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

This Sudoku Puzzle has 62 steps and it is solved using Naked Single, Full House, Hidden Single, Naked Pair, undefined, Hidden Triple, Locked Candidates Type 2 (Claiming), Naked Triple, Naked Quadruple techniques.

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

Solution Steps:

  1. Row 2 / Column 8 → 5 (Naked Single)
  2. Row 1 / Column 1 → 6 (Naked Single)
  3. Row 3 / Column 7 → 6 (Naked Single)
  4. Row 3 / Column 9 → 2 (Full House)
  5. Row 5 / Column 5 → 6 (Hidden Single)
  6. Row 7 / Column 1 → 2 (Hidden Single)
  7. Row 7 / Column 5 → 3 (Naked Single)
  8. Row 3 / Column 4 → 5 (Hidden Single)
  9. Row 9 / Column 7 → 3 (Hidden Single)
  10. Row 7 / Column 4 → 7 (Hidden Single)
  11. Row 9 / Column 9 → 4 (Hidden Single)
  12. Naked Pair: 1,4 in r7c36 => r7c89<>1
  13. 2-String Kite: 3 in r3c6,r6c2 (connected by r5c6,r6c4) => r3c2<>3
  14. Hidden Triple: 3,4,8 in r2c12,r3c1 => r3c1<>1
  15. Locked Candidates Type 2 (Claiming): 1 in c1 => r456c2,r56c3<>1
  16. Row 6 / Column 3 → 9 (Naked Single)
  17. Naked Triple: 1,2,6 in r46c8,r6c9 => r5c89<>1, r5c8<>2
  18. Naked Quadruple: 4,5,7,9 in r5c3789 => r5c12<>4, r5c2<>5
  19. 2-String Kite: 1 in r6c9,r9c4 (connected by r8c9,r9c8) => r6c4<>1
  20. Locked Candidates Type 2 (Claiming): 1 in r6 => r4c8<>1
  21. W-Wing: 1/4 in r4c1,r7c6 connected by 4 in r57c3 => r4c6<>1
  22. Row 4 / Column 6 → 2 (Naked Single)
  23. Row 1 / Column 6 → 7 (Naked Single)
  24. Row 4 / Column 8 → 6 (Naked Single)
  25. Row 6 / Column 4 → 3 (Naked Single)
  26. Row 1 / Column 3 → 5 (Naked Single)
  27. Row 6 / Column 9 → 1 (Naked Single)
  28. Row 7 / Column 8 → 9 (Naked Single)
  29. Row 2 / Column 4 → 8 (Naked Single)
  30. Row 1 / Column 2 → 9 (Naked Single)
  31. Row 1 / Column 5 → 2 (Full House)
  32. Row 5 / Column 3 → 4 (Naked Single)
  33. Row 6 / Column 8 → 2 (Naked Single)
  34. Row 6 / Column 2 → 6 (Full House)
  35. Row 8 / Column 9 → 7 (Naked Single)
  36. Row 5 / Column 8 → 7 (Naked Single)
  37. Row 7 / Column 7 → 5 (Naked Single)
  38. Row 3 / Column 5 → 9 (Naked Single)
  39. Row 3 / Column 6 → 3 (Full House)
  40. Row 9 / Column 5 → 8 (Full House)
  41. Row 5 / Column 4 → 1 (Naked Single)
  42. Row 5 / Column 6 → 8 (Full House)
  43. Row 9 / Column 4 → 2 (Full House)
  44. Row 9 / Column 8 → 1 (Full House)
  45. Row 8 / Column 8 → 8 (Full House)
  46. Row 7 / Column 9 → 6 (Full House)
  47. Row 5 / Column 9 → 5 (Full House)
  48. Row 3 / Column 2 → 1 (Naked Single)
  49. Row 4 / Column 1 → 1 (Naked Single)
  50. Row 4 / Column 2 → 5 (Naked Single)
  51. Row 4 / Column 7 → 4 (Full House)
  52. Row 5 / Column 7 → 9 (Full House)
  53. Row 7 / Column 3 → 1 (Naked Single)
  54. Row 3 / Column 3 → 7 (Full House)
  55. Row 3 / Column 1 → 8 (Full House)
  56. Row 8 / Column 2 → 4 (Full House)
  57. Row 7 / Column 6 → 4 (Full House)
  58. Row 8 / Column 6 → 1 (Full House)
  59. Row 5 / Column 1 → 3 (Naked Single)
  60. Row 2 / Column 1 → 4 (Full House)
  61. Row 2 / Column 2 → 3 (Full House)
  62. Row 5 / Column 2 → 2 (Full House)
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