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

This Sudoku Puzzle has 44 steps and it is solved using Locked Candidates Type 1 (Pointing), Naked Pair, undefined, Hidden Single, Naked Single, Full House, Locked Candidates Type 2 (Claiming), Hidden Pair techniques.

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

Solution Steps:

  1. Locked Candidates Type 1 (Pointing): 6 in b1 => r2c8<>6
  2. Naked Pair: 6,9 in r19c9 => r58c9<>9, r8c9<>6
  3. X-Wing: 8 r47 c48 => r568c8,r6c4<>8
  4. Row 6 / Column 2 → 8 (Hidden Single)
  5. Row 5 / Column 1 → 7 (Naked Single)
  6. Row 2 / Column 1 → 8 (Full House)
  7. Row 4 / Column 3 → 1 (Naked Single)
  8. Row 5 / Column 2 → 3 (Naked Single)
  9. Row 6 / Column 3 → 5 (Full House)
  10. Row 8 / Column 2 → 5 (Hidden Single)
  11. Locked Candidates Type 1 (Pointing): 7 in b5 => r8c6<>7
  12. Locked Candidates Type 2 (Claiming): 3 in c5 => r2c4<>3
  13. Naked Pair: 2,9 in r8c67 => r8c58<>9, r8c8<>2
  14. Hidden Pair: 2,8 in r47c8 => r4c8<>7, r4c8<>9
  15. Row 4 / Column 6 → 7 (Hidden Single)
  16. Row 6 / Column 6 → 3 (Naked Single)
  17. Row 6 / Column 4 → 1 (Naked Single)
  18. Row 6 / Column 8 → 7 (Full House)
  19. Row 7 / Column 6 → 2 (Naked Single)
  20. Row 8 / Column 6 → 9 (Full House)
  21. Row 2 / Column 4 → 9 (Naked Single)
  22. Row 7 / Column 8 → 8 (Naked Single)
  23. Row 7 / Column 4 → 3 (Full House)
  24. Row 4 / Column 4 → 8 (Full House)
  25. Row 5 / Column 5 → 9 (Full House)
  26. Row 8 / Column 7 → 2 (Naked Single)
  27. Row 4 / Column 7 → 9 (Full House)
  28. Row 4 / Column 8 → 2 (Full House)
  29. Row 9 / Column 5 → 7 (Naked Single)
  30. Row 8 / Column 5 → 8 (Full House)
  31. Row 1 / Column 5 → 3 (Naked Single)
  32. Row 2 / Column 5 → 1 (Full House)
  33. Row 2 / Column 8 → 3 (Naked Single)
  34. Row 8 / Column 9 → 1 (Naked Single)
  35. Row 5 / Column 8 → 1 (Naked Single)
  36. Row 5 / Column 9 → 8 (Full House)
  37. Row 9 / Column 2 → 6 (Naked Single)
  38. Row 2 / Column 2 → 7 (Full House)
  39. Row 8 / Column 3 → 7 (Full House)
  40. Row 8 / Column 8 → 6 (Full House)
  41. Row 9 / Column 9 → 9 (Full House)
  42. Row 2 / Column 3 → 6 (Full House)
  43. Row 1 / Column 8 → 9 (Full House)
  44. Row 1 / Column 9 → 6 (Full House)
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