color:#ddddbb" | 23
| style="background-color:#ddddbb" | 24
|- align=center valign=center
! 2c/
| style="background-color:#ffc7ce" | 1
| style="background-color:#ffeedd" | 2
| style="background-color:#ffeedd" | 3
| style="background-color:#c6efce" | [[lightweight spaceship|4]]
| style="background-color:#c6efce" | [[30P5H2V0|5]]
| style="background-color:#c6efce" | 6
| style="background-color:#c6efce" | [[weekender|7]]
| style="background-color:#c6efce" | 8
| style="background-color:#ffffdd" | 9
| style="background-color:#c6efce" | 10
| style="background-color:#ffffdd" | 11
| style="background-color:#ffffdd" | 12
| style="background-color:#ffffdd" | 13
| style="background-color:#ffffdd" | 14
| style="background-color:#ffffdd" | 15
| style="background-color:#ffffdd" | 16
| style="background-color:#ffffdd" | 17
| style="background-color:#ffffdd" | 18
| style="background-color:#ffffdd" | 19
| style="background-color:#ffffdd" | 20
| style="background-color:#ffffdd" | 21
| style="background-color:#ffffdd" | 22
| style="background-color:#ffffdd" | 23
| style="background-color:#ffffdd" | 24
|- align=center valign=center
! 3c/
| style="background-color:#ffc7ce" | 1
| style="background-color:#ffc7ce" | 2
| style="background-color:#ffeedd" | 3
| style="background-color:#ffeedd" | 4
| style="background-color:#ffeedd" | 5
| style="background-color:#c6efce" | 6
| style="background-color:#c6efce" | [[spaghetti monster|7]]
| style="background-color:#ffffdd" | 8
| style="background-color:#c6efce" | 9
| style="background-color:#ffffdd" | 10
| style="background-color:#ffffdd" | 11
| style="background-color:#c6efce" | 12
| style="background-color:#ffffdd" | 13
| style="background-color:#ffffdd" | 14
| style="background-color:#ffffdd" | 15
| style="background-color:#ffffdd" | 16
| style="background-color:#ffffdd" | 17
| style="background-color:#ffffdd" | 18
| style="background-color:#ffffdd" | 19
| style="background-color:#ffffdd" | 20
| style="background-color:#ffffdd" | 21
| style="background-color:#ffffdd" | 22
| style="background-color:#ffffdd" | 23
| style="background-color:#ffffdd" | 24
|- align=center valign=center
|}

== Velocities of general moving objects ==
Velocity is the combination of speed and [[slope]] (direction).

In this section, velocity is in the form (X,Y)c/P, where X>=Y, and
no factor is common to
all of X, Y, and P. (c is the "speed of light": 1 cell/generation.)
P is therefore the minimum possible period
for that velocity; X and Y are the (average) number of cells moved
horizontally and vertically in P generations. The slope (direction)
is Y/X, and the speed is Xc/P.

For example, (2,0)c/5 indicates movement of 2 cells horizontally and
no cells vertically every 5 generations.

"Versatile puffer," means that for some period, we can build a
clean glider rake with the gliders traveling in any of
the possible directions.

Whether an object is a "wickstretcher" is to some extent a judgment call.
For this table, the wick is required to be reasonably closely connected in all
phases, and must in some sense be extended at a single location, rather than
being built up slowly from pieces.

The "Gun?" column indicates whether a gun has been built which
fires spaceships of that velocity. Yellow
means that there is a known [[glider synthesis]] for a spaceship, but no explicit example gun has been constructed yet.

<table border=1 cellspacing=0 width=500>
<tr><th>Velocity</th><th>Spaceship?</th>
<th>Puffer?</th><th>Versatile puffer?</th><th>Wick- stretcher?</th><th>Gun?</th></tr>
<tr><td>(1,0)c/2</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(1,0)c/3</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(1,0)c/4</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(1,1)c/4</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(1,0)c/5</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(2,0)c/5</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(1,1)c/5</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(1,0)c/6</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(2,1)c/6</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(1,1)c/6</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(1,0)c/7</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(2,0)c/7</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(3,0)c/7</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(2,1)c/7</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td></tr>
<tr><td>(1,1)c/7</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(1,0)c/8</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(3,0)c/8</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td></tr>
<tr><td>(3,1)c/8</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td></tr>
<tr><td>(2,1)c/8</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td></tr>
<tr><td>(1,1)c/8</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(1,0)c/10</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(1,1)c/12</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffff80>Yes</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(17,0)c/45</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(23,5)c/79</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(31,0)c/240</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td></tr>

<tr><td>Other</td><td colspan=5>
Universal constructor-based spaceships (and other objects) that move
very slowly have been made. The [[Gemini|first such object]] has a velocity of
(5120,1024)c/33699586.
</td></tr>
</table>

'''Most recent discoveries (new velocities):''' 
18 Sep 2020: [[Speed Demonoid|c/8 diagonal]] spaceship [Pavel Grankovskiy, Dave Greene] 
Mar 2018: [[(2,1)c/6]] spaceship [Adam P. Goucher, Tomas Rokicki, Josh Ball] 
Jun 2016: [[3c/7 orthogonal]] spaceship [Tim Coe] 
Apr 2016: [[c/8 orthogonal]] spaceship [Michael Simkin with David Bell, Alexey Nigin] 
Mar 2016: [[c/10 orthogonal]] spaceship ['zdr'] 
Dec 2015: 13c/96228 (~ c/7402) diagonal 0hd Demonoid [Chris Cain, Dave Greene] 
Nov 2015: c/12700 diagonal 10hd Demonoid [Dave Greene, Chris Cain] 
Dec 2014: (23,5)c/79 spaceship [Brett Berger, Ivan Fomichev with Nicolay Beluchenko] 
Sep 2014: 31c/240 orthogonal spaceship [Dave Greene, Ivan Fomichev, Adam P. Goucher, Chris Cain with Kiho Park] 
Jul 2014: Half-baked knightships [Adam P. Goucher, Chris Cain, Ivan Fomichev, Dave Greene] 
Feb 2013: c/7 orthogonal spaceship [Josh Ball] 
Aug 2011: c/7 diagonal spaceship [Matthias Merzenich] 
May 2010: Universal constructor-based [[Gemini|"Gemini" spaceship]] [Andrew Wade] 
Sep 2005: c/6 diagonal spaceship [Nicolay Beluchenko] 
Dec 2004: 17c/45 orthogonal spaceship [Gabriel Nivasch, Jason Summers with David Bell] 
Nov 2000: c/5 diagonal spaceship [Jason Summers; search software by David Bell] 
Apr 2000: c/6 orthogonal spaceship [Paul Tooke; search software by David Eppstein] 
Jan 2000: 2c/7 orthogonal spaceship [David Eppstein] 
Jan 1996: c/5 orthogonal spaceship [Tim Coe]



