754P7: Difference between revisions

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Line 9: Line 9:
|h            = 327.4
|h            = 327.4
|v            = 0.69
|v            = 0.69
|discoverer  = wwei23
|symmetry    = -e
|discoverer  = Aleph
|discoverer2  = cvojan
|discoverer2  = cvojan
|discoveryear = 2021
|discoveryear = 2021
Line 19: Line 20:
|plaintext    = true
|plaintext    = true
|rle          = true
|rle          = true
|animated    = true
|apgcode      = xp7_y3695q88q596zy18o69aaggaa96o8zxo8bq0vgvppvgv0qb8ozy4mkmkkmkmzxc88c0t4tcct4t0c88czy0gbdgb8b66b8bgdbgzx121e929dwd929e121zy4sc4w4cszy06a8882kssk2888a6zxc88mljl0ii0ljlm88czwokkbag267w762gabkkoz0oo0u3c48qk22kq84c3u0ooz0ckgv0d88agmmga88d0vgkczy065112rpwpr21156z031e80gj411w114jg08e13zx35t0bg37oo73gb0t53z08e1u123cgy0gc321u1e8zwgi3s53ady0da35s3igzwhaqh6p5g8w8g5p6hqahz01226gmll5qeeq5llmg6221zj2akgp1uug9559guu1pgka2jz11da8c0siey0eis0c8ad11zy03116r2k99k2r6113zy411y011
|apgcode      = xp7_y3695q88q596zy18o69aaggaa96o8zxo8bq0vgvppvgv0qb8ozy4mkmkkmkmzxc88c0t4tcct4t0c88czy0gbdgb8b66b8bgdbgzx121e929dwd929e121zy4sc4w4cszy06a8882kssk2888a6zxc88mljl0ii0ljlm88czwokkbag267w762gabkkoz0oo0u3c48qk22kq84c3u0ooz0ckgv0d88agmmga88d0vgkczy065112rpwpr21156z031e80gj411w114jg08e13zx35t0bg37oo73gb0t53z08e1u123cgy0gc321u1e8zwgi3s53ady0da35s3igzwhaqh6p5g8w8g5p6hqahz01226gmll5qeeq5llmg6221zj2akgp1uug9559guu1pgka2jz11da8c0siey0eis0c8ad11zy03116r2k99k2r6113zy411y011
|viewerconfig = #C [[ GPS 3 ZOOM 4 LOOP 7 THUMBSIZE 2 ]]
|viewerconfig = #C [[ THUMBSIZE 2 ZOOM 4 GPS 3 LOOP 7 ]]
}}{{stub}}
}}
'''754P7''' is a very large {{period|7}} [[oscillator]] and high-clearance [[Emulator|heavyweight sparker]]. It was originally found in a dual form by [[wwei23]] on January 17, {{year|2021}}, <ref name="message800459671055892541" /> through an observation of a blank row in JLS leading to the stabilization of the sparker across a gutter. Its stator was slightly reduced to a 1308-cell form by [[BlinkerSpawn]]<ref name="post119411" /> and [[JP21]].<ref name="post119428" /> On March 2, 2021, [[cvojan]] found an alternative stabilization which cut the sparker's population nearly in half.<ref>{{LinkForumThread | format = ref |title = Re: Oscillator Discussion Thread | p = 124294 | author = cvojan |date = March 2, 2021}}</ref>
'''754P7''' is a very large {{period|7}} [[oscillator]] and high-clearance [[Emulator|heavyweight sparker]]. It was originally found in a dual form by [[Aleph]] on January 17, {{year|2021}}, <ref name="message800459671055892541" /> through an observation of a blank row in JLS leading to the stabilization of the sparker across a gutter. Its stator was slightly reduced to a 1308-cell form by [[BlinkerSpawn]]<ref name="post119411" /> and [[James Pascua]].<ref name="post119428" /> On March 2, 2021, [[cvojan]] found an alternative stabilization which cut the sparker's population nearly in half.<ref name="post124294" />


==See also==
== Gallery ==
*[[230P8]]
This oscillator was originally discovered as a dimer, with the stator reduced to 1308P7, shown here.
*[[132P7]], a much smaller domino sparker but also much less accessible.


==References==
{{EmbedViewer
|pname        = 1308p7
|viewerconfig = #C [[ THEME 6 GPS 3 AUTOSTART ZOOM 2.8 WIDTH 600 ]]
|position    = center
|caption      = 1308P7
|style        = width:300px;
|apgcode      = xp7_y0gwonha44ahnowgzwck5d1ejs0110sje1d5kczjhla260uu248842uu062alhjz10ggo3raa8nttn8aar3ogg01z012km2o7934w4397o2mk21zwg9gf8hlcy0clh8fg9gz02j0v0hhc3y03chh0v0j2zw1h8f0l2go66og2l0f8h1z0g0t512j811w118j215t0gz0110o801gn7w7ng108o011zy0o5d54l3qq3l45d5oz6970vgd84maggam48dgv0796zw6aalk2goowoog2klaa6zxc45qaia1ii1aiaq54czy0ok455haeeah554kozy4ec8w8cezy0g0s4g4cwc4g4s0gzx12lc3k5lool5k3cl21zxc45d0f8fccf8f0d54czy4raraararzx64km0u2u66u2u0mk46zxg8l6o5kl33lk5o6l8gzy01074146w6414701zy4e62w26ezy0354kkhaeeahkk453zx64kba9ag99ga9abk46zwcaal58133w33185laaczcis0v1m24da11ad42m1v0siczy03kmk4lobbol4kmk3z0gg0320g1tswst1g0230ggz010nkg8p2ggwgg2p8gkn01zwgh2u0l813cc318l0u2hgz08p0v0hh6oy0o6hh0v0p8zw1i1u2hl6y06lh2u1i1z0g85d83sio4w4ois38d58gzg0113oraa2tnnt2aaro3110gzphla8c0ff842248ff0c8alhpzw65kmgep70gg07pegmk56zy01w3tha44aht3w1
}}
 
It was able to support a previous partial, to create 1950P7.
 
