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

This Sudoku Puzzle has 70 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Pair, Locked Candidates Type 1 (Pointing), Naked Pair, Remote Pair techniques.

Naked Single Explanation
Hidden Single Explanation
Locked Candidates Explanation
Full House Explanation
Try To Solve This Puzzle

Solution Steps:

  1. Row 8 / Column 5 → 9 (Hidden Single)
  2. Row 7 / Column 6 → 5 (Hidden Single)
  3. Row 8 / Column 3 → 5 (Hidden Single)
  4. Row 9 / Column 8 → 9 (Hidden Single)
  5. Row 1 / Column 8 → 5 (Hidden Single)
  6. Row 2 / Column 4 → 5 (Hidden Single)
  7. Row 7 / Column 1 → 7 (Hidden Single)
  8. Row 9 / Column 3 → 2 (Naked Single)
  9. Row 9 / Column 6 → 7 (Hidden Single)
  10. Row 6 / Column 3 → 3 (Hidden Single)
  11. Row 3 / Column 9 → 9 (Hidden Single)
  12. Row 6 / Column 8 → 4 (Hidden Single)
  13. Row 8 / Column 9 → 4 (Hidden Single)
  14. Row 5 / Column 7 → 5 (Hidden Single)
  15. Row 4 / Column 2 → 5 (Hidden Single)
  16. Row 3 / Column 4 → 7 (Hidden Single)
  17. Row 8 / Column 1 → 3 (Hidden Single)
  18. Row 9 / Column 7 → 1 (Hidden Single)
  19. Row 5 / Column 6 → 4 (Hidden Single)
  20. Row 4 / Column 9 → 7 (Hidden Single)
  21. Row 6 / Column 2 → 7 (Hidden Single)
  22. Row 8 / Column 2 → 6 (Hidden Single)
  23. Row 3 / Column 5 → 4 (Hidden Single)
  24. Row 6 / Column 6 → 9 (Hidden Single)
  25. Row 2 / Column 7 → 7 (Hidden Single)
  26. Row 1 / Column 3 → 7 (Hidden Single)
  27. Row 6 / Column 1 → 6 (Hidden Single)
  28. Row 7 / Column 7 → 3 (Hidden Single)
  29. Row 7 / Column 9 → 6 (Hidden Single)
  30. Row 3 / Column 7 → 6 (Hidden Single)
  31. Row 3 / Column 3 → 1 (Naked Single)
  32. Row 2 / Column 3 → 6 (Full House)
  33. Locked Pair: 2,8 in r1c12 => r1c569,r2c12<>2, r1c569,r2c12<>8
  34. Locked Candidates Type 1 (Pointing): 3 in b2 => r4c6<>3
  35. Naked Pair: 2,8 in r37c8 => r24c8<>2, r24c8<>8
  36. Locked Candidates Type 1 (Pointing): 8 in b6 => r6c4<>8
  37. Naked Pair: 1,3 in r1c9,r2c8 => r2c9<>1, r2c9<>3
  38. Remote Pair: 2/8 r3c6 -8- r3c8 -2- r7c8 -8- r7c5 => r2c5,r8c6<>2, r2c5,r8c6<>8
  39. Row 2 / Column 5 → 1 (Naked Single)
  40. Row 8 / Column 6 → 1 (Naked Single)
  41. Row 1 / Column 5 → 6 (Naked Single)
  42. Row 2 / Column 8 → 3 (Naked Single)
  43. Row 1 / Column 6 → 3 (Naked Single)
  44. Row 1 / Column 9 → 1 (Naked Single)
  45. Row 4 / Column 8 → 1 (Naked Single)
  46. Row 4 / Column 1 → 2 (Naked Single)
  47. Row 1 / Column 1 → 8 (Naked Single)
  48. Row 1 / Column 2 → 2 (Full House)
  49. Row 4 / Column 5 → 8 (Naked Single)
  50. Row 7 / Column 5 → 2 (Full House)
  51. Row 7 / Column 8 → 8 (Full House)
  52. Row 8 / Column 4 → 8 (Full House)
  53. Row 3 / Column 8 → 2 (Full House)
  54. Row 8 / Column 7 → 2 (Full House)
  55. Row 2 / Column 9 → 8 (Full House)
  56. Row 3 / Column 6 → 8 (Full House)
  57. Row 6 / Column 7 → 8 (Full House)
  58. Row 2 / Column 6 → 2 (Full House)
  59. Row 4 / Column 6 → 6 (Full House)
  60. Row 4 / Column 4 → 3 (Full House)
  61. Row 5 / Column 2 → 9 (Naked Single)
  62. Row 5 / Column 1 → 1 (Full House)
  63. Row 9 / Column 1 → 4 (Naked Single)
  64. Row 2 / Column 1 → 9 (Full House)
  65. Row 2 / Column 2 → 4 (Full House)
  66. Row 9 / Column 2 → 8 (Full House)
  67. Row 6 / Column 9 → 2 (Naked Single)
  68. Row 5 / Column 9 → 3 (Full House)
  69. Row 5 / Column 4 → 2 (Full House)
  70. Row 6 / Column 4 → 1 (Full House)
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