'''Most recent discoveries (other):''' 
17 Nov 2021: versatile c/6 orthogonal puffer ['May13' with 'iNoMed', Matthias Merzenich] 
May 2021: [[(2,1)c/6]] puffer [Adam P. Goucher] and versatile puffer ['May13', Adam P. Goucher] 
3 Jan 2021: versatile 3c/7 orthogonal puffer [Matthias Merzenich, 'bubblegum', 'iNoMed' with Dylan Chen, Tim Coe] 
Dec 2020: c/6 orthogonal spaceship gun [wwei23] 
May 2020: c/5 diagonal spaceship gun [Entity Valkyrie] 
Apr 2020: c/5 diagonal spaceship synthesis [Goldtiger997, Tanner Jacobi, BlinkerSpawn, Adam P. Goucher with Matthias Merzenich] 
Mar 2020: c/6 orthogonal spaceship synthesis [Goldtiger997, Tanner Jacobi, AforAmpere, 'praosylen', Martin Grant with Hartmut Holzwart] 
Jan 2020: c/5 orthogonal spaceship gun [Entity Valkyrie] 
Oct 2019: c/4 orthogonal spaceship gun [Goldtiger997] 
Mar 2019: c/5 orthogonal spaceship synthesis [Martin Grant with David Bell] 
Feb 2019: c/4 orthogonal spaceship synthesis [Tanner Jacobi, Martin Grant with Tim Coe] 
Jul 2017: c/6 orthogonal puffer [Nico Brown with Matthias Merzenich] 
Mar 2017: 3c/7 orthogonal puffer [Luka Okanishi with Tim Coe] 
Apr 2016: c/7 orthogonal (versatile) puffer [Michael Simkin with David Bell, Alexey Nigin] 
Apr 2016: c/8 orthogonal (versatile) puffer [Michael Simkin with David Bell, Alexey Nigin] 
Mar 2016: c/10 orthogonal (versatile) puffer [Nico Brown with Simon Ekström] 
Mar 2016: c/10 orthogonal spaceship gun [Alexey Nigin with 'zdr'] 
Mar 2016: c/10 orthogonal spaceship synthesis [Tanner Jacobi with Mark Niemiec, Chris Cain] 
Sep 2015: 2c/7 orthogonal spaceship gun [Chris Cain] (based on the 2c/7 spaceship synthesis from Jan 2015) 
Jan 2015: 2c/7 orthogonal spaceship synthesis [Martin Grant, Tanner Jacobi] 
Jan 2015: Gun for a half-baked knightship [Chris Cain] (a gun was likely constructed by [Michael Simkin] in Dec 2014, but it was too big to run in Golly) 
Dec 2014: (versatile) (23,5)c/79 puffer [Brett Berger, Ivan Fomichev with Nicolay Beluchenko] 
Dec 2014: c/3 orthogonal spaceship gun [Martin Grant, Michael Simkin with David Bell] 
Sep 2014: (versatile) 31c/240 orthogonal puffer [Dave Greene, Ivan Fomichev, Adam P. Goucher, Chris Cain, with Kiho Park] 
May 2014: versatile 2c/7 orthogonal puffer [Ivan Fomichev] 
Dec 2013: 2c/7 orthogonal puffer [Ivan Fomichev] 
Mar 2013: c/5 orthogonal wickstretcher [Matthias Merzenich] 
Feb 2013: c/7 orthogonal spaceship gun [Shannon Omick, Matthias Merzenich, Adam P. Goucher with Josh Ball] 
Jan 2011: c/5 diagonal wickstretcher [Matthias Merzenich] 
Sep 2010: (versatile) c/5 diagonal puffer [Matthias Merzenich] 
Jul 2010: Gun for Gemini spaceship [Dave Greene] 
Oct 2005: versatile c/4 diagonal puffer [David Bell with Jason Summers, Nicolay Beluchenko] 
Dec 2004: (versatile) 17c/45 orthogonal puffer [Gabriel Nivasch, Jason Summers with David Bell] 
Mar 2004: c/4 diag puffer [Hartmut Holzwart] 
Mar 2003: 2c/5 orthogonal spaceship gun [Noam Elkies, Dave Greene] 
Oct 2002: c/2 wickstretcher [Dean Hickerson, Jason Summers] 
Oct 2000: versatile c/4 puffer [David Bell, Jason Summers] 
Jun 2000: versatile 2c/5 puffer [David Bell, Jason Summers with Paul Tooke] 
Jul 1999: c/12 gun [Stephen Silver, Jason Summers] 
Mar 1999: c/12 wickstretcher [Jason Summers with Dean Hickerson, David Buckingham] 
Feb 1999: 2c/5 puffer [Jason Summers] 
Jan 1999: c/4 puffer [Jason Summers] 
Jun 1998: versatile c/12 puffers [Stephen Silver, Dean Hickerson] 
Sep 1997: versatile c/5 puffers [David Bell] 
May 1997: c/5 puffer [Tim Coe, David Bell] 
Jun 1996: versatile c/3 puffers [David Bell] 
Apr 1996: c/3 puffer [David Bell] 


==Spaceship periods==
This table lists the known spaceship periods up to 36 for each
velocity. Periods not possible at any of the known velocities
are omitted to save space.

Yellow means that only "trivial"
examples exist, with no single section that repeats at the full
period.

<table border="1" cellspacing="0">

<tr><th rowspan="2" valign="top">Velocity</th>
<th colspan="29">Period</th></tr>

<tr>
<th bgcolor="#80ff80">2</th>
<th bgcolor="#80ff80">3</th>
<th bgcolor="#80ff80">4</th>
<th bgcolor="#80ff80">5</th>
<th bgcolor="#80ff80">6</th>
<th bgcolor="#80ff80">7</th>
<th bgcolor="#80ff80">8</th>
<th bgcolor="#80ff80">9</th>
<th bgcolor="#80ff80">10</th>
<th bgcolor="#80ff80">12</th>
<th bgcolor="#80ff80">14</th>
<th bgcolor="#80ff80">15</th>
<th bgcolor="#80ff80">16</th>
<th bgcolor="#80ff80">18</th>
<th bgcolor="#80ff80">20</th>
<th bgcolor="#80ff80">21</th>
<th bgcolor="#80ff80">22</th>
<th bgcolor="#80ff80">24</th>
<th bgcolor="#80ff80">25</th>
<th bgcolor="#80ff80">26</th>
<th bgcolor="#80ff80">27</th>
<th bgcolor="#80ff80">28</th>
<th bgcolor="#80ff80">30</th>
<th bgcolor="#80ff80">32</th>
<th bgcolor="#ffa0a0">33</th>
<th bgcolor="#ffa0a0">34</th>
<th bgcolor="#80ff80">35</th>
<th bgcolor="#80ff80">36</th>
<th>other</th></tr>

<tr>
<td>c/2 orth</td>
<td bgcolor="#80ff80">2</td><td> </td>
<td bgcolor="#80ff80">4</td><td> </td>
<td bgcolor="#80ff80">6</td><td> </td>
<td bgcolor="#80ff80">8</td><td> </td>
<td bgcolor="#80ff80">10</td>
<td bgcolor="#80ff80">12</td>
<td bgcolor="#80ff80">14</td><td> </td>
<td bgcolor="#80ff80">16</td>
<td bgcolor="#80ff80">18</td>
<td bgcolor="#80ff80">20</td><td> </td>
<td bgcolor="#80ff80">22</td>
<td bgcolor="#80ff80">24</td><td> </td>
<td bgcolor="#80ff80">26</td><td> </td>
<td bgcolor="#80ff80">28</td>
<td bgcolor="#80ff80">30</td>
<td bgcolor="#80ff80">32</td><td> </td>
<td bgcolor="#ffa0a0">34</td><td> </td>
<td bgcolor="#80ff80">36</td>
<td bgcolor="#80ff80">...</td>
</tr>

