Hard
Puzzle
3
7
8
1
2
3
5
3
7
4
1
9
6
3
9
1
2
7
2
3
5
6
9
Logic required
Pairs
Hardest technique: Naked Pair
In this puzzle
- 38 Naked Single
- 40 Hidden Single
- 11 Pointing
- 15 Box/Line Reduction
- 15 Naked Pair
- 41 Hidden Pair
- 19 Naked Triple
- 22 Hidden Triple
- 17 Naked Quad
- 13 Hidden Quad
- 5 X-Wing
- 6 Swordfish
- 3 Jellyfish
- 1 Skyscraper
- 1 Two-String Kite
- 4 Simple Colouring
- 2 Empty Rectangle
- 8 Y-Wing
- 2 XYZ-Wing
- 5 W-Wing
- 58 WXYZ-Wing
Solution
Solve the puzzle to reveal the solution.