Solution for Medium Sudoku #31235476198103

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

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