<tr><td>c/3 orth</td>
<td> </td>
<td bgcolor="#80ff80">3</td><td colspan="2"> </td>
<td bgcolor="#80ff80">6</td><td colspan="2"> </td>
<td bgcolor="#80ff80">9</td><td> </td>
<td bgcolor="#80ff80">12</td><td> </td>
<td bgcolor="#80ff80">15</td><td> </td>
<td bgcolor="#80ff80">18</td><td> </td>
<td bgcolor="#80ff80">21</td><td> </td>
<td bgcolor="#80ff80">24</td><td colspan="2"> </td>
<td bgcolor="#80ff80">27</td><td> </td>
<td bgcolor="#80ff80">30</td><td> </td>
<td bgcolor="#ffa0a0">33</td><td colspan="2"> </td>
<td bgcolor="#80ff80">36</td>
<td bgcolor="#80ff80">...</td>
</tr>

<tr><td>c/4 orth</td>
<td colspan="2"> </td>
<td bgcolor="#80ff80">4</td><td colspan="3"> </td>
<td bgcolor="#80ff80">8</td><td colspan="2"> </td>
<td bgcolor="#80ff80">12</td><td colspan="2"> </td>
<td bgcolor="#ffa0a0">16</td><td> </td>
<td bgcolor="#80ff80">20</td><td colspan="2"> </td>
<td bgcolor="#80ff80">24</td><td colspan="3"> </td>
<td bgcolor="#80ff80">28</td><td> </td>
<td bgcolor="#80ff80">32</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">36</td>
<td bgcolor="#80ff80">...</td>
</tr>

<tr><td>c/4 diag</td>
<td colspan="2"> </td>
<td bgcolor="#80ff80">4</td><td colspan="3"> </td>
<td bgcolor="#80ff80">8</td><td colspan="2"> </td>
<td bgcolor="#80ff80">12</td><td colspan="2"> </td>
<td bgcolor="#ffa0a0">16</td><td> </td>
<td bgcolor="#ffa0a0">20</td><td colspan="2"> </td>
<td bgcolor="#ffff80">24</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">28</td><td> </td>
<td bgcolor="#ffa0a0">32</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">36</td>
<td bgcolor="#80ff80">~4508, ...</td>
</tr>

<tr><td>2c/5 orth</td>
<td colspan="3"> </td>
<td bgcolor="#80ff80">5</td><td colspan="4"> </td>
<td bgcolor="#80ff80">10</td><td colspan="2"> </td>
<td bgcolor="#80ff80">15</td><td colspan="2"> </td>
<td bgcolor="#80ff80">20</td><td colspan="3"> </td>
<td bgcolor="#80ff80">25</td><td colspan="3"> </td>
<td bgcolor="#80ff80">30</td><td colspan="3"> </td>
<td bgcolor="#80ff80">35</td><td> </td>
<td bgcolor="#80ff80">...</td>
</tr>

<tr><td>c/5 orth</td>
<td colspan="3"> </td>
<td bgcolor="#80ff80">5</td><td colspan="4"> </td>
<td bgcolor="#80ff80">10</td><td colspan="2"> </td>
<td bgcolor="#80ff80">15</td><td colspan="2"> </td>
<td bgcolor="#ffa0a0">20</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">25</td><td colspan="3"> </td>
<td bgcolor="#80ff80">30</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">35</td><td> </td>
<td bgcolor="#80ff80">60, ...</td>
</tr>

<tr><td>c/5 diag</td>
<td colspan="3"> </td>
<td bgcolor="#80ff80">5</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">10</td><td colspan="2"> </td>
<td bgcolor="#ffa0a0">15</td><td colspan="2"> </td>
<td bgcolor="#ffa0a0">20</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">25</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">30</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">35</td><td> </td>
<td bgcolor="#80ff80">85, ...</td>
</tr>

<tr><td>c/6 orth</td>
<td colspan="4"> </td>
<td bgcolor="#80ff80">6</td><td colspan="4"> </td>
<td bgcolor="#80ff80">12</td><td colspan="3"> </td>
<td bgcolor="#80ff80">18</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">24</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">30</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">36</td>
<td bgcolor="#80ff80">156, 1212, ...</td>
</tr>

<tr><td>c/6 diag</td>
<td colspan="4"> </td>
<td bgcolor="#80ff80">6</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">12</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">18</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">24</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">30</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">36</td>
<td bgcolor="#80ff80">...</td>
</tr>

<tr><td>(2,1)c/6</td>
<td colspan="4"> </td>
<td bgcolor="#80ff80">6</td><td colspan="4"> </td>
<td bgcolor="#80ff80">12</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">18</td><td colspan="3"> </td>
<td bgcolor="#80ff80">24</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">30</td><td colspan="4"> </td>
<td bgcolor="#80ff80">36</td>
<td bgcolor="#80ff80">48, ...</td>
</tr>

<tr><td>c/7 orth</td>
<td colspan="5"> </td>
<td bgcolor="#80ff80">7</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">14</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">21</td><td colspan="5"> </td>
<td bgcolor="#ffa0a0">28</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">35</td><td> </td>
<td bgcolor="#80ff80">1204, ...</td>
</tr>

<tr><td>2c/7 orth</td>
<td colspan="5"> </td>
<td bgcolor="#80ff80">7</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">14</td><td colspan="4"> </td>
<td bgcolor="#80ff80">21</td><td colspan="5"> </td>
<td bgcolor="#ffa0a0">28</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">35</td><td> </td>
<td bgcolor="#80ff80">42, 105, ~1162, ...</td>
</tr>

<tr><td>3c/7 orth</td>
<td colspan="5"> </td>
<td bgcolor="#80ff80">7</td><td colspan="4"> </td>
<td bgcolor="#80ff80">14</td><td colspan="4"> </td>
<td bgcolor="#80ff80">21</td><td colspan="5"> </td>
<td bgcolor="#80ff80">28</td><td colspan="4"> </td>
<td bgcolor="#80ff80">35</td><td> </td>
<td bgcolor="#80ff80">42, 63, 84, ...</td>
</tr>

<tr><td>c/7 diag</td>
<td colspan="5"> </td>
<td bgcolor="#80ff80">7</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">14</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">21</td><td colspan="5"> </td>
<td bgcolor="#ffa0a0">28</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">35</td><td> </td>
<td bgcolor="#80ff80">...</td>
</tr>

<tr><td>c/10 orth</td>
<td colspan="8"> </td>
<td bgcolor="#80ff80">10</td><td colspan="5"> </td>
<td bgcolor="#80ff80">20</td><td colspan="7"> </td>
<td bgcolor="#ffa0a0">30</td><td colspan="5"> </td>
<td bgcolor="#80ff80">320, ...</td>
</tr>

