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Will Shortz Presents the Big, Bad Book of KenKen: 100 Very Hard Logic Puzzles That Make You ...
by Shortz, Will, Miyamoto, Tet...
ISBN: 9780312654283
List Price: $7.99
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Will Shortz Presents I Can Kenken! Volume 1: 75 Puzzles for Having Fun with Math
by Nextoy Staff, Shortz, Will,...
ISBN: 9780312546410