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