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

This Sudoku Puzzle has 61 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Skyscraper, undefined techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 4 / Column 9 → 8 (Naked Single)
2. Row 4 / Column 2 → 2 (Naked Single)
3. Row 4 / Column 8 → 3 (Naked Single)
4. Row 4 / Column 4 → 4 (Naked Single)
5. Row 4 / Column 6 → 6 (Full House)
6. Row 9 / Column 9 → 9 (Hidden Single)
7. Row 9 / Column 4 → 7 (Hidden Single)
8. Row 6 / Column 4 → 2 (Hidden Single)
9. Row 9 / Column 7 → 3 (Hidden Single)
10. Row 2 / Column 5 → 4 (Hidden Single)
11. Row 8 / Column 2 → 3 (Hidden Single)
12. Row 9 / Column 1 → 2 (Hidden Single)
13. Row 8 / Column 1 → 9 (Hidden Single)
14. Row 8 / Column 8 → 6 (Hidden Single)
15. Locked Candidates Type 1 (Pointing): 1 in b8 => r356c5<>1
16. Locked Candidates Type 2 (Claiming): 5 in r8 => r79c5<>5
17. Locked Candidates Type 2 (Claiming): 8 in r8 => r79c5<>8
18. Skyscraper: 9 in r1c3,r6c2 (connected by r16c5) => r2c2,r5c3<>9
19. Row 2 / Column 4 → 9 (Hidden Single)
20. Row 6 / Column 2 → 9 (Hidden Single)
21. Row 1 / Column 3 → 9 (Hidden Single)
22. Row 5 / Column 5 → 9 (Hidden Single)
23. Row 5 / Column 6 → 3 (Hidden Single)
24. X-Wing: 1 r26 c68 => r3c6,r79c8<>1
25. Row 9 / Column 5 → 1 (Hidden Single)
26. Row 7 / Column 5 → 6 (Naked Single)
27. Row 9 / Column 3 → 6 (Hidden Single)
28. Row 3 / Column 1 → 6 (Hidden Single)
29. Row 3 / Column 5 → 3 (Hidden Single)
30. Row 1 / Column 1 → 3 (Hidden Single)
31. Row 1 / Column 9 → 7 (Hidden Single)
32. Row 6 / Column 8 → 7 (Hidden Single)
33. Row 6 / Column 1 → 8 (Naked Single)
34. Row 6 / Column 5 → 5 (Naked Single)
35. Row 1 / Column 5 → 8 (Full House)
36. Row 6 / Column 6 → 1 (Full House)
37. Row 1 / Column 7 → 5 (Full House)
38. Row 5 / Column 4 → 8 (Full House)
39. Row 5 / Column 7 → 1 (Naked Single)
40. Row 5 / Column 9 → 5 (Full House)
41. Row 8 / Column 4 → 5 (Naked Single)
42. Row 3 / Column 4 → 1 (Full House)
43. Row 8 / Column 6 → 8 (Full House)
44. Row 3 / Column 9 → 2 (Naked Single)
45. Row 7 / Column 9 → 1 (Full House)
46. Row 3 / Column 7 → 8 (Naked Single)
47. Row 2 / Column 8 → 1 (Full House)
48. Row 7 / Column 7 → 2 (Full House)
49. Row 3 / Column 3 → 7 (Naked Single)
50. Row 3 / Column 6 → 5 (Full House)
51. Row 2 / Column 6 → 7 (Full House)
52. Row 2 / Column 1 → 5 (Naked Single)
53. Row 2 / Column 2 → 8 (Full House)
54. Row 5 / Column 3 → 4 (Naked Single)
55. Row 5 / Column 1 → 7 (Full House)
56. Row 7 / Column 3 → 8 (Full House)
57. Row 7 / Column 1 → 4 (Full House)
58. Row 9 / Column 2 → 5 (Naked Single)
59. Row 7 / Column 2 → 7 (Full House)
60. Row 7 / Column 8 → 5 (Full House)
61. Row 9 / Column 8 → 8 (Full House)