Medium
Puzzle
4
5
8
5
3
9
2
8
6
1
3
9
2
9
7
4
8
9
2
6
8
4
3
5
Logic required
Locked candidates
Hardest technique: Box/Line Reduction
In this puzzle
- 39 Naked Single
- 39 Hidden Single
- 12 Pointing
- 17 Box/Line Reduction
- 10 Naked Pair
- 39 Hidden Pair
- 18 Naked Triple
- 29 Hidden Triple
- 19 Naked Quad
- 13 Hidden Quad
- 8 X-Wing
- 4 Swordfish
- 6 Jellyfish
- 2 Skyscraper
- 5 Two-String Kite
- 7 Simple Colouring
- 8 Empty Rectangle
- 11 Y-Wing
- 2 XYZ-Wing
- 4 W-Wing
- 56 WXYZ-Wing
Solution
Solve the puzzle to reveal the solution.