Solution for Medium Sudoku #12186954372101

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

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.

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Solution Steps:

  1. Row 3 / Column 9 → 1 (Hidden Single)
  2. Row 2 / Column 1 → 6 (Hidden Single)
  3. Row 6 / Column 2 → 6 (Hidden Single)
  4. Row 8 / Column 7 → 1 (Hidden Single)
  5. Row 6 / Column 7 → 9 (Hidden Single)
  6. Row 9 / Column 8 → 6 (Hidden Single)
  7. Row 2 / Column 9 → 4 (Hidden Single)
  8. Row 2 / Column 3 → 7 (Hidden Single)
  9. Row 9 / Column 3 → 1 (Naked Single)
  10. Row 1 / Column 7 → 7 (Hidden Single)
  11. Row 7 / Column 6 → 1 (Hidden Single)
  12. Row 7 / Column 1 → 9 (Hidden Single)
  13. Row 7 / Column 2 → 3 (Hidden Single)
  14. Row 1 / Column 2 → 2 (Naked Single)
  15. Row 3 / Column 1 → 3 (Full House)
  16. Locked Candidates Type 1 (Pointing): 2 in b3 => r4c8<>2
  17. Locked Candidates Type 1 (Pointing): 4 in b4 => r89c1<>4
  18. Row 9 / Column 1 → 7 (Naked Single)
  19. Locked Candidates Type 1 (Pointing): 8 in b9 => r46c9<>8
  20. Locked Candidates Type 1 (Pointing): 8 in b6 => r4c46<>8
  21. Naked Pair: 3,5 in r6c39 => r6c16<>5, r6c46<>3
  22. Naked Pair: 2,5 in r58c1 => r4c1<>2, r4c1<>5
  23. Naked Pair: 3,5 in r16c9 => r45c9<>3, r45c9<>5
  24. Locked Candidates Type 2 (Claiming): 3 in r5 => r4c46<>3
  25. Naked Pair: 1,4 in r4c14 => r4c6<>4
  26. Naked Triple: 1,4,8 in r469c4 => r238c4<>8, r38c4<>4
  27. Row 3 / Column 4 → 2 (Naked Single)
  28. Row 3 / Column 8 → 8 (Naked Single)
  29. Row 3 / Column 5 → 4 (Full House)
  30. Row 2 / Column 7 → 3 (Naked Single)
  31. Row 4 / Column 7 → 8 (Full House)
  32. Row 4 / Column 8 → 5 (Naked Single)
  33. Row 1 / Column 9 → 5 (Naked Single)
  34. Row 2 / Column 4 → 9 (Naked Single)
  35. Row 1 / Column 8 → 9 (Naked Single)
  36. Row 1 / Column 6 → 3 (Full House)
  37. Row 2 / Column 8 → 2 (Full House)
  38. Row 4 / Column 6 → 6 (Naked Single)
  39. Row 6 / Column 9 → 3 (Naked Single)
  40. Row 8 / Column 4 → 7 (Naked Single)
  41. Row 4 / Column 9 → 2 (Naked Single)
  42. Row 5 / Column 9 → 6 (Full House)
  43. Row 5 / Column 6 → 5 (Naked Single)
  44. Row 6 / Column 3 → 5 (Naked Single)
  45. Row 5 / Column 4 → 3 (Naked Single)
  46. Row 7 / Column 5 → 8 (Naked Single)
  47. Row 7 / Column 9 → 7 (Full House)
  48. Row 8 / Column 9 → 8 (Full House)
  49. Row 4 / Column 3 → 3 (Naked Single)
  50. Row 8 / Column 3 → 2 (Full House)
  51. Row 2 / Column 6 → 8 (Naked Single)
  52. Row 2 / Column 5 → 5 (Full House)
  53. Row 5 / Column 1 → 2 (Naked Single)
  54. Row 5 / Column 5 → 7 (Full House)
  55. Row 8 / Column 5 → 6 (Full House)
  56. Row 9 / Column 4 → 4 (Naked Single)
  57. Row 8 / Column 6 → 9 (Full House)
  58. Row 6 / Column 6 → 4 (Full House)
  59. Row 9 / Column 2 → 8 (Full House)
  60. Row 8 / Column 2 → 4 (Full House)
  61. Row 8 / Column 1 → 5 (Full House)
  62. Row 4 / Column 4 → 1 (Naked Single)
  63. Row 4 / Column 1 → 4 (Full House)
  64. Row 6 / Column 1 → 1 (Full House)
  65. Row 6 / Column 4 → 8 (Full House)
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