I tried to complete a c/4 diagonal wickstretcher, and found what I thought was a breakthrough, but I just can't make it work. Can anyone help finish it?
x = 72, y = 81, rule = B3/S23
39bo$38boo$38bobo$$41boo$41boo$32b3o$32bo3booboo$35bob3obo$32bo3b3obbo
$27boo4bobo$26boo6bo29bo$28bo$30bo3boo ...
Search found 36 matches
- January 8th, 2013, 7:01 pm
- Forum: Patterns
- Topic: Wickstretcher partial result
- Replies: 1
- Views: 3998
- September 10th, 2012, 7:35 pm
- Forum: Scripts
- Topic: WinLifeSearch update
- Replies: 2
- Views: 4454
WinLifeSearch update
I've been working on cleaning up my old WinLifeSearch program a bit, and have made a new release of it, v0.70.
Main site
Development
It has a lot of minor fixes, but no major changes, and no changes to the search algorithms.
I haven't decided to what extent I'll keep working on this. I'm ...
Main site
Development
It has a lot of minor fixes, but no major changes, and no changes to the search algorithms.
I haven't decided to what extent I'll keep working on this. I'm ...
- September 8th, 2012, 7:08 pm
- Forum: Scripts
- Topic: Spaceships that are built from common reactions
- Replies: 3
- Views: 5515
Re: Spaceships that are built from common reactions
I don't know about a database of reactions that could be combined. It sounds good at first, but without some new idea, there are just too few useful reactions available, and too many miracles that would have to occur.
I think that searching for a new or overlooked reaction is probably a better bet ...
I think that searching for a new or overlooked reaction is probably a better bet ...
- August 20th, 2012, 8:47 am
- Forum: Patterns
- Topic: Statorless p3 oscillator
- Replies: 4
- Views: 6658
Re: Statorless p3 oscillator
No, the only such periods known to me are 1, 2, 3, 6, 8, 13, 15, 30, 33, and 177.Sokwe wrote:Are there any known p4 oscillators in which every cell oscillates at period-4?
- August 19th, 2012, 8:10 pm
- Forum: Patterns
- Topic: Statorless p3 oscillator
- Replies: 4
- Views: 6658
Statorless p3 oscillator
I found this p3 oscillator that has no stable cells. I think it's the first one known.
x = 31, y = 28, rule = B3/S23
9bobo5bo3bo5bobo$8bo3bo4bo3bo4bo3bo$9bo7bo3bo7bo$11b2ob2obo3bob2ob2o$
17bo3bo$10bo3bo9bo3bo$8bobo17bobo2$8bo19bo$7b2o18b2o$7bo19bo$5bo2bo16b
o2bo$o4bo14bo4bo$4ob2ob3o9b4ob2ob3o ...
x = 31, y = 28, rule = B3/S23
9bobo5bo3bo5bobo$8bo3bo4bo3bo4bo3bo$9bo7bo3bo7bo$11b2ob2obo3bob2ob2o$
17bo3bo$10bo3bo9bo3bo$8bobo17bobo2$8bo19bo$7b2o18b2o$7bo19bo$5bo2bo16b
o2bo$o4bo14bo4bo$4ob2ob3o9b4ob2ob3o ...
- June 7th, 2012, 8:29 pm
- Forum: Scripts
- Topic: script for puffer producing given output
- Replies: 4
- Views: 6080
Re: script for puffer producing given output
Does the puffer move left, or right?
I don't know of any scripts that would help, but it looks straightforward to construct. I'd use rakes plus these reactions, if possible ...
I don't know of any scripts that would help, but it looks straightforward to construct. I'd use rakes plus these reactions, if possible ...
- March 14th, 2012, 9:19 pm
- Forum: Patterns
- Topic: Glider/**SS Reactions
- Replies: 3
- Views: 4955
Re: Glider/**SS Reactions
I just wondered whether I have inadvertently discovered any new mechanisms.
(a) p48 back rake, using a Schick engine
This is larger than known technology; see the c2-extended/c2-0048.lif file in my jslife collection .
But the glider release position (at the side) is good, and maybe it could be ...
(a) p48 back rake, using a Schick engine
This is larger than known technology; see the c2-extended/c2-0048.lif file in my jslife collection .
