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

This Sudoku Puzzle has 64 steps and it is solved using Naked Single, Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Naked Triple, undefined, Full House techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 5 / Column 3 → 9 (Naked Single)
  2. Row 3 / Column 8 → 7 (Hidden Single)
  3. Row 5 / Column 6 → 3 (Hidden Single)
  4. Row 4 / Column 2 → 3 (Hidden Single)
  5. Row 1 / Column 1 → 3 (Hidden Single)
  6. Row 6 / Column 1 → 7 (Hidden Single)
  7. Row 8 / Column 8 → 3 (Hidden Single)
  8. Row 9 / Column 6 → 6 (Hidden Single)
  9. Row 4 / Column 5 → 6 (Hidden Single)
  10. Row 9 / Column 8 → 1 (Hidden Single)
  11. Row 7 / Column 8 → 5 (Hidden Single)
  12. Locked Candidates Type 1 (Pointing): 8 in b6 => r79c7<>8
  13. Locked Candidates Type 1 (Pointing): 9 in b7 => r2c1<>9
  14. Locked Candidates Type 1 (Pointing): 2 in b8 => r1c4<>2
  15. Locked Candidates Type 1 (Pointing): 4 in b8 => r146c4<>4
  16. Locked Candidates Type 2 (Claiming): 4 in c8 => r4c9,r6c7<>4
  17. Locked Candidates Type 2 (Claiming): 9 in c8 => r4c9,r6c7<>9
  18. Naked Triple: 1,2,8 in r367c2 => r12c2<>1, r1c2<>2, r2c2<>8
  19. Locked Candidates Type 1 (Pointing): 8 in b1 => r3c6<>8
  20. W-Wing: 5/1 in r1c4,r2c1 connected by 1 in r12c7 => r1c3,r2c56<>5
  21. Row 2 / Column 1 → 5 (Hidden Single)
  22. W-Wing: 2/1 in r3c1,r4c3 connected by 1 in r8c13 => r13c3<>2
  23. Row 1 / Column 6 → 2 (Hidden Single)
  24. Row 1 / Column 4 → 5 (Hidden Single)
  25. Row 6 / Column 6 → 5 (Hidden Single)
  26. Row 9 / Column 3 → 5 (Hidden Single)
  27. Row 8 / Column 5 → 5 (Hidden Single)
  28. Row 2 / Column 6 → 8 (Hidden Single)
  29. Row 2 / Column 5 → 4 (Naked Single)
  30. Row 3 / Column 6 → 1 (Full House)
  31. Row 6 / Column 5 → 8 (Full House)
  32. Row 4 / Column 6 → 4 (Full House)
  33. Row 3 / Column 1 → 2 (Naked Single)
  34. Row 5 / Column 4 → 7 (Naked Single)
  35. Row 5 / Column 7 → 8 (Full House)
  36. Row 6 / Column 7 → 2 (Naked Single)
  37. Row 4 / Column 8 → 9 (Naked Single)
  38. Row 6 / Column 8 → 4 (Full House)
  39. Row 4 / Column 9 → 7 (Full House)
  40. Row 3 / Column 2 → 8 (Naked Single)
  41. Row 3 / Column 3 → 4 (Full House)
  42. Row 9 / Column 1 → 9 (Naked Single)
  43. Row 8 / Column 1 → 1 (Full House)
  44. Row 6 / Column 2 → 1 (Naked Single)
  45. Row 4 / Column 3 → 2 (Full House)
  46. Row 4 / Column 4 → 1 (Full House)
  47. Row 6 / Column 4 → 9 (Full House)
  48. Row 7 / Column 2 → 2 (Naked Single)
  49. Row 8 / Column 3 → 8 (Full House)
  50. Row 1 / Column 3 → 1 (Full House)
  51. Row 9 / Column 7 → 4 (Naked Single)
  52. Row 8 / Column 4 → 2 (Naked Single)
  53. Row 8 / Column 9 → 9 (Full House)
  54. Row 1 / Column 7 → 9 (Naked Single)
  55. Row 7 / Column 7 → 7 (Naked Single)
  56. Row 2 / Column 7 → 1 (Full House)
  57. Row 7 / Column 9 → 8 (Naked Single)
  58. Row 7 / Column 4 → 4 (Full House)
  59. Row 9 / Column 4 → 8 (Full House)
  60. Row 9 / Column 9 → 2 (Full House)
  61. Row 2 / Column 9 → 6 (Naked Single)
  62. Row 1 / Column 9 → 4 (Full House)
  63. Row 1 / Column 2 → 6 (Full House)
  64. Row 2 / Column 2 → 9 (Full House)
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