## Search found 2403 matches

May 28th, 2021, 8:39 pm
Forum: Scripts
Topic: ikpx 2.2
Replies: 42
Views: 5470

### Re: ikpx 2.2

The program warns with: Instruction set SSE4.2 detected ikpx2 has been compiled for the rule b3s23 (330 prime implicants). Checking SAT solver... ...check complete! sizeof(workitem) = 32 sizeof(iterator) = 8 # Valid velocity: (1,1)c/6 # Jacobian: [(-1, 3), (1, 3), (0, 1)] # lookahead = 26; jumpahea...
May 20th, 2021, 7:24 am
Forum: Patterns
Topic: Execution of Old Guns by Variable-Speed Firing Squad
Replies: 584
Views: 450962

### Re: Execution of Old Guns by Variable-Speed Firing Squad

Armin Biere's kissat was able to find a 46-by-47 solution in 35 minutes of searching: x = 46, y = 47, rule = LifeHistory 27.2A5.2A\$26.A.BABA.A2.A\$26.2A.2BABA.2A\$20.B2.5B2.B2.A.A\$18.2A2B.3B4. 4A.AB\$8.2A8.2A8B3.2B.B3A\$7.B2AB4.13B6.B2AB\$8.3B3.9BA4B7.A.A2B\$6.4B3. 9BABA3B8.AB3A\$5.17BA2BAB10.B.B\$5.18B2AB\$...
May 20th, 2021, 5:45 am
Forum: Patterns
Topic: Execution of Old Guns by Variable-Speed Firing Squad
Replies: 584
Views: 450962

### Re: Execution of Old Guns by Variable-Speed Firing Squad

There may be smaller solutions. Here is slightly larger gun that is one cell thinner and one cell taller: x = 48, y = 47, rule = B3/S23 43bo\$34b2o3b2obobo\$34bobobobobobo\$36bobo3bobob2o\$35b2ob4obobobo\$31b2ob 2o3bobobobo\$30bo4bobobobob2obo\$30bobob2o4bobobobo\$20b2o7b2obo2bobo4bo 3b2o\$6b2o12b2o10bobo2b...
May 20th, 2021, 5:35 am
Forum: Scripts
Topic: ikpx 2.2
Replies: 42
Views: 5470

### Re: ikpx 2.2

LaundryPizza03 wrote:
May 20th, 2021, 4:51 am
I guess my backup is corrupt. And in the latest versiion, I can no longer recompile properly.
Oh right -- apparently, in-place sed behaves strangely on Mac OS X:

https://stackoverflow.com/a/19457213/5130486

I've committed a change that hopefully circumvents this. Try it now?
May 20th, 2021, 4:42 am
Forum: Scripts
Topic: ikpx 2.2
Replies: 42
Views: 5470

### Re: ikpx 2.2

I opened an old savefile from December, and I got cut-off partials: #C depth = 687 #C breadth = 11 #CLL state-numbering golly x = 18, y = 19, rule = B3578/S24678 bo\$3o\$b3o\$o\$2bobo\$2bobobo\$2b2ob4o\$5bob3o\$5bobo\$8b3o\$8b2o\$8bo2b2obo \$11bo2b3o\$8b2ob2obo\$12bo2bobo\$10bo2bobobo\$10bo2bobo\$10b3o2bo\$11b2o! Ha...
May 17th, 2021, 7:15 am
Forum: Patterns
Replies: 285
Views: 110257

This new gun is related to the current p20, p40 and p80 guns, but the new mechanism is a bit wider than the existing best mechanism so it doesn't actually set any records. The existing best mechanism is actually this reduction by Scorbie: https://www.conwaylife.com/forums/viewtopic.php?p=85709#p85709
May 13th, 2021, 11:54 am
Forum: Patterns
Topic: The Hunting of the Elementary Conduits
Replies: 521
Views: 292104

### Re: The Hunting of the Elementary Conduits

dvgrn wrote:
May 13th, 2021, 11:01 am
(I repaired a minor problem with calcyman's pattern just now, in case anyone is wondering.)
Wait, what? You've reintroduced the eater that I removed from the Fx77 (in order to use the FNG from the output Herschel to delete the blinker instead).
May 13th, 2021, 6:59 am
Forum: Patterns
Topic: The Hunting of the Elementary Conduits
Replies: 521
Views: 292104