But the glider release position (at the side) is good, and maybe it could be ...
- February 28th, 2012, 11:26 pm
- Forum: General Discussion
- Topic: The theory behind Primer?
- Replies: 8
- Views: 6995
Re: The theory behind Primer?
Some more details:
The prime number patterns all work by testing odd numbers for odd factors. None of them tests even numbers. Some small numbers, like 2, are handled as special cases (i.e., totally faked).
They work by constructing a row of oscillators (or oscillating components) of ever ...
The prime number patterns all work by testing odd numbers for odd factors. None of them tests even numbers. Some small numbers, like 2, are handled as special cases (i.e., totally faked).
They work by constructing a row of oscillators (or oscillating components) of ever ...
- February 1st, 2012, 8:51 pm
- Forum: Scripts
- Topic: Switch engine puffer search script
- Replies: 6
- Views: 7155
Re: Switch engine puffer search script
To clarify, this is not a way to find completely new puffers. You have to start with a known puffer or near-puffer, and it will try to find different ways that its smoke can stabilize.
- January 29th, 2012, 10:55 pm
- Forum: Scripts
- Topic: Switch engine puffer search script
- Replies: 6
- Views: 7155
Re: Switch engine puffer search script
It's nice, but what might be more useful is a similar search for other rules. It is only feasible to find small puffers, and life has been well searched.
I've used random-perturbation scripts like this to find a number of new stable "orbits" into which a puffer's output can fall. The puffer doesn ...
I've used random-perturbation scripts like this to find a number of new stable "orbits" into which a puffer's output can fall. The puffer doesn ...
- January 29th, 2012, 10:49 pm
- Forum: Scripts
- Topic: Switch engine puffer search script
- Replies: 6
- Views: 7155
Re: Switch engine puffer search script
It ought to take about half an hour to translate the script to Python. Maybe someone will volunteer? I could probably do it, but I'm a lot more comfortable with Perl than Python.Wojowu wrote:Is there a chance for Python version?
- January 29th, 2012, 3:30 pm
- Forum: Scripts
- Topic: Switch engine puffer search script
- Replies: 6
- Views: 7155
Switch engine puffer search script
Here's a Golly script I wrote to search for new switch engine puffers; i.e., anything other than the p288 "block maker" or the p384 "glider producer".
seo-search.zip
This is a long shot at best -- I've mostly given up on it, but I think there's still a chance of success.
It requires Perl ...
seo-search.zip
This is a long shot at best -- I've mostly given up on it, but I think there's still a chance of success.
It requires Perl ...
- October 30th, 2011, 10:23 pm
- Forum: Scripts
- Topic: Developing WLS
- Replies: 4
- Views: 5429
Re: Developing WLS
I think so, too... Does WLS uses the best algorithm, currently?
I'm not aware of any breakthroughs in this type of searching. Of course, there are many ways to optimize it. But fundamentally, it's all just brute force: try all possibilities, and eliminate the ones that lead to a contradiction.
If ...
I'm not aware of any breakthroughs in this type of searching. Of course, there are many ways to optimize it. But fundamentally, it's all just brute force: try all possibilities, and eliminate the ones that lead to a contradiction.
If ...
- July 25th, 2011, 5:51 pm
- Forum: General Discussion
- Topic: Oscillator glide symmetry classes
- Replies: 1
- Views: 2774
Re: Oscillator glide symmetry classes
Here is Hickerson's classification of the symmetries of finite oscillators, from his "stamp collection":
There are 43 types of symmetry that an oscillator can have, taking into
account both the symmetry of a single generation and the change of
orientation (if any) M generations later. There are ...
There are 43 types of symmetry that an oscillator can have, taking into
account both the symmetry of a single generation and the change of
orientation (if any) M generations later. There are ...
- July 11th, 2010, 3:33 pm
- Forum: Patterns
- Topic: How to get two gliders in place for a gun
- Replies: 4
- Views: 3912
Re: How to get two gliders in place for a gun
This is a pathological case where most of the usual glider-insertion methods fail. But there are countless ways to collide gliders and spaceships to produce a glider. Some of them are bound to work, such as
x = 321, y = 146, rule = B3/S23
133bo$133bobo$133boo10$16boo$16bobo$16bo$3o$o116bo$bo115bobo ...
x = 321, y = 146, rule = B3/S23
133bo$133bobo$133boo10$16boo$16bobo$16bo$3o$o116bo$bo115bobo ...