{{EmbedViewer
|pname        = 1950p7
|viewerconfig = #C [[ THEME 6 GPS 3 AUTOSTART ZOOM 2.2 WIDTH 700 ]]
|position    = center
|caption      = 1950P7
|style        = width:300px;
}}
 
However, none of the smaller domino sparkers could support it, so this trimer form was just a curiosity, for now. In March, [[cvojan]] found a way to massively reduce the gutter stabilization, to create 754P7, as shown in the infobox.
 
In November, [[Dongook Lee]] and [[cvojan]] found [[62P7]], which was able to support the earlier partial, hence creating 678P7.
 
{{EmbedViewer
|pname        = 678p7
|viewerconfig = #C [[ THEME 6 GPS 3 AUTOSTART ]]
|position    = center
|caption      = 678P7
|style        = width:300px;
|apgcode      = xp7_x31e8g04aa40g8e13zwco2thhghhhhghht2oczx121y1ggx121zy03p6kkmh77hmkk6p3zy211gctwtcg11zy4gp8w8pgzy0ckggh48oo84hggkczxoggca6a1551a6acggozwg88ml15de11ed51lm88gz0gh1t6o9gk8448kg9o6t1hgz0p90v0qggl1cc1lggq0v09pzw11da224mj11jm422ad11z062sgw6833w3386wgs26zx6aq1n06egge60n1qa6z0gs2s346pw11wp643s2sgzx47oa6kry0rk6ao74zw3lk3cia0gwg0aic3kl3z0254d1cbabksskbabc1d452z64k80j3tt0jaaj0tt3j08k46z32qlhp0p5ty0t5p0phlq23zy0622dn48ii84nd226zy4321w123
}}
 
On May 14, 2024, Aleph found a {{times|77|26}} variant (two cells wider). Aleph, DroneBetter, and [[Matthias Merzenich]] reduced its size to 563 cells in {{times|77|24}}:
{{EmbedViewer
|pname        = 563p7
|viewerconfig = #C [[ THEME 6 GPS 3 AUTOSTART ]]
|position    = center
|caption      = 563P7
|style        = width:300px;
|apgcode      = xp7_wc9bogmp2sgw3pmgob9cz64lb8mg8a5ki6p5a8gm8bl46zw12pmgj1u1cd1u1jgmp21z0oggmaa9m11dd11m9aamggoz08kialllhe4w4ehlllaik8zcc0v4011n4y04n1104v0cczxdlk2e0cswsc0e2kldzwo4o78diw33wid87o4oz01pgfgkc9my0m9ckgfgp1zxc87o4l1y01l4o78cz04a9r2onkm9oo9mkno2r9a4zc88g066qq07ll70qq660g88cz64la2j0jbq1w1qbj0j2al46zw11d54re9g44g9er45d11zy474211247
}}
 
On June 24, 2024, Aleph found an {{times|88|26}} variant with both the optimal clearance and lowest known minimum population of 522 (there are lower-population variants with worse clearance).<ref name="post188386" />
{{EmbedViewer
|rle          = x = 88, y = 26, rule = B3/S23
26bob2o$14b2o2b2o6b2obo18b2o$14bo3bo3b2o25bo5bo$11b2obobobo4bo2b3o17b3o5bobo$11bobobobo5bobo2bo7bo9bo7b2o13bobo$8b2obo3bo6b2ob2o8bobo6b2o6b2o6b2ob2o3bob2o2b2o4b2o$7bobob2o2b2o3bo4bo6bobo2bo5b6o2bo2b2o3bob2obo3bo3b3o6bo$9bo9b2ob2o2bo3bo10b2obob4o2bo3bo2bo4bob2ob2o5bob3o$8bob3o7bobob2ob2o3b2o3bo3b2o3bo2b3ob2o2bob5obobobob6obo7b2o$6bobo2bo2b5obobo5bo4bo4bob2obo3bo5bob2obo6bobobo16bo$bob3obo4bo6bo2b3ob2o5b4ob2obob2o2b5obo4bob3o2b2ob2obob4o3bo3bobo$5b3o4bo4bob2o3bo3b3ob2o2b2o2bobo5bob2o2b2o2b3o2bobobobo11bob3o$o7b2o5bobobo2bo5bo2bo7bo19bobo3bo5bo9b3o$o7b2o5bobobo2bo5bo2bo7bo19bobo3bo5bo9b3o$5b3o4bo4bob2o3bo3b3ob2o2b2o2bobo5bob2o2b2o2b3o2bobobobo11bob3o$bob3obo4bo6bo2b3ob2o5b4ob2obob2o2b5obo4bob3o2b2ob2obob4o3bo3bobo$6bobo2bo2b5obobo5bo4bo4bob2obo3bo5bob2obo6bobobo16bo$8bob3o7bobob2ob2o3b2o3bo3b2o3bo2b3ob2o2bob5obobobob6obo7b2o$9bo9b2ob2o2bo3bo10b2obob4o2bo3bo2bo4bob2ob2o5bob3o$7bobob2o2b2o3bo4bo6bobo2bo5b6o2bo2b2o3bob2obo3bo3b3o6bo$8b2obo3bo6b2ob2o8bobo6b2o6b2o6b2ob2o3bob2o2b2o4b2o$11bobobobo5bobo2bo7bo9bo7b2o13bobo$11b2obobobo4bo2b3o17b3o5bobo$14bo3bo3b2o25bo5bo$14b2o2b2o6b2obo18b2o$26bob2o!
|viewerconfig = #C [[ THEME 6 GPS 3 AUTOSTART ZOOM 6 ]]
|position    = center
|caption      = 522P7
|style        = width:300px;
|apgcode      = xp7_y1gwe7huuuuh7ewgzxck5d1cgu8w8ugc1d5kcz0jhla2603gikcckig3062alhjz01oggo3oa881hh188ao3oggo1zkc0si6a030f2442f030a6is0ckz11y1st1efwfe1tsy111zy04a4w7h6w6h7w4a4zy2o0gg5u88u5gg0oz0g0s4w2co2pwp2oc2w4s0gz011wo49mkkswskkm94ow11zw2530349mk8w8km9430352zy1md1vgc3cc3cgv1dmzy1hhda22j33j22adhhzy056o3t5hj77jh5t3o65zy131kn873w378nk13zy1643x6336x346zy4c453w354c
}}
 
