# Solution for Evil Sudoku #1371713524895

7
1
8
7
7
1
8
1
4
1
1
5
7
2
8
3
4
2
4
5
1
3
7
7
7
3

This Sudoku Puzzle has 57 steps and it is solved using Hidden Single, Locked Pair, Naked Single, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 3 / Column 8 → 7 (Hidden Single)
2. Row 6 / Column 2 → 7 (Hidden Single)
3. Row 1 / Column 3 → 4 (Hidden Single)
4. Row 2 / Column 8 → 3 (Hidden Single)
5. Locked Pair: 6,9 in r4c46 => r4c1378,r5c5,r6c46<>6, r4c1378,r5c5,r6c46<>9
6. Row 4 / Column 3 → 2 (Naked Single)
7. Row 4 / Column 8 → 1 (Naked Single)
8. Row 5 / Column 5 → 3 (Naked Single)
9. Row 6 / Column 4 → 4 (Naked Single)
10. Row 4 / Column 1 → 8 (Naked Single)
11. Row 4 / Column 7 → 8 (Naked Single)
12. Row 6 / Column 6 → 4 (Naked Single)
13. Row 9 / Column 7 → 1 (Hidden Single)
14. Row 8 / Column 3 → 1 (Hidden Single)
15. Row 3 / Column 6 → 3 (Hidden Single)
16. Row 6 / Column 3 → 3 (Hidden Single)
17. Row 7 / Column 5 → 4 (Hidden Single)
18. Row 9 / Column 9 → 8 (Hidden Single)
19. Row 5 / Column 3 → 5 (Hidden Single)
20. Row 2 / Column 7 → 4 (Hidden Single)
21. Row 8 / Column 9 → 2 (Hidden Single)
22. Row 5 / Column 1 → 6 (Hidden Single)
23. Row 5 / Column 7 → 9 (Full House)
24. Row 5 / Column 9 → 9 (Full House)
25. Locked Pair: 5,6 in r13c9 => r13c7,r6c9<>5, r13c7,r6c9<>6
26. Row 6 / Column 9 → 6 (Naked Single)
27. Row 1 / Column 7 → 2 (Naked Single)
28. Row 3 / Column 7 → 2 (Naked Single)
29. Row 1 / Column 9 → 5 (Naked Single)
30. Row 3 / Column 9 → 5 (Naked Single)
31. Row 6 / Column 7 → 5 (Naked Single)
32. Row 2 / Column 1 → 5 (Hidden Single)
33. Row 8 / Column 6 → 5 (Hidden Single)
34. Row 2 / Column 2 → 2 (Hidden Single)
35. Row 7 / Column 8 → 5 (Hidden Single)
36. Row 2 / Column 6 → 8 (Hidden Single)
37. Row 7 / Column 4 → 2 (Hidden Single)
38. Row 4 / Column 6 → 6 (Hidden Single)
39. Row 4 / Column 4 → 9 (Naked Single)
40. Row 2 / Column 4 → 6 (Naked Single)
41. Row 1 / Column 5 → 9 (Full House)
42. Row 2 / Column 5 → 9 (Full House)
43. Row 3 / Column 5 → 9 (Full House)
44. Row 8 / Column 4 → 8 (Full House)
45. Row 8 / Column 5 → 6 (Full House)
46. Row 9 / Column 5 → 6 (Full House)
47. Row 8 / Column 2 → 9 (Full House)
48. Row 8 / Column 8 → 9 (Full House)
49. Row 9 / Column 8 → 9 (Full House)
50. Row 1 / Column 1 → 3 (Naked Single)
51. Row 3 / Column 2 → 6 (Full House)
52. Row 1 / Column 2 → 6 (Full House)
53. Row 9 / Column 3 → 9 (Naked Single)
54. Row 7 / Column 1 → 3 (Naked Single)
55. Row 7 / Column 3 → 6 (Naked Single)
56. Row 9 / Column 1 → 2 (Naked Single)
57. Row 7 / Column 2 → 8 (Naked Single)