- July 10th, 2010, 4:43 pm
- Forum: Patterns
- Topic: How to get two gliders in place for a gun
- Replies: 4
- Views: 3912
Re: How to get two gliders in place for a gun
There are many ways that a glider can suppress the switch engine smoke, but this might be the only one that lets your sideways glider slip past:
x = 211, y = 177, rule = B3/S23
172boo$171bobo$173bo6$179b3o$181bo$180bo6$140boo$139bobo$141bo5$109b3o
$110bo36b3o$110bobbo35bo$110bobbo34bo$111bobo4 ...
x = 211, y = 177, rule = B3/S23
172boo$171bobo$173bo6$179b3o$181bo$180bo6$140boo$139bobo$141bo5$109b3o
$110bo36b3o$110bobbo35bo$110bobbo34bo$111bobo4 ...
gencols
I put together a Windows build of Paul Callahan's "gencols" program. It can be downloaded at < http://entropymine.com/jason/life/gencols/gencols-js-1.00.zip >.
(Gencols is a search program that enumerates collisions between Life patterns, to find collisions that have certain properties.)
Be warned ...
(Gencols is a search program that enumerates collisions between Life patterns, to find collisions that have certain properties.)
Be warned ...
- May 22nd, 2010, 4:49 pm
- Forum: Patterns
- Topic: Assisted Lightspeed Wicks
- Replies: 5
- Views: 5950
Re: Assisted Lightspeed Wicks
I'm not sure if I'm reading your mind correctly...
x = 58, y = 31, rule = B3/S23
13bo3bo20bo5bo6bobbo$bo3bo7booboo7boo3boo8bobo9booboo$booboo6bobobobo
6boo3boo8bobo7boobobbo$obobobo5bobobobo5bobbobobbo16bo3boboo$obobobo
17bobbobobbo6booboo5bobo3bobo$13bo3bo21booboo7bobbo$bo3bo7booboo7boo3b ...
x = 58, y = 31, rule = B3/S23
13bo3bo20bo5bo6bobbo$bo3bo7booboo7boo3boo8bobo9booboo$booboo6bobobobo
6boo3boo8bobo7boobobbo$obobobo5bobobobo5bobbobobbo16bo3boboo$obobobo
17bobbobobbo6booboo5bobo3bobo$13bo3bo21booboo7bobbo$bo3bo7booboo7boo3b ...
- April 23rd, 2010, 9:05 pm
- Forum: Patterns
- Topic: Agar stabilization discussion
- Replies: 4
- Views: 5083
Re: Agar stabilization discussion
I've attached a zip file with several agars that look like they might be tamable.
Here's a new period 12 oscillator, made from one of the agars:
x = 35, y = 35, rule = B3/S23
10boo8boo$9bobbo7boo$4boo3boobobboo$4bobbobobbobobo$booboboobobbobo$bb
obobbob3obbobo8bo$bobboo3bo7bo6bobo ...
Here's a new period 12 oscillator, made from one of the agars:
x = 35, y = 35, rule = B3/S23
10boo8boo$9bobbo7boo$4boo3boobobboo$4bobbobobbobobo$booboboobobbobo$bb
obobbob3obbobo8bo$bobboo3bo7bo6bobo ...
- April 20th, 2010, 10:37 pm
- Forum: Patterns
- Topic: Glider synthesis discussion
- Replies: 36
- Views: 33686
Re: Glider synthesis discussion
Here's a predecessor of the p32 oscillator that I recently found which looks like it would allow a glider synthesis
Here's a synthesis from 37 gliders.
x = 89, y = 109, rule = B3/S23
10bo67bo$bobo7boo63boo7bobo$bboo6boo65boo6boo$bbo83bo3$12bobo59bobo$
13boo59boo$13bo61bo5$67bo$65boo$66boo3$7bo ...
