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

This Sudoku Puzzle has 51 steps and it is solved using Locked Candidates Type 1 (Pointing), Naked Triple, undefined, Naked Pair, Naked Single, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Locked Candidates Type 1 (Pointing): 3 in b9 => r7c45<>3
2. Naked Triple: 3,4,9 in r4c5,r5c46 => r4c6<>3, r4c6,r6c4<>4
3. X-Wing: 1 r17 c24 => r2c4<>1
4. Naked Triple: 2,4,6 in r268c4 => r157c4<>4
5. X-Wing: 2 r34 c68 => r2c6,r6c8<>2
6. X-Wing: 6 c47 r68 => r6c8,r8c6<>6
7. Naked Pair: 4,7 in r6c28 => r6c7<>4, r6c7<>7
8. Naked Triple: 3,4,7 in r167c8 => r3c8<>3, r3c8<>7, r4c8<>4
9. Locked Candidates Type 1 (Pointing): 3 in b3 => r1c45<>3
10. Row 1 / Column 4 → 1 (Naked Single)
11. Row 7 / Column 4 → 9 (Naked Single)
12. Row 5 / Column 4 → 3 (Naked Single)
13. Row 5 / Column 6 → 4 (Naked Single)
14. Row 2 / Column 6 → 7 (Naked Single)
15. Row 4 / Column 5 → 9 (Naked Single)
16. Row 8 / Column 6 → 7 (Naked Single)
17. Row 7 / Column 5 → 4 (Naked Single)
18. Row 1 / Column 5 → 5 (Naked Single)
19. Row 9 / Column 5 → 3 (Full House)
20. Row 3 / Column 5 → 3 (Full House)
21. Row 7 / Column 2 → 1 (Naked Single)
22. Row 9 / Column 3 → 4 (Full House)
23. Row 8 / Column 4 → 6 (Naked Single)
24. Row 1 / Column 2 → 7 (Naked Single)
25. Row 3 / Column 6 → 2 (Naked Single)
26. Row 9 / Column 9 → 6 (Naked Single)
27. Row 9 / Column 6 → 1 (Full House)
28. Row 6 / Column 4 → 2 (Naked Single)
29. Row 2 / Column 4 → 4 (Full House)
30. Row 4 / Column 6 → 6 (Full House)
31. Row 8 / Column 7 → 4 (Naked Single)
32. Row 3 / Column 3 → 5 (Naked Single)
33. Row 2 / Column 3 → 1 (Full House)
34. Row 6 / Column 2 → 4 (Naked Single)
35. Row 4 / Column 2 → 5 (Full House)
36. Row 3 / Column 8 → 6 (Naked Single)
37. Row 6 / Column 7 → 6 (Naked Single)
38. Row 6 / Column 8 → 7 (Full House)
39. Row 2 / Column 9 → 5 (Naked Single)
40. Row 2 / Column 7 → 2 (Full House)
41. Row 4 / Column 8 → 2 (Naked Single)
42. Row 1 / Column 7 → 3 (Naked Single)
43. Row 1 / Column 8 → 4 (Full House)
44. Row 3 / Column 9 → 7 (Full House)
45. Row 7 / Column 8 → 3 (Full House)
46. Row 7 / Column 7 → 7 (Full House)
47. Row 5 / Column 7 → 5 (Full House)
48. Row 4 / Column 3 → 3 (Naked Single)
49. Row 5 / Column 3 → 7 (Full House)
50. Row 4 / Column 9 → 4 (Full House)
51. Row 5 / Column 9 → 9 (Full House)