Solution for Hard Sudoku #1475489361298

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

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