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

This Sudoku Puzzle has 69 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Single, Locked Candidates Type 2 (Claiming), Full House, Naked Pair, undefined techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 4 / Column 3 → 5 (Hidden Single)
  2. Row 5 / Column 9 → 4 (Hidden Single)
  3. Row 9 / Column 4 → 3 (Hidden Single)
  4. Row 1 / Column 3 → 4 (Hidden Single)
  5. Row 3 / Column 8 → 4 (Hidden Single)
  6. Row 5 / Column 7 → 8 (Hidden Single)
  7. Row 9 / Column 2 → 4 (Hidden Single)
  8. Row 6 / Column 8 → 9 (Hidden Single)
  9. Row 6 / Column 2 → 1 (Hidden Single)
  10. Locked Candidates Type 1 (Pointing): 6 in b4 => r5c5<>6
  11. Row 5 / Column 5 → 7 (Naked Single)
  12. Row 6 / Column 3 → 7 (Hidden Single)
  13. Row 4 / Column 2 → 2 (Hidden Single)
  14. Locked Candidates Type 2 (Claiming): 6 in c5 => r7c46,r8c46<>6
  15. Row 8 / Column 1 → 6 (Hidden Single)
  16. Row 5 / Column 1 → 3 (Naked Single)
  17. Row 5 / Column 2 → 9 (Naked Single)
  18. Row 5 / Column 3 → 6 (Full House)
  19. Row 8 / Column 2 → 7 (Naked Single)
  20. Row 7 / Column 2 → 8 (Naked Single)
  21. Row 2 / Column 2 → 3 (Full House)
  22. Row 9 / Column 3 → 2 (Naked Single)
  23. Row 2 / Column 7 → 7 (Naked Single)
  24. Row 3 / Column 3 → 8 (Naked Single)
  25. Row 7 / Column 3 → 9 (Full House)
  26. Row 8 / Column 9 → 9 (Hidden Single)
  27. Row 7 / Column 7 → 2 (Hidden Single)
  28. Row 1 / Column 7 → 9 (Hidden Single)
  29. Row 7 / Column 5 → 6 (Hidden Single)
  30. Row 9 / Column 7 → 6 (Hidden Single)
  31. Locked Candidates Type 1 (Pointing): 7 in b8 => r7c9<>7
  32. Locked Candidates Type 2 (Claiming): 2 in c5 => r1c46,r3c6<>2
  33. Naked Pair: 1,5 in r7c9,r8c8 => r9c89<>1, r9c89<>5
  34. Naked Pair: 1,5 in r7c19 => r7c4<>5, r7c6<>1
  35. Naked Pair: 6,8 in r24c6 => r1c6<>8
  36. XYZ-Wing: 1/3/5 in r3c79,r7c9 => r1c9<>1
  37. Locked Candidates Type 1 (Pointing): 1 in b3 => r3c56<>1
  38. XY-Wing: 7/8/3 in r1c49,r3c6 => r1c6,r3c79<>3
  39. Row 3 / Column 7 → 1 (Naked Single)
  40. Row 4 / Column 7 → 3 (Full House)
  41. Row 3 / Column 9 → 5 (Naked Single)
  42. Row 2 / Column 8 → 8 (Naked Single)
  43. Row 1 / Column 9 → 3 (Full House)
  44. Row 3 / Column 5 → 2 (Naked Single)
  45. Row 7 / Column 9 → 1 (Naked Single)
  46. Row 2 / Column 6 → 6 (Naked Single)
  47. Row 2 / Column 4 → 5 (Full House)
  48. Row 9 / Column 8 → 7 (Naked Single)
  49. Row 1 / Column 5 → 1 (Naked Single)
  50. Row 9 / Column 5 → 5 (Full House)
  51. Row 3 / Column 1 → 7 (Naked Single)
  52. Row 1 / Column 1 → 2 (Full House)
  53. Row 3 / Column 6 → 3 (Full House)
  54. Row 4 / Column 9 → 7 (Naked Single)
  55. Row 4 / Column 8 → 1 (Full House)
  56. Row 8 / Column 8 → 5 (Full House)
  57. Row 9 / Column 9 → 8 (Full House)
  58. Row 9 / Column 1 → 1 (Full House)
  59. Row 7 / Column 1 → 5 (Full House)
  60. Row 4 / Column 6 → 8 (Naked Single)
  61. Row 4 / Column 4 → 6 (Full House)
  62. Row 8 / Column 4 → 2 (Naked Single)
  63. Row 8 / Column 6 → 1 (Full House)
  64. Row 1 / Column 6 → 7 (Naked Single)
  65. Row 1 / Column 4 → 8 (Full House)
  66. Row 6 / Column 4 → 4 (Naked Single)
  67. Row 6 / Column 6 → 2 (Full House)
  68. Row 7 / Column 6 → 4 (Full House)
  69. Row 7 / Column 4 → 7 (Full House)
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