Search found 2189 matches

by calcyman
May 25th, 2020, 8:47 am
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 1864
Views: 895402

Re: Thread for your unsure discoveries

Wow! that's a new smallest G-to-LWSS! There's a known 107x65 G-to-LWSS: x = 107, y = 65, rule = LifeHistory 42.A54.2A$42.3A51.B2A2B$45.A36.2A13.4B$44.2A7.2A28.A12.5B$44.5B2.2B2A B27.A.AB7.6B$46.4B.4B29.2AB.3B3.7B$45.11B30.16B$45.5B.7B28.17B$44.6B. 8B15.2A11.16B$43.15B15.B2AB9.19B$43.14B16.3B8.17B2....
by calcyman
May 24th, 2020, 6:41 pm
Forum: Patterns
Topic: Highway robber challenge
Replies: 11
Views: 299

Re: Highway robber challenge

EDIT: Can Bellman provide a replacement for the white block here? Manual experimentation gives a solution that involves an awkward block preventing any last hope of inserting the pi-heptomino: x = 93, y = 84, rule = LifeHistory 45.B$44.2BA$44.3BA$45.3AB$24.2A20.4B$23.A.A21.4B$23.A5.A18.4B$14.2A6. 2...
by calcyman
May 24th, 2020, 6:10 pm
Forum: Patterns
Topic: Highway robber challenge
Replies: 11
Views: 299

Re: Highway robber challenge

Here's the 1997 reflector. Unfortunately the eater2 removes an important glider: #C Stable glider reflector #C The device uses the following Herschel stages by David Buckingham #C (B) and Paul Callahan (C): 64 (B), 190 (B), 153 (C), 153, 64, 64 #C and 117 (B) steps. #C Dieter Leithner, 27 Apr 1997 x...
by calcyman
May 24th, 2020, 5:08 pm
Forum: Patterns
Topic: Highway robber challenge
Replies: 11
Views: 299

Highway robber challenge

Can anyone find a way to reroute the southern Herschel output to replace the half-blockade? I recall that in the late 90s someone (Dean Hickerson? Dieter Leithner?) built a stable reflector which restored a half-blockade. x = 93, y = 84, rule = LifeHistory 45.A$46.A$44.3AB$45.4B$24.2A20.4B$23.A.A21....
by calcyman
May 24th, 2020, 8:32 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 1892
Views: 505582

Re: Thread for basic questions

gameoflifemaniac wrote:
May 24th, 2020, 7:33 am
How much would the 0E0P metapillar weigh in RLE format?
An individual B3/S23 metacell is 66162592 bytes in RLE format, so a meta-Caterpillar would probably be about 780 terabytes.
by calcyman
May 23rd, 2020, 3:24 pm
Forum: Patterns
Topic: The Hunting of the New Herschel Conduits
Replies: 987
Views: 727879

Re: The Hunting of the New Herschel Conduits

How about this? Lol Perfect! Dave Greene's favourite method works here: x = 73, y = 68, rule = LifeHistory 19.2A$19.A.A$21.A4.2A$17.4A.2A2.A2.A$17.A2.A.A.A.A.2A$19.BABABA.A$20. B2ABA.A$21.2B.BA$20.3B$11.2A6.4B$12.A6.B2A3B$12.A.AB3.B2A3B$13.2AB. 10B$15.13B$15.14B$15.15B$17.8B2.4B$17.6B5.4B$16.9B4.4B...
by calcyman
May 23rd, 2020, 1:26 pm
Forum: Patterns
Topic: The Hunting of the New Herschel Conduits
Replies: 987
Views: 727879

Re: The Hunting of the New Herschel Conduits

can be fixed ? This almost works, but leaves an Annoying Beehive: x = 36, y = 31, rule = LifeHistory 27.A$25.3A$20.2A2.A$20.A.A2.A$6.4B.B9.B.2A2.A$6.7B.3B3.2B2.A.2A$6.12B .2BAB.A5.D$6.14BA.A.A4.DBD$2D4.14B.2A.2A2.BDBD3B$D.D7.9B9.2BD4B$D9.9B 8.7B2A$10.11B4.9B2A$10.11B.11B.B$6.19BD6B$6.19BDBD4B$6.19B...
by calcyman
May 22nd, 2020, 5:42 pm
Forum: General Discussion
Topic: Thread for basic questions
Replies: 1892
Views: 505582