<tr><td>c/12 diag</td>
<td colspan="9"> </td>
<td bgcolor="#ffa0a0">12</td><td colspan="7"> </td>
<td bgcolor="#ffa0a0">24</td><td colspan="9"> </td>
<td bgcolor="#ffa0a0">36</td>
<td bgcolor="#80ff80">96, 192, ...</td>
</tr>

<tr><td>17c/45 orth</td>
<td colspan="28"> </td>
<td bgcolor="#80ff80">270, ...</td>
</tr>

<tr><td>(23,5)c/79</td>
<td colspan="28"> </td>
<td bgcolor="#80ff80">158, ...</td>
</tr>

<tr><td>31c/240 orth</td>
<td colspan="28"> </td>
<td bgcolor="#80ff80">240, ...</td>
</tr>

</table>

Most recent discoveries, excluding new velocities: 
12 May 2021: (2,1)c/6 p24 and p36 ['May13' with Adam P. Goucher] 
10 May 2021: (2,1)c/6 p12 [Adam P. Goucher] 
5 Jan 2021: 3c/7 orth p35 ['iNoMed', 'bubblegum', Dylan Chen] 
4 Jan 2021: 3c/7 orth p14 ['praosylen', 'wwei23', Dylan Chen] 
3 Jan 2021: 3c/7 orth p21 [Matthias Merzenich, 'bubblegum', 'iNoMed' with Dylan Chen, Tim Coe] 
6 Dec 2020: 2c/7 orth p21 [John Winston Garth with David Eppstein] 
11 Oct 2018: c/10 orth p20 [Christoph Reinthaler with Simon Ekström] 
Aug 2017: c/4 orth p28 [Matthias Merzenich] 
Jul 2017: c/6 orth p12 and p18 [Matthias Merzenich] 
Jun 2016: 3c/7 orth p28 [Tim Coe, Stephen Silver] 
Sep 2015: nontrivial c/3 orth p30 [Matthias Merzenich, Josh Ball, David Bell] 
Oct 2010: nontrivial c/4 orth p24 [Matthias Merzenich] 
Sep 2005: c/4 diag p12 [Hartmut Holzwart] 
Nov 2004: c/5 orth p10 [Paul Tooke] 
Nov 2003: c/4 orth p32 [Paul Tooke with Jason Summers] 
Feb 2003: c/2 orth p18 [Paul Tooke] 
Dec 2002: nontrivial c/3 orth p18 [David Bell, Jason Summers] 
Oct 2002: c/3 orth p27 [Paul Tooke] 
May 2002: 2c/5 orth p35 [Paul Tooke] 
8 Feb 2002: 2c/5 orth p15 and p25 [Paul Tooke] 
4 Feb 2002: 2c/5 orth p20 and p30 [Paul Tooke] 
14 Jan 2002: c/3 orth p21 [Paul Tooke] 
8 Jan 2002: c/2 orth p30 [Paul Tooke] 
Dec 2001: c/2 orth p10 and p14 [Paul Tooke] 
May 2001: c/2 orth p22 [David Bell, Paul Tooke with Jason Summers] 
Apr 2001: c/2 orth p26 [David Bell, Paul Tooke] 
Dec 2000: c/4 diag p8 [Jason Summers] 
Nov 2000: c/3 orth p12 [David Bell, Jason Summers] 
Oct 2000: c/4 orth p8 and p12 [Jason Summers], and resulting trivial p24 
Sep 2000: c/4 orth p20 [David Bell with Jason Summers] 
May 2000: 2c/5 orth p10 [David Bell, Paul Tooke] 
Feb 1999: c/3 orth p6 [Stephen Silver], and resulting trivial p18 and p30 
May 1998: c/5 orth p30 [David Bell with Noam Elkies] 
Mar 1998: c/3 orth p36 [David Bell] 
Dec 1997: c/5 orth p15 [Noam Elkies with Tim Coe] 
Apr 1996: c/3 orth p24 [David Bell] 
?May 1994: c/2 orth p28 [Hartmut Holzwart with Alan Hensel] 
Dec 1993: c/3 orth p15 [David Bell] 
Jul 1993: c/2 orth p6 [David Bell] 
May 1992: c/3 orth p9 [David Bell] 


==c/2 orthogonal spaceships, puffers, rakes==

S=Spaceship, P=Puffer, R=Rake.

<table style="font-family:Courier New,monospace" border=1 cellspacing=0>
<tr>
<td>  2:SPR</td>
<td>  4:SPR</td>
<td>  6:SPR</td>
<td>  8:SPR</td>
<td> 10:SPr</td>
<td> 12:SPR</td>
<td> 14:SPr</td>
<td> 16:SPR</td>
<td> 18:SPR</td>
<td> 20:SPR</td>
<td> 22:SPR</td>
<td> 24:SPR</td>
</tr>
<tr>
<td> 26:SPR</td>
<td> 28:SPR</td>
<td> 30:SPR</td>
<td> 32:SPR</td>
<td> 34:sPr</td>
<td> 36:SPR</td>
<td> 38:SPR</td>
<td> 40:SPR</td>
<td> 42:SPR</td>
<td> 44:SPR</td>
<td> 46:SPR</td>
<td> 48:SPR</td>
</tr>
<tr>
<td> 50:SPR</td>
<td> 52:SPR</td>
<td> 54:SPR</td>
<td> 56:SPR</td>
<td> 58:SPR</td>
<td> 60:SPR</td>
<td> 62:SPR</td>
<td> 64:SPR</td>
<td> 66:SPR</td>
<td> 68:SPR</td>
<td> 70:SPR</td>
<td> 72:SPR</td>
</tr>
<tr>
<td> 74:spr</td>
<td> 76:SPR</td>
<td> 78:SPR</td>
<td> 80:SPR</td>
<td> 82:spr</td>
<td> 84:SPR</td>
<td> 86:spr</td>
<td> 88:SPR</td>
<td> 90:SPR</td>
<td> 92:SPR</td>
<td> 94:SPR</td>
<td> 96:SPR</td>
</tr>
<tr>
<td> 98:SPR</td>
<td>100:SPR</td>
<td>102:SPR</td>
<td>104:SPR</td>
<td>106:spr</td>
<td>108:SPR</td>
<td>110:SPR</td>
<td>112:SPR</td>
<td>114:SPR</td>
<td>116:SPR</td>
<td>118:spr</td>
<td>120:SPR</td>
</tr>
<tr>
<td>122:spr</td>
<td>124:SPR</td>
<td>126:SPR</td>
<td>128:SPR</td>
<td>130:SPR</td>
<td>132:SPR</td>
<td>134:SPR</td>
<td>136:SPR</td>
<td>138:SPR</td>
<td>140:SPR</td>
<td>142:spr</td>
<td>144:SPR</td>
</tr>
<tr>
<td>146:spr</td>
<td>148:spr</td>
<td>150:SPR</td>
<td>152:SPR</td>
<td>154:SPR</td>
<td>156:SPR</td>
<td>158:spr</td>
<td>160:SPR</td>
<td>162:SPR</td>
<td>164:SPR</td>
<td>166:spr</td>
<td>168:SPR</td>
</tr>
<tr>
<td>170:spr</td>
<td>172:spr</td>
<td>174:SPR</td>
<td>176:SPR</td>
<td>178:spr</td>
<td>180:SPR</td>
<td>182:SPR</td>
<td>184:SPR</td>
<td>186:SPR</td>
<td>188:SPR</td>
<td>190:SPR</td>
<td>192:SPR</td>
</tr>
<tr>
<td>194:spr</td>
<td>196:SPR</td>
<td>198:SPR</td>
<td>200:SPR</td>
<td colspan="8"> </td>
</tr>
</table>

For periods over 200, this section only includes periods that are a
multiple of 4 but not 8. All multiples of 8 are known. Periods over 200
that are not a multiple of 4 are not documented here.

