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

This Sudoku Puzzle has 62 steps and it is solved using Naked Single, Hidden Single, Full House, Locked Candidates Type 1 (Pointing), Naked Pair, Skyscraper, Remote Pair techniques.

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

Solution Steps:

  1. Row 3 / Column 1 → 1 (Naked Single)
  2. Row 8 / Column 7 → 7 (Naked Single)
  3. Row 3 / Column 3 → 5 (Naked Single)
  4. Row 3 / Column 2 → 9 (Naked Single)
  5. Row 5 / Column 5 → 5 (Hidden Single)
  6. Row 1 / Column 5 → 6 (Hidden Single)
  7. Row 4 / Column 1 → 3 (Hidden Single)
  8. Row 4 / Column 2 → 4 (Naked Single)
  9. Row 1 / Column 1 → 4 (Hidden Single)
  10. Row 2 / Column 3 → 2 (Full House)
  11. Row 8 / Column 3 → 4 (Naked Single)
  12. Row 8 / Column 9 → 5 (Naked Single)
  13. Row 7 / Column 9 → 4 (Naked Single)
  14. Row 9 / Column 9 → 8 (Naked Single)
  15. Row 5 / Column 8 → 4 (Hidden Single)
  16. Locked Candidates Type 1 (Pointing): 3 in b3 => r2c56<>3
  17. Locked Candidates Type 1 (Pointing): 9 in b5 => r6c79<>9
  18. Naked Pair: 7,8 in r34c8 => r16c8<>8, r26c8<>7
  19. Skyscraper: 8 in r1c7,r4c8 (connected by r14c4) => r3c8,r56c7<>8
  20. Row 3 / Column 8 → 7 (Naked Single)
  21. Row 3 / Column 6 → 3 (Naked Single)
  22. Row 3 / Column 5 → 8 (Full House)
  23. Row 4 / Column 8 → 8 (Naked Single)
  24. Row 4 / Column 4 → 7 (Full House)
  25. Row 8 / Column 6 → 2 (Naked Single)
  26. Row 8 / Column 2 → 3 (Full House)
  27. Row 6 / Column 5 → 9 (Naked Single)
  28. Row 7 / Column 4 → 5 (Naked Single)
  29. Row 2 / Column 5 → 7 (Naked Single)
  30. Row 7 / Column 5 → 3 (Full House)
  31. Row 6 / Column 6 → 4 (Naked Single)
  32. Row 6 / Column 4 → 8 (Full House)
  33. Row 9 / Column 4 → 9 (Naked Single)
  34. Row 9 / Column 6 → 7 (Full House)
  35. Row 1 / Column 4 → 1 (Naked Single)
  36. Row 2 / Column 4 → 4 (Full House)
  37. Row 9 / Column 1 → 2 (Naked Single)
  38. Row 5 / Column 1 → 7 (Full House)
  39. Row 1 / Column 7 → 8 (Hidden Single)
  40. Row 5 / Column 3 → 8 (Hidden Single)
  41. Row 9 / Column 2 → 5 (Hidden Single)
  42. Row 7 / Column 3 → 7 (Hidden Single)
  43. Row 6 / Column 9 → 7 (Hidden Single)
  44. Row 6 / Column 7 → 3 (Hidden Single)
  45. Row 2 / Column 9 → 3 (Hidden Single)
  46. Remote Pair: 6/1 r6c3 -1- r9c3 -6- r9c7 -1- r7c8 => r6c8<>6
  47. Row 6 / Column 8 → 2 (Naked Single)
  48. Row 1 / Column 8 → 5 (Naked Single)
  49. Row 5 / Column 9 → 9 (Naked Single)
  50. Row 1 / Column 9 → 2 (Full House)
  51. Row 1 / Column 6 → 9 (Full House)
  52. Row 5 / Column 7 → 6 (Full House)
  53. Row 2 / Column 6 → 5 (Full House)
  54. Row 5 / Column 2 → 2 (Full House)
  55. Row 2 / Column 8 → 1 (Naked Single)
  56. Row 2 / Column 7 → 9 (Full House)
  57. Row 9 / Column 7 → 1 (Full House)
  58. Row 7 / Column 8 → 6 (Full House)
  59. Row 9 / Column 3 → 6 (Full House)
  60. Row 7 / Column 2 → 1 (Full House)
  61. Row 6 / Column 3 → 1 (Full House)
  62. Row 6 / Column 2 → 6 (Full House)
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