Re: Thread for basic questions

Saka wrote:
May 22nd, 2020, 5:36 pm
One more question about QuickLife and it's [sic] bricks: Do the bricks overlap with each other? Im assuming not.
Yes, they're disjoint.
by calcyman
May 22nd, 2020, 5:38 pm
Forum: Patterns
Topic: Small Spaceship Syntheses
Replies: 438
Views: 343967

Re: Small Spaceship Syntheses

googoIpIex wrote:
May 22nd, 2020, 2:43 pm
is this reduction to the escorted OWSS synthesis known?
If it's cheaper than the one on Catagolue, it's most probably new. :)
by calcyman
May 20th, 2020, 1:36 pm
Forum: Website Discussion
Topic: Suggested LifeWiki edits
Replies: 163
Views: 48344

Re: Suggested LifeWiki edits

Hunting wrote:
May 20th, 2020, 12:48 am
Yeah, but the problem is "and thus not counted". If Unix on snacker is known by 1976, how is 117P18 "the first period 18 oscillator to be found"?
I think you're correct here. I'll amend the wording in the LifeWiki accordingly.
by calcyman
May 19th, 2020, 6:09 am
Forum: Scripts
Topic: CAViewer - A Cellular Automaton Simulator written in Python
Replies: 123
Views: 4118

Re: CAViewer - A Cellular Automaton Simulator written in Python

@martin.novy What is the algorithm used by scipy.ndimage.convolve? Is the time complexity faster than O(X * Y * N) where X is the width of the grid, Y is the height of the grid and N is the number of neighbours? If N is large, then the Fast Fourier Transform will win with complexity O(X Y log(X Y))...
by calcyman
May 19th, 2020, 5:02 am
Forum: General Discussion
Topic: CAcoin
Replies: 52
Views: 40879

Re: CAcoin

The security of Bitcoin doesn't require having a continuous block difficulty. The reason for having a continuous block difficulty is to make each block take comparable amounts of time to mine. But even with continuous block difficulty, the block mining time is not constant, but rather a random varia...
by calcyman
May 16th, 2020, 11:43 am
Forum: Patterns
Topic: How about a unidimensional spaceship?
Replies: 36
Views: 28958

Re: How about a unidimensional spaceship?

To reduce complexity, I thought that a dynamic tape-reading head might be more appropriate. Here's one which should be relatively easily synthesisable: Adding another two basic rakes (on each side) is sufficient to produce a backward LWSS stream as output, which can then be fed into an interpreter:...
by calcyman
May 12th, 2020, 11:01 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 1892
Views: 505582

Re: Thread for basic questions

If making a quadratic replicator using the 0E0P metacell is overkill, maybe one could make a smaller one? Most of the complexity of the 0E0P metacell is a result of having the DNA tightly rolled up into a compact nucleus. A quadratic replicator would need to either: (a) solve these problems all ove...
by calcyman
May 12th, 2020, 9:15 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 1892
Views: 505582

Re: Thread for basic questions

"definitely possible with a silly amount of engineering" depending on your definition of "single-engine Cordership". I think it's possible with a non-silly amount of engineering. It should be possible to have a Geminoid-like thing (except where the tape bounces parallel to the direction of travel, ...
by calcyman
May 12th, 2020, 8:27 am
Forum: Patterns
Topic: Unbounded Binary Counter Challenge
Replies: 19
Views: 4654

Re: Unbounded Binary Counter Challenge

Just checking -- everyone is aware of loggrow-diam.lif from jslife-oversize, yes? (I think someone more recently recreated it with p256 guns.)
by calcyman
May 9th, 2020, 8:12 am
Forum: Patterns
Topic: 31c/240 caterpillar working notes
Replies: 381
Views: 259990

Re: 31c/240 caterpillar working notes

By interleaving some of the tail with the body of the previous Silverfish, I was able to shave in excess of 1000 cells from the height.

