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🕸Fergus Duniho wrote on Wed, Nov 13, 2019 03:02 PM UTC:

I hadn't thought of that interpretation, but it is more computationally complex than the ones I was considering. It would involve testing a position for legal moves, then trying out each legal move and testing it for legal moves until at least one legal move is found. Also, I normally handle checking for stalemate in the Post-Game sections to minimize its computational cost, but if a move were to be illegal if it had no follow-up move, the code would have to check for double levels of stalemate in the Post-Move sections, and that would significantly raise the computational load of the code.

The two interpretations I was considering were to allow only one move when no second move is legally available or to end the game in a draw when a second move is not available. Another alternative would be to end the game as a loss for the player who does not have a second move available. This would discourage players from deliberately stalemating themselves just as well as making it illegal would, and it could be done with far less computational complexity.


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