Incomplete search patterns - try to complete

For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.
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HartmutHolzwart
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Joined: June 27th, 2009, 10:58 am
Location: Germany

Incomplete search patterns - try to complete

Post by HartmutHolzwart » February 7th, 2010, 8:05 am

This thread is meant for incomplete search results of wls or other search programs. Others might try to complete these patterns.

My first entry is an imcomplete front part of a c/5 grey ship. So far I was unable to find a descending part at the back to complete the ship.

Code: Select all

x = 326, y = 178, rule = B3/S23
38$290bo$290b2o$289bo2bo$288b2o3bo$282bobo3b2o$281bo13bo$281bo3bo3b4o
2bo$283b2o$281b3o5b7o$274b3o4bo2bo3bo$277bo5b2o3b8o$274bob2o4bo3bo$
268b2o3b2ob2o4b14o$267b3o4bo2b2obo$266b2ob2o3b2ob19o$268bo$266b2o6b22o
$259b2o5bo2bo3bo$260bobo5b2o3b23o$259bob2o$253bo5bo7b29o$253b2o4bo2bo
3bo$252bo2bo4b4ob31o$251b2o3bo3bo3bo$245bobo3b2o6b37o$244bo13bo$244bo
3bo3b4o2b38o$246b2o$244b3o5b44o$237b3o4bo2bo3bo$240bo5b2o3b45o$237bob
2o4bo3bo$231b2o3b2ob2o4b51o$230b3o4bo2b2obo$229b2ob2o3b2ob56o$231bo$
229b2o6b59o$222b2o5bo2bo3bo$223bobo5b2o3b60o$222bob2o$216bo5bo7b66o$
216b2o4bo2bo3bo$215bo2bo4b4ob68o$214b2o3bo3bo3bo$208bobo3b2o6b74o$207b
o13bo$207bo3bo3b4o2b75o$209b2o$207b3o5b81o$200b3o4bo2bo3bo$203bo5b2o3b
82o$200bob2o4bo3bo$194b2o3b2ob2o4b88o$193b3o4bo2b2obo$192b2ob2o3b2ob
93o$194bo$28b2o51b2o18bo13bobo30b2o42b2o6b96o$24b2o12bo4b2obo10bobo18b
obo3bo12bo3bo2bo5b2o3bobo4bo7b2obob4o8bo2bo2bo8bobo11b4o12bo2bo3bo$14b
4ob2o3b4o3bo6b2o12bo4bobo2b2o12b4obo4b2o5b2o3bo2bo8bo4bo6b4o4b2o5b3o6b
2ob4obo7bobo7bob2o4bo13b2o3b97o$14bo4b3o4b2o3b2obo5b3o3b3o3b2o3bo6bo2b
3o5bo3b2o5bo6b3o3bo8bo3bo3b2o5b3o7bobob2o4b2o2bobobo4bo4b2o6bob2obo6bo
2bobo$15b3obob2obo2bo5bobo3bobobo2bo6bo4b2o2bo7bo3b5o2b2obo2b2o2bo5b2o
3bobo2bo3b2o2bob2obo3bo5b2o4bobo3b9o4b2o2bo10bo4bo4b2o11b103o$15bobobo
11bo5bobobo5bo5b4ob2o2b4o5b4o4bo8b2o3bo7b2o3bo3bo3b3o2b2o2bo3bobo3b6o
4bob4obobo6bo3bo3bo2bo6b2ob2ob2obobo3bo$16bob3o6b2o2bo2bob3o2bo5b5o2b
2obob2o3b5o7b3o3bo10bo12bobo5b3o2b2obobo3bobo3b2o3bo7b2o3bo3bo3bo2bobo
bobo7bobobo3b5ob105o$15bo6b2o8bo10bo4b5o3b2o6b2obo2b2obobo2b4o23b2o6bo
7b2obo11b3o5b2o4b2o4bo3bo5bobo8bo3bobobo4bo$16b6obo9b7ob2o8bo5b2o7bo9b
2o35b2o8b2o2b7o3bo7b3o8b5o2b4obo8b3o3b113o2$16b6obo9b7ob2o8bo5b2o7bo9b
2o35b2o8b2o2b7o3bo7b3o8b5o2b4obo8b3o3b113o$15bo6b2o8bo10bo4b5o3b2o6b2o
bo2b2obobo2b4o23b2o6bo7b2obo11b3o5b2o4b2o4bo3bo5bobo8bo3bobobo4bo$16bo
b3o6b2o2bo2bob3o2bo5b5o2b2obob2o3b5o7b3o3bo10bo12bobo5b3o2b2obobo3bobo
3b2o3bo7b2o3bo3bo3bo2bobobobo7bobobo3b5ob105o$15bobobo11bo5bobobo5bo5b
4ob2o2b4o5b4o4bo8b2o3bo7b2o3bo3bo3b3o2b2o2bo3bobo3b6o4bob4obobo6bo3bo
3bo2bo6b2ob2ob2obobo3bo$15b3obob2obo2bo5bobo3bobobo2bo6bo4b2o2bo7bo3b
5o2b2obo2b2o2bo5b2o3bobo2bo3b2o2bob2obo3bo5b2o4bobo3b9o4b2o2bo10bo4bo
4b2o11b103o$14bo4b3o4b2o3b2obo5b3o3b3o3b2o3bo6bo2b3o5bo3b2o5bo6b3o3bo
8bo3bo3b2o5b3o7bobob2o4b2o2bobobo4bo4b2o6bob2obo6bo2bobo$14b4ob2o3b4o
3bo6b2o12bo4bobo2b2o12b4obo4b2o5b2o3bo2bo8bo4bo6b4o4b2o5b3o6b2ob4obo7b
obo7bob2o4bo13b2o3b97o$24b2o12bo4b2obo10bobo18bobo3bo12bo3bo2bo5b2o3bo
bo4bo7b2obob4o8bo2bo2bo8bobo11b4o12bo2bo3bo$28b2o51b2o18bo13bobo30b2o
42b2o6b96o$194bo$192b2ob2o3b2ob93o$193b3o4bo2b2obo$194b2o3b2ob2o4b88o$
200bob2o4bo3bo$203bo5b2o3b82o$200b3o4bo2bo3bo$207b3o5b81o$209b2o$207bo
3bo3b4o2b75o$207bo13bo$208bobo3b2o6b74o$214b2o3bo3bo3bo$215bo2bo4b4ob
68o$216b2o4bo2bo3bo$216bo5bo7b66o$222bob2o$223bobo5b2o3b60o$222b2o5bo
2bo3bo$229b2o6b59o$231bo$229b2ob2o3b2ob56o$230b3o4bo2b2obo$231b2o3b2ob
2o4b51o$237bob2o4bo3bo$240bo5b2o3b45o$237b3o4bo2bo3bo$244b3o5b44o$246b
2o$244bo3bo3b4o2b38o$244bo13bo$245bobo3b2o6b37o$251b2o3bo3bo3bo$252bo
2bo4b4ob31o$253b2o4bo2bo3bo$253bo5bo7b29o$259bob2o$260bobo5b2o3b23o$
259b2o5bo2bo3bo$266b2o6b22o$268bo$266b2ob2o3b2ob19o$267b3o4bo2b2obo$
268b2o3b2ob2o4b14o$274bob2o4bo3bo$277bo5b2o3b8o$274b3o4bo2bo3bo$281b3o
5b7o$283b2o$281bo3bo3b4o2bo$281bo13bo$282bobo3b2o$288b2o3bo$289bo2bo$
290b2o$290bo!
Here is another part added:

