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