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

This Sudoku Puzzle has 45 steps and it is solved using Locked Candidates Type 1 (Pointing), Naked Pair, Naked Triple, Hidden Single, Naked Single, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Locked Candidates Type 1 (Pointing): 1 in b1 => r46c2<>1
2. Naked Pair: 6,7 in r27c1 => r34c1<>7, r45c1<>6
3. Naked Triple: 4,8,9 in r1c13,r3c1 => r3c2<>4
4. Locked Candidates Type 1 (Pointing): 4 in b1 => r45c1<>4
5. Row 5 / Column 6 → 4 (Hidden Single)
6. Row 1 / Column 6 → 8 (Naked Single)
7. Row 1 / Column 3 → 9 (Naked Single)
8. Row 1 / Column 1 → 4 (Full House)
9. Row 9 / Column 6 → 3 (Naked Single)
10. Row 3 / Column 1 → 8 (Naked Single)
11. Row 9 / Column 4 → 2 (Naked Single)
12. Row 9 / Column 9 → 8 (Full House)
13. Row 5 / Column 1 → 3 (Naked Single)
14. Row 8 / Column 8 → 6 (Naked Single)
15. Row 4 / Column 1 → 9 (Naked Single)
16. Row 5 / Column 4 → 1 (Naked Single)
17. Row 6 / Column 8 → 4 (Naked Single)
18. Row 4 / Column 8 → 8 (Full House)
19. Row 8 / Column 3 → 7 (Naked Single)
20. Row 7 / Column 1 → 6 (Full House)
21. Row 2 / Column 1 → 7 (Full House)
22. Row 8 / Column 9 → 5 (Naked Single)
23. Row 7 / Column 9 → 2 (Full House)
24. Row 5 / Column 9 → 6 (Naked Single)
25. Row 4 / Column 9 → 1 (Full House)
26. Row 5 / Column 3 → 8 (Full House)
27. Row 2 / Column 5 → 1 (Naked Single)
28. Row 2 / Column 2 → 6 (Full House)
29. Row 3 / Column 2 → 1 (Full House)
30. Row 8 / Column 6 → 1 (Naked Single)
31. Row 8 / Column 5 → 8 (Full House)
32. Row 4 / Column 3 → 6 (Naked Single)
33. Row 6 / Column 3 → 1 (Full House)
34. Row 3 / Column 6 → 7 (Naked Single)
35. Row 6 / Column 2 → 7 (Naked Single)
36. Row 4 / Column 2 → 4 (Full House)
37. Row 3 / Column 4 → 3 (Naked Single)
38. Row 3 / Column 5 → 4 (Full House)
39. Row 6 / Column 6 → 6 (Naked Single)
40. Row 7 / Column 6 → 5 (Full House)
41. Row 6 / Column 5 → 9 (Full House)
42. Row 4 / Column 4 → 7 (Naked Single)
43. Row 4 / Column 5 → 3 (Full House)
44. Row 7 / Column 5 → 7 (Full House)
45. Row 7 / Column 4 → 9 (Full House)