Buy new: $7.95
57 used and new from $1.50
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First tagged by P. P. Huang
Customer tags: sudoku(17), frank longo(6), number puzzles(5), difficult sudoku(5), puzzle book(4), mensa(3), brain teasers(3), advanced sudoku(2), puzzle, camera lens, difficult, nasty
Review & Description
Top solvers can try their hand at the One-Sided Gordonian Rectangle; Extended Gordonian Rectangle; Gordonian Polygon; and Alternating Digits. (But they can take comfort in knowing that no more than one will occur in any single puzzle.) Read more
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