Code: Select all

x = 351, y = 201, rule = B3/S23
26$217bo24bo24bo24bo$216bo2bo21bo2bo21bo2bo21bo2bo2$215b2o3bo19b2o3bo
19b2o3bo19b2o3bo$215b5o20b5o20b5o20b5o$218bo24bo24bo24bo$214b6o19b6o
19b6o19b6o$215bo3bo20bo3bo20bo3bo20bo3bo$215bo3bo20bo3bo20bo3bo20bo3bo
$215bo24bo24bo24bo$214b2obo21b2obo21b2obo21b2obo$214bo2bo21bo2bo21bo2b
o21bo2bo$214b5o20b5o20b5o20b5o$215bob2o21bob2o21bob2o21bob2o$216b2o23b
2o23b2o23b2o2$216b2o23b2o23b2o23b2o$215bob2o21bob2o21bob2o21bob2o$214b
5o20b5o20b5o20b5o$214bo2bo21bo2bo21bo2bo21bo2bo$214b2obo21b2obo21b2obo
21b2obo$215bo24bo24bo24bo$215bo3bo20bo3bo20bo3bo20bo3bo$215bo3bo20bo3b
o20bo3bo20bo3bo$214b6o19b6o19b6o19b6o$218bo24bo24bo24bo$215b5o20b5o20b
5o20b5o$215b2o3bo19b2o3bo19b2o3bo19b2o3bo2$216bo4bo19bo4bo19bo4bo19bo
4bo$217bo24bo24bo24bo$219b2o23b2o23b2o23b2o$220b2o23b2o23b2o23b2o$221b
2obobo19b2obobo19b2obobo19b2obobo$221b2o5b4o14b2o5b4o14b2o5b4o14b2o5b
4o$224bo4bo3bo15bo4bo3bo15bo4bo3bo15bo4bo3bo$222b2ob2o2b2o3bo12b2ob2o
2b2o3bo12b2ob2o2b2o3bo12b2ob2o2b2o3bo$222bo4bob2o16bo4bob2o16bo4bob2o
16bo4bob2o$233bo24bo24bo24bo$230bobo22bobo22bobo22bobo2$228b4o21b4o21b
4o21b4o$227bo2b4o2bo8bo6bo2b4o2bo8bo6bo2b4o2bo8bo6bo2b4o2bo$227bo2bo2b
o2bo2b2o2bo2bo5bo2bo2bo2bo2b2o2bo2bo5bo2bo2bo2bo2b2o2bo2bo5bo2bo2bo2bo
2b2o$215b2o12bo3bobo4b2o3bo8bo3bobo4b2o3bo8bo3bobo4b2o3bo8bo3bobo$216b
obo8b2o3bo2bo4b2o3bo6b2o3bo2bo4b2o3bo6b2o3bo2bo4b2o3bo6b2o3bo2bo$215bo
b2o7bo2bo2bo3b2obo3b2o6bo2bo2bo3b2obo3b2o6bo2bo2bo3b2obo3b2o6bo2bo2bo
3b2o$209bo5bo7b3ob2o2b2o3b2obo4bo3b3ob2o2b2o3b2obo4bo3b3ob2o2b2o3b2obo
4bo3b3ob2o2b2o3b2o$209b2o4bo2bo3bobobobo2bo11bo5bobobo2bo11bo5bobobo2b
o11bo5bobobo2bo$208bo2bo4b4ob3o3bo3b10o3b5o3bo3b10o3b5o3bo3b10o3b5o3bo
3b8o$207b2o3bo3bo3bo$201bobo3b2o6b99o$200bo13bo$200bo3bo3b4o2b100o$
202b2o$200b3o5b106o$193b3o4bo2bo3bo$196bo5b2o3b107o$193bob2o4bo3bo$
187b2o3b2ob2o4b113o$186b3o4bo2b2obo$185b2ob2o3b2ob118o$187bo$21b2o51b
2o18bo13bobo30b2o42b2o6b121o$17b2o12bo4b2obo10bobo18bobo3bo12bo3bo2bo
5b2o3bobo4bo7b2obob4o8bo2bo2bo8bobo11b4o12bo2bo3bo$7b4ob2o3b4o3bo6b2o
12bo4bobo2b2o12b4obo4b2o5b2o3bo2bo8bo4bo6b4o4b2o5b3o6b2ob4obo7bobo7bob
2o4bo13b2o3b122o$7bo4b3o4b2o3b2obo5b3o3b3o3b2o3bo6bo2b3o5bo3b2o5bo6b3o
3bo8bo3bo3b2o5b3o7bobob2o4b2o2bobobo4bo4b2o6bob2obo6bo2bobo$8b3obob2ob
o2bo5bobo3bobobo2bo6bo4b2o2bo7bo3b5o2b2obo2b2o2bo5b2o3bobo2bo3b2o2bob
2obo3bo5b2o4bobo3b9o4b2o2bo10bo4bo4b2o11b128o$8bobobo11bo5bobobo5bo5b
4ob2o2b4o5b4o4bo8b2o3bo7b2o3bo3bo3b3o2b2o2bo3bobo3b6o4bob4obobo6bo3bo
3bo2bo6b2ob2ob2obobo3bo$9bob3o6b2o2bo2bob3o2bo5b5o2b2obob2o3b5o7b3o3bo
10bo12bobo5b3o2b2obobo3bobo3b2o3bo7b2o3bo3bo3bo2bobobobo7bobobo3b5ob
130o$8bo6b2o8bo10bo4b5o3b2o6b2obo2b2obobo2b4o23b2o6bo7b2obo11b3o5b2o4b
2o4bo3bo5bobo8bo3bobobo4bo$9b6obo9b7ob2o8bo5b2o7bo9b2o35b2o8b2o2b7o3bo
7b3o8b5o2b4obo8b3o3b138o2$9b6obo9b7ob2o8bo5b2o7bo9b2o35b2o8b2o2b7o3bo
7b3o8b5o2b4obo8b3o3b138o$8bo6b2o8bo10bo4b5o3b2o6b2obo2b2obobo2b4o23b2o
6bo7b2obo11b3o5b2o4b2o4bo3bo5bobo8bo3bobobo4bo$9bob3o6b2o2bo2bob3o2bo
5b5o2b2obob2o3b5o7b3o3bo10bo12bobo5b3o2b2obobo3bobo3b2o3bo7b2o3bo3bo3b
o2bobobobo7bobobo3b5ob130o$8bobobo11bo5bobobo5bo5b4ob2o2b4o5b4o4bo8b2o
3bo7b2o3bo3bo3b3o2b2o2bo3bobo3b6o4bob4obobo6bo3bo3bo2bo6b2ob2ob2obobo
3bo$8b3obob2obo2bo5bobo3bobobo2bo6bo4b2o2bo7bo3b5o2b2obo2b2o2bo5b2o3bo
bo2bo3b2o2bob2obo3bo5b2o4bobo3b9o4b2o2bo10bo4bo4b2o11b128o$7bo4b3o4b2o
3b2obo5b3o3b3o3b2o3bo6bo2b3o5bo3b2o5bo6b3o3bo8bo3bo3b2o5b3o7bobob2o4b
2o2bobobo4bo4b2o6bob2obo6bo2bobo$7b4ob2o3b4o3bo6b2o12bo4bobo2b2o12b4ob
o4b2o5b2o3bo2bo8bo4bo6b4o4b2o5b3o6b2ob4obo7bobo7bob2o4bo13b2o3b122o$
17b2o12bo4b2obo10bobo18bobo3bo12bo3bo2bo5b2o3bobo4bo7b2obob4o8bo2bo2bo
8bobo11b4o12bo2bo3bo$21b2o51b2o18bo13bobo30b2o42b2o6b121o$187bo$185b2o
b2o3b2ob118o$186b3o4bo2b2obo$187b2o3b2ob2o4b113o$193bob2o4bo3bo$196bo
5b2o3b107o$193b3o4bo2bo3bo$200b3o5b106o$202b2o$200bo3bo3b4o2b100o$200b
o13bo$201bobo3b2o6b99o$207b2o3bo3bo3bo$208bo2bo4b4ob3o3bo3b10o3b5o3bo
3b10o3b5o3bo3b10o3b5o3bo3b8o$209b2o4bo2bo3bobobobo2bo11bo5bobobo2bo11b
o5bobobo2bo11bo5bobobo2bo$209bo5bo7b3ob2o2b2o3b2obo4bo3b3ob2o2b2o3b2ob
o4bo3b3ob2o2b2o3b2obo4bo3b3ob2o2b2o3b2o$215bob2o7bo2bo2bo3b2obo3b2o6bo
2bo2bo3b2obo3b2o6bo2bo2bo3b2obo3b2o6bo2bo2bo3b2o$216bobo8b2o3bo2bo4b2o
3bo6b2o3bo2bo4b2o3bo6b2o3bo2bo4b2o3bo6b2o3bo2bo$215b2o12bo3bobo4b2o3bo
8bo3bobo4b2o3bo8bo3bobo4b2o3bo8bo3bobo$227bo2bo2bo2bo2b2o2bo2bo5bo2bo
2bo2bo2b2o2bo2bo5bo2bo2bo2bo2b2o2bo2bo5bo2bo2bo2bo2b2o$227bo2b4o2bo8bo
6bo2b4o2bo8bo6bo2b4o2bo8bo6bo2b4o2bo$228b4o21b4o21b4o21b4o2$230bobo22b
obo22bobo22bobo$233bo24bo24bo24bo$222bo4bob2o16bo4bob2o16bo4bob2o16bo
4bob2o$222b2ob2o2b2o3bo12b2ob2o2b2o3bo12b2ob2o2b2o3bo12b2ob2o2b2o3bo$
224bo4bo3bo15bo4bo3bo15bo4bo3bo15bo4bo3bo$221b2o5b4o14b2o5b4o14b2o5b4o
14b2o5b4o$221b2obobo19b2obobo19b2obobo19b2obobo$220b2o23b2o23b2o23b2o$
219b2o23b2o23b2o23b2o$217bo24bo24bo24bo$216bo4bo19bo4bo19bo4bo19bo4bo
2$215b2o3bo19b2o3bo19b2o3bo19b2o3bo$215b5o20b5o20b5o20b5o$218bo24bo24b
o24bo$214b6o19b6o19b6o19b6o$215bo3bo20bo3bo20bo3bo20bo3bo$215bo3bo20bo
3bo20bo3bo20bo3bo$215bo24bo24bo24bo$214b2obo21b2obo21b2obo21b2obo$214b
o2bo21bo2bo21bo2bo21bo2bo$214b5o20b5o20b5o20b5o$215bob2o21bob2o21bob2o
21bob2o$216b2o23b2o23b2o23b2o2$216b2o23b2o23b2o23b2o$215bob2o21bob2o
21bob2o21bob2o$214b5o20b5o20b5o20b5o$214bo2bo21bo2bo21bo2bo21bo2bo$
214b2obo21b2obo21b2obo21b2obo$215bo24bo24bo24bo$215bo3bo20bo3bo20bo3bo
20bo3bo$215bo3bo20bo3bo20bo3bo20bo3bo$214b6o19b6o19b6o19b6o$218bo24bo
24bo24bo$215b5o20b5o20b5o20b5o$215b2o3bo19b2o3bo19b2o3bo19b2o3bo2$216b
o2bo21bo2bo21bo2bo21bo2bo$217bo24bo24bo24bo!
Here is a small middle part for a 2c/7 ship. A completing lef/right wing is missing.

