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

This Sudoku Puzzle has 60 steps and it is solved using Hidden Single, Naked Single, Full House, Naked Triple, undefined, Locked Candidates Type 1 (Pointing) techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 5 / Column 2 → 8 (Hidden Single)
  2. Row 8 / Column 1 → 7 (Hidden Single)
  3. Row 7 / Column 8 → 1 (Hidden Single)
  4. Row 6 / Column 3 → 6 (Hidden Single)
  5. Row 6 / Column 5 → 7 (Hidden Single)
  6. Row 7 / Column 6 → 7 (Hidden Single)
  7. Row 9 / Column 8 → 7 (Hidden Single)
  8. Row 5 / Column 9 → 7 (Hidden Single)
  9. Row 6 / Column 6 → 9 (Hidden Single)
  10. Row 4 / Column 7 → 9 (Hidden Single)
  11. Row 1 / Column 6 → 5 (Hidden Single)
  12. Row 4 / Column 4 → 5 (Hidden Single)
  13. Row 5 / Column 6 → 6 (Hidden Single)
  14. Row 4 / Column 5 → 1 (Hidden Single)
  15. Row 3 / Column 4 → 1 (Hidden Single)
  16. Row 2 / Column 1 → 1 (Hidden Single)
  17. Row 3 / Column 8 → 8 (Hidden Single)
  18. Row 2 / Column 5 → 8 (Hidden Single)
  19. Row 1 / Column 1 → 9 (Hidden Single)
  20. Row 1 / Column 8 → 3 (Hidden Single)
  21. Row 5 / Column 8 → 2 (Naked Single)
  22. Row 5 / Column 4 → 3 (Full House)
  23. Row 6 / Column 4 → 2 (Full House)
  24. Row 2 / Column 2 → 6 (Hidden Single)
  25. Row 2 / Column 8 → 9 (Hidden Single)
  26. Row 2 / Column 3 → 5 (Hidden Single)
  27. Naked Triple: 2,3,4 in r78c3,r9c2 => r78c2<>2, r78c2<>4, r8c2<>3
  28. 2-String Kite: 2 in r1c2,r9c6 (connected by r1c5,r3c6) => r9c2<>2
  29. Locked Candidates Type 1 (Pointing): 2 in b7 => r4c3<>2
  30. Row 4 / Column 1 → 2 (Hidden Single)
  31. 2-String Kite: 4 in r1c2,r9c6 (connected by r1c4,r3c6) => r9c2<>4
  32. Row 9 / Column 2 → 3 (Naked Single)
  33. Row 3 / Column 1 → 3 (Hidden Single)
  34. Row 6 / Column 1 → 4 (Full House)
  35. Row 4 / Column 3 → 3 (Full House)
  36. Row 4 / Column 9 → 4 (Full House)
  37. Row 6 / Column 8 → 5 (Naked Single)
  38. Row 8 / Column 8 → 4 (Full House)
  39. Row 2 / Column 9 → 2 (Naked Single)
  40. Row 2 / Column 7 → 4 (Full House)
  41. Row 8 / Column 3 → 2 (Naked Single)
  42. Row 7 / Column 3 → 4 (Full House)
  43. Row 8 / Column 5 → 6 (Naked Single)
  44. Row 1 / Column 5 → 2 (Full House)
  45. Row 7 / Column 4 → 9 (Naked Single)
  46. Row 1 / Column 2 → 4 (Naked Single)
  47. Row 1 / Column 4 → 6 (Full House)
  48. Row 3 / Column 6 → 4 (Full House)
  49. Row 3 / Column 2 → 2 (Full House)
  50. Row 9 / Column 6 → 2 (Full House)
  51. Row 7 / Column 2 → 5 (Naked Single)
  52. Row 7 / Column 7 → 2 (Full House)
  53. Row 8 / Column 2 → 9 (Full House)
  54. Row 8 / Column 4 → 8 (Naked Single)
  55. Row 9 / Column 4 → 4 (Full House)
  56. Row 9 / Column 7 → 8 (Full House)
  57. Row 8 / Column 9 → 3 (Naked Single)
  58. Row 6 / Column 9 → 8 (Full House)
  59. Row 6 / Column 7 → 3 (Full House)
  60. Row 8 / Column 7 → 5 (Full House)
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