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

This Sudoku Puzzle has 63 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Pair, Locked Candidates Type 2 (Claiming), Naked Pair, Remote Pair techniques.

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

Solution Steps:

  1. Row 8 / Column 5 → 6 (Hidden Single)
  2. Row 5 / Column 6 → 6 (Hidden Single)
  3. Row 9 / Column 1 → 9 (Hidden Single)
  4. Row 7 / Column 7 → 9 (Hidden Single)
  5. Row 6 / Column 9 → 6 (Hidden Single)
  6. Row 8 / Column 9 → 3 (Hidden Single)
  7. Row 7 / Column 4 → 8 (Hidden Single)
  8. Row 5 / Column 5 → 9 (Hidden Single)
  9. Row 4 / Column 3 → 9 (Hidden Single)
  10. Row 6 / Column 7 → 5 (Hidden Single)
  11. Row 8 / Column 7 → 7 (Naked Single)
  12. Row 7 / Column 8 → 2 (Naked Single)
  13. Row 9 / Column 8 → 5 (Full House)
  14. Row 7 / Column 6 → 3 (Hidden Single)
  15. Row 3 / Column 6 → 9 (Hidden Single)
  16. Row 9 / Column 2 → 2 (Hidden Single)
  17. Row 4 / Column 1 → 2 (Hidden Single)
  18. Row 1 / Column 3 → 2 (Hidden Single)
  19. Row 1 / Column 8 → 6 (Hidden Single)
  20. Row 3 / Column 3 → 6 (Hidden Single)
  21. Locked Pair: 7,8 in r23c8 => r23c9,r45c8<>7, r2c7,r4c8<>8
  22. Row 4 / Column 7 → 8 (Hidden Single)
  23. Locked Candidates Type 2 (Claiming): 8 in r1 => r23c1,r3c2<>8
  24. Locked Candidates Type 2 (Claiming): 1 in r6 => r5c2<>1
  25. Row 8 / Column 2 → 1 (Hidden Single)
  26. Row 8 / Column 1 → 8 (Naked Single)
  27. Row 8 / Column 3 → 5 (Full House)
  28. Row 1 / Column 2 → 8 (Hidden Single)
  29. Row 1 / Column 6 → 5 (Hidden Single)
  30. Row 3 / Column 2 → 5 (Hidden Single)
  31. Row 2 / Column 9 → 5 (Hidden Single)
  32. Naked Pair: 4,7 in r1c4,r2c6 => r23c5,r3c4<>4, r23c5,r3c4<>7
  33. Row 3 / Column 4 → 3 (Naked Single)
  34. Row 2 / Column 1 → 3 (Hidden Single)
  35. Row 4 / Column 5 → 3 (Hidden Single)
  36. Row 4 / Column 8 → 1 (Naked Single)
  37. Row 5 / Column 8 → 3 (Naked Single)
  38. Row 2 / Column 3 → 1 (Hidden Single)
  39. Row 6 / Column 1 → 1 (Hidden Single)
  40. Row 9 / Column 6 → 1 (Hidden Single)
  41. Row 5 / Column 4 → 1 (Hidden Single)
  42. Remote Pair: 4/7 r3c1 -7- r1c1 -4- r1c4 -7- r2c6 -4- r4c6 -7- r4c9 => r3c9<>4
  43. Row 3 / Column 9 → 2 (Naked Single)
  44. Row 2 / Column 7 → 4 (Naked Single)
  45. Row 5 / Column 7 → 2 (Full House)
  46. Row 3 / Column 5 → 8 (Naked Single)
  47. Row 2 / Column 6 → 7 (Naked Single)
  48. Row 4 / Column 6 → 4 (Full House)
  49. Row 4 / Column 9 → 7 (Full House)
  50. Row 6 / Column 5 → 7 (Full House)
  51. Row 5 / Column 9 → 4 (Full House)
  52. Row 6 / Column 3 → 4 (Full House)
  53. Row 5 / Column 2 → 7 (Full House)
  54. Row 7 / Column 3 → 7 (Full House)
  55. Row 7 / Column 2 → 4 (Full House)
  56. Row 2 / Column 5 → 2 (Naked Single)
  57. Row 1 / Column 4 → 4 (Full House)
  58. Row 2 / Column 8 → 8 (Full House)
  59. Row 3 / Column 8 → 7 (Full House)
  60. Row 9 / Column 5 → 4 (Full House)
  61. Row 1 / Column 1 → 7 (Full House)
  62. Row 9 / Column 4 → 7 (Full House)
  63. Row 3 / Column 1 → 4 (Full House)
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