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

This Sudoku Puzzle has 64 steps and it is solved using Naked Single, Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Naked Pair, undefined, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 6 / Column 7 → 3 (Naked Single)
2. Row 4 / Column 2 → 3 (Hidden Single)
3. Row 6 / Column 1 → 7 (Hidden Single)
4. Row 5 / Column 4 → 7 (Hidden Single)
5. Row 8 / Column 5 → 1 (Hidden Single)
6. Row 8 / Column 7 → 8 (Hidden Single)
7. Row 5 / Column 2 → 4 (Hidden Single)
8. Row 9 / Column 1 → 1 (Hidden Single)
9. Row 8 / Column 4 → 4 (Hidden Single)
10. Row 2 / Column 5 → 6 (Hidden Single)
11. Row 2 / Column 7 → 9 (Naked Single)
12. Row 3 / Column 7 → 7 (Hidden Single)
13. Row 3 / Column 6 → 4 (Hidden Single)
14. Row 8 / Column 3 → 9 (Hidden Single)
15. Row 3 / Column 1 → 9 (Hidden Single)
16. Row 2 / Column 8 → 4 (Hidden Single)
17. Locked Candidates Type 1 (Pointing): 6 in b1 => r789c2<>6
18. Locked Candidates Type 1 (Pointing): 2 in b8 => r9c23<>2
19. Locked Candidates Type 2 (Claiming): 8 in c2 => r9c3<>8
20. Locked Candidates Type 2 (Claiming): 5 in c5 => r4c46<>5
21. Naked Pair: 5,8 in r7c24 => r7c689<>5, r7c6<>8
22. Row 7 / Column 6 → 6 (Naked Single)
23. 2-String Kite: 5 in r1c6,r7c2 (connected by r7c4,r9c6) => r1c2<>5
24. Row 1 / Column 2 → 6 (Naked Single)
25. Row 1 / Column 7 → 1 (Naked Single)
26. Row 4 / Column 7 → 6 (Full House)
27. Row 3 / Column 4 → 1 (Hidden Single)
28. Row 7 / Column 8 → 1 (Hidden Single)
29. Row 7 / Column 9 → 9 (Naked Single)
30. Row 5 / Column 9 → 2 (Naked Single)
31. Row 5 / Column 8 → 9 (Naked Single)
32. Row 6 / Column 9 → 4 (Naked Single)
33. Row 4 / Column 9 → 1 (Full House)
34. Row 5 / Column 6 → 8 (Naked Single)
35. Row 5 / Column 1 → 6 (Full House)
36. Row 6 / Column 5 → 5 (Naked Single)
37. Row 4 / Column 5 → 4 (Full House)
38. Row 6 / Column 3 → 2 (Full House)
39. Row 9 / Column 3 → 6 (Hidden Single)
40. Row 3 / Column 8 → 2 (Hidden Single)
41. Row 3 / Column 2 → 5 (Naked Single)
42. Row 3 / Column 9 → 6 (Full House)
43. Row 2 / Column 3 → 8 (Naked Single)
44. Row 2 / Column 1 → 2 (Full House)
45. Row 4 / Column 3 → 5 (Full House)
46. Row 4 / Column 1 → 8 (Full House)
47. Row 8 / Column 1 → 5 (Full House)
48. Row 7 / Column 2 → 8 (Naked Single)
49. Row 7 / Column 4 → 5 (Full House)
50. Row 8 / Column 8 → 6 (Naked Single)
51. Row 8 / Column 9 → 7 (Naked Single)
52. Row 8 / Column 2 → 2 (Full House)
53. Row 9 / Column 2 → 7 (Full House)
54. Row 2 / Column 4 → 3 (Naked Single)
55. Row 2 / Column 9 → 5 (Full House)
56. Row 1 / Column 8 → 3 (Full House)
57. Row 9 / Column 9 → 3 (Full House)
58. Row 9 / Column 8 → 5 (Full House)
59. Row 9 / Column 6 → 2 (Naked Single)
60. Row 9 / Column 4 → 8 (Full House)
61. Row 1 / Column 4 → 9 (Naked Single)
62. Row 1 / Column 6 → 5 (Full House)
63. Row 4 / Column 6 → 9 (Full House)
64. Row 4 / Column 4 → 2 (Full House)