While I trying to slove this problem 120E - Put Knight! . I guessed that the first player always win if the size of chessboard is odd and always lose if is even. And in fact what I guessed is right, but I don't know how to prove it. Can anyone help?
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Need help for proving a problem's solution
While I trying to slove this problem 120E - Put Knight! . I guessed that the first player always win if the size of chessboard is odd and always lose if is even. And in fact what I guessed is right, but I don't know how to prove it. Can anyone help?
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