Solution for Hard Sudoku #3189235174698

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

This Sudoku Puzzle has 63 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), undefined, Turbot Fish techniques.

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

Solution Steps:

  1. Row 4 / Column 1 → 3 (Naked Single)
  2. Row 4 / Column 2 → 8 (Naked Single)
  3. Row 4 / Column 3 → 2 (Naked Single)
  4. Row 4 / Column 6 → 5 (Naked Single)
  5. Row 4 / Column 7 → 4 (Full House)
  6. Row 2 / Column 8 → 6 (Hidden Single)
  7. Row 3 / Column 6 → 8 (Hidden Single)
  8. Row 5 / Column 5 → 8 (Hidden Single)
  9. Row 5 / Column 4 → 4 (Hidden Single)
  10. Row 6 / Column 7 → 8 (Hidden Single)
  11. Row 9 / Column 3 → 8 (Hidden Single)
  12. Row 7 / Column 3 → 5 (Hidden Single)
  13. Row 1 / Column 9 → 4 (Hidden Single)
  14. Row 9 / Column 8 → 4 (Hidden Single)
  15. Row 7 / Column 1 → 4 (Hidden Single)
  16. Row 2 / Column 3 → 4 (Hidden Single)
  17. Locked Candidates Type 1 (Pointing): 1 in b1 => r1c78<>1
  18. Locked Candidates Type 1 (Pointing): 3 in b3 => r5c7<>3
  19. Locked Candidates Type 1 (Pointing): 6 in b8 => r9c2<>6
  20. Locked Candidates Type 2 (Claiming): 9 in r3 => r1c78,r2c7<>9
  21. 2-String Kite: 7 in r1c6,r6c3 (connected by r5c6,r6c4) => r1c3<>7
  22. Turbot Fish: 7 r2c1 =7= r1c2 -7- r1c6 =7= r5c6 => r5c1<>7
  23. XY-Wing: 7/9/1 in r1c3,r29c1 => r8c3<>1
  24. XY-Wing: 1/3/7 in r36c9,r6c4 => r3c4<>7
  25. Row 3 / Column 4 → 2 (Naked Single)
  26. Row 9 / Column 5 → 2 (Hidden Single)
  27. Row 9 / Column 7 → 5 (Hidden Single)
  28. Row 8 / Column 5 → 5 (Hidden Single)
  29. Row 1 / Column 8 → 5 (Hidden Single)
  30. Row 5 / Column 9 → 5 (Hidden Single)
  31. Row 7 / Column 6 → 9 (Hidden Single)
  32. Row 1 / Column 7 → 2 (Hidden Single)
  33. Row 5 / Column 8 → 2 (Hidden Single)
  34. Row 5 / Column 6 → 3 (Hidden Single)
  35. Row 6 / Column 4 → 7 (Full House)
  36. Row 9 / Column 6 → 6 (Naked Single)
  37. Row 1 / Column 6 → 7 (Full House)
  38. Row 6 / Column 9 → 3 (Hidden Single)
  39. Row 2 / Column 7 → 3 (Hidden Single)
  40. Row 2 / Column 5 → 9 (Naked Single)
  41. Row 1 / Column 5 → 3 (Full House)
  42. Row 2 / Column 1 → 7 (Full House)
  43. Row 1 / Column 4 → 6 (Full House)
  44. Row 9 / Column 1 → 1 (Naked Single)
  45. Row 5 / Column 1 → 9 (Full House)
  46. Row 7 / Column 2 → 3 (Naked Single)
  47. Row 7 / Column 4 → 1 (Full House)
  48. Row 9 / Column 4 → 3 (Full House)
  49. Row 9 / Column 2 → 7 (Full House)
  50. Row 5 / Column 7 → 1 (Naked Single)
  51. Row 6 / Column 8 → 9 (Full House)
  52. Row 6 / Column 3 → 1 (Full House)
  53. Row 3 / Column 8 → 1 (Full House)
  54. Row 5 / Column 2 → 6 (Naked Single)
  55. Row 5 / Column 3 → 7 (Full House)
  56. Row 8 / Column 7 → 7 (Naked Single)
  57. Row 3 / Column 7 → 9 (Full House)
  58. Row 3 / Column 9 → 7 (Full House)
  59. Row 8 / Column 9 → 1 (Full House)
  60. Row 1 / Column 3 → 9 (Naked Single)
  61. Row 1 / Column 2 → 1 (Full House)
  62. Row 8 / Column 2 → 9 (Full House)
  63. Row 8 / Column 3 → 6 (Full House)
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