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

This Sudoku Puzzle has 60 steps and it is solved using Naked Single, Hidden Single, Locked Candidates Type 1 (Pointing), Naked Triple, Hidden Pair, undefined, Locked Candidates Type 2 (Claiming), Naked Pair, Full House techniques.

Naked Single Explanation
Hidden Single Explanation
Hidden Pair Explanation
Locked Candidates Explanation
Locked Candidates Explanation
Full House Explanation
Try To Solve This Puzzle

Solution Steps:

  1. Row 7 / Column 2 → 9 (Naked Single)
  2. Row 7 / Column 3 → 2 (Naked Single)
  3. Row 8 / Column 2 → 7 (Hidden Single)
  4. Row 3 / Column 7 → 4 (Hidden Single)
  5. Row 5 / Column 1 → 7 (Hidden Single)
  6. Row 4 / Column 2 → 5 (Hidden Single)
  7. Row 4 / Column 5 → 8 (Hidden Single)
  8. Row 5 / Column 2 → 8 (Hidden Single)
  9. Locked Candidates Type 1 (Pointing): 1 in b3 => r56c8<>1
  10. Locked Candidates Type 1 (Pointing): 2 in b9 => r5c9<>2
  11. Naked Triple: 1,3,4 in r6c389 => r6c456<>3, r6c456<>4, r6c56<>1
  12. Locked Candidates Type 1 (Pointing): 4 in b5 => r5c89<>4
  13. Hidden Pair: 5,7 in r16c4 => r1c4<>4, r16c4<>9
  14. Row 9 / Column 4 → 9 (Hidden Single)
  15. 2-String Kite: 2 in r3c6,r4c7 (connected by r2c7,r3c8) => r4c6<>2
  16. 2-String Kite: 3 in r3c6,r4c1 (connected by r2c1,r3c2) => r4c6<>3
  17. 2-String Kite: 3 in r4c4,r8c3 (connected by r4c1,r6c3) => r8c4<>3
  18. Locked Candidates Type 2 (Claiming): 3 in c4 => r5c56<>3
  19. Naked Pair: 2,4 in r8c49 => r8c5<>2, r8c5<>4
  20. Locked Candidates Type 1 (Pointing): 4 in b8 => r5c4<>4
  21. 2-String Kite: 6 in r5c9,r7c4 (connected by r7c8,r9c9) => r5c4<>6
  22. W-Wing: 1/6 in r4c6,r5c9 connected by 6 in r9c69 => r5c56<>1
  23. Row 5 / Column 9 → 1 (Hidden Single)
  24. Row 6 / Column 9 → 4 (Naked Single)
  25. Row 6 / Column 8 → 3 (Naked Single)
  26. Row 8 / Column 9 → 2 (Naked Single)
  27. Row 9 / Column 9 → 6 (Full House)
  28. Row 7 / Column 8 → 4 (Full House)
  29. Row 7 / Column 4 → 6 (Full House)
  30. Row 6 / Column 3 → 1 (Naked Single)
  31. Row 4 / Column 1 → 3 (Full House)
  32. Row 8 / Column 3 → 3 (Full House)
  33. Row 9 / Column 2 → 1 (Full House)
  34. Row 3 / Column 2 → 3 (Full House)
  35. Row 8 / Column 4 → 4 (Naked Single)
  36. Row 8 / Column 5 → 1 (Full House)
  37. Row 2 / Column 1 → 5 (Naked Single)
  38. Row 1 / Column 1 → 1 (Full House)
  39. Row 4 / Column 4 → 2 (Naked Single)
  40. Row 3 / Column 6 → 2 (Naked Single)
  41. Row 3 / Column 8 → 1 (Full House)
  42. Row 1 / Column 8 → 9 (Naked Single)
  43. Row 4 / Column 7 → 6 (Naked Single)
  44. Row 2 / Column 7 → 2 (Full House)
  45. Row 4 / Column 6 → 1 (Full House)
  46. Row 5 / Column 8 → 2 (Full House)
  47. Row 2 / Column 8 → 6 (Full House)
  48. Row 5 / Column 4 → 3 (Naked Single)
  49. Row 5 / Column 5 → 4 (Naked Single)
  50. Row 5 / Column 6 → 6 (Full House)
  51. Row 9 / Column 6 → 3 (Naked Single)
  52. Row 9 / Column 5 → 2 (Full House)
  53. Row 1 / Column 5 → 7 (Naked Single)
  54. Row 2 / Column 6 → 9 (Naked Single)
  55. Row 2 / Column 5 → 3 (Full House)
  56. Row 6 / Column 5 → 9 (Full House)
  57. Row 1 / Column 4 → 5 (Naked Single)
  58. Row 1 / Column 6 → 4 (Full House)
  59. Row 6 / Column 6 → 5 (Full House)
  60. Row 6 / Column 4 → 7 (Full House)
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