Solution for Medium Sudoku #31628543719101

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

This Sudoku Puzzle has 65 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Candidates Type 1 (Pointing), Naked Pair, Locked Candidates Type 2 (Claiming), Naked Triple 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 6 → 8 (Hidden Single)
  2. Row 1 / Column 2 → 8 (Hidden Single)
  3. Row 7 / Column 8 → 6 (Hidden Single)
  4. Row 9 / Column 3 → 6 (Hidden Single)
  5. Row 7 / Column 6 → 5 (Hidden Single)
  6. Row 8 / Column 9 → 8 (Hidden Single)
  7. Row 3 / Column 2 → 1 (Hidden Single)
  8. Row 3 / Column 9 → 6 (Naked Single)
  9. Row 9 / Column 2 → 3 (Hidden Single)
  10. Row 7 / Column 1 → 1 (Hidden Single)
  11. Row 6 / Column 7 → 6 (Hidden Single)
  12. Row 1 / Column 7 → 5 (Hidden Single)
  13. Row 2 / Column 7 → 7 (Hidden Single)
  14. Row 2 / Column 1 → 9 (Naked Single)
  15. Row 1 / Column 3 → 7 (Full House)
  16. Locked Candidates Type 1 (Pointing): 3 in b2 => r1c89<>3
  17. Row 1 / Column 9 → 1 (Naked Single)
  18. Locked Candidates Type 1 (Pointing): 9 in b7 => r8c4<>9
  19. Locked Candidates Type 1 (Pointing): 2 in b9 => r9c46<>2
  20. Locked Candidates Type 1 (Pointing): 2 in b8 => r46c4<>2
  21. Naked Pair: 4,9 in r1c58 => r1c46<>4, r1c4<>9
  22. Naked Pair: 4,7 in r9c16 => r9c45<>4, r9c45<>7
  23. Locked Candidates Type 2 (Claiming): 7 in c5 => r4c46,r6c46<>7
  24. Naked Pair: 3,6 in r14c4 => r6c4<>3
  25. Naked Pair: 4,7 in r39c6 => r6c6<>4
  26. Naked Triple: 2,3,6 in r4c469 => r4c238<>2, r4c38<>3
  27. Row 4 / Column 3 → 9 (Naked Single)
  28. Row 8 / Column 3 → 2 (Naked Single)
  29. Row 5 / Column 3 → 3 (Full House)
  30. Row 7 / Column 2 → 7 (Naked Single)
  31. Row 7 / Column 4 → 2 (Full House)
  32. Row 8 / Column 4 → 4 (Naked Single)
  33. Row 4 / Column 2 → 5 (Naked Single)
  34. Row 9 / Column 1 → 4 (Naked Single)
  35. Row 6 / Column 4 → 8 (Naked Single)
  36. Row 8 / Column 1 → 5 (Naked Single)
  37. Row 8 / Column 2 → 9 (Full House)
  38. Row 6 / Column 1 → 7 (Full House)
  39. Row 9 / Column 6 → 7 (Naked Single)
  40. Row 4 / Column 8 → 1 (Naked Single)
  41. Row 9 / Column 4 → 9 (Naked Single)
  42. Row 9 / Column 5 → 8 (Full House)
  43. Row 6 / Column 5 → 4 (Naked Single)
  44. Row 3 / Column 6 → 4 (Naked Single)
  45. Row 4 / Column 5 → 7 (Naked Single)
  46. Row 5 / Column 7 → 2 (Naked Single)
  47. Row 9 / Column 7 → 1 (Full House)
  48. Row 9 / Column 8 → 2 (Full House)
  49. Row 3 / Column 4 → 7 (Naked Single)
  50. Row 3 / Column 8 → 9 (Full House)
  51. Row 1 / Column 5 → 9 (Naked Single)
  52. Row 5 / Column 5 → 1 (Full House)
  53. Row 6 / Column 2 → 2 (Naked Single)
  54. Row 5 / Column 2 → 4 (Full House)
  55. Row 5 / Column 8 → 8 (Full House)
  56. Row 4 / Column 9 → 3 (Naked Single)
  57. Row 2 / Column 9 → 2 (Full House)
  58. Row 2 / Column 8 → 3 (Full House)
  59. Row 1 / Column 8 → 4 (Full House)
  60. Row 6 / Column 8 → 5 (Full House)
  61. Row 6 / Column 6 → 3 (Full House)
  62. Row 4 / Column 4 → 6 (Naked Single)
  63. Row 1 / Column 4 → 3 (Full House)
  64. Row 1 / Column 6 → 6 (Full House)
  65. Row 4 / Column 6 → 2 (Full House)
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