== See also ==
* [[164P8]]
* [[132P7]], a much smaller domino sparker but also much less accessible.
* [[Hebdarole]]
* [[Period-7 sparkers]]
 
== References ==
<references>
<references>
<ref name="message800459671055892541">{{CiteDiscord
<ref name="message800459671055892541">{{CiteDiscord
|author  = wwei23
|author  = Aleph
|date    = January 17, 2021
|date    = January 17, 2021
|channel = cgol
|channel = cgol
Line 39: Line 97:
<ref name="post119411">{{LinkForumThread
<ref name="post119411">{{LinkForumThread
|format = ref
|format = ref
|p      = 119411
|title  = Re: Oscillator Discussion Thread
|title  = Re: Oscillator Discussion Thread
|p      = 119411
|author = BlinkerSpawn
|author = BlinkerSpawn
|date  = January 17, 2021
|date  = January 17, 2021
Line 46: Line 104:
<ref name="post119428">{{LinkForumThread
<ref name="post119428">{{LinkForumThread
|format = ref
|format = ref
|p      = 119428
|title  = Re: Oscillator Discussion Thread
|title  = Re: Oscillator Discussion Thread
|p      = 119428
|author = James Pascua
|author = JP21
|date  = January 17, 2021
|date  = January 17, 2021
}}</ref>
<ref name="post188386">{{LinkForumThread
|format  = ref
|p      = 188386
|title  = Re: Oscillator Discussion Thread
|author  = Aleph
|date    = June 24, 2024
}}</ref>
<ref name="post124294">{{LinkForumThread
|format = ref
|p      = 124294
|title  = Re: Oscillator Discussion Thread
|author = cvojan
|date  = March 2, 2021
}}</ref>
}}</ref>
</references>
</references>


==External links==
== External links ==
{{LinkCatagolue|xp7_y3695q88q596zy18o69aaggaa96o8zxo8bq0vgvppvgv0qb8ozy4mkmkkmkmzxc88c0t4tcct4t0c88czy0gbdgb8b66b8bgdbgzx121e929dwd929e121zy4sc4w4cszy06a8882kssk2888a6zxc88mljl0ii0ljlm88czwokkbag267w762gabkkoz0oo0u3c48qk22kq84c3u0ooz0ckgv0d88agmmga88d0vgkczy065112rpwpr21156z031e80gj411w114jg08e13zx35t0bg37oo73gb0t53z08e1u123cgy0gc321u1e8zwgi3s53ady0da35s3igzwhaqh6p5g8w8g5p6hqahz01226gmll5qeeq5llmg6221zj2akgp1uug9559guu1pgka2jz11da8c0siey0eis0c8ad11zy03116r2k99k2r6113zy411y011}}
* {{LinkCatagolue|xp7_y3695q88q596zy18o69aaggaa96o8zxo8bq0vgvppvgv0qb8ozy4mkmkkmkmzxc88c0t4tcct4t0c88czy0gbdgb8b66b8bgdbgzx121e929dwd929e121zy4sc4w4cszy06a8882kssk2888a6zxc88mljl0ii0ljlm88czwokkbag267w762gabkkoz0oo0u3c48qk22kq84c3u0ooz0ckgv0d88agmmga88d0vgkczy065112rpwpr21156z031e80gj411w114jg08e13zx35t0bg37oo73gb0t53z08e1u123cgy0gc321u1e8zwgi3s53ady0da35s3igzwhaqh6p5g8w8g5p6hqahz01226gmll5qeeq5llmg6221zj2akgp1uug9559guu1pgka2jz11da8c0siey0eis0c8ad11zy03116r2k99k2r6113zy411y011}}


{{Sparker|p=7|type=domino|strength=strong}}
{{Sparker|p=7|type=domino|strength=strong}}
{{Symmetry|orthogonal2}}
[[Category:Unnamed periodic objects]]
[[Category:Unnamed periodic objects]]
[[Category:Patterns discovered by pseudonymous users]]
[[Category:Patterns discovered by pseudonymous users]]
__NOTOC__
__NOTOC__

