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

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

Try To Solve This Puzzle

## Solution Steps:

1. Row 5 / Column 1 → 6 (Naked Single)
2. Row 5 / Column 2 → 4 (Hidden Single)
3. Row 8 / Column 5 → 4 (Hidden Single)
4. Row 2 / Column 3 → 4 (Hidden Single)
5. Row 9 / Column 8 → 1 (Hidden Single)
6. Row 3 / Column 7 → 1 (Hidden Single)
7. Row 3 / Column 4 → 4 (Hidden Single)
8. Row 3 / Column 2 → 6 (Hidden Single)
9. Row 1 / Column 6 → 1 (Hidden Single)
10. Row 7 / Column 8 → 6 (Hidden Single)
11. Row 1 / Column 2 → 5 (Hidden Single)
12. Row 1 / Column 4 → 8 (Hidden Single)
13. Row 9 / Column 6 → 8 (Hidden Single)
14. Row 8 / Column 3 → 6 (Hidden Single)
15. Row 9 / Column 4 → 6 (Hidden Single)
16. Row 6 / Column 6 → 6 (Hidden Single)
17. Row 2 / Column 5 → 6 (Hidden Single)
18. Row 4 / Column 9 → 6 (Hidden Single)
19. Row 2 / Column 9 → 5 (Hidden Single)
20. Locked Candidates Type 1 (Pointing): 2 in b4 => r7c3<>2
21. Locked Candidates Type 1 (Pointing): 3 in b9 => r8c1<>3
22. Locked Candidates Type 1 (Pointing): 7 in b9 => r3c9<>7
23. Locked Candidates Type 2 (Claiming): 7 in c2 => r7c13,r8c1<>7
24. Row 8 / Column 1 → 5 (Naked Single)
25. 2-String Kite: 2 in r2c4,r5c8 (connected by r2c7,r3c8) => r5c4<>2
26. W-Wing: 9/2 in r2c7,r6c9 connected by 2 in r35c8 => r3c9,r6c7<>9
27. Row 3 / Column 1 → 9 (Hidden Single)
28. Row 2 / Column 1 → 7 (Naked Single)
29. Row 1 / Column 3 → 3 (Full House)
30. Row 1 / Column 8 → 7 (Full House)
31. Row 2 / Column 4 → 2 (Naked Single)
32. Row 2 / Column 7 → 9 (Full House)
33. Row 7 / Column 3 → 1 (Naked Single)
34. Row 7 / Column 1 → 3 (Naked Single)
35. Row 6 / Column 9 → 9 (Hidden Single)
36. XY-Wing: 2/7/9 in r58c6,r7c4 => r5c4,r7c6<>9
37. Row 5 / Column 4 → 3 (Naked Single)
38. Row 4 / Column 4 → 7 (Naked Single)
39. Row 7 / Column 4 → 9 (Full House)
40. Row 5 / Column 8 → 2 (Naked Single)
41. Row 3 / Column 8 → 3 (Full House)
42. Row 5 / Column 6 → 9 (Full House)
43. Row 3 / Column 9 → 2 (Full House)
44. Row 4 / Column 3 → 2 (Naked Single)
45. Row 6 / Column 3 → 7 (Full House)
46. Row 6 / Column 7 → 8 (Naked Single)
47. Row 4 / Column 7 → 3 (Full House)
48. Row 8 / Column 7 → 2 (Full House)
49. Row 9 / Column 9 → 7 (Naked Single)
50. Row 8 / Column 9 → 3 (Full House)
51. Row 8 / Column 6 → 7 (Full House)
52. Row 9 / Column 2 → 2 (Full House)
53. Row 7 / Column 2 → 7 (Full House)
54. Row 4 / Column 5 → 1 (Naked Single)
55. Row 4 / Column 1 → 8 (Full House)
56. Row 6 / Column 1 → 1 (Full House)
57. Row 6 / Column 5 → 2 (Full House)
58. Row 3 / Column 6 → 5 (Naked Single)
59. Row 3 / Column 5 → 7 (Full House)
60. Row 7 / Column 5 → 5 (Full House)
61. Row 7 / Column 6 → 2 (Full House)