>> Yeah.  An eye point is defined as an empty point where all four 

>> neighbors are the same chain.



where "all four" gets modified to "all three" or "all two" on the first line

or corner respectively?



won't you miss any comb shape?



ooooo

oo##o

##.#o

#.##o

o###o

ooooo



s.



  This prevents weak combos of false 

>> eyes, but does allow it to miss one kind of life. 

> Do you mean that your program would fill black eyes there:

>

> #.#O.

> .##OO

> ##OO.

> OOOOO

>

> ? This sounds like a really very very bad idea. But I may have 

> misunderstood.



Nah, you understood correctly.  I've never liked the idea that normal MC 

engines will never defend #'s position like below if false eyes are 

never filled.  2nd line creeps into territory seem like a fairly common 

situation and not defending them seems like quite a problem.  The common 

cases with life that I miss occur when there are two false eyes that 

share the same two neighboring chains.  Maybe I should upgrade my eye 

detection to find that...



##O

.#O

##O

.#O

##O

#OO

.#O

##O

#OO

.#O

##O

.OO



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