Code: Select all

x = 110, y = 33, rule = B3/S23
10$10bo8bo8bo8bo8bo8bo8bo8bo8bo8bo$10b2o6b3o6b3o6b3o6b3o6b3o6b3o6b3o6b
3o6b2o$10b2o6b3o6b3o6b3o6b3o6b3o6b3o6b3o6b3o6b2o3$12b2o2b2o3b2o2b2o3b
2o2b2o3b2o2b2o3b2o2b2o3b2o2b2o3b2o2b2o3b2o2b2o3b2o2b2o$11b3o2b3ob3o2b
3ob3o2b3ob3o2b3ob3o2b3ob3o2b3ob3o2b3ob3o2b3ob3o2b3o2$14b2o7b2o7b2o7b2o
7b2o7b2o7b2o7b2o7b2o$18bobo6bobo6bobo6bobo6bobo6bobo6bobo6bobo2$17bo3b
o4bo3bo4bo3bo4bo3bo4bo3bo4bo3bo4bo3bo4bo3bo$23b2o7b2o7b2o7b2o7b2o7b2o
7b2o!

MikeP
Posts: 81
Joined: February 7th, 2010, 9:51 am
Location: Cambridge, UK

Re: Incomplete search patterns - try to complete

Post by MikeP » February 7th, 2010, 11:01 am

So this is where all the Life discussion goes on!

