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.)

Item Information Item Information

Format: Trade Paperback
Author: Longo, Frank
ISBN: 9781402743993
Condition: Used
Dimensions: 8.90 x 0.50
Number Of Pages: 160
Publication Year: 2007

Absolutely Nasty(r) Sudoku Level 4

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