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

This Sudoku Puzzle has 62 steps and it is solved using Hidden Single, Naked Single, Naked Pair, undefined, Swordfish, Locked Candidates Type 2 (Claiming), Naked Triple, Full House techniques.

Try To Solve This Puzzle

Solution Steps:

1. Row 6 / Column 2 → 1 (Hidden Single)
2. Row 2 / Column 3 → 3 (Hidden Single)
3. Row 2 / Column 9 → 9 (Naked Single)
4. Row 3 / Column 9 → 7 (Naked Single)
5. Row 9 / Column 2 → 6 (Hidden Single)
6. Naked Pair: 2,6 in r2c7,r3c8 => r1c78<>2
7. X-Wing: 3 c49 r59 => r5c7,r9c58<>3
8. X-Wing: 5 r39 c35 => r7c5<>5
9. X-Wing: 6 r34 c48 => r25c4,r6c8<>6
10. Row 2 / Column 4 → 4 (Naked Single)
11. Swordfish: 2 r349 c238 => r1c2,r8c3<>2
12. Naked Pair: 4,8 in r7c2,r8c3 => r78c1,r9c3<>4, r78c1<>8
13. Locked Candidates Type 2 (Claiming): 8 in c1 => r4c23,r5c3<>8
14. Naked Triple: 2,4,9 in r4c23,r5c3 => r56c1<>4
15. Row 1 / Column 1 → 4 (Hidden Single)
16. Row 1 / Column 2 → 9 (Naked Single)
17. Row 1 / Column 5 → 7 (Naked Single)
18. Row 1 / Column 6 → 2 (Naked Single)
19. Row 4 / Column 4 → 7 (Hidden Single)
20. Row 4 / Column 8 → 6 (Hidden Single)
21. Row 3 / Column 8 → 2 (Naked Single)
22. Row 2 / Column 7 → 6 (Naked Single)
23. Row 3 / Column 2 → 8 (Naked Single)
24. Row 2 / Column 6 → 5 (Naked Single)
25. Row 2 / Column 1 → 2 (Full House)
26. Row 3 / Column 3 → 5 (Full House)
27. Row 7 / Column 2 → 4 (Naked Single)
28. Row 4 / Column 2 → 2 (Full House)
29. Row 3 / Column 5 → 9 (Naked Single)
30. Row 3 / Column 4 → 6 (Full House)
31. Row 8 / Column 1 → 7 (Naked Single)
32. Row 9 / Column 3 → 2 (Naked Single)
33. Row 8 / Column 3 → 8 (Naked Single)
34. Row 7 / Column 1 → 5 (Full House)
35. Row 7 / Column 5 → 3 (Naked Single)
36. Row 7 / Column 8 → 9 (Naked Single)
37. Row 9 / Column 4 → 1 (Naked Single)
38. Row 7 / Column 6 → 7 (Naked Single)
39. Row 7 / Column 7 → 8 (Full House)
40. Row 8 / Column 4 → 9 (Naked Single)
41. Row 5 / Column 4 → 3 (Full House)
42. Row 9 / Column 8 → 4 (Naked Single)
43. Row 8 / Column 6 → 4 (Naked Single)
44. Row 9 / Column 5 → 5 (Full House)
45. Row 9 / Column 9 → 3 (Full House)
46. Row 6 / Column 8 → 3 (Naked Single)
47. Row 1 / Column 8 → 1 (Full House)
48. Row 1 / Column 7 → 3 (Full House)
49. Row 8 / Column 9 → 1 (Naked Single)
50. Row 8 / Column 7 → 2 (Full House)
51. Row 6 / Column 7 → 9 (Naked Single)
52. Row 5 / Column 7 → 1 (Full House)
53. Row 6 / Column 6 → 6 (Naked Single)
54. Row 5 / Column 6 → 9 (Full House)
55. Row 6 / Column 1 → 8 (Naked Single)
56. Row 5 / Column 1 → 6 (Full House)
57. Row 6 / Column 5 → 4 (Full House)
58. Row 4 / Column 5 → 8 (Full House)
59. Row 5 / Column 3 → 4 (Naked Single)
60. Row 4 / Column 3 → 9 (Full House)
61. Row 4 / Column 9 → 4 (Full House)
62. Row 5 / Column 9 → 8 (Full House)