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

This Sudoku Puzzle has 61 steps and it is solved using Hidden Single, Locked Pair, Naked Single, Locked Triple, Full House techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 8 / Column 7 → 2 (Hidden Single)
  2. Row 2 / Column 1 → 3 (Hidden Single)
  3. Row 8 / Column 8 → 9 (Hidden Single)
  4. Locked Pair: 7,8 in r46c5 => r3c5<>7, r39c5,r456c6<>8
  5. Row 4 / Column 6 → 3 (Naked Single)
  6. Row 5 / Column 6 → 5 (Naked Single)
  7. Row 6 / Column 6 → 5 (Naked Single)
  8. Locked Triple: 1,5,6 in r8c123 => r8c4,r9c3<>5, r7c23,r8c4,r9c3<>6, r7c23,r9c3<>1
  9. Row 8 / Column 4 → 6 (Naked Single)
  10. Row 7 / Column 4 → 8 (Naked Single)
  11. Row 8 / Column 1 → 1 (Naked Single)
  12. Row 2 / Column 4 → 7 (Naked Single)
  13. Row 3 / Column 4 → 7 (Naked Single)
  14. Row 7 / Column 2 → 7 (Naked Single)
  15. Row 9 / Column 4 → 5 (Naked Single)
  16. Row 8 / Column 2 → 5 (Naked Single)
  17. Row 8 / Column 3 → 5 (Naked Single)
  18. Row 7 / Column 3 → 3 (Naked Single)
  19. Row 9 / Column 3 → 8 (Naked Single)
  20. Row 5 / Column 3 → 1 (Hidden Single)
  21. Row 1 / Column 3 → 7 (Hidden Single)
  22. Row 5 / Column 9 → 2 (Hidden Single)
  23. Row 5 / Column 7 → 9 (Hidden Single)
  24. Row 3 / Column 9 → 9 (Hidden Single)
  25. Row 4 / Column 3 → 9 (Hidden Single)
  26. Row 3 / Column 7 → 5 (Hidden Single)
  27. Locked Pair: 1,6 in r12c9 => r12c7,r4679c9<>6, r12c7,r79c9<>1
  28. Row 7 / Column 9 → 6 (Naked Single)
  29. Row 1 / Column 7 → 8 (Naked Single)
  30. Row 2 / Column 7 → 8 (Naked Single)
  31. Row 1 / Column 9 → 1 (Naked Single)
  32. Row 2 / Column 9 → 1 (Naked Single)
  33. Row 7 / Column 7 → 1 (Naked Single)
  34. Row 9 / Column 8 → 7 (Naked Single)
  35. Row 5 / Column 8 → 8 (Naked Single)
  36. Row 5 / Column 1 → 7 (Full House)
  37. Row 6 / Column 8 → 6 (Full House)
  38. Row 9 / Column 7 → 3 (Naked Single)
  39. Row 9 / Column 9 → 3 (Naked Single)
  40. Row 6 / Column 1 → 8 (Naked Single)
  41. Row 3 / Column 1 → 6 (Full House)
  42. Row 6 / Column 5 → 7 (Naked Single)
  43. Row 1 / Column 2 → 4 (Naked Single)
  44. Row 1 / Column 6 → 6 (Full House)
  45. Row 2 / Column 2 → 2 (Naked Single)
  46. Row 2 / Column 3 → 2 (Naked Single)
  47. Row 4 / Column 5 → 8 (Naked Single)
  48. Row 6 / Column 7 → 4 (Naked Single)
  49. Row 6 / Column 9 → 4 (Naked Single)
  50. Row 3 / Column 3 → 2 (Naked Single)
  51. Row 4 / Column 2 → 6 (Naked Single)
  52. Row 4 / Column 7 → 7 (Full House)
  53. Row 4 / Column 9 → 7 (Full House)
  54. Row 6 / Column 2 → 2 (Naked Single)
  55. Row 2 / Column 6 → 2 (Naked Single)
  56. Row 6 / Column 3 → 4 (Naked Single)
  57. Row 3 / Column 5 → 1 (Naked Single)
  58. Row 9 / Column 5 → 2 (Full House)
  59. Row 9 / Column 6 → 1 (Naked Single)
  60. Row 3 / Column 2 → 8 (Naked Single)
  61. Row 3 / Column 6 → 4 (Naked Single)
Show More...