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

This Sudoku Puzzle has 46 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Pair, Give Up techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 3 / Column 8 → 5 (Naked Single)
2. Row 1 / Column 8 → 3 (Full House)
3. Row 7 / Column 8 → 5 (Naked Single)
4. Row 4 / Column 9 → 7 (Hidden Single)
5. Row 9 / Column 8 → 2 (Hidden Single)
6. Row 8 / Column 5 → 7 (Hidden Single)
7. Row 6 / Column 9 → 5 (Hidden Single)
8. Row 4 / Column 7 → 2 (Naked Single)
9. Row 5 / Column 7 → 3 (Naked Single)
10. Row 6 / Column 7 → 4 (Full House)
11. Row 7 / Column 7 → 6 (Full House)
12. Row 8 / Column 7 → 6 (Full House)
13. Locked Pair: 6,8 in r3c12 => r2c1,r3c46<>6, r1c23,r3c46<>8
14. Row 9 / Column 2 → 6 (Hidden Single)
15. Row 9 / Column 4 → 5 (Full House)
16. Row 9 / Column 6 → 5 (Full House)
17. Row 3 / Column 2 → 8 (Naked Single)
18. Row 3 / Column 1 → 6 (Naked Single)
19. Row 7 / Column 2 → 3 (Naked Single)
20. Row 2 / Column 4 → 6 (Hidden Single)
21. Row 2 / Column 5 → 5 (Naked Single)
22. Row 4 / Column 5 → 1 (Naked Single)
23. Row 6 / Column 5 → 6 (Full House)
24. Row 6 / Column 6 → 2 (Naked Single)
25. Row 5 / Column 4 → 8 (Full House)
26. Row 5 / Column 6 → 8 (Full House)
27. Row 2 / Column 6 → 7 (Naked Single)
28. Row 6 / Column 1 → 3 (Naked Single)
29. Row 6 / Column 3 → 1 (Full House)
30. Row 1 / Column 4 → 2 (Naked Single)
31. Row 1 / Column 6 → 7 (Naked Single)
32. Row 2 / Column 1 → 2 (Naked Single)
33. Row 2 / Column 3 → 3 (Full House)
34. Row 1 / Column 3 → 5 (Full House)
35. Row 1 / Column 2 → 5 (Full House)
36. Row 4 / Column 3 → 8 (Naked Single)
37. Row 4 / Column 1 → 5 (Full House)
38. Row 8 / Column 3 → 2 (Full House)
39. Row 8 / Column 2 → 2 (Naked Single)
40. Row 5 / Column 1 → 7 (Full House)
41. Row 8 / Column 1 → 8 (Full House)
42. Row 5 / Column 2 → 7 (Full House)
43. Row 8 / Column 9 → 4 (Naked Single)
44. Row 7 / Column 9 → 8 (Full House)
45. Row 8 / Column 4 → 3 (Naked Single)
46. Give Up: Don't know how to proceed!