Isaacs's Iris
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Isaacs's Iris
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IPP 21 Tokyo 2001 Exchange Puzzle
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Time
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| Description | |
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A puzzle designed by George Miller based on an idea by Donald Knuth conveyed to George by Stan Isaac's
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| Goal | |
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Put the pieces together to form a disc like the iris of an eye. Once you've done that, put it together again alternating the colours. How many solutions are there for the disc? how many are there with alternating colours? Each piece has a number or a letter on it. What do those numbers represent?
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