Solution for Medium Sudoku #21431675982103

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

This Sudoku Puzzle has 65 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Triple, Naked Single, Full House techniques.

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

Solution Steps:

  1. Row 4 / Column 5 → 9 (Hidden Single)
  2. Row 6 / Column 3 → 6 (Hidden Single)
  3. Row 5 / Column 2 → 7 (Hidden Single)
  4. Row 7 / Column 6 → 7 (Hidden Single)
  5. Row 1 / Column 5 → 7 (Hidden Single)
  6. Row 4 / Column 7 → 5 (Hidden Single)
  7. Row 6 / Column 5 → 5 (Hidden Single)
  8. Row 4 / Column 3 → 2 (Hidden Single)
  9. Row 5 / Column 1 → 8 (Hidden Single)
  10. Row 3 / Column 7 → 7 (Hidden Single)
  11. Row 8 / Column 6 → 8 (Hidden Single)
  12. Row 2 / Column 2 → 8 (Hidden Single)
  13. Row 7 / Column 3 → 8 (Hidden Single)
  14. Locked Candidates Type 1 (Pointing): 9 in b1 => r3c4689<>9
  15. Locked Candidates Type 1 (Pointing): 9 in b3 => r1c46<>9
  16. Locked Candidates Type 1 (Pointing): 2 in b5 => r5c9<>2
  17. Locked Candidates Type 1 (Pointing): 4 in b5 => r5c8<>4
  18. Locked Candidates Type 1 (Pointing): 2 in b9 => r7c4<>2
  19. Naked Triple: 1,3,4 in r12c7,r3c8 => r1c89,r3c9<>3, r1c8<>4, r3c9<>1
  20. Row 3 / Column 9 → 6 (Naked Single)
  21. Row 9 / Column 2 → 6 (Hidden Single)
  22. Row 2 / Column 1 → 6 (Hidden Single)
  23. Locked Candidates Type 1 (Pointing): 3 in b1 => r3c48<>3
  24. Locked Candidates Type 1 (Pointing): 4 in b1 => r3c468<>4
  25. Row 3 / Column 8 → 1 (Naked Single)
  26. Row 5 / Column 8 → 3 (Naked Single)
  27. Row 5 / Column 9 → 1 (Naked Single)
  28. Row 6 / Column 8 → 4 (Hidden Single)
  29. Row 6 / Column 7 → 2 (Naked Single)
  30. Row 6 / Column 9 → 8 (Full House)
  31. Row 1 / Column 9 → 9 (Naked Single)
  32. Row 1 / Column 8 → 8 (Naked Single)
  33. Row 8 / Column 9 → 3 (Naked Single)
  34. Row 7 / Column 9 → 2 (Full House)
  35. Row 7 / Column 7 → 1 (Naked Single)
  36. Row 4 / Column 2 → 1 (Hidden Single)
  37. Row 4 / Column 1 → 4 (Full House)
  38. Row 3 / Column 1 → 3 (Naked Single)
  39. Row 7 / Column 1 → 5 (Naked Single)
  40. Row 9 / Column 1 → 1 (Full House)
  41. Row 7 / Column 8 → 9 (Naked Single)
  42. Row 8 / Column 8 → 5 (Full House)
  43. Row 7 / Column 2 → 4 (Naked Single)
  44. Row 3 / Column 2 → 9 (Full House)
  45. Row 7 / Column 4 → 3 (Full House)
  46. Row 3 / Column 3 → 4 (Full House)
  47. Row 8 / Column 3 → 9 (Naked Single)
  48. Row 9 / Column 3 → 3 (Full House)
  49. Row 9 / Column 5 → 2 (Naked Single)
  50. Row 5 / Column 5 → 4 (Naked Single)
  51. Row 8 / Column 5 → 1 (Naked Single)
  52. Row 2 / Column 5 → 3 (Full House)
  53. Row 8 / Column 4 → 4 (Full House)
  54. Row 2 / Column 7 → 4 (Naked Single)
  55. Row 1 / Column 7 → 3 (Full House)
  56. Row 1 / Column 4 → 6 (Naked Single)
  57. Row 1 / Column 6 → 4 (Full House)
  58. Row 2 / Column 6 → 9 (Naked Single)
  59. Row 2 / Column 4 → 1 (Full House)
  60. Row 5 / Column 4 → 2 (Naked Single)
  61. Row 5 / Column 6 → 6 (Full House)
  62. Row 9 / Column 6 → 5 (Naked Single)
  63. Row 3 / Column 6 → 2 (Full House)
  64. Row 3 / Column 4 → 5 (Full House)
  65. Row 9 / Column 4 → 9 (Full House)
Show More...