Tough Sudoku #368123 | Peak Sudoku

Play Now

Beginner Gentle Easy Medium Tricky Hard Tough Expert Extreme Diabolical

Make a BookFREE Make a Sudoku Import Text/Image

Learn Techniques

81 leftNo cell selected

Puzzle: #368123
Difficulty: Tough(67/100)SE 4
Clues: 28
Symmetry: 180° rotational

1–9 writes into the selected cells.

Techniques in this puzzle5

Naked Single×7 Hidden Single×4 Pointing Pair×1 Naked Pair×1 Skyscraper×1

© 2026 Peak Sudoku·Contact·PrivacyFree to play. No ads.

Tough Sudoku #368123 | Peak Sudoku