Solution for Medium Sudoku #31691754832103

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

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

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

Solution Steps:

  1. Row 3 / Column 4 → 5 (Hidden Single)
  2. Row 5 / Column 8 → 5 (Hidden Single)
  3. Row 4 / Column 7 → 7 (Hidden Single)
  4. Row 6 / Column 5 → 8 (Hidden Single)
  5. Row 9 / Column 5 → 5 (Hidden Single)
  6. Row 7 / Column 3 → 5 (Hidden Single)
  7. Row 2 / Column 4 → 3 (Hidden Single)
  8. Row 6 / Column 7 → 2 (Hidden Single)
  9. Row 5 / Column 9 → 3 (Hidden Single)
  10. Row 6 / Column 3 → 4 (Hidden Single)
  11. Row 4 / Column 5 → 4 (Hidden Single)
  12. Row 3 / Column 7 → 3 (Hidden Single)
  13. Row 8 / Column 8 → 3 (Hidden Single)
  14. Locked Candidates Type 1 (Pointing): 2 in b1 => r3c6<>2
  15. Locked Candidates Type 1 (Pointing): 2 in b5 => r5c1<>2
  16. Locked Candidates Type 1 (Pointing): 6 in b5 => r5c2<>6
  17. Locked Candidates Type 1 (Pointing): 8 in b9 => r7c1246<>8
  18. Locked Candidates Type 1 (Pointing): 8 in b7 => r9c46<>8
  19. Naked Triple: 1,6,9 in r7c2,r89c3 => r7c1<>1, r79c1,r9c2<>9, r9c2<>6
  20. Row 7 / Column 1 → 7 (Naked Single)
  21. Row 1 / Column 8 → 7 (Hidden Single)
  22. Row 8 / Column 9 → 7 (Hidden Single)
  23. Locked Candidates Type 1 (Pointing): 6 in b9 => r7c246<>6
  24. Row 4 / Column 2 → 6 (Hidden Single)
  25. Row 4 / Column 3 → 2 (Naked Single)
  26. Row 4 / Column 1 → 3 (Full House)
  27. Row 9 / Column 1 → 8 (Naked Single)
  28. Row 9 / Column 2 → 3 (Naked Single)
  29. Row 3 / Column 1 → 2 (Hidden Single)
  30. Locked Candidates Type 1 (Pointing): 9 in b9 => r7c26<>9
  31. Row 7 / Column 2 → 1 (Naked Single)
  32. Row 5 / Column 2 → 9 (Naked Single)
  33. Row 5 / Column 1 → 1 (Full House)
  34. Row 2 / Column 1 → 9 (Full House)
  35. Row 3 / Column 3 → 1 (Naked Single)
  36. Row 6 / Column 8 → 1 (Hidden Single)
  37. Row 6 / Column 9 → 6 (Full House)
  38. Row 7 / Column 9 → 9 (Naked Single)
  39. Row 3 / Column 9 → 4 (Naked Single)
  40. Row 1 / Column 9 → 1 (Full House)
  41. Row 3 / Column 2 → 8 (Naked Single)
  42. Row 2 / Column 2 → 4 (Full House)
  43. Row 3 / Column 8 → 6 (Naked Single)
  44. Row 3 / Column 6 → 9 (Full House)
  45. Row 7 / Column 8 → 8 (Full House)
  46. Row 7 / Column 7 → 6 (Full House)
  47. Row 2 / Column 7 → 8 (Naked Single)
  48. Row 1 / Column 7 → 9 (Full House)
  49. Row 1 / Column 5 → 2 (Naked Single)
  50. Row 5 / Column 5 → 6 (Naked Single)
  51. Row 2 / Column 5 → 1 (Naked Single)
  52. Row 2 / Column 6 → 6 (Full House)
  53. Row 8 / Column 5 → 9 (Full House)
  54. Row 9 / Column 6 → 7 (Naked Single)
  55. Row 8 / Column 3 → 6 (Naked Single)
  56. Row 9 / Column 3 → 9 (Full House)
  57. Row 9 / Column 4 → 6 (Full House)
  58. Row 5 / Column 6 → 2 (Naked Single)
  59. Row 5 / Column 4 → 7 (Full House)
  60. Row 8 / Column 4 → 8 (Naked Single)
  61. Row 8 / Column 6 → 1 (Full House)
  62. Row 7 / Column 6 → 4 (Naked Single)
  63. Row 1 / Column 6 → 8 (Full House)
  64. Row 1 / Column 4 → 4 (Full House)
  65. Row 7 / Column 4 → 2 (Full House)
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