Latest revision as of 12:41, 19 July 2026

754P7
x = 120, y = 24, rule = B3/S23 14b2o2b2o$14bo3bo5bo11bo11b2o6b2o2b2o$11b2obobobo4bobo3b2o5b3o10bo5bo bo2b2o3b2o$11bobobobo5bo2bobobo2bo5bo3b2ob3o6bo9bobo3b2o16bo6b2o7b2o$ 8b2obo3bo6b2ob2obo4b6o3bobobo5b2ob9obobo3bo5b2o9bobo5bo9bo$7bobob2o2b 2o3bo4bo3b4o6b4obo7bobo8b2obob2obo4bobo10bobob2obo9bob2obo$9bo9b2ob2o 3b2o3bob5o4bobo8bob2o2b2o4bobobob2o2bo9b3o2b2obob2o7b2obob2o$8bob3o7b obob3o2b2o3b3obo2bob2obob2o2bobobo2b3o4bo3bo3bobo4bobobo3b2o8bo3bo8b2o 3b2o$6bobo2bo2b5obobobo2bo12bobo6bo4bobob3o2b2o3bobo2bo2bobobo7bo2bob 5obo3bob5obo2bobo2bo$bob3obo4bo6bo2b2o2b2obob2ob2o2bob2ob2obo2b2o5b3o 8b4obobob2o3bo4bo2bob2o4bo2bobo2bo4b2obo3bobo$5b3o4bo4bob2o2bo2b2obob 2ob2o3b2o2bo6bobob2o4bobo8b2o2bobo4b2o2b2obo3b4o2b2ob2o2b4o3bob2obo$o 7b2o5bobobo2bo5b4o3b2o3bo14bob2ob3o3bo4b2o3bo12b2o2bo2bo3bobo3bo2bo2b 2o2bo$o7b2o5bobobo2bo5b4o3b2o3bo14bob2ob3o3bo4b2o3bo12b2o2bo2bo3bobo3b o2bo2b2o2bo$5b3o4bo4bob2o2bo2b2obob2ob2o3b2o2bo6bobob2o4bobo8b2o2bobo 4b2o2b2obo3b4o2b2ob2o2b4o3bob2obo$bob3obo4bo6bo2b2o2b2obob2ob2o2bob2o b2obo2b2o5b3o8b4obobob2o3bo4bo2bob2o4bo2bobo2bo4b2obo3bobo$6bobo2bo2b 5obobobo2bo12bobo6bo4bobob3o2b2o3bobo2bo2bobobo7bo2bob5obo3bob5obo2bo bo2bo$8bob3o7bobob3o2b2o3b3obo2bob2obob2o2bobobo2b3o4bo3bo3bobo4bobob o3b2o8bo3bo8b2o3b2o$9bo9b2ob2o3b2o3bob5o4bobo8bob2o2b2o4bobobob2o2bo9b 3o2b2obob2o7b2obob2o$7bobob2o2b2o3bo4bo3b4o6b4obo7bobo8b2obob2obo4bob o10bobob2obo9bob2obo$8b2obo3bo6b2ob2obo4b6o3bobobo5b2ob9obobo3bo5b2o9b obo5bo9bo$11bobobobo5bo2bobobo2bo5bo3b2ob3o6bo9bobo3b2o16bo6b2o7b2o$11b 2obobobo4bobo3b2o5b3o10bo5bobo2b2o3b2o$14bo3bo5bo11bo11b2o6b2o2b2o$14b 2o2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 2 ZOOM 4 GPS 3 LOOP 7 ]]
View static image
Pattern type Oscillator
Number of cells 754
Bounding box 120 × 24
Period 7 (mod: 7)
Heat 327.4
Volatility 0.69 | 0.69
Kinetic symmetry -e
Discovered by Aleph
cvojan
Year of discovery 2021

754P7 is a very large period-7 oscillator and high-clearance heavyweight sparker. It was originally found in a dual form by Aleph on January 17, 2021, [1] through an observation of a blank row in JLS leading to the stabilization of the sparker across a gutter. Its stator was slightly reduced to a 1308-cell form by BlinkerSpawn[2] and James Pascua.[3] On March 2, 2021, cvojan found an alternative stabilization which cut the sparker's population nearly in half.[4]

This oscillator was originally discovered as a dimer, with the stator reduced to 1308P7, shown here.

