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Amusements in Mathematics by Henry Ernest Dudeney

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Amusements in Mathematics

Amusements in Mathematics .............................................................................................. 2

Units Abbreviation and Conversion.................................................................................... 4

Preface................................................................................................................................. 5

Arithmetical And Algebraical Problems............................................................................. 6

MONEY PUZZLES........................................................................................................ 6

AGE AND KINSHIP PUZZLES.................................................................................. 17

CLOCK PUZZLES. ...................................................................................................... 25

LOCOMOTION AND SPEED PUZZLES................................................................... 28

DIGITAL PUZZLES. ....................................................................................................... 30

VARIOUS ARITHMETICAL AND ALGEBRAICAL PROBLEMS......................... 37

Geometrical Problems....................................................................................................... 54

DISSECTION PUZZLES. ............................................................................................ 54

GREEK CROSS PUZZLES. ........................................................................................ 55

VARIOUS DISSECTION PUZZLES. ......................................................................... 62

VARIOUS GEOMETRICAL PUZZLES. .................................................................... 74

Points And Lines Problems............................................................................................... 83

Moving Counter Problems ................................................................................................ 86

Unicursal And Route Problems ........................................................................................ 97

Combination And Group Problems ................................................................................ 104

Chessboard Problems...................................................................................................... 115

THE CHESSBOARD. ................................................................................................ 115

STATICAL CHESS PUZZLES.................................................................................. 118

THE GUARDED CHESSBOARD............................................................................. 126

NON-ATTACKING CHESSBOARD ARRANGEMENTS. ................................. 127

THE TWO PIECES PROBLEM. ........................................................................... 128

DYNAMICAL CHESS PUZZLES. ........................................................................... 129

Measuring, Weighing, And Packing Puzzles.................................................................. 142

Crossing River Problems ................................................................................................ 146

Problems Concerning Games.......................................................................................... 149

Puzzle Games.................................................................................................................. 154

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