Pat'sBlog
The mathematical (and other) thoughts of a (now retired) math teacher,
Showing posts with label
Sam Loyd
.
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Showing posts with label
Sam Loyd
.
Show all posts
Wednesday, 13 May 2009
The Fifteen Puzzle
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Before there was Sudoku, before there was Rubik's Cube, there was the fifteen puzzle. In 1880 it was THE hot game to play, and seeming...
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