x = 195, y = 24, rule = B3/S23 10b2o2b2o40b2o79b2o40b2o2b2o$10bo3bo5bo10bo12b2o9bo2bo77bo2bo9b2o12bo 10bo5bo3bo$7b2obobobo4bobo7b3o2b2o9bo9b3o3b2o69b2o3b3o9bo9b2o2b3o7bobo 4bobobob2o$7bobobobo5bo2bob2o2bo6bo3b2ob3o16bobo3b2o16bo6b2o7b2o6bo16b 2o3bobo16b3ob2o3bo6bo2b2obo2bo5bobobobo$4b2obo3bo6b2ob2obo4b6o3bobobo 5b2o3b7obobo3bo5b2o9bobo5bo9bo5bobo9b2o5bo3bobob7o3b2o5bobobo3b6o4bob 2ob2o6bo3bob2o$5bob2o2b2o2b2o4bo3b4o6b4obo7bobobo6b2obob2obo4bobo10bob ob2obo9bob2obobo10bobo4bob2obob2o6bobobo7bob4o6b4o3bo4b2o2b2o2b2obo$5b o9b2ob2o3b2o3bobo3bo6bo8bob2obob2o3bobobob2o2bo9b3o2b2obob2o7b2obob2o 2b3o9bo2b2obobobo3b2obob2obo8bo6bo3bobo3b2o3b2ob2o9bo$3b2ob3o2b4obobob 3o2bo3b2o3b2obob3o2b2o4bobo5bo2bo4bobobobo9bo2b2o21b2o2bo9bobobobo4bo 2bo5bobo4b2o2b3obob2o3b2o3bo2b3obobob4o2b3ob2o$3ob3o2bob4obobobo2bobob obo2b2o2bo6bo5bo2bo4bo6bobo2b2obo3b3o5bo2bob5ob2ob2ob5obo2bo5b3o3bob2o 2bobo6bo4bo2bo5bo6bo2b2o2bobobobo2bobobob4obo2b3ob3o$o3bo2b3obo6bob2o 5b2ob2o7b2o4b3ob2obobob2obo3b2obobobo3bo2b2o3bo2bobo5bo2bobo2bo5bobo2b o3b2o2bo3bobobob2o3bob2obobob2ob3o4b2o7b2ob2o5b2obo6bob3o2bo3bo$bobo8b o2b3obo2bo15b3o4b3o2b2o4bobo4b3o5bobo4bo3b2obobob5ob2ob2ob5obobob2o3bo 4bobo5b3o4bobo4b2o2b3o4b3o15bo2bob3o2bo8bobo$2bo2bo7bobob3o16b2o13bob 2o4bo6bo2bob3o14b2o2b2o2bobo2b2o2b2o14b3obo2bo6bo4b2obo13b2o16b3obobo 7bo2bo$2bo2bo7bobob3o16b2o13bob2o4bo6bo2bob3o14b2o2b2o2bobo2b2o2b2o14b 3obo2bo6bo4b2obo13b2o16b3obobo7bo2bo$bobo8bo2b3obo2bo15b3o4b3o2b2o4bob o4b3o5bobo4bo3b2obobob5ob2ob2ob5obobob2o3bo4bobo5b3o4bobo4b2o2b3o4b3o 15bo2bob3o2bo8bobo$o3bo2b3obo6bob2o5b2ob2o7b2o4b3ob2obobob2obo3b2obobo bo3bo2b2o3bo2bobo5bo2bobo2bo5bobo2bo3b2o2bo3bobobob2o3bob2obobob2ob3o 4b2o7b2ob2o5b2obo6bob3o2bo3bo$3ob3o2bob4obobobo2bobobobo2b2o2bo6bo5bo 2bo4bo6bobo2b2obo3b3o5bo2bob5ob2ob2ob5obo2bo5b3o3bob2o2bobo6bo4bo2bo5b o6bo2b2o2bobobobo2bobobob4obo2b3ob3o$3b2ob3o2b4obobob3o2bo3b2o3b2obob 3o2b2o4bobo5bo2bo4bobobobo9bo2b2o21b2o2bo9bobobobo4bo2bo5bobo4b2o2b3ob ob2o3b2o3bo2b3obobob4o2b3ob2o$5bo9b2ob2o3b2o3bobo3bo6bo8bob2obob2o3bob obob2o2bo9b3o2b2obob2o7b2obob2o2b3o9bo2b2obobobo3b2obob2obo8bo6bo3bobo 3b2o3b2ob2o9bo$5bob2o2b2o2b2o4bo3b4o6b4obo7bobobo6b2obob2obo4bobo10bob ob2obo9bob2obobo10bobo4bob2obob2o6bobobo7bob4o6b4o3bo4b2o2b2o2b2obo$4b 2obo3bo6b2ob2obo4b6o3bobobo5b2o3b7obobo3bo5b2o9bobo5bo9bo5bobo9b2o5bo 3bobob7o3b2o5bobobo3b6o4bob2ob2o6bo3bob2o$7bobobobo5bo2bob2o2bo6bo3b2o b3o16bobo3b2o16bo6b2o7b2o6bo16b2o3bobo16b3ob2o3bo6bo2b2obo2bo5bobobobo $7b2obobobo4bobo7b3o2b2o9bo9b3o3b2o69b2o3b3o9bo9b2o2b3o7bobo4bobobob2o $10bo3bo5bo10bo12b2o9bo2bo77bo2bo9b2o12bo10bo5bo3bo$10b2o2b2o40b2o79b 2o40b2o2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME 6 GPS 3 AUTOSTART ZOOM 2.8 WIDTH 600 ]]
1308P7
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagolue: here

It was able to support a previous partial, to create 1950P7.

