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

This Sudoku Puzzle has 49 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), undefined, Turbot Fish, Naked Single, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 7 / Column 7 → 2 (Hidden Single)
2. Row 7 / Column 2 → 8 (Hidden Single)
3. Row 9 / Column 7 → 8 (Hidden Single)
4. Locked Candidates Type 1 (Pointing): 7 in b1 => r3c5<>7
5. Locked Candidates Type 1 (Pointing): 4 in b6 => r8c9<>4
6. Locked Candidates Type 1 (Pointing): 6 in b7 => r23c1<>6
7. Locked Candidates Type 2 (Claiming): 5 in c3 => r23c1,r3c2<>5
8. 2-String Kite: 3 in r4c1,r7c6 (connected by r4c5,r6c6) => r7c1<>3
9. Turbot Fish: 3 r4c5 =3= r4c1 -3- r8c1 =3= r9c2 => r9c5<>3
10. XY-Wing: 6/7/3 in r1c36,r6c6 => r6c3<>3
11. Row 6 / Column 3 → 1 (Naked Single)
12. Row 5 / Column 9 → 1 (Hidden Single)
13. Row 5 / Column 8 → 2 (Hidden Single)
14. Row 3 / Column 9 → 2 (Hidden Single)
15. Row 1 / Column 5 → 2 (Hidden Single)
16. Row 4 / Column 7 → 5 (Hidden Single)
17. Row 2 / Column 1 → 2 (Hidden Single)
18. Row 1 / Column 6 → 7 (Hidden Single)
19. Row 6 / Column 6 → 3 (Naked Single)
20. Row 4 / Column 5 → 7 (Full House)
21. Row 4 / Column 9 → 4 (Naked Single)
22. Row 4 / Column 1 → 3 (Full House)
23. Row 2 / Column 5 → 1 (Hidden Single)
24. Row 3 / Column 1 → 1 (Hidden Single)
25. Row 6 / Column 1 → 4 (Hidden Single)
26. Row 9 / Column 2 → 3 (Hidden Single)
27. Row 3 / Column 2 → 7 (Naked Single)
28. Row 5 / Column 2 → 5 (Full House)
29. Row 5 / Column 1 → 7 (Full House)
30. Row 9 / Column 9 → 6 (Naked Single)
31. Row 9 / Column 5 → 5 (Full House)
32. Row 6 / Column 9 → 7 (Naked Single)
33. Row 6 / Column 7 → 6 (Full House)
34. Row 8 / Column 7 → 7 (Full House)
35. Row 8 / Column 9 → 3 (Full House)
36. Row 3 / Column 5 → 6 (Naked Single)
37. Row 2 / Column 6 → 5 (Full House)
38. Row 7 / Column 6 → 6 (Full House)
39. Row 2 / Column 3 → 6 (Full House)
40. Row 3 / Column 8 → 3 (Naked Single)
41. Row 1 / Column 8 → 6 (Full House)
42. Row 1 / Column 3 → 3 (Full House)
43. Row 3 / Column 3 → 5 (Full House)
44. Row 8 / Column 5 → 4 (Naked Single)
45. Row 7 / Column 5 → 3 (Full House)
46. Row 7 / Column 1 → 5 (Naked Single)
47. Row 7 / Column 8 → 4 (Full House)
48. Row 8 / Column 8 → 5 (Full House)
49. Row 8 / Column 1 → 6 (Full House)