blah wrote:Well, if they use two different rules for even and odd generations, that's the problem. These rules don't alternate every 2 generations, they oscillate through n generations (n being the number of states). The algorithm I came up with before should work.

Yes understood, many thanks I'm taking a look - this is issue #2 above.

Dave,

For issue #1 above please can you test the following pattern in your Golly:

`#CXRLE Pos=0,0`

x = 5, y = 32, rule = 012/03/23

2A$A9$.2A$.A9$2.2A$2.A9$3.2A$3.A!

The 3 cell groups that start on an odd X coordinate get an extra cell by generation 2 (which is clearly wrong and different than LifeViewer).

`#CXRLE Pos=-1,-1 Gen=2`

x = 7, y = 34, rule = 012/03/23

4B$B2CB$BC.B$3B.A7$.4B$.B2CB$.BC.B$.3B7$2.4B$2.B2CB$2.BC.B$2.3B.A7$3.

4B$3.B2CB$3.BC.B$3.3B!