My catalyst searcher found this interesting pi-heptomino reaction a couple of years ago. Maybe someone can do something useful with the spark.

Code: Select all

x = 18, y = 23, rule = B3/S23
13bo$12bo$12b3o8$2o$2o2$15b2o$14bo2bo$15b3o2$10bo2b3o$10b4o2bo$5bobo7b
o$5b2obo3b3o$8bo3bo$8b2o!

User avatar
calcyman
Posts: 2102
Joined: June 1st, 2009, 4:32 pm

Re: Incomplete search patterns - try to complete

Post by calcyman » February 7th, 2010, 1:06 pm

Welcome to the forum!


My catalyst searcher found this ...

Wow! Your program must be truly remarkable -- how long did it take to find that catalysis? It looks like a hybrid of the 'drifter searcher' and the 'catalyst' search programs, something that I've been wanting for ages. :D

Did you program that searcher yourself, or did you use an existing one? The pattern appears to be beyond the capabilities of any search programs I know of, including the drifter searcher, catalyst and ptbsearch. The principle looks like an ideal candidate for finding the elusive compact stable reflector. Dave Greene is offering a $100 prize for the first person to discover a 90° reflector in a 35*35 box. I've had some tantalisingly close calls, but your method might prove successful.


I think that the bookend catalysis is new -- I haven't seen it before.
What do you do with ill crystallographers? Take them to the mono-clinic!

MikeP
Posts: 81
Joined: February 7th, 2010, 9:51 am
Location: Cambridge, UK

Re: Incomplete search patterns - try to complete

Post by MikeP » February 7th, 2010, 2:44 pm

calcyman wrote:Wow! Your program must be truly remarkable -- how long did it take to find that catalysis? It looks like a hybrid of the 'drifter searcher' and the 'catalyst' search programs, something that I've been wanting for ages. :D
I can't honestly remember! The run which found that result wouldn't have lasted for more than a day or so because I don't often have the patience to let it run for that long without tweaking the search parameters somehow, but I have no idea how many iterations of tweaking and restarting I went through before finding it. I think there's a bit of luck involved too!

All I can tell from the file timestamps is that I found it in October 2007. :)
calcyman wrote:Did you program that searcher yourself, or did you use an existing one? The pattern appears to be beyond the capabilities of any search programs I know of, including the drifter searcher, catalyst and ptbsearch. The principle looks like an ideal candidate for finding the elusive compact stable reflector.
It's my own program. It works similarly to the description of 'dr' here: http://www.ics.uci.edu/~eppstein/ca/search.html - it simulates the evolution of a "perturbation" (which in this case was a pi-heptomino) until it needs the value of an unknown cell from the "stable" pattern, at which point it performs a backtracking search, stopping if the "perturbation" stabilises, moves too far into the new still life, or hits the edge of the universe or the end of the simulated time period.

The small stable reflector is the "holy grail" which I'm trying to work towards. I haven't found one yet, but it spits out a lot of other interesting results too - most of which I'm sure are already known, but some of which are probably new.

Axaj
Posts: 232
Joined: September 26th, 2009, 12:23 am

Re: Incomplete search patterns - try to complete

Post by Axaj » February 7th, 2010, 2:55 pm

Are you planning on releasing that program?
Image

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calcyman
Posts: 2102
Joined: June 1st, 2009, 4:32 pm

Re: Incomplete search patterns - try to complete

Post by calcyman » February 7th, 2010, 3:57 pm

The small stable reflector is the "holy grail" which I'm trying to work towards.
Same here. I hold three out of the four stable reflector records (fastest 180°, smallest 180° and fastest 90°), but Stephen Silver continues to hold the record for the smallest 90° reflector (at 81 * 64).


I haven't found one yet, but it spits out a lot of other interesting results too - most of which I'm sure are already known, but some of which are probably new.
Please can you show me those outputs? I'll be able to confirm whether or not they're already known. It's likely that they are new, considering the exotic pi perturbation you showed me.


I've found a total of three equivalent perfect 180° reflectors, each of which fits inside a 20*20 box. Unfortunately, the input glider paths are blocked by an eater, so they have no use:

Code: Select all

x = 85, y = 19, rule = S23/B3
oo$oo$13boo16boo15boo16boo15boo$13bo18bo15bo18bo15bo$8bobbobo18bobo8bo
bbobo18bobo8bobbobo$6boo3boo20boo6boo3boo20boo6boo3boo$7boo33boo33boo
4$6boo33boo33boo$6boo5boo26boo33boo$13boo$$79bo$bboo38bo35bobo$3bo37bo
bo34bobbo$3o39bo36boo$o!

I did find a fully functional 180° reflector, the rectifier, which is useful and has a recovery time of 106 generations:

Code: Select all

x = 41, y = 33, rule = S23/B3
11bo$10bobo$10bobo$11bo11$16bo$17booboo$16boobboo$$bboo$bobo$bo$oo$31b
oo$30bobbobboo$30bobo4bo$11boo18bo5boboo$10bobo21boobobo$10bo23bobbobb
o$9boo20bo4bobboo$31b5o$$33boobo$33boboo!
The rectifier was the result of manually placing an eater3 to perturb the mess of a known reaction. The amount of pure luck and serendipity was incredible!


I have four 'near-miss 90° reflectors', where a block is displaced one cell in the process:

Code: Select all

x = 92, y = 90, rule = B3/S23
4bobo$5boo65bobo$5bo67boo$73bo3$22boo$22bo67boo$20bobo67bo$20boo66bobo
$bboo84boo$bobo$bo70boo$oo70boo$14boo$14boo6boo58boo$22boo58boo3$11boo
$12bo71bo$9b3o71bobo$9bo74bo34$20boo$20boo$25bo$23b3o$22bo$22boo$oo7bo
$oo8boo$9boo$$70bobo$71boo$71bo$12boo$12boo$$88boo$88bo$86bobo$86boo$$
30bo39boo$29bobo38boo$30bo$80boo$80boo$$20boo$20boo4boo56bo$26boo55bob
o$83bobbo$84boo$18boo$18boo!
It works similarly to the description of 'dr' here.
Yes, 'dr' is an abbreviation for 'drifter searcher'. Your program seems to be better at perturbing open explosions than dr, which is primarily suited to perturbing 2c/3 signals etc.



Is your program any good at finding transparent catalysts? An example of a transparent catalyst is the beehive in my rectifier, where the still life disappears for a duration of time, before being restored in its original location.
What do you do with ill crystallographers? Take them to the mono-clinic!

