Solution for Hard Sudoku #1446215978398

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

This Sudoku Puzzle has 62 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 9 / Column 6 → 1 (Naked Single)
  2. Row 8 / Column 6 → 4 (Naked Single)
  3. Row 4 / Column 6 → 5 (Naked Single)
  4. Row 7 / Column 6 → 2 (Naked Single)
  5. Row 3 / Column 6 → 8 (Full House)
  6. Row 6 / Column 5 → 8 (Hidden Single)
  7. Row 2 / Column 8 → 3 (Hidden Single)
  8. Row 4 / Column 7 → 4 (Hidden Single)
  9. Row 5 / Column 5 → 4 (Hidden Single)
  10. Row 3 / Column 4 → 4 (Hidden Single)
  11. Row 7 / Column 1 → 4 (Hidden Single)
  12. Row 7 / Column 3 → 5 (Hidden Single)
  13. Row 1 / Column 9 → 8 (Hidden Single)
  14. Row 2 / Column 1 → 8 (Hidden Single)
  15. Row 9 / Column 3 → 8 (Hidden Single)
  16. Row 7 / Column 8 → 8 (Hidden Single)
  17. Locked Candidates Type 1 (Pointing): 1 in b3 => r3c5<>1
  18. Locked Candidates Type 1 (Pointing): 3 in b4 => r8c1<>3
  19. Locked Candidates Type 1 (Pointing): 9 in b9 => r23c9<>9
  20. Locked Candidates Type 2 (Claiming): 6 in c7 => r23c9,r3c8<>6
  21. 2-String Kite: 7 in r4c9,r7c4 (connected by r4c5,r6c4) => r7c9<>7
  22. Turbot Fish: 7 r4c5 =7= r4c9 -7- r8c9 =7= r9c8 => r9c5<>7
  23. XY-Wing: 1/9/7 in r1c47,r6c4 => r6c7<>7
  24. Row 6 / Column 7 → 2 (Naked Single)
  25. Row 5 / Column 1 → 2 (Hidden Single)
  26. Row 5 / Column 2 → 5 (Hidden Single)
  27. Row 3 / Column 1 → 5 (Hidden Single)
  28. Row 1 / Column 5 → 5 (Hidden Single)
  29. Row 4 / Column 3 → 6 (Hidden Single)
  30. Row 2 / Column 9 → 5 (Hidden Single)
  31. Row 1 / Column 4 → 1 (Hidden Single)
  32. Row 6 / Column 4 → 7 (Naked Single)
  33. Row 4 / Column 5 → 1 (Full House)
  34. Row 4 / Column 1 → 3 (Naked Single)
  35. Row 4 / Column 9 → 7 (Full House)
  36. Row 2 / Column 5 → 2 (Hidden Single)
  37. Row 3 / Column 9 → 2 (Hidden Single)
  38. Row 6 / Column 9 → 3 (Hidden Single)
  39. Row 9 / Column 8 → 7 (Hidden Single)
  40. Row 3 / Column 8 → 1 (Naked Single)
  41. Row 5 / Column 8 → 6 (Full House)
  42. Row 5 / Column 9 → 1 (Full House)
  43. Row 9 / Column 1 → 9 (Naked Single)
  44. Row 9 / Column 5 → 6 (Full House)
  45. Row 6 / Column 1 → 1 (Naked Single)
  46. Row 6 / Column 3 → 9 (Full House)
  47. Row 8 / Column 3 → 1 (Full House)
  48. Row 8 / Column 1 → 7 (Full House)
  49. Row 3 / Column 5 → 9 (Naked Single)
  50. Row 2 / Column 4 → 6 (Full House)
  51. Row 7 / Column 4 → 9 (Full House)
  52. Row 2 / Column 7 → 9 (Full House)
  53. Row 3 / Column 2 → 7 (Naked Single)
  54. Row 1 / Column 2 → 9 (Full House)
  55. Row 1 / Column 7 → 7 (Full House)
  56. Row 3 / Column 7 → 6 (Full House)
  57. Row 8 / Column 5 → 3 (Naked Single)
  58. Row 7 / Column 5 → 7 (Full House)
  59. Row 7 / Column 9 → 6 (Naked Single)
  60. Row 7 / Column 2 → 3 (Full House)
  61. Row 8 / Column 2 → 6 (Full House)
  62. Row 8 / Column 9 → 9 (Full House)
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