x = 298, y = 25, rule = B3/S23 12b2o2b2o$12bo3bo5bo11bo11b2o6b2o2b2o49b2o2b2o163b2o2b2o$9b2obobobo4bo bo3b2o5b3o10bo5bobo2b2o3b2o44bo3bo5bo11bo11b2o6b2o2b2o79b2o2b2o6b2o11b o11bo5bo3bo$9bobobobo5bo2bobobo2bo5bo3b2ob3o6bo9bobo3b2o35b2obobobo4bo bo3b2o5b3o10bo5bobo2b2o3b2o69b2o3b2o2bobo5bo10b3o5b2o3bobo4bobobob2o$ 6b2obobobo5b3ob2obo4b6o3bobobo5b2ob9obobo3bo5b2o15b2o12bobobobo5bo2bob obo2bo5bo3b2ob3o6bo9bobo3b2o16bo6b2o7b2o6bo16b2o3bobo9bo6b3ob2o3bo5bo 2bobobo2bo5bobobobo$5bobobo3b2o3bo4bo3b4o6b4obo7bobo9bobob2obo4bobo12b 2o2bo9b2obo3bo6b2ob2obo4b6o3bobobo5b2ob9obobo3bo5b2o9bobo5bo9bo5bobo9b 2o5bo3bobob9ob2o5bobobo3b6o4bob2ob2o6bo3bob2o$5bo2b2obo8b2o3b2o5bo2bo 5b3o8bob2o2b3o3bobobob2o2bo13bo2b2o9bobob2o2b2o3bo4bo3b4o6b4obo7bobo8b 2obob2obo4bobo10bobob2obo9bob2obobo10bobo4bob2obob2o8bobo7bob4o6b4o3bo 4bo3b2o2b2obobo$3bobo4bo6b2obob3o2b7o3b2obo4bobo3b2obo3bo4b2obo3bobobo bo2bo4bo4bobo12bo9b2ob2o3b2o3bob5o4bobo8bob2o2b2o4bobobob2o2bo9b3o2b2o bob2o7b2obob2o2b3o9bo2b2obobobo4b2o2b2obo8bobo4b5obo3b2o3b2ob2o9bo$bo 4bo9bobobo4bobo2b3o2bo4b3obo2bo6bo7bobo3b2o2bob3o2b2o3bo2bobobo11bob3o 7bobob3o2b2o3b3obo2bob2obob2o2bobobo2b3o4bo3bo3bobo4bobobo3b2o8bo3bo8b 2o3bobobo4bobo3bo3bo4b3o2bobobo2b2obob2obo2bob3o3b2o2b3obobo7b3obo$o3b o6bo2bobob3ob2ob4o5b2o3b2obobo3b3obob3obo3bo2bob2o12b3o3bobob2o8bobo2b o2b5obobobo2bo12bobo6bo4bobob3o2b2o3bobo2bo2bobobo7bo2bob5obo3bob5obo 2bo7bobobo2bo2bobo3b2o2b3obobo4bo6bobo12bo2bobobob5o2bo2bobo$o3bobo3b 2ob2o3bo10bobobo3b2o2b2obo4bo5bobo4bo4bo2b4o6bo2bob2o2bo3bo2bob3obo4bo 6bo2b2o2b2obob2ob2o2bob2ob2obo2b2o5b3o8b4obobob2o3bo4bo2bob2o4bo2bobo 2bo4b2obo2bo4bo3b2obobob4o8b3o5b2o2bob2ob2obo2b2ob2obob2o2b2o2bo6bo4bo b3obo$o3bo2bo5bo2bo3b6o3b2ob2o5bo9b2o3bo4bo2bo2bob2obobobo7b2o2bo6bo6b 3o4bo4bob2o2bo2b2obob2ob2o3b2o2bo6bobob2o4bobo8b2o2bobo4b2o2b2obo3b4o 2b2ob2o2b4o3bob2o2b2o4bobo2b2o8bobo4b2obobo6bo2b2o3b2ob2obob2o2bo2b2ob o4bo4b3o$o3bo2bo5bo2bo3b6o3b2ob2o5bo9b2o3bo4bo2bo2bob2obobobo7b2o2bo6b obo7b2o5bobobo2bo5b4o3b2o3bo14bob2ob3o3bo4b2o3bo12b2o2bo2bo3bobo3bo2bo 2b2o12bo3b2o4bo3b3ob2obo14bo3b2o3b4o5bo2bobobo5b2o7bo$o3bobo3b2ob2o3bo 10bobobo3b2o2b2obo4bo5bobo4bo4bo2b4o6bo2bob2o2bo3bobo7b2o5bobobo2bo5b 4o3b2o3bo14bob2ob3o3bo4b2o3bo12b2o2bo2bo3bobo3bo2bo2b2o12bo3b2o4bo3b3o b2obo14bo3b2o3b4o5bo2bobobo5b2o7bo$o3bo6bo2bobob3ob2ob4o5b2o3b2obobo3b 3obob3obo3bo2bob2o12b3o3bobob2o7b3o4bo4bob2o2bo2b2obob2ob2o3b2o2bo6bob ob2o4bobo8b2o2bobo4b2o2b2obo3b4o2b2ob2o2b4o3bob2o2b2o4bobo2b2o8bobo4b 2obobo6bo2b2o3b2ob2obob2o2bo2b2obo4bo4b3o$bo4bo9bobobo4bobo2b3o2bo4b3o bo2bo6bo7bobo3b2o2bob3o2b2o3bo2bobobo4bob3obo4bo6bo2b2o2b2obob2ob2o2bo b2ob2obo2b2o5b3o8b4obobob2o3bo4bo2bob2o4bo2bobo2bo4b2obo2bo4bo3b2obobo b4o8b3o5b2o2bob2ob2obo2b2ob2obob2o2b2o2bo6bo4bob3obo$3bobo4bo6b2obob3o 2b7o3b2obo4bobo3b2obo3bo4b2obo3bobobobo2bo4bo4bobo9bobo2bo2b5obobobo2b o12bobo6bo4bobob3o2b2o3bobo2bo2bobobo7bo2bob5obo3bob5obo2bo7bobobo2bo 2bobo3b2o2b3obobo4bo6bobo12bo2bobobob5o2bo2bobo$5bo2b2obo8b2o3b2o5bo2b o5b3o8bob2o2b3o3bobobob2o2bo13bo2b2o10bob3o7bobob3o2b2o3b3obo2bob2obob 2o2bobobo2b3o4bo3bo3bobo4bobobo3b2o8bo3bo8b2o3bobobo4bobo3bo3bo4b3o2bo bobo2b2obob2obo2bob3o3b2o2b3obobo7b3obo$5bobobo3b2o3bo4bo3b4o6b4obo7bo bo9bobob2obo4bobo12b2o2bo10bo9b2ob2o3b2o3bob5o4bobo8bob2o2b2o4bobobob 2o2bo9b3o2b2obob2o7b2obob2o2b3o9bo2b2obobobo4b2o2b2obo8bobo4b5obo3b2o 3b2ob2o9bo$6b2obobobo5b3ob2obo4b6o3bobobo5b2ob9obobo3bo5b2o15b2o8bobob 2o2b2o3bo4bo3b4o6b4obo7bobo8b2obob2obo4bobo10bobob2obo9bob2obobo10bobo 4bob2obob2o8bobo7bob4o6b4o3bo4bo3b2o2b2obobo$9bobobobo5bo2bobobo2bo5bo 3b2ob3o6bo9bobo3b2o32b2obo3bo6b2ob2obo4b6o3bobobo5b2ob9obobo3bo5b2o9bo bo5bo9bo5bobo9b2o5bo3bobob9ob2o5bobobo3b6o4bob2ob2o6bo3bob2o$9b2obobob o4bobo3b2o5b3o10bo5bobo2b2o3b2o41bobobobo5bo2bobobo2bo5bo3b2ob3o6bo9bo bo3b2o16bo6b2o7b2o6bo16b2o3bobo9bo6b3ob2o3bo5bo2bobobo2bo5bobobobo$12b o3bo5bo11bo11b2o6b2o2b2o46b2obobobo4bobo3b2o5b3o10bo5bobo2b2o3b2o69b2o 3b2o2bobo5bo10b3o5b2o3bobo4bobobob2o$12b2o2b2o91bo3bo5bo11bo11b2o6b2o 2b2o79b2o2b2o6b2o11bo11bo5bo3bo$109b2o2b2o163b2o2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME 6 GPS 3 AUTOSTART ZOOM 2.2 WIDTH 700 ]]
1950P7
(click above to open LifeViewer)
RLE: here Plaintext: here