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Re: Incomplete search patterns - try to complete

Post by MikeP » February 8th, 2010, 2:47 pm

Axaj wrote:Are you planning on releasing that program?
At some point. It needs a lot of tidying up first - a lot of the search parameters are set by editing the source code directly and you have to pretty much know it inside out in order to get anything useful out of it. One day I'll get round to feeding the parameters in as part of the input file, and at that point I'll probably put it on the net.
calcyman wrote:Please can you show me those outputs? I'll be able to confirm whether or not they're already known. It's likely that they are new, considering the exotic pi perturbation you showed me.
Here's the other stuff from my "interesting" folder. A few of these contain more live cells than they need due to a bug in an older version of the searcher :)

B-heptomino eater (nearly):

Code: Select all

x = 9, y = 17, rule = B3/S23
2obo$b3o$2bo6$7bo$6bobo$6bobo$3bo3bo$3b4o2$5b2o$4bobo$5bo!
A couple of pi-heptomino-to-glider reactions, which aren't any use in practice as far as I can see:

Code: Select all

x = 14, y = 16, rule = B3/S23
7b2o$7b2o4$6b3o$8bo$6b3o3$2o$o2bob2o3b2o$2b2obo4bo$3bobobo3b3o$3bo2b2o
5bo$2b2o!

Code: Select all

x = 12, y = 15, rule = B3/S23
5b2o$5b2o4$4b3o$6bo$4b3o3$2b2o$bobo4b2o$bo6bo$2o7b3o$11bo!
A pi and a block form a Herschel and a glider:

Code: Select all

x = 5, y = 7, rule = B3/S23
3b2o$3b2o3$3o$2bo$3o!
Some more sparks from pi heptominoes. I haven't tried coupling these to any pi-generating reactions.

Code: Select all

x = 17, y = 12, rule = B3/S23
3o7b2o$2bo8bo$3o8bobo2bo$9b2o2b4o$8bo2b2o$9bobo2bo$4b2o4bo2b2o$4bo$5b
3o$8bo$7bo2b2o$8b2obo!

Code: Select all

x = 13, y = 12, rule = B3/S23
3o$2bo8bo$3o7bobo$11bo4$2b2o$2b2o2b2o$6bobo$8bo$8b2o!

Code: Select all

x = 14, y = 8, rule = B3/S23
3o$2bo$3o$9b2o$9bobo$11bo$b2o8bobo$b2o9b2o!

Code: Select all

x = 11, y = 12, rule = B3/S23
3o$2bo5b2o$3o5b2o3$4b2o$4bo$5b3o$8bo$7bo$8b3o$10bo!
Various other pi-heptomino reactions:

Code: Select all

x = 264, y = 66, rule = B3/S23
3bo$2bobo156b2o98bo$3bo4b2o151bo49bo48bobo$8bo100bo49bobo47b3o49bo$6bo
bo98b3o45b2o2b2o47bo48b2o$2b2o2b2o98bo48b2o51b2o47b2o$2b2o102b2o4$3o4b
2o42b3o4b2o42b3o4b2o42b3o4b2o42b3o4b2o42b3o4b2o$2bo4b2o44bo4b2o44bo4b
2o44bo4b2o44bo4b2o44bo4b2o$3o48b3o48b3o48b3o48b3o48b3o41$2b2o$2b2o4b2o
150b2o$8bo101b2o48bo$6bobo101bo50bo$2b2o2b2o45b2o53bobo44b2o3b2o$2b2o
49b2o49b2o2b2o45b2o$104b2o4$3o4b2o42b3o4b2o42b3o4b2o42b3o4b2o$2bo4b2o
44bo4b2o44bo4b2o44bo4b2o$3o48b3o48b3o48b3o!
I also have an enormous pile of intermediate results, which aren't in an immediately useful form, and contain a lot of duplicates and noise. Periodically I try to think of a way to automatically classify them, but real life usually takes over at some point!
calcyman wrote:I've found a total of three equivalent perfect 180° reflectors, each of which fits inside a 20*20 box. Unfortunately, the input glider paths are blocked by an eater, so they have no use:
So near, but yet so far! I tried moving the still lifes around in the hope of making a 90° reflector out of it, but it doesn't work - the input path is still blocked, and the central block gets replaced in the wrong place. :(

I might see if my searcher can find a replacement for the problematic eater.
calcyman wrote:Is your program any good at finding transparent catalysts? An example of a transparent catalyst is the beehive in my rectifier, where the still life disappears for a duration of time, before being restored in its original location.
Good question. I'll have a think about it. It might be possible to set up a search to find such things.

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Re: Incomplete search patterns - try to complete

Post by calcyman » February 8th, 2010, 3:21 pm

As a suggestion, try perturbing each of these four patterns, sequentially, to see if you can restore the initial block. It will take more than a combination of three blocks, eaters or tubs, as I have already covered that branch of the search.

Code: Select all

x = 100, y = 14, rule = S23/B3
36bo$34b3o$33bo$8boo23boo$8bo$6bobo$6boo$obo27bobo27bobo27bobo$boo28b
oo28boo28boo$bo29bo29bo29bo$55boo39boo$oo28boo22bobo3boo28boo4bobo$oo
28boo22bo5boo28boo6bo$53boo43boo!
They all naturally radiate gliders, very quickly, and there is a possibility that the central block can be restored.
What do you do with ill crystallographers? Take them to the mono-clinic!

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Re: Incomplete search patterns - try to complete

Post by MikeP » February 17th, 2010, 3:00 pm

Well, a couple of days of searching has turned up a few interesting results. I'm going to try and perturb some of these further, but in the meantime maybe someone else can think of something to do with them.

Code: Select all

x = 468, y = 76, rule = B3/S23
199bobo47bobo47bobo96bobo47bobo$200b2o48b2o48b2o97b2o48b2o$200bo49bo
49bo98bo49bo3$216b2o48b2o48b2o97b2o48b2o$216bo49bo49bo98bo49bo$3bobo
46bobo46bobo46bobo61bobo47bobo47bobo32bobo61bobo47bobo$4b2o47b2o47b2o
47b2o61b2o48b2o48b2o34b2o61b2o48b2o$4bo48bo48bo48bo198bo$199b2o247b2o$
199b2o247b2o$20b2o47b2o47b2o47b2o197b2o$20bo30b2o16bo48bo48bo40b2o48b
2o48b2o56bo40b2o48b2o$3b2o13bobo29bo2bo13bobo46bobo46bobo40b2o48b2o48b
2o54bobo40b2o48b2o$3bo2bo11b2o31b2o2bo11b2o47b2o47b2o197b2o99b2o$b2o2b
2o45bob2o155bo99bo89b2o63bo$o2b2o47bo150b2o2b2obobo94b2obobo88b2o2b2o
58bo$2o3b2o44b2ob2o147bo4bob2o45bo5b2o40bo2bob2o94bo50b2o5bo$5bobo44bo
bobo43b2o99bobo2bo2bo46bobo3bobo40b2o2bo38b2o50bob4o52bo6b3o$6bo5b2o
38bo2bo5b2o37bo9b2o47b2o40b2o3b2obo47bo3bobo46bobo35bo9b2o40b2obo53bo
9bo$12b2o37b2o8b2o39bob2o4b2o47b2o47bo53bo48b2o36b3o6b2o97b2o$101b2ob
2o102bobo140bo$15bo48bo48bo48bo46b2o138b2o10bo$11b2obobo43b2obobo35b2o
b2o3b2obobo43b2obobo185bo7b2obobo$12bob2o45bob2o37bobo5bob2o45bob2o
188bo6bob2o$10bo2bo45bo2bo39bobo3bo2bo45bo2bo189b2o4bo2bo$10b2obo45b2o
bo40bo4b2obo45b2obo195b2obo$12bo48bo48bo48bo198bo$12bobo46bobo46bobo
46bobo196bobo$13b2o47b2o47b2o47b2o197b2o23$3bobo$4b2o$4bo3$20b2o$20bo$
18bobo$18b2o2$3b2o$3b2o2$12b2o$12b2o4$12b2o$13bo5b2o$12bo6bo$12b2o6b3o
$22bo!

