321.--THE ROOK'S JOURNEY.

From Amusements in Mathematics by Henry Ernest Dudeney.

[Illustration]

I show the route in the diagram. It will be seen that the tenth move lands us at the square marked "10," and that the last move, the twenty-first, brings us to a halt on square "21."

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321.--THE ROOK'S JOURNEY.: Amusements in Mathematics by Henry Ernest Dudeney | amphi