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It's an eater, right? Maybe we could call it "Eater B1", then. Strictly speaking, it's not an eater on its own. It is a traffic light predecessor eater only being combined with the eater1 (or another pattern that can eat a blinker). x = 9, y = 15, rule = B3/S23 6b2o$b2o2bo2bo$bobo2b2o$4b2o$5bo$5bob...

At its most active, 9 cells of the eater3 differ from its stable state. This happens twice: once when the loaf has been flipped over and is starting to interact with the pre-block, and again 2 generations later. Thank you very much for the explanation. There has been misunderstanding on my side. I ...

Bellman One is down to 22 gliders I'm still skeptic about this name, because it looks to me like a potential source of confusion with the program itself. Personally I always, since I saw that pattern, called it 'hanged man' inwardly. But that's just my association, probably not the nicest one. Thou...

Congratulations! The long hook synthesis is a very good find. But the mango looks really awkward, so here is a small optimization:

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x = 23, y = 16, rule = B3/S23
$16bobo$16b2o$10bo6bo$10bobo$5bo4b2o$4bo9bo$4b3o6bobo$13b2o3b3o$3o8b2o
5bo$2bo9bo6bo$bo10bob2o$9b2obo2bo$9b2ob2o!

I believe, there is no such a thread yet, but probably it makes sense to make one. My particular question is why Bellman doesn't find the eater 3 with this input. (The pattern is a part of the rectifier.) Are search criteria too restrictive, or does Bellman simply not do exhaustive search within giv...

I found an interesting rectifier-based catalyst with Bellman. Can anyone do something with the final r-pentamino? Probably not, because it's in the middle of the reactor zone :( x = 27, y = 31, rule = B3/S23 bobo7bo$2b2o6bobo$2bo7bobo$11bo12$20b2o$20b2o2$2b2o$bobo$bo$2o4$11b2o 12bo$10bobo11bobo$10bo...

Oh, c'mon. If you wanna see something really interconnected, you should take a look at the last step of 60P5H2V0 synthesis.

It's a very beautiful mechanism. Is it a part of a bigger project you have in mind?

We know that the snark can be synthesised using 49 gliders. Actually, 48. It could be possible to start with the carrier motif, then work to the beehive and hook and finally the block, but is an explicit construction even possible ? I see no particular problems for synthesizing this still life. I w...

codeholic: no, because you can fill in the area around it with stuff that dies in one generation. Or do you mean as if only the area that is considered to be the parent is the area that surrounds the figure out to two cells away? Yes, probably only the area of influence should be taken into account...

Another interesting question is the "grandfather problem": Does there exist a finite pattern that has a parent , but no grandparents? A similar one: Does there exist a pattern that has only one parent, and it is the pattern itself? J. H. Conway will pay 50 bucks for finding such a pattern or provin...

Rhombic wrote:Not the first one to notice it but far too common for the lack of information...

Well, according to http://www.conwaylife.com/wiki/List_of_ ... till_lifes it is not common, as it is not listed there. Could you give an example of a reaction, which produces this still life?

I wonder, if this reaction has any value:

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x = 5, y = 10, rule = B3/S23
b3o$b3o$b3o4$b3o$b3o$o3bo$2bo!

I tried to find a stable catalyst for it with Bellman (potentially resulting in a p38 oscillator), but no luck so far

pcallahan wrote:I was hoping to find a smaller century eater.

Here is a small century eater for the bistable switch.

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x = 75, y = 61, rule = B3/S23
2bo$obo$b2o17$57bob2o$57b2obo2$55b5o$54bo2bo2bo$44bo9b2o3bobo$42bobo
15b2o$43b2o15$73b2o$73b2o4$61bo$60bobo$61b2o9$49b2o$48bobo$48bo$47b2o!

There are some common-use search programs on this page.

But some patterns, like Caterpillar or Gemini required writing search programs of their own kind.

P. S. The most complete catalog of patterns is probably http://pentadecathlon.com/

Yes. It is a paperclip

Due to certain complications, my web site went down recently. I am currently working on finding a place to get it back up again, including many additional syntheses. This is very good news! I'm looking forward to the new reincarnation of the site. Welcome aboard! What are your requirements for the ...

There are some modifications I made to the original gencols code, while working on the glider synthesis for the Snark . https://github.com/codeholic/gencols The most important is an ability to filter resulting patterns not only by alive cells (using "-test1" and "-test2" command line options), but a...

If one was about to find a snark recipe for 2 slow salvos, which one of the three possible orientations of the outcome would be most useful for building a geminoid? x = 156, y = 27, rule = B3/S23 15bo61b2o$15b3o58bobo50b2o$18bo51b2o4bo53bo$17b2o49bo2bo2b2ob4o47bo$ 68b2obobobobo2bo47b5o14b2o$71bobobo...

Isn't Matthias Merzenich the author of the new p33 stabilisation?

http://www.conwaylife.com/wiki/Talk:92P33.1

Continuous 50-glider synthesis of the snark. x = 239, y = 237, rule = B3/S23 217bo$216bo7bobo$216b3o5b2o10bobo$225bo10b2o$237bo11$212bobo$212b2o$ 213bo$11bo$12b2o$11b2o3$199bo$2bobo194bobo$3b2o194b2o$3bo5$4bo$2bobo$ 3b2o7bo175bo$13b2o171b2o$12b2o173b2o4$181bo$180bo$180b3o5$26bo$27b2o 144bobo$26b2o14...

Actually, the block can be constructed with just one glider ;) The loop -> "oblique hat" reaction produces a beehive as a side product. If the latter is not removed, it does not affect any further syntheses. But afterwards it can be transformed into a block in just the right place with 2 gliders. Si...

Okay, finally, here is a 44-glider synthesis for the "heart" of the Snark (the original version). x = 156, y = 164, rule = B3/S23 4bo$5bo$3b3o$53bo$b2o48b2o$obo24b3o17b3o2b2o13b2o18b2o18b2o18b2o18b2o$ 2bo63bo2bo16bo2bo16bo2bo16bo2bo4bobo9bo2bo$54b3o9bobo17bobo17bobo17bob o5b2o10bobo$46b2o6bo10b2ob2o...

I've also experienced this, but I've worked it around by placing spaces on borders of the input pattern.

A couple of steps forward: x = 156, y = 129, rule = B3/S23 4bo$5bo$3b3o$53bo$b2o48b2o$obo24b3o17b3o2b2o13b2o18b2o18b2o18b2o18b2o$ 2bo63bo2bo16bo2bo16bo2bo16bo2bo4bobo9bo2bo$54b3o9bobo17bobo17bobo17bob o5b2o10bobo$46b2o6bo10b2ob2o15b2ob2o15b2ob2o15b2ob2o5bo2b3o4b2ob2o$45b obo7bo82bo8bo2bo$47bo66b2o18...

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