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

This Sudoku Puzzle has 63 steps and it is solved using Naked Single, Hidden Single, Locked Candidates Type 1 (Pointing), Full House, undefined techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 4 / Column 5 → 7 (Naked Single)
  2. Row 4 / Column 7 → 8 (Naked Single)
  3. Row 6 / Column 5 → 4 (Naked Single)
  4. Row 4 / Column 8 → 1 (Naked Single)
  5. Row 3 / Column 6 → 5 (Hidden Single)
  6. Row 3 / Column 9 → 6 (Hidden Single)
  7. Row 4 / Column 9 → 5 (Hidden Single)
  8. Row 8 / Column 7 → 6 (Hidden Single)
  9. Row 8 / Column 5 → 5 (Hidden Single)
  10. Row 7 / Column 9 → 1 (Hidden Single)
  11. Row 9 / Column 2 → 5 (Hidden Single)
  12. Row 1 / Column 2 → 1 (Hidden Single)
  13. Row 2 / Column 4 → 1 (Hidden Single)
  14. Locked Candidates Type 1 (Pointing): 9 in b2 => r2c13<>9
  15. Locked Candidates Type 1 (Pointing): 3 in b5 => r5c29<>3
  16. Row 7 / Column 2 → 3 (Hidden Single)
  17. Row 6 / Column 9 → 3 (Hidden Single)
  18. Row 7 / Column 3 → 8 (Hidden Single)
  19. Row 3 / Column 2 → 8 (Hidden Single)
  20. Row 2 / Column 5 → 8 (Hidden Single)
  21. Row 1 / Column 5 → 2 (Naked Single)
  22. Row 7 / Column 5 → 9 (Full House)
  23. Row 7 / Column 1 → 6 (Hidden Single)
  24. Row 4 / Column 1 → 3 (Naked Single)
  25. Row 4 / Column 3 → 6 (Full House)
  26. Row 1 / Column 8 → 8 (Hidden Single)
  27. Row 3 / Column 1 → 9 (Hidden Single)
  28. Row 2 / Column 9 → 2 (Hidden Single)
  29. Row 2 / Column 6 → 9 (Hidden Single)
  30. Row 2 / Column 3 → 3 (Hidden Single)
  31. Row 8 / Column 1 → 2 (Hidden Single)
  32. Locked Candidates Type 1 (Pointing): 9 in b9 => r9c3<>9
  33. X-Wing: 4 c17 r29 => r9c3468<>4
  34. Locked Candidates Type 1 (Pointing): 4 in b8 => r7c8<>4
  35. X-Wing: 7 c29 r58 => r5c8,r8c3<>7
  36. W-Wing: 7/4 in r2c7,r5c9 connected by 4 in r35c8 => r6c7<>7
  37. Row 6 / Column 7 → 9 (Naked Single)
  38. Row 5 / Column 8 → 4 (Naked Single)
  39. Row 5 / Column 9 → 7 (Full House)
  40. Row 8 / Column 9 → 4 (Full House)
  41. Row 3 / Column 8 → 7 (Naked Single)
  42. Row 2 / Column 7 → 4 (Full House)
  43. Row 9 / Column 7 → 7 (Full House)
  44. Row 3 / Column 4 → 4 (Full House)
  45. Row 2 / Column 1 → 7 (Full House)
  46. Row 1 / Column 3 → 4 (Full House)
  47. Row 5 / Column 2 → 9 (Naked Single)
  48. Row 8 / Column 2 → 7 (Full House)
  49. Row 8 / Column 3 → 9 (Full House)
  50. Row 7 / Column 8 → 2 (Naked Single)
  51. Row 9 / Column 8 → 9 (Full House)
  52. Row 9 / Column 3 → 1 (Naked Single)
  53. Row 6 / Column 3 → 7 (Full House)
  54. Row 6 / Column 1 → 1 (Full House)
  55. Row 9 / Column 1 → 4 (Full House)
  56. Row 9 / Column 6 → 3 (Naked Single)
  57. Row 9 / Column 4 → 2 (Full House)
  58. Row 7 / Column 4 → 7 (Naked Single)
  59. Row 7 / Column 6 → 4 (Full House)
  60. Row 5 / Column 6 → 6 (Naked Single)
  61. Row 1 / Column 6 → 7 (Full House)
  62. Row 1 / Column 4 → 6 (Full House)
  63. Row 5 / Column 4 → 3 (Full House)
Show More...