Solution for Medium Sudoku #12267193854102

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3
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7
1
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5
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7
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9
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2
5
2

This Sudoku Puzzle has 62 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Triple, Locked Candidates Type 2 (Claiming), Naked Single, Full House techniques.

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Solution Steps:

  1. Row 2 / Column 2 → 5 (Hidden Single)
  2. Row 7 / Column 2 → 2 (Hidden Single)
  3. Row 9 / Column 8 → 5 (Hidden Single)
  4. Row 2 / Column 3 → 8 (Hidden Single)
  5. Locked Candidates Type 1 (Pointing): 4 in b7 => r9c9<>4
  6. Locked Candidates Type 1 (Pointing): 8 in b8 => r9c9<>8
  7. Locked Candidates Type 1 (Pointing): 9 in b8 => r7c789<>9
  8. Naked Triple: 2,6,9 in r13c6,r3c4 => r1c45<>6, r1c45<>9
  9. Locked Candidates Type 2 (Claiming): 9 in c5 => r45c6,r56c4<>9
  10. Naked Triple: 5,6,9 in r46c5,r6c4 => r5c46<>6
  11. Row 5 / Column 4 → 1 (Naked Single)
  12. Row 5 / Column 2 → 6 (Hidden Single)
  13. Row 5 / Column 8 → 8 (Hidden Single)
  14. Row 4 / Column 2 → 8 (Hidden Single)
  15. Row 8 / Column 9 → 8 (Hidden Single)
  16. Row 3 / Column 2 → 4 (Hidden Single)
  17. Naked Triple: 3,7,9 in r1c279 => r1c1<>3, r1c16<>9
  18. Locked Candidates Type 1 (Pointing): 9 in b2 => r3c138<>9
  19. Row 2 / Column 1 → 9 (Hidden Single)
  20. Row 2 / Column 9 → 1 (Naked Single)
  21. Row 2 / Column 8 → 2 (Full House)
  22. Row 4 / Column 7 → 1 (Hidden Single)
  23. Row 4 / Column 5 → 5 (Hidden Single)
  24. Row 1 / Column 5 → 8 (Naked Single)
  25. Row 6 / Column 4 → 6 (Naked Single)
  26. Row 1 / Column 4 → 5 (Naked Single)
  27. Row 9 / Column 5 → 6 (Naked Single)
  28. Row 6 / Column 5 → 9 (Full House)
  29. Row 3 / Column 4 → 9 (Naked Single)
  30. Row 9 / Column 6 → 1 (Naked Single)
  31. Row 9 / Column 9 → 3 (Naked Single)
  32. Row 6 / Column 8 → 3 (Naked Single)
  33. Row 7 / Column 4 → 7 (Naked Single)
  34. Row 9 / Column 4 → 8 (Full House)
  35. Row 7 / Column 6 → 9 (Full House)
  36. Row 1 / Column 9 → 9 (Naked Single)
  37. Row 9 / Column 1 → 4 (Naked Single)
  38. Row 9 / Column 3 → 7 (Full House)
  39. Row 3 / Column 8 → 7 (Naked Single)
  40. Row 1 / Column 7 → 3 (Full House)
  41. Row 7 / Column 7 → 4 (Naked Single)
  42. Row 7 / Column 8 → 1 (Naked Single)
  43. Row 7 / Column 9 → 6 (Full House)
  44. Row 4 / Column 9 → 4 (Full House)
  45. Row 8 / Column 8 → 9 (Full House)
  46. Row 8 / Column 7 → 7 (Full House)
  47. Row 6 / Column 1 → 2 (Naked Single)
  48. Row 8 / Column 2 → 3 (Naked Single)
  49. Row 1 / Column 2 → 7 (Full House)
  50. Row 8 / Column 1 → 1 (Full House)
  51. Row 5 / Column 7 → 9 (Naked Single)
  52. Row 6 / Column 7 → 5 (Full House)
  53. Row 6 / Column 3 → 4 (Full House)
  54. Row 4 / Column 6 → 3 (Naked Single)
  55. Row 4 / Column 3 → 9 (Full House)
  56. Row 5 / Column 3 → 3 (Full House)
  57. Row 5 / Column 6 → 4 (Full House)
  58. Row 3 / Column 3 → 2 (Full House)
  59. Row 1 / Column 1 → 6 (Naked Single)
  60. Row 1 / Column 6 → 2 (Full House)
  61. Row 3 / Column 6 → 6 (Full House)
  62. Row 3 / Column 1 → 3 (Full House)
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