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calcyman
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Re: Incomplete search patterns - try to complete

Post by calcyman » February 17th, 2010, 3:56 pm

That snake --> block --> snake restoration reaction is eye-opening!


Dieter Leithner found this pattern about 12 years ago:

Code: Select all

*...............
***.............
...*............
..**............
................
................
.....*..........
....*...........
....***.........
................
............**..
.....**.....*.*.
.....**.......*.
..............**
................
................
................
................
................
......**........
......**........
The central block is restored, but the lowermost one is deleted. Could your program find a reusable replacement for that block?


This loaf reaction might also work; I haven't had time to experiment with it:

Code: Select all

.*.......
*.*....*.
*..*..*..
.**...***
What do you do with ill crystallographers? Take them to the mono-clinic!

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Extrementhusiast
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Re: Incomplete search patterns - try to complete

Post by Extrementhusiast » February 19th, 2010, 8:14 pm

This moves the block:
x = 27, y = 32, rule = B3/S23
4$5bo$3bobo$4b2o3$20b2o$20bo$18bobo$18b2o5$12b2o$7b2o3b2o$8bo$5b3o7bo$
5bo5b2obobo$12bob2o$10bo2bo$10b2obo$12bo$12bobo$13b2o!
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Re: Incomplete search patterns - try to complete

Post by MikeP » February 25th, 2010, 9:04 pm

One thing I'm starting to get used to is all the "so near, but yet so far" moments, like this one.

Code: Select all

x = 18, y = 22, rule = B3/S23
2bo$2b3o$5bo$4b2o3$7bo$6bo$6b3o2$14b2o$7b2o5bobo$7b2o7bo$16b2o3$6bo$2o
bobobo2bo$ob2obob4o$6bo$8bo$7b2o!

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Re: Incomplete search patterns - try to complete

Post by calcyman » February 26th, 2010, 3:51 am

One thing I'm starting to get used to is all the "so near, but yet so far" moments, like this one.

:o Now, that is probably the closest anyone has come to a perfect microreflector -- even closer than my four block-displacement reactions.


If that microreflector did work, then it would facilitate oscillators of periods 43 and 53, which are currently unknown.
What do you do with ill crystallographers? Take them to the mono-clinic!

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Re: Incomplete search patterns - try to complete

Post by knightlife » February 26th, 2010, 7:20 am

MikeP wrote:One thing I'm starting to get used to is all the "so near, but yet so far" moments, like this one.

Code: Select all

x = 18, y = 22, rule = B3/S23
2bo$2b3o$5bo$4b2o3$7bo$6bo$6b3o2$14b2o$7b2o5bobo$7b2o7bo$16b2o3$6bo$2o
bobobo2bo$ob2obob4o$6bo$8bo$7b2o!
That is an impressive program you have there, MikeP. If a small stable reflector exists, then I would say you will very likely find one soon.
The closest I got was this:

Code: Select all

x = 14, y = 13, rule = B3/S23
bo$2bo4b2o$3o4b2o4$7b2obo$7b2ob3o$13bo$7b2ob3o$8bobo$8bobo$9bo!


My idea was to place catalysts near an eater to convert any remnant sparks to a glider. The idea almost worked...
The reaction above will eat the approaching glider if the block is not there, but there is only a small spark to work with.

Glider eaters tend to be very efficient and quick.
The question is: are there any 'messy' glider eaters that are slow to recover because their sparks linger?
The 'drifter' type of eater is not much help because there is little or no spark to work with.
If there are some 'small' ones, then they would be candidates for a 'small' stable reflector.

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calcyman
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Re: Incomplete search patterns - try to complete

Post by calcyman » February 26th, 2010, 12:48 pm

... but there is only a small spark to work with.
These eaters have more isolated sparks (Dean Hickerson):

Code: Select all

x = 47, y = 14, rule = B3/S23
oo4boobo$bo4boboo$o3boo4boo6bo17bo$oobbo5bo8bobooboo11bobbooboobo$5bo
5bo5b3obboboo9b3o3boboboo$oobboo4boo10bo18bo$bobbo5bo9bobo15boobo$o4bo
5bo8boo17boboo$oobboo4boo19boo3b3o$4bo5bo20boobbo$oo3bo5bo8boo13boboo$
bobboo4boo8boo14bobbo$o5boobo28boo$oo4boboo!
Here are two interesting results (Paul Callahan and Dean Hickerson, respectively). One creates a block for free; the other deletes it from within Drifterworld.

Code: Select all

x = 51, y = 28, rule = B3/S23
15bo$13b3o$12bo$6bo5boo34bo$4bobo41bobo$5boo41boo$24boo$13bo6boobbobbo
$12bobo5boboboboo$oo10boo7bobbo5boo$oo22boboobbo$23boobobobo$22bo5bob
oo$20b3oboobbo$19bo3bobboboboo$19b3obb3oboboobboo$7boo13boo3bo6boo3bo$
8bo4boo6bobboo12bobo$5b3o6bo6boobo14bobo$5bo5b3o10bo3bobboboo6bo$11bo
12boobb4oboo6boo$$30b5o$29bo5bo$29boobboo$34boboboo$33bobboobo$33boo!
My rectifier throws out some isolated sparks. The version below has been reduced in area, suppressing the output glider:

Code: Select all

....*.............................
...*.*............................
...*.*............................
....*.............................
..................................
..................................
..................................
..................................
..................................
..................................
..................................
..................................
..................................
..................................
.........*........................
..........**.**...................
.........**..**...................
..................................
..................................
..................................
..................................
..................................
........................**........
**.....................*..*..**...
**.....................*.*....*...
....**..................*.....*.**
...*.*.....................**.*.*.
...*.......................*..*..*
..**....................*....*..**
........................*****.....
..................................
..........................**.*....
..........................*.**....
What do you do with ill crystallographers? Take them to the mono-clinic!

