by Frank Longo (Author)
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.)
Number of Pages: 160
Dimensions: 0.5 x 8.9 x 6.5 IN
Illustrated: Yes
Publication Date: March 01, 2007