# Solution for Evil Sudoku #1246713524895

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

This Sudoku Puzzle has 59 steps and it is solved using Hidden Single, Locked Pair, Naked Single, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 5 / Column 1 → 1 (Hidden Single)
2. Row 3 / Column 3 → 4 (Hidden Single)
3. Locked Pair: 1,9 in r6c46 => r4c46,r5c5,r6c278<>9
4. Row 4 / Column 4 → 6 (Naked Single)
5. Row 4 / Column 6 → 3 (Naked Single)
6. Row 5 / Column 5 → 3 (Naked Single)
7. Locked Pair: 2,9 in r5c23 => r5c789,r6c2<>2, r4c23,r5c789<>9
8. Row 5 / Column 7 → 6 (Naked Single)
9. Row 4 / Column 3 → 5 (Naked Single)
10. Row 5 / Column 8 → 7 (Naked Single)
11. Row 5 / Column 9 → 7 (Naked Single)
12. Row 4 / Column 2 → 8 (Naked Single)
13. Row 4 / Column 8 → 9 (Full House)
14. Row 6 / Column 2 → 8 (Naked Single)
15. Row 8 / Column 6 → 7 (Hidden Single)
16. Row 1 / Column 3 → 7 (Hidden Single)
17. Row 2 / Column 4 → 7 (Hidden Single)
18. Locked Pair: 5,9 in r7c56 => r7c1,r9c5<>5, r7c1479,r9c45<>9
19. Row 7 / Column 4 → 2 (Naked Single)
20. Row 9 / Column 5 → 8 (Naked Single)
21. Row 7 / Column 7 → 3 (Naked Single)
22. Row 9 / Column 4 → 8 (Naked Single)
23. Row 7 / Column 1 → 6 (Naked Single)
24. Row 7 / Column 8 → 1 (Naked Single)
25. Row 7 / Column 9 → 1 (Naked Single)
26. Row 8 / Column 7 → 8 (Hidden Single)
27. Row 3 / Column 9 → 8 (Hidden Single)
28. Row 8 / Column 8 → 6 (Hidden Single)
29. Row 2 / Column 8 → 5 (Naked Single)
30. Row 1 / Column 8 → 2 (Full House)
31. Row 6 / Column 8 → 2 (Full House)
32. Row 2 / Column 7 → 9 (Naked Single)
33. Row 1 / Column 9 → 6 (Full House)
34. Row 2 / Column 9 → 6 (Full House)
35. Row 6 / Column 7 → 5 (Naked Single)
36. Row 9 / Column 7 → 2 (Full House)
37. Row 2 / Column 3 → 3 (Naked Single)
38. Row 2 / Column 2 → 3 (Naked Single)
39. Row 9 / Column 9 → 9 (Naked Single)
40. Row 9 / Column 2 → 5 (Naked Single)
41. Row 9 / Column 1 → 3 (Naked Single)
42. Row 3 / Column 5 → 6 (Hidden Single)
43. Locked Pair: 5,9 in r1c56 => r1c1,r3c6<>5, r1c1,r3c46<>9
44. Row 1 / Column 1 → 9 (Naked Single)
45. Row 3 / Column 4 → 1 (Naked Single)
46. Row 3 / Column 6 → 1 (Naked Single)
47. Row 1 / Column 5 → 5 (Naked Single)
48. Row 1 / Column 6 → 5 (Naked Single)
49. Row 3 / Column 2 → 2 (Naked Single)
50. Row 8 / Column 1 → 2 (Naked Single)
51. Row 8 / Column 2 → 9 (Full House)
52. Row 8 / Column 3 → 9 (Full House)
53. Row 6 / Column 4 → 9 (Naked Single)
54. Row 6 / Column 6 → 9 (Naked Single)
55. Row 7 / Column 5 → 9 (Naked Single)
56. Row 7 / Column 6 → 9 (Naked Single)
57. Row 3 / Column 1 → 5 (Naked Single)
58. Row 5 / Column 2 → 9 (Naked Single)
59. Row 5 / Column 3 → 2 (Naked Single)