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.)
Frank Longocreates, fact-checks, and edits crossword puzzles, and also specializes in sudoku, having published more than 150 sudoku books. His books have sold more than 5 million copies. His wide array of titles encompasses both standard and variety sudoku puzzles, and includesBeyond Black Belt Sudoku, Way Beyond Black Belt Sudoku,The Nastiest Sudoku Book Ever,Pause for Puzzles: Sudoku for Mindfulness, Sip & Solve Simple Sudoku, Blockbuster Book of Sudoku,Puzzlewright Guide to Solving Sudoku(with Peter Gordon), and Skill Builder Sudoku (with Peter Gordon).
Betyg & recensioner
5/5
Absolutely Nasty® Sudoku Level 4 - Frank Longo - Häftad | Bokus