294.--THE CHESSBOARD SENTENCE.

From Amusements in Mathematics by Henry Ernest Dudeney.

+===I===I===I===I=======I=======+ | |:::| |:::| ::::| ::::| I===I...I===I...I...+===I...+===I |:::| ::::: |:::| ::::: | |...|...+===I...I...+===+...+===I | |:::| |:::| ::::| ::::| |...+===+...+===I===I===I=======I |:::: ::::: |:::| ::::: | I===========I===I...I===I===+...| | ::::: |:::| |:::| |:::| |...+===+...|...|...|...I===+...| |:::| |:::| |:::| |:::: | |...|...|...|...I===+...+===+...| | |:::| |:::| ::::: |:::| I===+...+===I...+=======I===+...| |:::: ::::| ::::: |:::: | +===========I===================+

The pieces may be fitted together, as shown in the illustration, to form a perfect chessboard.

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294.--THE CHESSBOARD SENTENCE.: Amusements in Mathematics by Henry Ernest Dudeney | amphi