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velcrorex
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Re: Incomplete search patterns - try to complete

Post by velcrorex » March 2nd, 2010, 9:24 pm

Part of a 3/7 c spaceship.

Code: Select all

x = 48, y = 23
23bo23bo$22bobo22bo$21bobboobboobo6boo6bo$9bo10b3o4bo3bo5boboo5bo$3bob
oobobo13b3o4bo4booboo$bb5obboo3b4ob3o4boo7boobo5boo$bo3boo4bobo3boo5b
3obo6bobo3bo$ooboobboob3o10bo5boboboo3bobo$b5o7bob3o3bobobo4bob4o9boo$
bboobo8boboo6bo15bobboobo$3bo29b3o5boo$3bobbo$3bo29b3o5boo$bboobo8bob
oo6bo15bobboobo$b5o7bob3o3bobobo4bob4o9boo$ooboobboob3o10bo5boboboo3bo
bo$bo3boo4bobo3boo5b3obo6bobo3bo$bb5obboo3b4ob3o4boo7boobo5boo$3boboob
obo13b3o4bo4booboo$9bo10b3o4bo3bo5boboo5bo$21bobboobboobo6boo6bo$22bob
o22bo$23bo23bo!
Part of a c/7 ship

Code: Select all

x = 40, y = 17
11bo$10bobbo12bo$5b3obbo14bobo11bo$10bo10boobb3oboo3bo4bo$boo11boboobb
o7b4o3b4o$obbo6bobob8o4boobobobobo$boobboo3bo28bo$5boo4b12obbo8boobo$$
5boo4b12obbo8boobo$boobboo3bo28bo$obbo6bobob8o4boobobobobo$boo11boboo
bbo7b4o3b4o$10bo10boobb3oboo3bo4bo$5b3obbo14bobo11bo$10bobbo12bo$11bo!
-Josh Ball.

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Re: Incomplete search patterns - try to complete

Post by Sokwe » March 2nd, 2010, 11:21 pm

velcrorex wrote:Part of a 3/7 c spaceship.
Here's a partial 3c/7 result found by Paul Tooke back in 2006. It uses the same front end as the ship you posted above.

Code: Select all

x = 69, y = 25, rule = B3/S23
48bobo9b2obo$23bo24bobo7bo5bo$22bobo18b2ob2obobo6bo5bo$21bo2b2o2b2obo
10bo2bob2o8b2o7bo$9bo10b3o4bo3bo10b5o6b3o4bo3b3o$3bob2obobo13b3o4bo4b
3o3bobo2bob2o4bo4bobo2bo$2b5o2b2o3b4ob3o4b2o7b2ob2o7bo2b2o5bob2ob3o$bo
3b2o4bobo3b2o5b3obo6bo3bobob2ob2o8bob3o3b2o$2ob2o2b2ob3o10bo5bobob2o4b
o4b2o3b3o4b6o2b2obo$b5o7bob3o3bobobo4bob4o3b2o2b2o3b4o2bo2bobob3o3bo$
2b2obo8bob2o6bo17bo4b6obob3ob2o5b2o$3bo29b3o4b2o4bo2bo5b2o5bo$3bo2bo
32bo6b3o18b2o$3bo29b3o4b2o4bo2bo5b2o5bo$2b2obo8bob2o6bo17bo4b6obob3ob
2o5b2o$b5o7bob3o3bobobo4bob4o3b2o2b2o3b4o2bo2bobob3o3bo$2ob2o2b2ob3o
10bo5bobob2o4bo4b2o3b3o4b6o2b2obo$bo3b2o4bobo3b2o5b3obo6bo3bobob2ob2o
8bob3o3b2o$2b5o2b2o3b4ob3o4b2o7b2ob2o7bo2b2o5bob2ob3o$3bob2obobo13b3o
4bo4b3o3bobo2bob2o4bo4bobo2bo$9bo10b3o4bo3bo10b5o6b3o4bo3b3o$21bo2b2o
2b2obo10bo2bob2o8b2o7bo$22bobo18b2ob2obobo6bo5bo$23bo24bobo7bo5bo$48bo
bo9b2obo!
Also, the c/7 partial spaceship is nice. How did you find it?

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velcrorex
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Re: Incomplete search patterns - try to complete

Post by velcrorex » March 3rd, 2010, 12:04 am

That partial for the 3c/7 is nice. I never got around to finishing my 23odd search for 3/7, I'm glad somebody did. Searching the 25 odd appears a bit daunting.

Used WLS for the c/7, just happened to look at it an save the results partway. I'm not sure if I finished that search, though it's likely somebody else has. It would be nice to setup something to record the longest partial patterns.

Sometimes if I see a partial pattern I like I'll try to widen the pattern search a little bit, though I haven't been doing this in a regular or systematic way. And this has not yielded any positive results.

I also had a nice partial for c/8 diagonal with glide reflect, but sadly didn't save it.
-Josh Ball.

knightlife
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Re: Incomplete search patterns - try to complete

Post by knightlife » March 6th, 2010, 1:44 pm

Costs one block to reflect 90 degrees:

Code: Select all

x = 20, y = 21, rule = B3/S23
bobo$2b2o$2bo3$18b2o$18bo$16bobo$16b2o2$2o$2o2$10b2o$10b2o3$13b2o$13bo
$14b3o$16bo!
There is a close variant with one eater in a different position:

Code: Select all

x = 20, y = 21, rule = B3/S23
bobo$2b2o$2bo3$18b2o$18bo$16bobo$16b2o2$2o$2o2$10b2o$10b2o3$8b2o$9bo$
6b3o$6bo!

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Re: Incomplete search patterns - try to complete

Post by Extrementhusiast » March 7th, 2010, 1:49 am

Maybe you could perturb the LoM in some way as to restore the block.

EDIT: I managed to reform the block one cell off with a tub.
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velcrorex
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Re: Incomplete search patterns - try to complete

Post by velcrorex » March 7th, 2010, 2:34 pm

A small fragment of a c/4 p8 ship, possibly curious because of the R-pentomino at the front of the ship.

Code: Select all

x = 26, y = 8
15boo8bo$14bobbo3boobbo$7boboo3boobo3boobbo$o5b3o3bobboboo3bobbo$3obb
oo5boboo5b5o$bo3bob3ob3ob7o3bo$6bob3o7bobbo3bo$19boobboo!
-Josh Ball.

