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