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