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