Solution for Evil Sudoku #1149713524895

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

This Sudoku Puzzle has 57 steps and it is solved using Hidden Single, Locked Pair, Naked Single, Locked Triple, Full House techniques.

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Solution Steps:

  1. Row 9 / Column 5 → 1 (Hidden Single)
  2. Row 7 / Column 3 → 4 (Hidden Single)
  3. Locked Pair: 1,6 in r46c6 => r238c6,r46c4,r5c5<>6
  4. Row 4 / Column 4 → 3 (Naked Single)
  5. Row 6 / Column 4 → 9 (Naked Single)
  6. Row 5 / Column 5 → 9 (Naked Single)
  7. Locked Triple: 2,6,7 in r123c5 => r23c6,r78c5<>2, r2c4,r78c5<>6
  8. Row 7 / Column 5 → 3 (Naked Single)
  9. Row 8 / Column 5 → 3 (Naked Single)
  10. Row 8 / Column 6 → 2 (Hidden Single)
  11. Row 8 / Column 4 → 8 (Hidden Single)
  12. Row 2 / Column 4 → 5 (Naked Single)
  13. Row 7 / Column 4 → 6 (Full House)
  14. Row 2 / Column 6 → 8 (Naked Single)
  15. Row 3 / Column 6 → 8 (Naked Single)
  16. Row 7 / Column 8 → 2 (Naked Single)
  17. Row 3 / Column 2 → 5 (Hidden Single)
  18. Row 7 / Column 2 → 7 (Naked Single)
  19. Row 7 / Column 1 → 5 (Full House)
  20. Row 1 / Column 9 → 8 (Hidden Single)
  21. Row 6 / Column 9 → 7 (Hidden Single)
  22. Row 4 / Column 8 → 6 (Naked Single)
  23. Row 4 / Column 1 → 7 (Naked Single)
  24. Row 4 / Column 6 → 1 (Naked Single)
  25. Row 4 / Column 7 → 5 (Full House)
  26. Row 4 / Column 3 → 5 (Full House)
  27. Row 6 / Column 7 → 2 (Naked Single)
  28. Row 5 / Column 7 → 3 (Full House)
  29. Row 5 / Column 9 → 3 (Full House)
  30. Row 8 / Column 8 → 9 (Naked Single)
  31. Row 6 / Column 6 → 6 (Naked Single)
  32. Row 2 / Column 8 → 7 (Naked Single)
  33. Row 3 / Column 8 → 3 (Full House)
  34. Row 9 / Column 8 → 3 (Full House)
  35. Row 8 / Column 2 → 6 (Naked Single)
  36. Row 8 / Column 3 → 6 (Naked Single)
  37. Row 9 / Column 7 → 6 (Naked Single)
  38. Row 6 / Column 2 → 1 (Naked Single)
  39. Row 1 / Column 2 → 9 (Full House)
  40. Row 2 / Column 2 → 9 (Full House)
  41. Row 6 / Column 3 → 8 (Full House)
  42. Row 8 / Column 9 → 5 (Naked Single)
  43. Row 5 / Column 3 → 8 (Naked Single)
  44. Row 3 / Column 7 → 9 (Naked Single)
  45. Row 1 / Column 7 → 1 (Full House)
  46. Row 2 / Column 7 → 1 (Full House)
  47. Row 9 / Column 9 → 5 (Naked Single)
  48. Row 5 / Column 1 → 6 (Naked Single)
  49. Row 1 / Column 3 → 2 (Naked Single)
  50. Row 1 / Column 1 → 2 (Naked Single)
  51. Row 2 / Column 1 → 2 (Naked Single)
  52. Row 9 / Column 3 → 9 (Naked Single)
  53. Row 9 / Column 1 → 9 (Naked Single)
  54. Row 2 / Column 5 → 6 (Naked Single)
  55. Row 1 / Column 5 → 7 (Naked Single)
  56. Row 3 / Column 5 → 2 (Naked Single)
  57. Row 3 / Column 9 → 6 (Naked Single)
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