It's now 53253 cells high in one of its phases:
silverfish4.mc
(855.97 KiB) Downloaded 24 times
by calcyman
May 9th, 2020, 6:52 am
Forum: Patterns
Topic: 31c/240 caterpillar working notes
Replies: 381
Views: 259990

Re: 31c/240 caterpillar working notes

Complete!
silverfish2.mc
(859.4 KiB) Downloaded 35 times
by calcyman
May 9th, 2020, 6:25 am
Forum: Patterns
Topic: 31c/240 caterpillar working notes
Replies: 381
Views: 259990

Re: 31c/240 caterpillar working notes

Right -- this tail is almost working, but the 6R forerake produces gliders on the wrong lane, which causes the displacement of the interchanges to be wrong, which in turn means that the resultant MWSSes end up on the wrong horizontal lanes and therefore spectacularly fail to clean up the six blocks:...
by calcyman
May 8th, 2020, 1:48 pm
Forum: General Discussion
Topic: Good way to memorize patterns? Question from a beginner
Replies: 2
Views: 285

Re: Good way to memorize patterns? Question from a beginner

Good afternoon! In general, memorising patterns (other than very simple patterns such as the eater2 and LWSS) isn't generally done, because it's an unnecessary use of neurons (our brains are adept for creating new ideas; we have hard drives and SSDs for the banal task of memorisation). If you're int...
by calcyman
May 8th, 2020, 9:28 am
Forum: Patterns
Topic: 31c/240 caterpillar working notes
Replies: 381
Views: 259990

Re: 31c/240 caterpillar working notes

Here's the basis of a backend based on Chris's solution for the centipede: x = 1376, y = 1124, rule = B3/S23 2o1372b2o$obo1370bobo$b2o1370b2o6$8b2o1356b2o$b3o3bo2bo1354bo2bo3b3o$ 7bo2bo1354bo2bo$8b2o649b2o54b2o649b2o$659b2o54b2o7$483b2o114b2o174b2o 114b2o$483b2o114b2o174b2o114b2o11$2o1372b2o$obo1370...
by calcyman
May 1st, 2020, 6:42 pm
Forum: Patterns
Topic: Waterbear Glider Construction Challenge
Replies: 23
Views: 3335

Re: Waterbear Glider Construction Challenge

I've added a generation-2536 greenprint of that sextet of Herschels, along with FtW syntheses of the first two: x = 1721, y = 2908, rule = LifeSuper 1449.2H$1449.H.2H$1451.2H$1449.2H$1447.2H2$1447.H.H$1448.H22$5.I$6.I$ 4.3I3$8.I206.M$6.I.I207.2M$7.2I206.2M3$217.M.M$218.2M$218.M3$143.M.M$ 144.2M$144....
by calcyman
May 1st, 2020, 2:06 pm
Forum: Patterns
Topic: Waterbear Glider Construction Challenge
Replies: 23
Views: 3335

Re: Waterbear Glider Construction Challenge

I've added four of those Herschels. x = 1665, y = 2874, rule = LifeSuper 159.M$160.2M$159.2M3$161.M.M$162.2M$162.M3$87.M.M$88.2M$88.M84.M$171. M.M$90.M81.2M$91.2M$90.2M83.M$176.M$174.3M$26.M$27.2M$26.2M73.M$102.M $100.3M$28.M.M$29.2M$29.M74.M$102.M.M$103.2M$4.M.M$5.2M$5.M34.M$38.M. M$7.M31.2M$8.2M$7...
by calcyman
April 30th, 2020, 5:48 am
Forum: General Discussion
Topic: Is there a Spaceship That is Also a Gun?
Replies: 2
Views: 394

Re: Is there a Spaceship That is Also a Gun?

I was wondering if there is a pattern that moves across indefinitely like a glider while shooting off one or more 'bullets'. A 'battleship' :D But I dont know the term to search for such a thing, and figured you fine folks might have a clue as to examples or search terms. Cheers! https://conwaylife...
by calcyman
April 21st, 2020, 11:05 pm
Forum: Patterns
Topic: Soup search results
Replies: 2154
Views: 1274859

Re: Soup search results

The largest megasized soup so far was found in C1 on 21 April 2020 (6249 cells, reached at generation 19968). This G1 soup has a limsup population of 6758: x = 16, y = 16, rule = B3/S23 obbooobooobobobo$ bbobbboobbbooobo$ bbboobbbbbobbooo$ obbbobooobbooobb$ oboboboobbbboobb$ boobbobbobbboobb$ ooooo...