Solution for Evil Sudoku #1324713524895

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

This Sudoku Puzzle has 64 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Triple, Naked Single, Locked Pair, Full House, Hidden Pair techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 1 / Column 5 → 1 (Hidden Single)
  2. Row 2 / Column 7 → 4 (Hidden Single)
  3. Row 1 / Column 3 → 4 (Hidden Single)
  4. Row 7 / Column 5 → 4 (Hidden Single)
  5. Row 9 / Column 9 → 4 (Hidden Single)
  6. Row 3 / Column 7 → 2 (Hidden Single)
  7. Locked Candidates Type 1 (Pointing): 5 in b1 => r5c1<>5
  8. Locked Candidates Type 1 (Pointing): 8 in b4 => r79c1<>8
  9. Row 9 / Column 7 → 8 (Hidden Single)
  10. Row 4 / Column 1 → 8 (Hidden Single)
  11. Row 5 / Column 9 → 8 (Hidden Single)
  12. Row 4 / Column 3 → 2 (Hidden Single)
  13. Row 2 / Column 1 → 2 (Hidden Single)
  14. Row 4 / Column 8 → 7 (Hidden Single)
  15. Row 9 / Column 1 → 7 (Hidden Single)
  16. Row 6 / Column 2 → 7 (Hidden Single)
  17. Row 8 / Column 2 → 2 (Hidden Single)
  18. Row 1 / Column 1 → 5 (Hidden Single)
  19. Row 3 / Column 9 → 7 (Hidden Single)
  20. Row 8 / Column 5 → 7 (Hidden Single)
  21. Row 7 / Column 2 → 8 (Hidden Single)
  22. Row 1 / Column 2 → 3 (Hidden Single)
  23. Locked Candidates Type 1 (Pointing): 5 in b3 => r78c8<>5
  24. Row 7 / Column 4 → 5 (Hidden Single)
  25. Row 8 / Column 9 → 5 (Hidden Single)
  26. Locked Candidates Type 1 (Pointing): 6 in b9 => r23c8<>6
  27. Locked Candidates Type 1 (Pointing): 9 in b9 => r23c8<>9
  28. Naked Triple: 1,6,9 in r4c46,r6c4 => r5c5,r6c6<>6, r5c5,r6c6<>9
  29. Row 5 / Column 5 → 3 (Naked Single)
  30. Row 6 / Column 6 → 3 (Naked Single)
  31. Row 7 / Column 1 → 3 (Hidden Single)
  32. Row 2 / Column 8 → 3 (Hidden Single)
  33. Row 3 / Column 8 → 5 (Naked Single)
  34. Row 5 / Column 1 → 6 (Hidden Single)
  35. Row 2 / Column 6 → 5 (Hidden Single)
  36. Row 2 / Column 4 → 8 (Hidden Single)
  37. Row 8 / Column 6 → 8 (Hidden Single)
  38. Locked Pair: 6,9 in r23c5 => r3c6,r9c5<>6, r3c6,r9c5<>9
  39. Row 9 / Column 5 → 9 (Naked Single)
  40. Row 3 / Column 6 → 9 (Naked Single)
  41. Row 2 / Column 5 → 6 (Naked Single)
  42. Row 2 / Column 2 → 9 (Full House)
  43. Row 3 / Column 2 → 6 (Full House)
  44. Row 3 / Column 5 → 6 (Naked Single)
  45. Row 8 / Column 4 → 6 (Naked Single)
  46. Row 4 / Column 6 → 6 (Naked Single)
  47. Locked Candidates Type 1 (Pointing): 9 in b4 => r78c3<>9
  48. Row 7 / Column 3 → 6 (Naked Single)
  49. Row 8 / Column 3 → 1 (Full House)
  50. Row 7 / Column 8 → 9 (Full House)
  51. Row 9 / Column 3 → 1 (Full House)
  52. Row 8 / Column 8 → 9 (Full House)
  53. Row 9 / Column 8 → 6 (Naked Single)
  54. Hidden Pair: 1,3 in r6c47 => r6c47<>9, r6c7<>5, r6c7<>6
  55. Row 6 / Column 4 → 1 (Naked Single)
  56. Row 4 / Column 4 → 9 (Full House)
  57. Row 4 / Column 7 → 1 (Full House)
  58. Row 6 / Column 7 → 1 (Naked Single)
  59. Row 6 / Column 3 → 5 (Hidden Single)
  60. Row 5 / Column 3 → 9 (Full House)
  61. Row 5 / Column 7 → 5 (Full House)
  62. Row 6 / Column 9 → 6 (Hidden Single)
  63. Row 1 / Column 9 → 9 (Full House)
  64. Row 1 / Column 7 → 6 (Full House)
Show More...