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

This Sudoku Puzzle has 60 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Naked Pair, Naked Triple, undefined 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 3 → 8 (Hidden Single)
  2. Row 1 / Column 4 → 3 (Hidden Single)
  3. Row 6 / Column 5 → 7 (Hidden Single)
  4. Row 3 / Column 5 → 2 (Naked Single)
  5. Row 4 / Column 8 → 5 (Hidden Single)
  6. Row 3 / Column 8 → 6 (Naked Single)
  7. Row 3 / Column 7 → 7 (Naked Single)
  8. Row 3 / Column 1 → 5 (Full House)
  9. Row 2 / Column 9 → 5 (Hidden Single)
  10. Row 2 / Column 4 → 1 (Naked Single)
  11. Row 2 / Column 5 → 9 (Naked Single)
  12. Row 2 / Column 8 → 2 (Naked Single)
  13. Row 1 / Column 7 → 1 (Full House)
  14. Row 2 / Column 6 → 7 (Naked Single)
  15. Row 1 / Column 6 → 5 (Full House)
  16. Row 2 / Column 1 → 4 (Full House)
  17. Row 8 / Column 5 → 3 (Naked Single)
  18. Row 4 / Column 7 → 2 (Naked Single)
  19. Row 9 / Column 5 → 4 (Naked Single)
  20. Row 6 / Column 9 → 1 (Naked Single)
  21. Row 4 / Column 5 → 1 (Naked Single)
  22. Row 5 / Column 5 → 8 (Full House)
  23. Row 5 / Column 7 → 9 (Naked Single)
  24. Row 6 / Column 8 → 8 (Full House)
  25. Row 9 / Column 7 → 6 (Naked Single)
  26. Row 7 / Column 7 → 8 (Full House)
  27. Row 8 / Column 8 → 9 (Naked Single)
  28. Row 9 / Column 2 → 5 (Hidden Single)
  29. Row 5 / Column 4 → 5 (Hidden Single)
  30. Row 8 / Column 2 → 8 (Hidden Single)
  31. Locked Candidates Type 1 (Pointing): 6 in b8 => r7c13<>6
  32. Locked Candidates Type 2 (Claiming): 2 in r8 => r7c123,r9c13<>2
  33. Naked Pair: 2,9 in r16c2 => r5c2<>2, r7c2<>9
  34. Naked Triple: 2,7,9 in r9c369 => r9c1<>7, r9c1<>9
  35. W-Wing: 6/2 in r6c4,r8c1 connected by 2 in r5c16 => r6c1<>6
  36. Row 6 / Column 4 → 6 (Hidden Single)
  37. Row 7 / Column 4 → 2 (Full House)
  38. Row 4 / Column 6 → 4 (Naked Single)
  39. Row 4 / Column 3 → 6 (Full House)
  40. Row 5 / Column 6 → 2 (Full House)
  41. Row 7 / Column 9 → 7 (Naked Single)
  42. Row 9 / Column 9 → 2 (Full House)
  43. Row 9 / Column 6 → 9 (Naked Single)
  44. Row 7 / Column 6 → 6 (Full House)
  45. Row 8 / Column 3 → 2 (Naked Single)
  46. Row 8 / Column 1 → 6 (Full House)
  47. Row 5 / Column 1 → 3 (Naked Single)
  48. Row 5 / Column 2 → 4 (Full House)
  49. Row 9 / Column 3 → 7 (Naked Single)
  50. Row 9 / Column 1 → 1 (Naked Single)
  51. Row 9 / Column 8 → 3 (Full House)
  52. Row 7 / Column 8 → 1 (Full House)
  53. Row 7 / Column 2 → 3 (Naked Single)
  54. Row 1 / Column 3 → 9 (Naked Single)
  55. Row 7 / Column 3 → 4 (Full House)
  56. Row 7 / Column 1 → 9 (Full House)
  57. Row 1 / Column 2 → 2 (Naked Single)
  58. Row 1 / Column 1 → 7 (Full House)
  59. Row 6 / Column 1 → 2 (Full House)
  60. Row 6 / Column 2 → 9 (Full House)
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