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

This Sudoku Puzzle has 60 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), undefined, Locked Candidates Type 2 (Claiming), Turbot Fish, Empty Rectangle, Hidden Rectangle techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 2 / Column 4 → 2 (Naked Single)
2. Row 2 / Column 5 → 3 (Naked Single)
3. Row 1 / Column 6 → 6 (Naked Single)
4. Row 4 / Column 5 → 8 (Naked Single)
5. Row 1 / Column 5 → 4 (Naked Single)
6. Row 3 / Column 6 → 9 (Naked Single)
7. Row 3 / Column 4 → 5 (Full House)
8. Row 6 / Column 5 → 9 (Naked Single)
9. Row 5 / Column 5 → 2 (Naked Single)
10. Row 6 / Column 4 → 1 (Naked Single)
11. Row 4 / Column 6 → 3 (Full House)
12. Row 8 / Column 5 → 6 (Naked Single)
13. Row 9 / Column 5 → 7 (Full House)
14. Row 6 / Column 9 → 7 (Hidden Single)
15. Row 1 / Column 7 → 5 (Hidden Single)
16. Row 1 / Column 2 → 3 (Hidden Single)
17. Locked Candidates Type 1 (Pointing): 8 in b4 => r5c789<>8
18. 2-String Kite: 6 in r6c2,r7c9 (connected by r5c9,r6c7) => r7c2<>6
19. Locked Candidates Type 2 (Claiming): 6 in c2 => r5c13<>6
20. XY-Wing: 6/8/1 in r1c3,r39c1 => r789c3<>1
21. Turbot Fish: 1 r2c7 =1= r2c2 -1- r7c2 =1= r9c1 => r9c7<>1
22. Empty Rectangle: 1 in b6 (r9c18) => r5c1<>1
23. XY-Wing: 1/6/8 in r15c9,r6c7 => r3c7<>8
24. Hidden Rectangle: 1/5 in r4c18,r5c18 => r5c8<>1
25. XY-Wing: 3/5/8 in r35c8,r5c1 => r3c1<>8
26. Row 3 / Column 1 → 6 (Naked Single)
27. Row 9 / Column 1 → 1 (Naked Single)
28. Row 4 / Column 1 → 5 (Naked Single)
29. Row 5 / Column 1 → 8 (Full House)
30. Row 5 / Column 8 → 5 (Hidden Single)
31. Row 5 / Column 7 → 3 (Hidden Single)
32. Row 3 / Column 7 → 7 (Naked Single)
33. Row 2 / Column 7 → 1 (Naked Single)
34. Row 2 / Column 2 → 7 (Full House)
35. Row 3 / Column 3 → 8 (Naked Single)
36. Row 1 / Column 3 → 1 (Full House)
37. Row 1 / Column 9 → 8 (Full House)
38. Row 3 / Column 8 → 3 (Full House)
39. Row 5 / Column 3 → 9 (Naked Single)
40. Row 8 / Column 3 → 2 (Naked Single)
41. Row 8 / Column 6 → 1 (Naked Single)
42. Row 7 / Column 6 → 2 (Full House)
43. Row 8 / Column 8 → 9 (Full House)
44. Row 9 / Column 3 → 6 (Naked Single)
45. Row 9 / Column 8 → 8 (Naked Single)
46. Row 7 / Column 3 → 4 (Naked Single)
47. Row 4 / Column 3 → 7 (Full House)
48. Row 7 / Column 2 → 9 (Full House)
49. Row 6 / Column 8 → 4 (Naked Single)
50. Row 4 / Column 8 → 1 (Full House)
51. Row 4 / Column 2 → 4 (Full House)
52. Row 7 / Column 7 → 6 (Naked Single)
53. Row 9 / Column 4 → 9 (Naked Single)
54. Row 9 / Column 7 → 2 (Full House)
55. Row 7 / Column 4 → 8 (Full House)
56. Row 6 / Column 7 → 8 (Full House)
57. Row 6 / Column 2 → 6 (Full House)
58. Row 5 / Column 9 → 6 (Full House)
59. Row 7 / Column 9 → 1 (Full House)
60. Row 5 / Column 2 → 1 (Full House)