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

This Sudoku Puzzle has 65 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Single, Locked Candidates Type 2 (Claiming), Naked Triple, Full House techniques.

Naked Single Explanation
Hidden Single Explanation
Locked Candidates Explanation
Locked Candidates Explanation
Full House Explanation
Try To Solve This Puzzle

Solution Steps:

  1. Row 2 / Column 1 → 2 (Hidden Single)
  2. Row 5 / Column 2 → 2 (Hidden Single)
  3. Row 1 / Column 7 → 7 (Hidden Single)
  4. Row 7 / Column 1 → 7 (Hidden Single)
  5. Row 3 / Column 4 → 4 (Hidden Single)
  6. Row 4 / Column 8 → 2 (Hidden Single)
  7. Row 9 / Column 9 → 2 (Hidden Single)
  8. Row 1 / Column 8 → 6 (Hidden Single)
  9. Row 7 / Column 4 → 8 (Hidden Single)
  10. Row 3 / Column 5 → 8 (Hidden Single)
  11. Row 9 / Column 7 → 8 (Hidden Single)
  12. Row 7 / Column 8 → 4 (Hidden Single)
  13. Row 3 / Column 6 → 7 (Hidden Single)
  14. Row 6 / Column 5 → 7 (Hidden Single)
  15. Row 5 / Column 3 → 7 (Hidden Single)
  16. Locked Candidates Type 1 (Pointing): 1 in b2 => r2c3<>1
  17. Locked Candidates Type 1 (Pointing): 3 in b2 => r2c379<>3
  18. Row 8 / Column 7 → 3 (Hidden Single)
  19. Row 8 / Column 4 → 1 (Naked Single)
  20. Row 3 / Column 9 → 3 (Hidden Single)
  21. Row 9 / Column 8 → 1 (Hidden Single)
  22. Row 7 / Column 2 → 1 (Hidden Single)
  23. Row 3 / Column 1 → 1 (Hidden Single)
  24. Locked Candidates Type 1 (Pointing): 4 in b3 => r2c3<>4
  25. Locked Candidates Type 1 (Pointing): 6 in b5 => r7c6<>6
  26. Locked Candidates Type 1 (Pointing): 6 in b9 => r56c9<>6
  27. Locked Candidates Type 1 (Pointing): 9 in b9 => r25c9<>9
  28. Locked Candidates Type 2 (Claiming): 9 in r9 => r8c3<>9
  29. Locked Candidates Type 2 (Claiming): 3 in c4 => r4c5,r5c6<>3
  30. Naked Triple: 3,5,8 in r5c149 => r5c8<>5
  31. Row 5 / Column 8 → 9 (Naked Single)
  32. Row 3 / Column 8 → 5 (Full House)
  33. Row 3 / Column 2 → 9 (Full House)
  34. Row 2 / Column 9 → 4 (Naked Single)
  35. Row 2 / Column 7 → 9 (Full House)
  36. Row 2 / Column 3 → 5 (Naked Single)
  37. Row 9 / Column 2 → 3 (Naked Single)
  38. Row 9 / Column 3 → 9 (Full House)
  39. Row 8 / Column 3 → 4 (Naked Single)
  40. Row 8 / Column 1 → 5 (Full House)
  41. Row 1 / Column 2 → 4 (Naked Single)
  42. Row 6 / Column 2 → 5 (Full House)
  43. Row 6 / Column 9 → 8 (Naked Single)
  44. Row 5 / Column 9 → 5 (Naked Single)
  45. Row 6 / Column 3 → 1 (Naked Single)
  46. Row 5 / Column 4 → 3 (Naked Single)
  47. Row 4 / Column 4 → 5 (Full House)
  48. Row 4 / Column 3 → 3 (Naked Single)
  49. Row 1 / Column 3 → 8 (Full House)
  50. Row 1 / Column 1 → 3 (Full House)
  51. Row 6 / Column 6 → 6 (Naked Single)
  52. Row 6 / Column 7 → 4 (Full House)
  53. Row 5 / Column 1 → 8 (Naked Single)
  54. Row 4 / Column 1 → 4 (Full House)
  55. Row 5 / Column 6 → 1 (Naked Single)
  56. Row 4 / Column 5 → 9 (Full House)
  57. Row 4 / Column 7 → 1 (Full House)
  58. Row 5 / Column 7 → 6 (Full House)
  59. Row 2 / Column 6 → 3 (Naked Single)
  60. Row 2 / Column 5 → 1 (Full House)
  61. Row 7 / Column 6 → 9 (Full House)
  62. Row 8 / Column 5 → 6 (Naked Single)
  63. Row 7 / Column 5 → 3 (Full House)
  64. Row 7 / Column 9 → 6 (Full House)
  65. Row 8 / Column 9 → 9 (Full House)
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