<table style="font-family:Courier New,monospace" border=1 cellspacing=0>
<tr>
<td> </td>
<td>204:SPR</td>
<td>212:SPR</td>
<td>220:SPR</td>
<td>228:SPR</td>
<td>236:SPR</td>
<td>244:spr</td>
<td>252:SPR</td>
<td>260:SPR</td>
<td>268:SPR</td>
<td>276:SPR</td>
<td>284:SPR</td>
</tr>
<tr>
<td>292:SPR</td>
<td>300:SPR</td>
<td>308:SPR</td>
<td>316:spr</td>
<td>324:SPR</td>
<td>332:SPR</td>
<td>340:SPR</td>
<td>348:SPR</td>
<td>356:spr</td>
<td>364:SPR</td>
<td>372:SPR</td>
<td>380:SPR</td>
</tr>
<tr>
<td>388:spr</td>
<td>396:SPR</td>
<td>404:SPR</td>
<td>412:spr</td>
<td>420:SPR</td>
<td>428:SPR</td>
<td>436:SPR</td>
<td>444:SPR</td>
<td>452:spr</td>
<td>460:SPR</td>
<td>468:SPR</td>
<td>476:SPR</td>
</tr>
<tr>
<td>484:SPR</td>
<td>492:SPR</td>
<td>500:SPR</td>
<td>508:spr</td>
<td>516:SPR</td>
<td>524:SPR</td>
<td>532:SPR</td>
<td>540:SPR</td>
<td>548:SPR</td>
<td>556:spr</td>
<td>564:SPR</td>
<td>572:SPR</td>
</tr>
<tr><td colspan=12>
All higher multiples of 4 are known.</td>
</tr>
</table>

==c/3 spaceships, puffers, rakes==
S=Spaceship, P=Puffer, R=Rake.
A yellow S means that
only "trivial" spaceships are known, with no single
section that repeats at the full period.

<table style="font-family:Courier New,monospace" border=1 cellspacing=0>
<tr>
<td>  3:SPR</td>
<td>  6:SPR</td>
<td>  9:SPr</td>
<td> 12:Spr</td>
<td> 15:SPr</td>
<td> 18:SPr</td>
<td> 21:Spr</td>
<td> 24:SPr</td>
<td> 27:SPR</td>
<td> 30:SPr</td>
<td> 33:spr</td>
<td> 36:SPR</td>
</tr>
<tr>
<td> 39:spr</td>
<td> 42:Spr</td>
<td> 45:SPR</td>
<td> 48:SPR</td>
<td> 51:spr</td>
<td> 54:SPR</td>
<td> 57:spr</td>
<td> 60:spr</td>
<td> 63:spr</td>
<td> 66:spr</td>
<td> 69:spr</td>
<td> 72:SPR</td>
</tr>
<tr>
<td> 75:spr</td>
<td> 78:SPR</td>
<td> 81:SPR</td>
<td> 84:SPR</td>
<td> 87:spr</td>
<td> 90:SPR</td>
<td> 93:spr</td>
<td> 96:SPR</td>
<td> 99:spr</td>
<td>102:spr</td>
<td>105:spr</td>
<td>108:SPR</td>
</tr>
<tr>
<td>111:spr</td>
<td>114:SPR</td>
<td>117:spr</td>
<td>120:spr</td>
<td>123:spr</td>
<td>126:spr</td>
<td>129:SPR</td>
<td>132:spr</td>
<td>135:SPR</td>
<td>138:spr</td>
<td>141:spr</td>
<td>144:SPR</td>
</tr>
<tr>
<tr><td colspan=12>
All periods over 144 are known. *</td>
</tr>
</table>

* Here is a [http://entropymine.com/jason/life/ship-c3p144demo.lif pattern that demonstrates]
that all periods 144 and higher can, in principle, be constructed.
(Actually, this can probably be reduced to around 90-100).
The method of construction is not easy, and it could be argued that these
periods are not really "known".

==c/4 orthogonal spaceships, puffers, rakes==
S=Spaceship, P=Puffer, R=Rake. A yellow S means that
only "trivial" spaceships are known, with no single
section that repeats at the full period.

<table style="font-family:Courier New,monospace" border=1 cellspacing=0>
<tr>
<td>  4:SPR</td>
<td>  8:SPR</td>
<td> 12:Spr</td>
<td> 16:spr</td>
<td> 20:SPr</td>
<td> 24:SPR</td>
<td> 28:SPr</td>
<td> 32:SPR</td>
<td> 36:spr</td>
<td> 40:Spr</td>
<td> 44:SPR</td>
<td> 48:SPR</td>
</tr>

<tr>
<td> 52:SPR</td>
<td> 56:Spr</td>
<td> 60:spr</td>
<td> 64:SPR</td>
<td> 68:spr</td>
<td> 72:SPR</td>
<td> 76:SPR</td>
<td> 80:SPr</td>
<td> 84:SPR</td>
<td> 88:SPR</td>
<td> 92:spr</td>
<td> 96:SPR</td>
</tr>
<tr>
<td>100:SPR</td>
<td>104:SPR</td>
<td>108:spr</td>
<td>112:spr</td>
<td>116:spr</td>
<td>120:SPR</td>
<td colspan="6"> </td>
</tr>
<tr>
<tr><td colspan=12>
All periods over 120 are known.</td>
</tr>
</table>

==2c/5 spaceships, puffers, rakes==
Almost all the 2c/5 technology referred to below was found in whole or in part
by Paul Tooke. The original method of building p205+10N and p410+5N rakes was
developed mostly by David Bell and Jason Summers; Paul Tooke improved it to p200+5N and later
p185+5N.

S=Spaceship, P=Puffer, R=Rake.

<table style="font-family:Courier New,monospace" border=1 cellspacing=0>
<tr>
<td>  5:SPR</td>
<td> 10:SPr</td>
<td> 15:SPr</td>
<td> 20:SPR</td>
<td> 25:SPR</td>
<td> 30:SPR</td>
<td> 35:SPR</td>
<td> 40:SPR</td>
<td> 45:SPR</td>
<td> 50:SPR</td>
<td> 55:SPR</td>
<td> 60:SPR</td>
</tr>
<tr><td colspan=12>
All periods over 60 are known.</td>
</tr>
</table>

== See also ==

* [[LifeWiki:Spaceship Search Status Page|Spaceship Search Status Page]]

OCA:2×2

2014-11-25T02:07:30Z

Extrementhusiast: /* Higher-period oscillators */ fixing broken link

{{Rule|name=2×2|imgname=2x2|s=125|b=36|char=Chaotic|animated=true}}
'''2×2''' is a [[cellular automaton#Well-known Life-like cellular automata|Life-like cellular automaton]] in which [[cell]]s survive from one generation to the next if they have 1, 2 or 5 [[neighbours]], and are born if they have 3 or 6 neighbours. It thus has rulestring "B36/S125". Patterns under the rule have a chaotic evolution similar to those under the [[Conway's Game of Life|standard Life rules]], but the chaos tends to die out much more quickly.

