@RULE CheckerOut

rabbit, 2026-01-12

A rule that imperfectly emulates Conway's Game of Life if the live cells provided form a checkerboard between States 1 and 2.

A single line has been inserted to modify the rule's behaviour.

@TABLE
n_states:3
neighborhood:Moore
symmetries:rotate4reflect

var a1 = {0, 1, 2}
var a2 = a1
var a3 = a1
var a4 = a1
var a5 = a1
var a6 = a1
var a7 = a1
var a8 = a1
var a9 = a1

var l1 = {1, 2}
var l2 = l1
var l3 = l1
var l4 = l1
var l5 = l1

 0,l1, 1,l2, 1,l3,l4,a1,l5, 2 # Remove this transition for normal Life.

 0, 2, 1, 2, 0, 0, 0, 0, 0, 1
 0, 0, 1, 0, 1, 0, 1, 0, 0, 1
 0, 2, 0, 2, 0, 2, 0, 0, 0, 1
 0, 0, 1, 2, 1, 0, 0, 0, 0, 1
 0, 2, 0, 2, 1, 0, 0, 0, 0, 1
 0, 2, 0, 2, 0, 0, 1, 0, 0, 1
 0, 2, 1, 0, 1, 0, 0, 0, 0, 1
 0, 2, 1, 0, 0, 0, 1, 0, 0, 1
 0, 2, 1, 0, 0, 2, 0, 0, 0, 1
 0, 2, 0, 0, 1, 0, 1, 0, 0, 1

 0, 1, 2, 1, 0, 0, 0, 0, 0, 2
 0, 0, 2, 0, 2, 0, 2, 0, 0, 2
 0, 1, 0, 1, 0, 1, 0, 0, 0, 2
 0, 0, 2, 1, 2, 0, 0, 0, 0, 2
 0, 1, 0, 1, 2, 0, 0, 0, 0, 2
 0, 1, 0, 1, 0, 0, 2, 0, 0, 2
 0, 1, 2, 0, 2, 0, 0, 0, 0, 2
 0, 1, 2, 0, 0, 0, 2, 0, 0, 2
 0, 1, 2, 0, 0, 1, 0, 0, 0, 2
 0, 1, 0, 0, 2, 0, 2, 0, 0, 2

l1,l2,l3, 0, 0, 0, 0, 0, 0,l1
l1, 0,l2, 0,l3, 0, 0, 0, 0,l1
l1,l2, 0,l3, 0, 0, 0, 0, 0,l1
l1,l2, 0, 0, 0,l3, 0, 0, 0,l1
l1,l2, 0, 0,l3, 0, 0, 0, 0,l1
l1, 0,l2, 0, 0, 0,l3, 0, 0,l1

l1,l2,l3,l4, 0, 0, 0, 0, 0,l1
l1, 0,l2, 0,l3, 0,l4, 0, 0,l1
l1,l2, 0,l3, 0,l4, 0, 0, 0,l1
l1, 0,l2,l3,l4, 0, 0, 0, 0,l1
l1,l2, 0,l3,l4, 0, 0, 0, 0,l1
l1,l2, 0,l3, 0, 0,l4, 0, 0,l1
l1,l2,l3, 0,l4, 0, 0, 0, 0,l1
l1,l2,l3, 0, 0, 0,l4, 0, 0,l1
l1,l2,l3, 0, 0,l4, 0, 0, 0,l1
l1,l2, 0, 0,l3, 0,l4, 0, 0,l1

a1,a2,a3,a4,a5,a6,a7,a8,a9, 0