However, none of the smaller domino sparkers could support it, so this trimer form was just a curiosity, for now. In March, cvojan found a way to massively reduce the gutter stabilization, to create 754P7, as shown in the infobox.

In November, Dongook Lee and cvojan found 62P7, which was able to support the earlier partial, hence creating 678P7.

x = 111, y = 24, rule = B3/S23 14b2o2b2o$14bo3bo5bo11bo11b2o6b2o2b2o$11b2obobobo4bobo3b2o5b3o10bo5bob o2b2o3b2o35b2o$11bobobobo5bo2bobobo2bo5bo3b2ob3o6bo9bobo3b2o27b3o6b2o$ 8b2obo3bo6b2ob2obo4b6o3bobobo5b2ob9obobo3bo5b2o15b2o3bo4bo5bo$7bobob2o 2b2o3bo4bo3b4o6b4obo7bobo8b2obob2obo4bobo12b2o2bo4bob2obob3o$9bo9b2ob 2o3b2o3bob5o4bobo8bob2o2b2o4bobobob2o2bo13bo2b2o6bobobobo$8bob3o7bobob 3o2b2o3b3obo2bob2obob2o2bobobo2b3o4bo3bo3bobo4bo8b2obo8b2ob2o$6bobo2bo 2b5obobobo2bo12bobo6bo4bobob3o2b2o3bobo2bo2bobobo5bo4bobo8b3o$bob3obo 4bo6bo2b2o2b2obob2ob2o2bob2ob2obo2b2o5b3o8b4obobob2o3bo3bobobobob2o7b 3o3bo$5b3o4bo4bob2o2bo2b2obob2ob2o3b2o2bo6bobob2o4bobo8b2o2bobo4b2o2b 2o3b2o2bo6b3o2bobo$o7b2o5bobobo2bo5b4o3b2o3bo14bob2ob3o3bo4b2o3bo16bo 2bo5b3o2bobo$o7b2o5bobobo2bo5b4o3b2o3bo14bob2ob3o3bo4b2o3bo16bo2bo5b3o 3bo$5b3o4bo4bob2o2bo2b2obob2ob2o3b2o2bo6bobob2o4bobo8b2o2bobo4b2o2b2o 3b2o2bo6b3o$bob3obo4bo6bo2b2o2b2obob2ob2o2bob2ob2obo2b2o5b3o8b4obobob 2o3bo3bobobobob2o7b2ob2o$6bobo2bo2b5obobobo2bo12bobo6bo4bobob3o2b2o3bo bo2bo2bobobo5bo4bobo7bobobobo$8bob3o7bobob3o2b2o3b3obo2bob2obob2o2bobo bo2b3o4bo3bo3bobo4bo8b2obo6bob2obob3o$9bo9b2ob2o3b2o3bob5o4bobo8bob2o 2b2o4bobobob2o2bo13bo2b2o4bo4bo5bo$7bobob2o2b2o3bo4bo3b4o6b4obo7bobo8b 2obob2obo4bobo12b2o2bo4b3o6b2o$8b2obo3bo6b2ob2obo4b6o3bobobo5b2ob9obob o3bo5b2o15b2o6b2o$11bobobobo5bo2bobobo2bo5bo3b2ob3o6bo9bobo3b2o$11b2ob obobo4bobo3b2o5b3o10bo5bobo2b2o3b2o$14bo3bo5bo11bo11b2o6b2o2b2o$14b2o 2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME 6 GPS 3 AUTOSTART ]]
678P7
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagolue: here