MikeP
Posts: 81
Joined: February 7th, 2010, 9:51 am
Location: Cambridge, UK

Re: Incomplete search patterns - try to complete

Post by MikeP » March 7th, 2010, 3:05 pm

Extrementhusiast wrote:Maybe you could perturb the LoM in some way as to restore the block.
I had a look for a reaction like this, but didn't find one. I've noticed that you can use a beehive instead of the block, though, so I'm re-running it with a different filter.
Extrementhusiast wrote:EDIT: I managed to reform the block one cell off with a tub.
I found a few ways of doing this. These near-misses are just enough to keep my hopes up!

knightlife
Posts: 566
Joined: May 31st, 2009, 12:08 am

Re: Incomplete search patterns - try to complete

Post by knightlife » March 7th, 2010, 8:04 pm

I have been trying to coax a glider from calcyman's eater that he made by reducing the rectifier.

The left side seems to be most promising.
The results are tantalizing -- here is an example:

Code: Select all

x = 45, y = 39, rule = B3/S23
o$b2o$2o4$15bo$14bobo$14bobo$15bo5$4b2o$4b2o2$7b2o$7b2o2$4b2o$4b2o18b
2o$24b2o6$35b2o$11b2o21bo2bo2b2o$11b2o21bobo4bo$15b2o18bo5bob2o$14bobo
21b2obobo$14bo23bo2bo2bo$13b2o20bo4bo2b2o$35b5o2$37b2obo$37bob2o!
If only there were a catalyst that could do the same job as the three-block cluster!
I have tried many simple catalysts, but I think a fancy one that MikeP can generate with his program might do the trick!

Code: Select all

x = 45, y = 39, rule = B3/S23
o$b2o$2o4$15bo$14bobo$14bobo$15bo9$2b2o$2bobo$3bobo$4b2o18b2o$24b2o6$
35b2o$11b2o21bo2bo2b2o$11b2o21bobo4bo$15b2o18bo5bob2o$14bobo21b2obobo$
14bo23bo2bo2bo$13b2o20bo4bo2b2o$35b5o2$37b2obo$37bob2o!


A reduced version, to try catalysts on the right side (probably much harder):

Code: Select all

x = 30, y = 35, rule = B3/S23
o$b2o$2o4$15bo$14bobo$14bobo$15bo12$24b2o$24b2o7$11b2o$11b2o$15b2o10b
2o$14bobo9bo2bo$14bo12b2o$13b2o!
Extracts a Herschel at gen 170 which is immediately blocked (you can do anything with a Herschel, right?):

Code: Select all

x = 57, y = 39, rule = B3/S23
12bo$13b2o$12b2o4$27bo$26bobo$26bobo$27bo10$17b2o$17b2o$2o34b2o$2o34b
2o6$47b2o$46bo2bo2b2o$46bobo4bo$27b2o18bo5bob2o$26bobo21b2obobo$26bo
23bo2bo2bo$25b2o20bo4bo2b2o$47b5o2$49b2obo$49bob2o!
A different mechanism where the glider barely escapes through the center:

Code: Select all

x = 46, y = 33, rule = B3/S23
16bo$15bobo$9bo5bobo$10b2o4bo$9b2o11$25b2o$25b2o$4b2o$3bo2bo$3bo2bo$4b
2o$9b2o$b2o6b2o25b2o$o2bo31bo2bo2b2o$b2o32bobo4bo$16b2o18bo5bob2o$15bo
bo21b2obobo$15bo23bo2bo2bo$14b2o20bo4bo2b2o$36b5o2$38b2obo$38bob2o!
Edit:
This one is interesting, maybe someone can do something with it:

Code: Select all

x = 19, y = 16, rule = B3/S23
5bobo9b2o$6b2o9bo$6bo8bobo$15b2o4$2b2o$bobo5b2o$bo7b2o$2o2$7b2o$8bo$5b
3o$5bo!
Edit 2:
Found this:

Code: Select all

x = 20, y = 20, rule = B3/S23
2bobo$3b2o$3bo2$18b2o$18bo$16bobo$16b2o2$2o$2o2$10b2o$10b2o3$8b2o$9bo$
6b3o$6bo!

User avatar
calcyman
Posts: 2102
Joined: June 1st, 2009, 4:32 pm

Re: Incomplete search patterns - try to complete

Post by calcyman » March 8th, 2010, 4:53 pm

Extracts a Herschel at gen 170 which is immediately blocked
That's the most promising result. It's a shame that the block is displaced by (3,0).
you can do anything with a Herschel, right?
Yes, it's probably the most desirable output from a reaction.


I might try an exhaustive ptbsearch of simple catalysations. Hopefully, that would find a repeatable reaction that dispenses a glider. I can perform searches like [transparent block + 2 opaque catalysts] in about one hour or so.

In fact, there's probably a good chance that _something_ restores itself, but I'm not so confident about it being able to release a glider. Producing a still-life on the edge of the pattern is the next best thing, though, since a subsequent glider could transform it into a Herschel to repeat the reaction. That would probably improve on my 466-tick 90° record, but won't be smaller than the existing 90° reflectors, and certainly won't win Dave's prize.

I found a few ways of doing this.
I found the tub reaction a while ago, along with an equivalent loaf reaction and non-trivially equivalent block-and-eaters-only reaction. They're near the top of this thread, but are repeated below, for convenience:

Code: Select all

x = 101, y = 24, rule = S23/B3
4bobo$5boo$5bo40bobo32bobo$47boo33boo$47bo34bo$$22boo$22bo$20bobo41boo
33boo$20boo42bo34bo$bboo58bobo32bobo$bobo58boo33boo$bo$oo44boo33boo$
14boo30boo33boo$14boo6boo$22boo32boo33boo$56boo33boo$$11boo$12bo82bo$
9b3o46bo35bobo$9bo47bobo34bobbo$58bo36boo!
What do you do with ill crystallographers? Take them to the mono-clinic!

Jason Summers
Posts: 36
Joined: July 23rd, 2009, 8:08 pm

Re: Incomplete search patterns - try to complete

Post by Jason Summers » March 9th, 2010, 8:13 pm

Can anyone find a custom p6 sparker to complete this p42 oscillator?

Code: Select all

x = 44, y = 20, rule = B3/S23
9boo22boo$5boobbobo5boo6boo5bobobboo$4bobbobobo5boo6boo5bobobobbo$4bob
obboboo18boobobbobo$3booboobo8bo13bobb3oboo$6bobbooboo3bobo12boobobbo
bbo$3boboobboo5bo3bo10bo5bobboo$oboobobo6bobo3bo10b4obo5bo$3o4bo3bobbo
bo3bo11b4obobbo$bbobb3o3bo5bobo5bo4boo3boobobboo$boobboboo3boo4bo5bobo
5bo3b3obbo$3bobbob4o11bo3bobobbo3bo4b3o$bo5bob4o10bo3bobo6boboboobo$bb
oobbo5bo10bo3bo5boobboobo$bbobbobboboo12bobo3booboobbo$3boob3obbo13bo
8bobooboo$4bobobboboo18boobobbobo$4bobbobobo5boo6boo5bobobobbo$5boobbo
bo5boo6boo5bobobboo$9boo22boo!

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