Need help for proving a problem's solution

Правка en2, от coyorkdow, 2019-11-01 05:40:25

While I'm trying to slove this problem 120E - Поставь Коня! . 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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en2 Английский coyorkdow 2019-11-01 05:40:25 2 Tiny change: 'While I trying to' -> 'While I'm trying to'
en1 Английский coyorkdow 2019-11-01 05:39:19 287 Initial revision (published)