Its name comes from the fact that patterns made up of 2×2 blocks continue to evolve as patterns made up of 2×2 blocks.

==Block evolution==
The 2×2 rule can emulate a simpler cellular automaton that acts on each 2×2 block. The emulated automaton is a [[block cellular automaton]] that makes use of the [[Margolus neighbourhood]] and evolves according to the following six rules:

[[Image:2x2block_evolve.png|framed|center|The 2x2 block evolution rule]]

Note that, as this emulates a Margolus neighbourhood, the resulting block appears at the center of the original four blocks. Thus, patterns that are originally made up of 2×2 blocks will forever be made up of 2×2 blocks, but the block partition will be offset by one [[cell]] in the odd [[generation]]s from the even generations. By examining the image above, one can see that a Life-like cellular automaton will emulate a Margolus block cellular automaton if and only if the following four equations are satisfied: B4 = S4, B5 = S6 = S7, B3 = S5, B1 = B2 = S3, where the first equation for example means that the birth condition for cells with four neighbours must equal the survival condition for cells with four neighbours. There are 212 = 4096 such rules, which emulate 26 = 64 different block cellular automata.

This rule can be seen to satisfy the above equations because 4 is neither a birth condition nor a survival condition, 5 is not a birth condition and 6 and 7 are not survival conditions, 3 is a birth condition and 5 is a survival condition, and 3 is not a survival condition and 1 and 2 are not birth conditions.

==Notable patterns==
A large variety of [[still life]]s and [[oscillators]] appear spontaneously from randomly generated starting states. There is also a somewhat rare naturally-occurring [[spaceship]], which travels at c/8 diagonally.

===Still lifes===
Still lifes are generally smaller in 2×2 than in Life, with the smallest occurring having a
population of just 2 cells. These still life patterns still tend to be similar to Life patterns in terms
of structure, for example often having islands that stabilise each other.
Many still lifes from Life are also still lifes in 2×2, For example, the [[beehive]], [[tub]], [[loaf]], [[pond]] and [[mango]].
[[Image:2x2stills.png|framed|center|Some sample still lifes. {{JavaRLE|2x2stills}}]]

====Enumerating still lifes====
The following table catalogs all still lifes in the 2x2 rule with 10 or fewer [[cell]]s.<ref>Computed using the ''EnumStillLifes.c'' script located [http://www.conwaylife.com/forums/viewtopic.php?f=9&t=44 here].</ref>

{| class="wikitable" style="margin-left:auto;margin-right:auto;"
|-
! Size
! Count
! Image
! Links
|-
| 1
| 0
|
|
|-
| 2
| 2
| [[Image:2x22cellstilllifes.png]]
| {{JavaRLE|2x22cellstilllifes}}
|-
| 3
| 1
| [[Image:2x23cellstilllifes.png]]
| {{JavaRLE|2x23cellstilllifes}}
|-
| 4
| 3
| [[Image:2x24cellstilllifes.png]]
| {{JavaRLE|2x24cellstilllifes}}
|-
| 5
| 4
| [[Image:2x25cellstilllifes.png]]
| {{JavaRLE|2x25cellstilllifes}}
|-
| 6
| 9
| [[Image:2x26cellstilllifes.png]]
| {{JavaRLE|2x26cellstilllifes}}
|-
| 7
| 10
| [[Image:2x27cellstilllifes.png]]
| {{JavaRLE|2x27cellstilllifes}}
|-
| 8
| 27
| [[Image:2x28cellstilllifes.png]]
| {{JavaRLE|2x28cellstilllifes}}
|-
| 9
| 48
| [[Image:2x29cellstilllifes.png]]
| {{JavaRLE|2x29cellstilllifes}}
|-
| 10
| 126
| [[Image:2x210cellstilllifes.png]]
| {{JavaRLE|2x210cellstilllifes}}
|}

===Common still lifes===
The following table lists the twenty most common [[strict still life]]s that arise after several generations of a [[soup|random starting pattern]].<ref name="freqres">Full results are located [http://www.conwaylife.com/forums/download/file.php?id=18 here].</ref> The "approx. rel. freq." column gives an estimate of the proportion of all randomly-occurring still lifes that will be of the given type.
<table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td align="center" width="50%" valign="top">
{| class="wikitable" style="margin-left:auto;margin-right:auto;"
|-
! Rank
! Pattern
! # of cells
! Approx. rel. freq. (out of 1.00)
|-
! 1
| [[Image:2x2_stilllife_rank1.png]]
| 2
| 0.582
|-
! 2
| [[Image:2x2_stilllife_rank2.png]]
| 2
| 0.251
|-
! 3
| [[Image:2x2_stilllife_rank3.png]]
| 5
| 0.052
|-
! 4
| [[Image:2x2_stilllife_rank4.png]]
| 3
| 0.0498
|-
! 5
| [[Image:2x2_stilllife_rank5.png]]
| 6
| 0.0252
|-
! 6
| [[Image:2x2_stilllife_rank6.png]]
| 4
| 0.019
|-
! 7
| [[Image:2x2_stilllife_rank7.png]]
| 5
| 0.00725
|-
! 8
| [[Image:2x2_stilllife_rank8.png]]
| 6
| 0.00384
|-
! 9
| [[Image:2x2_stilllife_rank9.png]]
| 4
| 0.00322
|-
! 10
| [[Image:2x2_stilllife_rank10.png]]
| 5
| 0.00195
|}
</td><td align="center" width="50%">
{| class="wikitable" style="margin-left:auto;margin-right:auto;"
|-
! Rank
! Pattern
! # of cells
! Approx. rel. freq. (out of 1.00)
|-
! 11
| [[Image:2x2_stilllife_rank11.png]]
| 4
| 0.00124
|-
! 12
| [[Image:2x2_stilllife_rank12.png]]
| 7
| 5.8×10-4
|-
! 13
| [[Image:2x2_stilllife_rank13.png]]
| 6
| 5.63×10-4
|-
! 14
| [[Image:2x2_stilllife_rank14.png]]
| 6
| 4.04×10-4
|-
! 15
| [[Image:2x2_stilllife_rank15.png]]
| 7
| 2.56×10-4
|-
! 16
| [[Image:2x2_stilllife_rank16.png]]
| 6
| 2.23×10-4
|-
! 17
| [[Image:2x2_stilllife_rank17.png]]
| 8
| 1.94×10-4
|-
! 18
| [[Image:2x2_stilllife_rank18.png]]
| 8
| 1.28×10-4
|-
! 19
| [[Image:2x2_stilllife_rank19.png]]
| 5
| 9.6×10-5
|-
! 20
| [[Image:2x2_stilllife_rank20.png]]
| 6
| 7.68×10-5
|}
</td></tr></table>

===Oscillators===
A large variety of oscillators of various periods occur naturally in 2×2.

