Mr. Conway in 50 lines of code (Posting On Python-List Prohibited)

[Lawrence D’Oliveiro]

On Sunday, December 31, 2017 at 11:13:41 PM UTC+13, Wu Xi wrote:
>  yield x + 1 , y
>  yield x - 1 , y
>  yield x     , y + 1
>  yield x     , y - 1                 #    this is proof that life can emerge inside of computers and cellular automatons,
>   
>  yield x + 1 , y + 1                 #    and evolve through memory, attack other cells and morph into toads, pulsars, etc..
>  yield x + 1 , y - 1
>  yield x - 1 , y + 1                 #    spray your memory with space alien patterns and life evolution will start in your machine !
>  yield x - 1 , y - 1

    for i in range(-1, 2) :
        for j in range(-1, 2) :
            if i != j :
                yield x + i, y + j
            #end if
        #end for
    #end for

which is half the number of lines of code.