8
1
3
2
9
5
2
3
1
7
2
9
1
3
8
7
6
8
1
2
3
9
5
3
9
7
6
1
2
1
2
4
3
9
7
6
2
7
3
1
5
8
3
5
7
9
1
2
5
1
2
3
7

This Sudoku Puzzle has 37 steps and it is solved using Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), undefined, Empty Rectangle, Naked Single, Full House techniques.

Try To Solve This Puzzle

Solution Steps:

1. Locked Candidates Type 1 (Pointing): 5 in b3 => r3c2<>5
2. Locked Candidates Type 2 (Claiming): 6 in r7 => r8c4<>6
3. Locked Candidates Type 2 (Claiming): 8 in c4 => r7c5<>8
4. 2-String Kite: 4 in r2c6,r5c3 (connected by r5c5,r6c6) => r2c3<>4
5. W-Wing: 4/5 in r3c8,r6c2 connected by 5 in r5c38 => r3c2<>4
6. XY-Wing: 5/8/4 in r35c8,r5c5 => r3c5<>4
7. XY-Wing: 6/8/4 in r8c49,r9c7 => r8c8<>4
8. 2-String Kite: 4 in r1c4,r7c8 (connected by r1c7,r3c8) => r7c4<>4
9. Empty Rectangle: 4 in b2 (r8c14) => r2c1<>4
10. Row 2 / Column 1 → 6 (Naked Single)
11. Row 2 / Column 3 → 5 (Naked Single)
12. Row 5 / Column 3 → 4 (Naked Single)
13. Row 6 / Column 2 → 5 (Full House)
14. Row 9 / Column 3 → 6 (Full House)
15. Row 9 / Column 7 → 4 (Full House)
16. Row 1 / Column 7 → 6 (Full House)
17. Row 1 / Column 4 → 4 (Full House)
18. Row 5 / Column 5 → 8 (Naked Single)
19. Row 5 / Column 8 → 5 (Full House)
20. Row 6 / Column 9 → 8 (Full House)
21. Row 6 / Column 6 → 4 (Full House)
22. Row 2 / Column 6 → 8 (Full House)
23. Row 3 / Column 9 → 5 (Naked Single)
24. Row 3 / Column 8 → 4 (Full House)
25. Row 8 / Column 9 → 6 (Full House)
26. Row 8 / Column 4 → 8 (Naked Single)
27. Row 7 / Column 4 → 6 (Full House)
28. Row 7 / Column 5 → 4 (Full House)
29. Row 2 / Column 5 → 7 (Naked Single)
30. Row 2 / Column 2 → 4 (Full House)
31. Row 3 / Column 5 → 6 (Full House)
32. Row 3 / Column 1 → 9 (Naked Single)
33. Row 3 / Column 2 → 7 (Full House)
34. Row 7 / Column 2 → 9 (Full House)
35. Row 8 / Column 1 → 4 (Full House)
36. Row 8 / Column 8 → 9 (Full House)
37. Row 7 / Column 8 → 8 (Full House)