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four left in six generations

There are two more glider situations in the sixth generation. Both are based on the T5 triangle as a base piece, but since its use with the two gliders are diagonal reflections of one another, there probably isn't a nice coexistence situation in which one can overtake the other and produce nice simple collisiona. That's something that still has to be tried, however.

In the first combination, there is a shift of four cells after six generations. The two tiles needed for the two species are are:

 
Figure 20: One species moves 4 left every six generations against a background generated by the other.  

To tile the plane and thus construct an evolution, make diagonals from either tile:

 
Figure 21: The second species is the glider, moving against a background established by the first.  

 
Figure 22: The first species is the glider, moving against a background established by the second.  

 
Figure 23: One species moves 4 left every six generations against a background generated by the other.  



Harold V. McIntosh
E-mail:mcintosh@servidor.unam.mx