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Sudoku Patterns

|| Paperback || Aad Thoen || Brave New Books

No, not another set of sudoku puzzles, not even exotic ones. This time a book about patterns in the finished sudoku and its many aspects: symmetry, trios, diagonals, shiftings, locations, tournaments, magic, even–odd and a lot more fanciful things. You can marvel at the many beautiful sudokus and be challenged to do better. Become a sudoku pattern player!

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Facets of Pentominoes

|| Paperback || Aad Thoen e.a. || Brave New Books

With three of the pentomino letters you can make FUN. With all twelve pentominoes you can make a lot more fun. This exceptional book abounds with fanciful congruences, enclosures, tilings and a host of combinatorial squares: ConMagic, EyeMagic, GeoMagic and SymMagic. Many of the results are far from trivial, obtained by extensive research and programming. Their complete uselessness and beauty compete fiercely with each other. Almost every page bears witness to that by colourful figures. You a...