Solution for Medium Sudoku #42687493215103

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

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.

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Solution Steps:

  1. Row 5 / Column 4 → 2 (Hidden Single)
  2. Row 3 / Column 6 → 4 (Hidden Single)
  3. Row 5 / Column 1 → 9 (Hidden Single)
  4. Row 6 / Column 7 → 9 (Hidden Single)
  5. Row 2 / Column 5 → 9 (Hidden Single)
  6. Row 7 / Column 4 → 3 (Hidden Single)
  7. Row 5 / Column 6 → 3 (Hidden Single)
  8. Row 3 / Column 4 → 5 (Hidden Single)
  9. Row 7 / Column 3 → 9 (Hidden Single)
  10. Row 6 / Column 8 → 1 (Hidden Single)
  11. Row 1 / Column 5 → 1 (Hidden Single)
  12. Row 3 / Column 7 → 1 (Hidden Single)
  13. Row 2 / Column 2 → 1 (Hidden Single)
  14. Locked Candidates Type 1 (Pointing): 2 in b1 => r4689c3<>2
  15. Locked Candidates Type 1 (Pointing): 5 in b5 => r9c5<>5
  16. Locked Candidates Type 1 (Pointing): 6 in b5 => r8c5<>6
  17. Locked Candidates Type 1 (Pointing): 2 in b7 => r46c1<>2
  18. Locked Candidates Type 1 (Pointing): 5 in b9 => r4c7<>5
  19. Naked Triple: 6,7,8 in r7c12,r8c3 => r8c1<>6, r89c1,r9c3<>8, r9c3<>7
  20. Row 9 / Column 3 → 4 (Naked Single)
  21. Row 2 / Column 9 → 4 (Hidden Single)
  22. Row 1 / Column 2 → 4 (Hidden Single)
  23. Locked Candidates Type 1 (Pointing): 6 in b1 => r468c3<>6
  24. Row 8 / Column 6 → 6 (Hidden Single)
  25. Row 7 / Column 6 → 5 (Naked Single)
  26. Row 9 / Column 6 → 1 (Full House)
  27. Row 9 / Column 1 → 2 (Naked Single)
  28. Row 8 / Column 1 → 1 (Naked Single)
  29. Row 9 / Column 7 → 5 (Hidden Single)
  30. Locked Candidates Type 1 (Pointing): 8 in b1 => r48c3<>8
  31. Row 8 / Column 3 → 7 (Naked Single)
  32. Row 8 / Column 5 → 8 (Naked Single)
  33. Row 9 / Column 5 → 7 (Full House)
  34. Row 9 / Column 8 → 8 (Full House)
  35. Row 7 / Column 7 → 7 (Naked Single)
  36. Row 2 / Column 4 → 7 (Hidden Single)
  37. Row 1 / Column 4 → 6 (Full House)
  38. Row 1 / Column 3 → 8 (Naked Single)
  39. Row 1 / Column 7 → 3 (Naked Single)
  40. Row 1 / Column 9 → 7 (Full House)
  41. Row 8 / Column 7 → 2 (Naked Single)
  42. Row 8 / Column 8 → 3 (Full House)
  43. Row 2 / Column 7 → 6 (Naked Single)
  44. Row 2 / Column 3 → 2 (Full House)
  45. Row 4 / Column 7 → 8 (Full House)
  46. Row 3 / Column 3 → 6 (Full House)
  47. Row 3 / Column 8 → 2 (Naked Single)
  48. Row 3 / Column 9 → 8 (Full House)
  49. Row 5 / Column 9 → 5 (Naked Single)
  50. Row 5 / Column 5 → 6 (Naked Single)
  51. Row 5 / Column 8 → 7 (Naked Single)
  52. Row 4 / Column 8 → 6 (Full House)
  53. Row 5 / Column 2 → 8 (Full House)
  54. Row 4 / Column 1 → 4 (Naked Single)
  55. Row 7 / Column 2 → 6 (Naked Single)
  56. Row 7 / Column 1 → 8 (Full House)
  57. Row 6 / Column 1 → 6 (Full House)
  58. Row 4 / Column 5 → 5 (Naked Single)
  59. Row 6 / Column 5 → 4 (Full House)
  60. Row 6 / Column 2 → 2 (Naked Single)
  61. Row 4 / Column 2 → 7 (Full House)
  62. Row 4 / Column 3 → 3 (Naked Single)
  63. Row 4 / Column 9 → 2 (Full House)
  64. Row 6 / Column 9 → 3 (Full House)
  65. Row 6 / Column 3 → 5 (Full House)
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