# Solution for Evil Sudoku #1283713524895

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

This Sudoku Puzzle has 62 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Quadruple, Naked Single, Locked Candidates Type 2 (Claiming), Full House, Give Up techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 2 / Column 2 → 3 (Hidden Single)
2. Row 5 / Column 5 → 3 (Hidden Single)
3. Row 8 / Column 8 → 8 (Hidden Single)
4. Row 5 / Column 1 → 1 (Hidden Single)
5. Row 7 / Column 1 → 4 (Hidden Single)
6. Row 8 / Column 6 → 7 (Hidden Single)
7. Row 5 / Column 8 → 7 (Hidden Single)
8. Row 9 / Column 9 → 7 (Hidden Single)
9. Row 7 / Column 7 → 3 (Hidden Single)
10. Row 8 / Column 1 → 3 (Hidden Single)
11. Row 1 / Column 3 → 7 (Hidden Single)
12. Row 2 / Column 4 → 7 (Hidden Single)
13. Row 1 / Column 9 → 4 (Hidden Single)
14. Locked Candidates Type 1 (Pointing): 1 in b2 => r3c9<>1
15. Locked Candidates Type 1 (Pointing): 5 in b7 => r9c5<>5
16. Naked Quadruple: 4,5,6,9 in r4c2346 => r4c8<>5, r4c8<>6, r4c8<>9
17. Row 4 / Column 8 → 9 (Naked Single)
18. Row 4 / Column 4 → 6 (Naked Single)
19. Row 4 / Column 6 → 4 (Naked Single)
20. Row 4 / Column 2 → 5 (Naked Single)
21. Row 4 / Column 3 → 5 (Naked Single)
22. Row 9 / Column 1 → 5 (Hidden Single)
23. Locked Candidates Type 1 (Pointing): 9 in b5 => r6c2<>9
24. Locked Candidates Type 2 (Claiming): 5 in r2 => r1c8<>5
25. Locked Candidates Type 2 (Claiming): 5 in r1 => r3c56<>5
26. Locked Candidates Type 2 (Claiming): 2 in c1 => r3c23<>2
27. Locked Candidates Type 2 (Claiming): 6 in c1 => r23c3,r3c2<>6
28. Row 2 / Column 3 → 9 (Naked Single)
29. Row 3 / Column 2 → 4 (Naked Single)
30. Row 3 / Column 3 → 4 (Naked Single)
31. Row 3 / Column 9 → 9 (Hidden Single)
32. Row 5 / Column 2 → 9 (Hidden Single)
33. Row 6 / Column 7 → 4 (Hidden Single)
34. Row 3 / Column 1 → 2 (Hidden Single)
35. Row 1 / Column 1 → 6 (Full House)
36. Row 1 / Column 8 → 2 (Naked Single)
37. Row 8 / Column 7 → 9 (Hidden Single)
38. Row 6 / Column 8 → 5 (Hidden Single)
39. Row 2 / Column 7 → 5 (Hidden Single)
40. Row 6 / Column 2 → 2 (Hidden Single)
41. Row 8 / Column 2 → 6 (Full House)
42. Row 9 / Column 2 → 6 (Full House)
43. Row 8 / Column 3 → 2 (Full House)
44. Row 5 / Column 3 → 6 (Naked Single)
45. Row 9 / Column 7 → 2 (Full House)
46. Row 5 / Column 7 → 2 (Full House)
47. Row 5 / Column 9 → 2 (Full House)
48. Row 7 / Column 4 → 2 (Hidden Single)
49. Locked Candidates Type 1 (Pointing): 6 in b8 => r7c89<>6
50. Row 7 / Column 8 → 1 (Full House)
51. Row 7 / Column 9 → 1 (Full House)
52. Row 2 / Column 8 → 6 (Full House)
53. Row 2 / Column 9 → 6 (Full House)
54. Locked Candidates Type 2 (Claiming): 9 in r7 => r9c45<>9
55. Row 9 / Column 4 → 8 (Naked Single)
56. Row 9 / Column 5 → 8 (Naked Single)
57. Row 3 / Column 4 → 1 (Naked Single)
58. Row 6 / Column 4 → 9 (Full House)
59. Row 6 / Column 6 → 1 (Full House)
60. Row 3 / Column 5 → 6 (Naked Single)
61. Row 3 / Column 6 → 6 (Naked Single)
62. Give Up: Don't know how to proceed!