Here's a synthesis from 37 gliders.
x = 89, y = 109, rule = B3/S23
10bo67bo$bobo7boo63boo7bobo$bboo6boo65boo6boo$bbo83bo3$12bobo59bobo$
13boo59boo$13bo61bo5$67bo$65boo$66boo3$7bo ...
- April 19th, 2010, 10:54 pm
- Forum: Patterns
- Topic: Glider synthesis discussion
- Replies: 36
- Views: 33686
Re: Glider synthesis discussion
Here's one way:knightlife wrote:If there were a different way to "inject" a boat into its proper place with 3 gliders from only two directions instead of three then the glider count could be reduced by at least 2.
Code: Select all
x = 10, y = 9, rule = B3/S23
7bo$7bobo$7boo3$5bo$bbobbobo$obobboo$boo!
- March 28th, 2010, 10:07 pm
- Forum: Other Cellular Automata
- Topic: Ships with speed between c/2 and c
- Replies: 114
- Views: 43388
Re: Ships with speed between c/2 and c
I'll have to guess that the answer to both of your questions is no, unless you count this diagonal spaceship in a B0 rule:
Code: Select all
#C 3c/4 diagonal (David Eppstein, 2002)
x = 6, y = 3, rule = B02357/S2356
b2o$o2b3o$ob4o!
- March 12th, 2010, 10:09 pm
- Forum: Patterns
- Topic: Glider synthesis discussion
- Replies: 36
- Views: 33686
Re: Glider synthesis discussion
Here are some predecessors of some large oscillators that might be synthesizable (p9, p16, and p51):
The p51 can be done by brute force, if nothing else.
x = 77, y = 77, rule = B3/S23
69bo$69bobo$69boo3$bo$bbo$3o12bo27bo$16boo26bo$15boo25b3o17bobo$62boo$
63bo$9bo28bo$10boo27bo$9boo26b3o17bobo ...
The p51 can be done by brute force, if nothing else.
x = 77, y = 77, rule = B3/S23
69bo$69bobo$69boo3$bo$bbo$3o12bo27bo$16boo26bo$15boo25b3o17bobo$62boo$
63bo$9bo28bo$10boo27bo$9boo26b3o17bobo ...
- March 9th, 2010, 8:13 pm
- Forum: Patterns
- Topic: Incomplete search patterns - try to complete
- Replies: 189
- Views: 396802
Re: Incomplete search patterns - try to complete
Can anyone find a custom p6 sparker to complete this p42 oscillator?
x = 44, y = 20, rule = B3/S23
9boo22boo$5boobbobo5boo6boo5bobobboo$4bobbobobo5boo6boo5bobobobbo$4bob
obboboo18boobobbobo$3booboobo8bo13bobb3oboo$6bobbooboo3bobo12boobobbo
bbo$3boboobboo5bo3bo10bo5bobboo$oboobobo6bobo3bo10b4obo5bo ...
x = 44, y = 20, rule = B3/S23
9boo22boo$5boobbobo5boo6boo5bobobboo$4bobbobobo5boo6boo5bobobobbo$4bob
obboboo18boobobbobo$3booboobo8bo13bobb3oboo$6bobbooboo3bobo12boobobbo
bbo$3boboobboo5bo3bo10bo5bobboo$oboobobo6bobo3bo10b4obo5bo ...
- March 9th, 2010, 8:02 pm
- Forum: Patterns
- Topic: Some new spaceships.
- Replies: 34
- Views: 44556
Re: Some new spaceships.
With an alternate p2 part, one of the 3c/6 spaceships can delete blocks. It's pretty bulky, but I think that's a first.
x = 52, y = 78, rule = B3/S23
35b3o$31b5obbo$27booboobobo3bo$25boobo3bo6bo$oo19b5o4bo6bo$oo15booboob
obobo3bo6bobo$15boobo3bo3bo8booboboo$11b5o4bo14boobobobo$10boobobobo3b ...
x = 52, y = 78, rule = B3/S23
35b3o$31b5obbo$27booboobobo3bo$25boobo3bo6bo$oo19b5o4bo6bo$oo15booboob
obobo3bo6bobo$15boobo3bo3bo8booboboo$11b5o4bo14boobobobo$10boobobobo3b ...