This topic is for collecting guns in Life-like cellular automata. Of particular interest are those rules with B3 and without B0 or B2.
The known guns in Life-like cellular automata (without B0 or B2) are attached in "alienguns.zip". This collection includes the patterns from Jason Summers' alien guns collection (found
here), as well as the following five additional guns:
Code: Select all
b_3____+s__23__6_+
b_3____+s__23__67+
b_3____8s__23_____
b_3___7+s__23____8
b_3___7+s__23___78
Note that although b_3___7+s__23____8 and b_3___7+s__23___78 are similar, they use a slightly different reflector.
For rules with B2, I wish to be somewhat more systematic. There are two small spaceships that work in a large number of rules:
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x = 3, y = 11, rule = B2/S
bo$o$o$bo4$2bo$o$o$2bo!
p4 and p5 guns can often be found for these spaceships using tools such as Win Life Search, and it can be difficult to keep track of what rules are covered. For this reason, I would like people to post collections of such guns that cover a particular rule space. For example, the attached collection, "p5_guns.zip" contains guns for each rule in the space B2/S2 - B28/S2345678 except for rules with all of S2345 (several of these guns also work in rules with B7 and B6). It would be acceptable, however, to post a single such low-period gun if it is in a particularly difficult rule.
Edit: I forgot to include a gun found by Extrementhusiast (see
here). I have added now as b_3____+s__23__6_+.lif.