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    OlympiadMediumCombinatorics7–9

    A knight stands on the corner square of a chessboard. What is the smallest number of knight moves that brings it to the square diagonally next to that corner?

    Um cavalo está na casa de canto de um tabuleiro de xadrez. Qual é o menor número de movimentos de cavalo que o leva à casa diagonalmente vizinha desse canto?

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    Solution

    Step 1 of 3

    1. 1.A knight move always changes the colour of the square, while the corner and its diagonal neighbour share a colour, so the number of moves is even.