====Period two oscillators====
Many of the [[period]] 2 oscillators in 2×2 have a single-cell 'on-off' [[rotor]], with small variations in the
[[stator]] of the oscillator. These occur fairly frequently naturally.
[[Image:2x2_p2s.gif|framed|center|Some period 2 oscillators. {{JavaRLE|2x2period2oscillators}} ]]

====Higher-period oscillators====
One of the most interesting aspects of the 2×2 rule is the large number of naturally-occurring higher-period oscillators. Oscillators with periods 3, 4, 5, 6, 10, 14, 22 and 26 are all relatively frequent, and oscillators are also known for periods 8, 11, 12, 17, 24 and 60.
[[Image:2x2_oscillator_stamp.png|framed|center|Many oscillators with different periods from 2 through 60. {{JavaRLE|2x2oscillators}} ]]

One simple infinite family of oscillators is given by the 2×(4n) boxes of alive [[cell]]s.<ref>{{Cite web|url=http://www.nathanieljohnston.com/index.php/2009/05/rectangular-oscillators-in-the-2x2-b36s125-cellular-automaton/|title=Rectangular Oscillators in the 2×2 (B36/S125) Cellular Automaton|author=Nathaniel Johnston|date=May 22, 2009|accessdate=May 24, 2009}}</ref> Such oscillators can be analyzed by noting that each [[phase]] of their oscillation can be represented as an exclusive or (XOR) of rectangles of different sizes that emulate the [[Rule 90]] cellular automaton.<ref>{{Cite web|url=http://groups.google.tk/group/comp.theory.cell-automata/browse_frm/thread/b059a5fb0c796743/c5683380affb8068?lnk=gst&q=2x2#c5683380affb8068|title=Life 2x2: long oscillator|publisher=comp.theory.cell-automata|accessdate=May 24, 2009|date=November 2, 2001}}</ref> The period of these oscillators for n = 1, 2, 3, ... is given by the sequence 2, 6, 14, 14, 62, 126, 30, 30, 1022, ... (Sloane's [https://oeis.org/A160657 A160657]).

====Naturally occurring oscillators====
The following table lists the twenty most common oscillators that arise after several generations of a [[soup|random starting pattern]].<ref name="freqres" /> Of particular interest are some quite high-period oscillators that appear abnormally frequently (in particular, the period 26 [[stairstep hexomino]] is the third most common oscillator). The "approx. rel. freq." column gives an estimate of the proportion of all randomly-occurring oscillators that will be of the given type.
<table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td align="center" width="50%" valign="top">
{| class="wikitable" style="margin-left:auto;margin-right:auto;"
|-
! Rank
! Pattern
! [[Period]]
! Minimum # of [[cell]]s
! Approx. rel. freq. (out of 1.00)
|-
! 1
| [[Image:2x2_oscillator_rank1.gif]]
| 2
| 5
| 0.494
|-
! 2
| [[Image:2x2_oscillator_rank2.gif]]
| 2
| 8
| 0.204
|-
! 3
| [[Image:2x2_oscillator_rank3.gif]]
| 26
| 6
| 0.0698
|-
! 4
| [[Image:2x2_oscillator_rank4.gif]]
| 2
| 5
| 0.0514
|-
! 5
| [[Image:2x2_oscillator_rank5.gif]]
| 4
| 6
| 0.0332
|-
! 6
| [[Image:2x2_oscillator_rank6.gif]]
| 14
| 7
| 0.0324
|-
! 7
| [[Image:2x2_oscillator_rank7.gif]]
| 4
| 6
| 0.0285
|-
! 8
| [[Image:2x2_oscillator_rank8.gif]]
| 2
| 6
| 0.0217
|-
! 9
| [[Image:2x2_oscillator_rank9.gif]]
| 4
| 6
| 0.0169
|-
! 10
| [[Image:2x2_oscillator_rank10.gif]]
| 4
| 7
| 0.0152
|}
</td><td align="center" width="50%">
{| class="wikitable" style="margin-left:auto;margin-right:auto;"
|-
! Rank
! Pattern
! [[Period]]
! Minimum # of [[cell]]s
! Approx. rel. freq. (out of 1.00)
|-
! 11
| [[Image:2x2_oscillator_rank11.gif]]
| 2
| 8
| 0.00848
|-
! 12
| [[Image:2x2_oscillator_rank12.gif]]
| 2
| 6
| 0.007
|-
! 13
| [[Image:2x2_oscillator_rank13.gif]]
| 10
| 12
| 0.00457
|-
! 14
| [[Image:2x2_oscillator_rank14.gif]]
| 2
| 7
| 0.00196
|-
! 15
| [[Image:2x2_oscillator_rank15.gif]]
| 2
| 7
| 0.00175
|-
! 16
| [[Image:2x2_oscillator_rank16.gif]]
| 2
| 6
| 0.00175
|-
! 17
| [[Image:2x2_oscillator_rank17.gif]]
| 14
| 6
| 0.00156
|-
! 18
| [[Image:2x2_oscillator_rank18.gif]]
| 2
| 8
| 0.00106
|-
! 19
| [[Image:2x2_oscillator_rank19.gif]]
| 6
| 16
| 0.00106
|-
! 20
| [[Image:2x2_oscillator_rank20.gif]]
| 22
| 8
| 0.00043
|}
</td></tr></table>

[[Image:2x2glider.gif|framed|right|The c/8 glider. {{JavaRLE|2x2glider|brief}} ]]

===Spaceships===
There are a number of spaceships known to occur in 2×2 <ref>{{cite web|url=http://fano.ics.uci.edu/ca/rules/b36s125/ |title=2x2 (B36/S125) |publisher=David Eppstein|accessdate=March 18, 2009}}</ref>. Of these, only one is known to occur naturally from [[soup]]. It travels at c/8 diagonally.

===Infinite growth===
The first known infinitely-growing pattern in 2×2 was discovered in June 2009 by Nathaniel Johnston while testing the [http://www.conwaylife.com/soup/ Online Life-Like CA Soup Search] -- a c/8 diagonal [[wickstretcher]] based on the above c/8 glider.<ref>{{Cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=114|title=First infinite growth in 2x2 (B36/S125)?|publisher=ConwayLife.com forums|accessdate=July 13, 2009}}</ref><ref>{{Cite web|url=http://www.nathanieljohnston.com/index.php/2009/07/the-online-life-like-ca-soup-search/|title=The Online Life-Like CA Soup Search|publisher=NathanielJohnston.com|date=July 11, 2009|accessdate=July 13, 2009}}</ref> No [[gun]]s have yet been discovered in 2×2.

[[Image:2x2linepuffer.gif|center|framed|The c/8 wickstretcher {{JavaRLE|2x2linepuffer|brief}}]]

==References==
<references />

User talk:Patjohnson144

2012-08-22T17:05:51Z

Extrementhusiast: Warning to vandal

==Your vandalism==
Please stop vandalizing the pages of LifeWiki. You will be mentioned as a vandal on the forums.

