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

This Sudoku Puzzle has 65 steps and it is solved using Hidden Single, Naked Single, Locked Pair, Locked Candidates Type 1 (Pointing), undefined, Locked Candidates Type 2 (Claiming), Full House techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 6 / Column 8 → 7 (Hidden Single)
  2. Row 5 / Column 3 → 7 (Hidden Single)
  3. Row 8 / Column 6 → 7 (Hidden Single)
  4. Row 8 / Column 7 → 6 (Naked Single)
  5. Row 8 / Column 9 → 1 (Naked Single)
  6. Row 8 / Column 8 → 9 (Naked Single)
  7. Row 9 / Column 4 → 6 (Hidden Single)
  8. Row 9 / Column 1 → 1 (Hidden Single)
  9. Row 4 / Column 4 → 9 (Hidden Single)
  10. Locked Pair: 4,6 in r45c8 => r12c8,r5c9<>6, r5c9<>4
  11. Row 2 / Column 3 → 6 (Hidden Single)
  12. Row 1 / Column 9 → 6 (Hidden Single)
  13. Row 5 / Column 1 → 6 (Hidden Single)
  14. Row 5 / Column 8 → 4 (Naked Single)
  15. Row 4 / Column 8 → 6 (Naked Single)
  16. Row 5 / Column 2 → 9 (Hidden Single)
  17. Row 5 / Column 6 → 8 (Hidden Single)
  18. Row 5 / Column 5 → 2 (Hidden Single)
  19. Locked Candidates Type 1 (Pointing): 3 in b5 => r2c6<>3
  20. Locked Candidates Type 1 (Pointing): 8 in b9 => r13c7<>8
  21. 2-String Kite: 2 in r2c6,r8c2 (connected by r8c4,r9c6) => r2c2<>2
  22. Locked Candidates Type 2 (Claiming): 2 in r2 => r13c4<>2
  23. W-Wing: 5/2 in r2c6,r8c2 connected by 2 in r9c36 => r2c2<>5
  24. Locked Candidates Type 2 (Claiming): 5 in r2 => r1c45,r3c45<>5
  25. W-Wing: 2/5 in r2c6,r8c4 connected by 5 in r6c46 => r2c4,r9c6<>2
  26. Row 9 / Column 6 → 4 (Naked Single)
  27. Row 4 / Column 6 → 3 (Naked Single)
  28. Row 9 / Column 5 → 9 (Naked Single)
  29. Row 9 / Column 9 → 3 (Naked Single)
  30. Row 4 / Column 3 → 8 (Naked Single)
  31. Row 4 / Column 2 → 4 (Full House)
  32. Row 6 / Column 6 → 5 (Naked Single)
  33. Row 2 / Column 6 → 2 (Full House)
  34. Row 6 / Column 4 → 4 (Full House)
  35. Row 7 / Column 5 → 5 (Naked Single)
  36. Row 8 / Column 4 → 2 (Full House)
  37. Row 8 / Column 2 → 5 (Full House)
  38. Row 5 / Column 9 → 5 (Naked Single)
  39. Row 5 / Column 7 → 3 (Full House)
  40. Row 9 / Column 7 → 8 (Naked Single)
  41. Row 9 / Column 3 → 2 (Full House)
  42. Row 6 / Column 1 → 2 (Naked Single)
  43. Row 6 / Column 2 → 3 (Full House)
  44. Row 7 / Column 3 → 9 (Naked Single)
  45. Row 7 / Column 1 → 8 (Full House)
  46. Row 3 / Column 9 → 7 (Naked Single)
  47. Row 7 / Column 9 → 4 (Full House)
  48. Row 7 / Column 7 → 7 (Full House)
  49. Row 3 / Column 3 → 5 (Naked Single)
  50. Row 1 / Column 3 → 3 (Full House)
  51. Row 1 / Column 1 → 4 (Naked Single)
  52. Row 3 / Column 1 → 9 (Full House)
  53. Row 3 / Column 4 → 8 (Naked Single)
  54. Row 3 / Column 7 → 2 (Naked Single)
  55. Row 1 / Column 7 → 5 (Full House)
  56. Row 1 / Column 5 → 1 (Naked Single)
  57. Row 1 / Column 4 → 7 (Naked Single)
  58. Row 2 / Column 4 → 5 (Full House)
  59. Row 3 / Column 2 → 1 (Naked Single)
  60. Row 3 / Column 5 → 4 (Full House)
  61. Row 2 / Column 5 → 3 (Full House)
  62. Row 1 / Column 8 → 8 (Naked Single)
  63. Row 1 / Column 2 → 2 (Full House)
  64. Row 2 / Column 2 → 8 (Full House)
  65. Row 2 / Column 8 → 1 (Full House)
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