### Re: The Hunting of the Elementary Conduits

Specifically, one can remove a fishhook, a block, and a loaf, and this allows the Fx119 to be follwed by an independent conduit. If you're following it with an independent conduit, then you can remove another eater without impacting the recovery time: x = 216, y = 184, rule = LifeHistory C\$.2C\$2C10...
May 12th, 2021, 10:55 am
Forum: Patterns
Replies: 35
Views: 2789

And by the way, can we maybe pick a canonical orientation for this technology, and stick with it? The posts in this thread seem to have things flying off in three or four different directions, pretty much at random. My vote would be for north-northwest, as shown above, to match the LifeWiki article...
May 11th, 2021, 4:08 pm
Forum: Patterns
Replies: 285
Views: 110257

The p59 gun can be adapted to emit MWSSes without requiring any more engines: x = 293, y = 252, rule = B3/S23 89b2o57b3o\$88bobo56bo2bo\$82b2o4bo61bo\$80bo2bo2b2ob4o53bo3bo\$80b2obobob obo2bo57bo\$83bobobobo57bobo\$83bobob2o\$84bo2\$97b2o\$88b2o7bo\$88b2o5bobo\$ 69bo25b2o\$69b3o\$72bo\$71b2o2\$79bo\$63b2o12b2o12b3o...
May 10th, 2021, 5:24 am
Forum: Patterns
Replies: 35
Views: 2789

May13 wrote:
May 9th, 2021, 11:46 pm
p48 rakes (I think it's possible to use less knightships to make NW and NE rakes without kickback):
Great work! That constitutes a 'versatile puffer'; I've updated the status page: https://conwaylife.com/wiki/LifeWiki:Ga ... tatus_page
May 9th, 2021, 10:00 pm
Forum: General Discussion
Topic: apgsearch v5.0
Replies: 133
Views: 53407

### Re: apgsearch v5.0

As for the haul counts, thanks for the info - sorry if I'm focusing on this too much, I've just read a lot about people breaking stuff There's no need to worry about this. Every Catagolue downtime that's happened in the past has been from searching other cellular automata (not B3/S23). and I'm not ...
May 9th, 2021, 9:07 pm
Forum: Patterns
Replies: 35
Views: 2789

Here's a period-12 (2,1)c/6 backrake obtained by perturbing the output of a p12 block puffer (a tagalong for the recently-discovered sprayer) with a nearby heavyweight minstrel: x = 185, y = 97, rule = B3/S23 14bo\$14b2o\$5bo5bo3bo\$3bo2bo2b3o2b3o\$11bo2b2o\$3bo2b3ob2o6b2o\$4b2o3bo8b 2o\$12bo\$19bo2bo\$14bob...
May 9th, 2021, 7:02 pm
Forum: Patterns
Topic: Four new almost-knightships CGOL
Replies: 30
Views: 11447

### Re: Four new almost-knightships CGOL

:idea: calcyman, your partial is infinitely extensible ! Excellent discovery! My ikpx2 search finally (after 3 months running on 16 threads or so) found a completion, which means that we have an extensible knightship with a powerful spark at the front: x = 112, y = 413, rule = B3/S23 10b3o3bo2bobo\$...
May 9th, 2021, 6:38 am
Forum: General Discussion
Replies: 427
Views: 165350

It'd be nice to see the actual date where I found that neat double BLSE , for example. Replace 'object' with 'attribute' in that URL: https://catagolue.hatsya.com/attribute/yl144_1_32_3cc5a04d9bfba1ec28e6ae438ed34a56/b3s23 and it tells you: *** yl144_1_32_3cc5a04d9bfba1ec28e6ae438ed34a56 *** Soup k...
May 9th, 2021, 6:09 am
Forum: General Discussion
Topic: apgsearch v5.0
Replies: 133
Views: 53407

### Re: apgsearch v5.0

Two questions (and a lot of subquestions :V ): First, is there any value in feeding apgsearch more memory to increase efficiency anywhere? (and if so, would it be a possible command line switch?) Not when running CPU-only, no. When running on a GPU it benefits from having extra GPU memory (because ...
May 7th, 2021, 6:20 am
Forum: General Discussion
Topic: apgsearch v5.0
Replies: 133
Views: 53407

