Absolutely Nasty® Sudoku Level 4

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.)

• Author
• Frank Longo

• Format
• paperback

• Pages
• 160

• Publisher
• Puzzlewright

• Language
• english

• ISBN
• 9781402743993

• Release date
• 2007