Solution for Evil Sudoku #2192634185793

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

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

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Solution Steps:

  1. Row 4 / Column 4 → 5 (Naked Single)
  2. Row 4 / Column 6 → 9 (Naked Single)
  3. Row 5 / Column 4 → 8 (Naked Single)
  4. Row 6 / Column 6 → 3 (Full House)
  5. Row 1 / Column 4 → 1 (Hidden Single)
  6. Row 1 / Column 1 → 3 (Hidden Single)
  7. Row 5 / Column 7 → 3 (Hidden Single)
  8. Row 8 / Column 2 → 3 (Hidden Single)
  9. Row 8 / Column 8 → 1 (Hidden Single)
  10. Row 2 / Column 5 → 3 (Hidden Single)
  11. Row 8 / Column 9 → 5 (Hidden Single)
  12. Row 7 / Column 8 → 6 (Hidden Single)
  13. Row 2 / Column 6 → 2 (Hidden Single)
  14. Locked Candidates Type 1 (Pointing): 4 in b4 => r6c789<>4
  15. Locked Pair: 8,9 in r6c79 => r56c8,r6c23<>9, r6c8<>8
  16. Row 6 / Column 8 → 5 (Naked Single)
  17. Row 6 / Column 1 → 6 (Naked Single)
  18. Locked Candidates Type 1 (Pointing): 4 in b8 => r8c7<>4
  19. Locked Candidates Type 1 (Pointing): 6 in b8 => r8c3<>6
  20. Locked Pair: 7,8 in r78c3 => r1259c3,r7c1,r9c2<>7, r129c3,r7c1<>8
  21. Row 7 / Column 1 → 2 (Naked Single)
  22. Row 4 / Column 1 → 7 (Naked Single)
  23. Row 7 / Column 5 → 8 (Naked Single)
  24. Row 5 / Column 1 → 5 (Naked Single)
  25. Row 3 / Column 1 → 8 (Full House)
  26. Row 1 / Column 5 → 9 (Naked Single)
  27. Row 7 / Column 3 → 7 (Naked Single)
  28. Row 9 / Column 6 → 7 (Naked Single)
  29. Row 5 / Column 3 → 9 (Naked Single)
  30. Row 3 / Column 5 → 6 (Naked Single)
  31. Row 8 / Column 5 → 2 (Full House)
  32. Row 8 / Column 3 → 8 (Naked Single)
  33. Row 8 / Column 6 → 4 (Naked Single)
  34. Row 8 / Column 4 → 6 (Full House)
  35. Row 8 / Column 7 → 7 (Full House)
  36. Row 9 / Column 9 → 8 (Naked Single)
  37. Row 5 / Column 2 → 2 (Naked Single)
  38. Row 5 / Column 8 → 7 (Full House)
  39. Row 3 / Column 6 → 5 (Naked Single)
  40. Row 1 / Column 6 → 8 (Full House)
  41. Row 6 / Column 9 → 9 (Naked Single)
  42. Row 9 / Column 7 → 2 (Naked Single)
  43. Row 1 / Column 8 → 4 (Naked Single)
  44. Row 6 / Column 7 → 8 (Naked Single)
  45. Row 7 / Column 9 → 4 (Naked Single)
  46. Row 2 / Column 9 → 7 (Full House)
  47. Row 7 / Column 7 → 9 (Full House)
  48. Row 4 / Column 7 → 4 (Full House)
  49. Row 4 / Column 8 → 2 (Full House)
  50. Row 1 / Column 2 → 7 (Naked Single)
  51. Row 1 / Column 3 → 5 (Full House)
  52. Row 3 / Column 8 → 9 (Naked Single)
  53. Row 2 / Column 8 → 8 (Full House)
  54. Row 2 / Column 4 → 4 (Naked Single)
  55. Row 3 / Column 4 → 7 (Full House)
  56. Row 3 / Column 2 → 4 (Full House)
  57. Row 2 / Column 3 → 6 (Naked Single)
  58. Row 2 / Column 2 → 9 (Full House)
  59. Row 6 / Column 2 → 1 (Naked Single)
  60. Row 6 / Column 3 → 4 (Full House)
  61. Row 9 / Column 3 → 1 (Full House)
  62. Row 9 / Column 2 → 6 (Full House)
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