On May 14, 2024, Aleph found a 77 × 26 variant (two cells wider). Aleph, DroneBetter, and Matthias Merzenich reduced its size to 563 cells in 77 × 24:

x = 77, y = 24, rule = B3/S23 14b2o2b2o28b2o19b2o$14bo3bo5bo11bo11b2o3bo3b2o10bo$11b2obobobo4bobo6b 2o2b3o13bobo2bo8b2obobob2o$11bobobobo5bo2bob2o2bo6bo3b2ob7o2bobo7bo2bo b2obo2bo$8b2obo3bo6b2ob2obo4b6o3bobobo2bo3bobobob2ob2o2bobo3bo2b2o$7bo bob2o2b2o3bo4bo3b4o6b4obo7bobobobobobob2obob4o$9bo9b2ob2o3b2o3bob5o4bo bo6bobobobobobo4bo4bo$8bob3o7bobob3o2b2o3b3obo2bob2obo4bo2bobobo2bobob 2obobobob2o$6bobo2bo2b5obobobo2bo12bobo5bobobobobo2b2o5bobobob2o2bo$bo b3obo4bo6bo2b2o2b2obob2ob2o2bob2ob2obo2bo3b3o5b5o3bobo3bo$5b3o4bo4bob 2o2bo2b2obob2ob2o3b2o2bo17bo4b2obo2b3o$o7b2o5bobobo2bo5b4o3b2o3bo17b2o bob2o2bo2bobo$o7b2o5bobobo2bo5b4o3b2o3bo17b2obob2obo2b2o$5b3o4bo4bob2o 2bo2b2obob2ob2o3b2o2bo17bo4b3o2bo$bob3obo4bo6bo2b2o2b2obob2ob2o2bob2ob 2obo2bo3b3o5b5o3bobo3b2o$6bobo2bo2b5obobobo2bo12bobo5bobobobobo2b2o5bo bobob2o2bo$8bob3o7bobob3o2b2o3b3obo2bob2obo4bo2bobobo2bobob2obobobob2o $9bo9b2ob2o3b2o3bob5o4bobo6bobobobobobo4bo4bo$7bobob2o2b2o3bo4bo3b4o6b 4obo7bobobobobobob2obob4o$8b2obo3bo6b2ob2obo4b6o3bobobo2bo3bobobob2ob 2o2bobo3bo2b2o$11bobobobo5bo2bob2o2bo6bo3b2ob7o2bobo7bo2bob2obo2bo$11b 2obobobo4bobo6b2o2b3o13bobo2bo8b2obobob2o$14bo3bo5bo11bo11b2o3bo3b2o 10bo$14b2o2b2o28b2o19b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME 6 GPS 3 AUTOSTART ]]
563P7
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagolue: here

On June 24, 2024, Aleph found an 88 × 26 variant with both the optimal clearance and lowest known minimum population of 522 (there are lower-population variants with worse clearance).[5]

x = 88, y = 26, rule = B3/S23 26bob2o$14b2o2b2o6b2obo18b2o$14bo3bo3b2o25bo5bo$11b2obobobo4bo2b3o17b3o5bobo$11bobobobo5bobo2bo7bo9bo7b2o13bobo$8b2obo3bo6b2ob2o8bobo6b2o6b2o6b2ob2o3bob2o2b2o4b2o$7bobob2o2b2o3bo4bo6bobo2bo5b6o2bo2b2o3bob2obo3bo3b3o6bo$9bo9b2ob2o2bo3bo10b2obob4o2bo3bo2bo4bob2ob2o5bob3o$8bob3o7bobob2ob2o3b2o3bo3b2o3bo2b3ob2o2bob5obobobob6obo7b2o$6bobo2bo2b5obobo5bo4bo4bob2obo3bo5bob2obo6bobobo16bo$bob3obo4bo6bo2b3ob2o5b4ob2obob2o2b5obo4bob3o2b2ob2obob4o3bo3bobo$5b3o4bo4bob2o3bo3b3ob2o2b2o2bobo5bob2o2b2o2b3o2bobobobo11bob3o$o7b2o5bobobo2bo5bo2bo7bo19bobo3bo5bo9b3o$o7b2o5bobobo2bo5bo2bo7bo19bobo3bo5bo9b3o$5b3o4bo4bob2o3bo3b3ob2o2b2o2bobo5bob2o2b2o2b3o2bobobobo11bob3o$bob3obo4bo6bo2b3ob2o5b4ob2obob2o2b5obo4bob3o2b2ob2obob4o3bo3bobo$6bobo2bo2b5obobo5bo4bo4bob2obo3bo5bob2obo6bobobo16bo$8bob3o7bobob2ob2o3b2o3bo3b2o3bo2b3ob2o2bob5obobobob6obo7b2o$9bo9b2ob2o2bo3bo10b2obob4o2bo3bo2bo4bob2ob2o5bob3o$7bobob2o2b2o3bo4bo6bobo2bo5b6o2bo2b2o3bob2obo3bo3b3o6bo$8b2obo3bo6b2ob2o8bobo6b2o6b2o6b2ob2o3bob2o2b2o4b2o$11bobobobo5bobo2bo7bo9bo7b2o13bobo$11b2obobobo4bo2b3o17b3o5bobo$14bo3bo3b2o25bo5bo$14b2o2b2o6b2obo18b2o$26bob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME 6 GPS 3 AUTOSTART ZOOM 6 ]]
522P7
(click above to open LifeViewer)
Catagolue: here

See also

References

  1. ↑ Aleph (January 17, 2021). Message in #cgol on the Conwaylife Lounge Discord server
  2. ↑ BlinkerSpawn (January 17, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  3. ↑ James Pascua (January 17, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  4. ↑ cvojan (March 2, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  5. ↑ Aleph (June 24, 2024). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
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