The Diamond 16 Puzzle

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only in this directory Mathematical Games and Problems Chaos and Fractals@ (191) Combinatorics@ (179) Game Theory@ (97) Alphametics and Cryptarithms (5) Competitions (32) Cryptarithms and Alphametics (4) Exercises (9) Famous Problems (37) Flexagons (2) Magic Squares@ (11) Nim@ (5) Online (3) Polyominoes (15) Problem of the Week (3) Tessellations (31)	The Diamond 16 Puzzle The classic 15 puzzle updated for the 21st century -- New permutations and striking graphics with surprising symmetry properties.