Roteightor

2010-06-08T20:07:34Z

Extrementhusiast:

__NOTOC__{{Oscillator|name=Roteightor|pname=roteightor|c=35|p=8|bx=14|by=14|h=11.0|discoverer=Robert Wainwright|discoveryear=1972|animated=yes|life105=true|life106=true|plaintext=true|rle=true}}
'''Roteightor''' is a [[period]] [[:Category:Oscillators with period 8|8]] [[oscillator]] with 35 [[cell]]s. It was discovered by [[Robert Wainwright]] in [[:Category:Patterns found in 1972|1972]]. It consists of four [[eater 1]]s [[hassle|hassling]] a [[fleet]] predecessor. It can also be extended as an [[agar]].

==Image gallery==
{|
|-
|[[Image:roteightor_extension.png|framed|left|An extension of roteightor {{JavaRLE|roteightorextension|brief}}]]
|}

==See also==
*[[35P52]]
*[[Dinner table]]

==External links==
{{LinkWeisstein|Roteightor.html}}
{{LinkLexicon|lex_r.htm#roteightor}}

User talk:Extrementhusiast

2010-04-10T04:41:09Z

Extrementhusiast:

Welcome to my talk page.

= The Talk =
(no talk yet)

User talk:Extrementhusiast

2010-04-10T04:40:51Z

Extrementhusiast: new page

Welcome to my talk page.

= The Talk =

User:Extrementhusiast/Essays/Rule B34S267

2010-04-10T04:38:33Z

Extrementhusiast: changing captions

File:Fasttoad.gif

2010-04-10T04:35:42Z

Extrementhusiast:

File:Fastblinker.gif

2010-04-10T04:33:13Z

Extrementhusiast: a faster replacement

a faster replacement

User:Extrementhusiast/Essays/Rule B34S267

2010-04-10T04:32:27Z

Extrementhusiast: /* Oscillators */

File:Extensiblefuseosc2 b34s267.gif

2010-04-10T04:28:16Z

Extrementhusiast: all done!!!!! yay!!!!!

all done!!!!! yay!!!!!

File:Extensiblefuseosc b34s267.gif

2010-04-10T04:26:40Z

Extrementhusiast: unfortunately, added another one

unfortunately, added another one

User:Extrementhusiast/Essays/Rule B34S267

2010-04-10T04:24:16Z

Extrementhusiast: /* Oscillators */

File:Fuse b34s267.gif

2010-04-10T04:22:58Z

Extrementhusiast: one left!!!

one left!!!

User:Extrementhusiast/Essays/Rule B34S267

2010-04-10T04:22:30Z

Extrementhusiast: /* Other Patterns */

User:Extrementhusiast/Essays/Rule B34S267

2010-04-10T04:22:15Z

Extrementhusiast: /* Other Patterns */

File:WXosc b34s267.gif

2010-04-10T04:11:50Z

Extrementhusiast: just two left!

just two left!

File:Exploder2 b34s267.gif

2010-04-10T04:07:38Z

Extrementhusiast: three left!

three left!

File:Exploder b34s267.gif

2010-04-10T04:03:48Z

Extrementhusiast: just four left!

just four left!

File:Extendedsmalltoad b34s267.gif

2010-04-10T02:56:15Z

Extrementhusiast: at least there's only five images left

at least there's only five images left

User:Extrementhusiast/Essays/Rule B34S267

2010-04-10T02:52:51Z

Extrementhusiast:

File:Doublesamesmalltoad b34s267.gif

2010-04-10T02:33:17Z

Extrementhusiast: why do I have to write these?

why do I have to write these?

File:Doubledifferentsmalltoad b34s267.gif

2010-04-10T02:30:27Z

Extrementhusiast: that was a long filename

that was a long filename

File:Largebend b34s267.gif

2010-04-10T02:25:32Z

Extrementhusiast: this is boring

this is boring

File:Curvedbend b34s267.gif

2010-04-10T02:21:28Z

Extrementhusiast: yeah, yeah...

yeah, yeah...

File:Straightbend b34s267.gif

2010-04-10T02:19:26Z

Extrementhusiast: this is monotonous (is that spelled correctly?)

this is monotonous (is that spelled correctly?)

File:Lines b34s267.gif

2010-04-10T02:14:15Z

Extrementhusiast: when will these stop?

when will these stop?

File:Spreader b34s267.gif

2010-04-10T02:12:00Z

Extrementhusiast: another image

another image

User:Extrementhusiast/Essays/Rule B34S267

2010-04-04T03:59:02Z

Extrementhusiast: /* Oscillators */

File:Key b34s267.gif

2010-04-04T03:45:28Z

Extrementhusiast: just making up these boring summaries

just making up these boring summaries

File:Doubletoad b34s267.gif

2010-04-04T03:40:35Z

Extrementhusiast: no end in sight

no end in sight

File:Pond b34s267.gif

2010-04-04T03:36:02Z

Extrementhusiast: and again and again

and again and again

File:Biggrin b34s267.gif

2010-04-04T03:17:05Z

Extrementhusiast: and yet again

and yet again

User:Extrementhusiast/Essays/Rule B34S267

2010-04-04T03:16:36Z

Extrementhusiast:

File:Clock b34s267.gif

2010-04-04T03:11:37Z

Extrementhusiast: and again

and again

User:Extrementhusiast/Essays/Rule B34S267

2010-04-04T03:11:19Z

Extrementhusiast: /* Oscillators */

User:Extrementhusiast/Essays/Rule B34S267

2010-04-04T03:07:24Z

Extrementhusiast:

File:Largeortho b34s267.gif

2010-04-04T03:02:43Z

Extrementhusiast: and again

and again

User:Extrementhusiast/Essays/Rule B34S267

2010-04-04T02:48:42Z

Extrementhusiast:

File:Smallortho b34s267.gif

2010-04-04T02:44:57Z

Extrementhusiast: yet another image

yet another image

File:Diag01 b34s267.gif

2010-04-04T01:17:45Z

Extrementhusiast: another one

another one

User:Extrementhusiast/Essays/Rule B34S267

2010-04-04T01:17:23Z

Extrementhusiast:

User:Extrementhusiast/Essays/Rule B34S267

2010-04-04T01:14:00Z

Extrementhusiast:

User:Extrementhusiast/Essays/Rule B34S267

2010-04-04T01:13:00Z

Extrementhusiast: extension change

File:Pioct b34s267.gif

2010-04-04T01:12:20Z

Extrementhusiast: yet another Essays image

yet another Essays image

User:Extrementhusiast/Essays/Rule B34S267

2010-04-04T01:11:39Z

Extrementhusiast:

User:Extrementhusiast/Essays/Rule B34S267

2010-04-04T01:09:28Z

Extrementhusiast:

File:Fakeswitch b34s267.gif

2010-04-04T01:08:54Z

Extrementhusiast: another image for Essays section

another image for Essays section

User:Extrementhusiast/Essays/Rule B34S267

2010-04-04T01:08:14Z

Extrementhusiast: /* Oscillators */

File:Smalltoadb34s267 01.gif

2010-04-04T00:59:40Z

Extrementhusiast: adding to Essays section in my userpage

adding to Essays section in my userpage