### Re: apgsearch v5.0

How do I get apgsearch to run on Cygwin or Ubuntu? There is an error whenever I try to run it. Edit: The error is \$ ./recompile.sh --rule b3/s2 rm -f *.o */*.o *.op */*.op *.gdca */*.gcda *.profraw *.profdata apgluxe echo Clean done Clean done Not a git repository; skipping updates... Symmetry unsp...
May 6th, 2021, 9:47 am
Forum: General Discussion
Topic: Shinjuku: a database of glider syntheses
Replies: 38
Views: 22547

### Re: Shinjuku: a database of glider syntheses

Is it just me or can infinite growth pattern syntheses just not be submitted? I've tried this about three times now, and while the RLE was considered completely valid nothing showed up after the given times, even though other submissions did. Correct, they can't. If you want to include linear growt...
May 5th, 2021, 8:10 am
Forum: Patterns
Replies: 2289
Views: 1183218

Not quite -- p690 is a small enough gun that doubling it only gets you to 51x45: 48×45 is viable with an alternate twin bees stabilisation, for the extra space taken up by the semi-Snark: x = 48, y = 45, rule = B3/S23 20b2o\$20bo2bo\$12b5o7bo\$11bo5bo6bo\$11bo3b2o7bo\$12bo7bo2bo7b3o\$20b2o8b2o b2o\$30b2ob...
May 3rd, 2021, 6:05 am
Forum: General Discussion
Topic: Catagolue Oddities
Replies: 674
Views: 269252

### Re: Catagolue Oddities

Ian07 wrote:
May 1st, 2021, 9:05 pm
Someone apparently added some messless objects to the C1 census that don't meet the 500 threshold: https://catagolue.hatsya.com/census/b3s23/C1/messless
The attribute logs exist:

https://catagolue.hatsya.com/attribute/messless_4h
April 25th, 2021, 9:28 pm
Forum: General Discussion
Replies: 427
Views: 165350

MathAndCode wrote:
April 25th, 2021, 8:30 pm
Is there any page on Catagolue that lists all of the still lives with a particular glider cost?
You can download /textcensus/b3s23/synthesis-costs (21 megabytes) and then filter through that yourself.
April 24th, 2021, 7:19 am
Forum: Patterns
Topic: 2c/4 Flyby Reactions
Replies: 19
Views: 6183

### 2c/4 conduits

For example, here's a conduit to translate a block: x = 89, y = 22, rule = B3/S23 43bo\$41bo3bo\$46bo13bo\$41bo4bo11bo3bo\$42b5o16bo\$58bo4bo4b3o\$59b5o3b5o\$ 67b3ob2o\$70b2o4\$87b2o\$87b2o2\$69bo\$41b3o23bo3bo\$b3o36b5o27bo\$5o15b4o16b 3ob2o21bo4bo\$3ob2o13b6o18b2o23b5o\$3b2o14b4ob2o\$23b2o! There seem to be a few ...
April 23rd, 2021, 3:30 pm
Forum: General Discussion
Topic: Catagolue Oddities
Replies: 674
Views: 269252

### Re: Catagolue Oddities

bubblegum wrote:
April 23rd, 2021, 12:51 pm
cgoler2 wrote:
April 23rd, 2021, 12:12 pm
Why are there two p2s called "beacon on something" and ":D"?
"something" was imported from an older census, and ":D" was Calcyman's idea of a joke.
I don't think it was my idea; I copied it from an anonymous comment someone made on the page.
April 23rd, 2021, 11:37 am
Forum: General Discussion
Topic: Catagolue Oddities
Replies: 674
Views: 269252

### Re: Catagolue Oddities

Is it just me or are the images significantly offset to the side here? https://catagolue.appspot.com/census/b2s34h/D12/xp10 Yes, it's because it uses the pattern's bounding box, which then becomes a parallelogram when you apply the affine transformation (to make the hexagonal cells regular), and th...
April 22nd, 2021, 4:44 pm
Forum: General Discussion
Topic: Catagolue Oddities
Replies: 674
Views: 269252

### Re: Catagolue Oddities

Something weird is going on here, not sure if the viewer is at fault or if it's catagolue: https://catagolue.appspot.com/object/xp32_y1g2sszy111_gsuvufsz25801_086m68z05_g84fk18z2x1_gos6e7kz01_0421ifs/g17b3s23 Fixed in commit https://gitlab.com/apgoucher/catagolue/-/commit/ae6988f77a5b914224b8f8a53a...