# Solution for Evil Sudoku #2253287941643

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

This Sudoku Puzzle has 60 steps and it is solved using Naked Single, Hidden Single, Full House, Locked Candidates Type 1 (Pointing), undefined, Naked Pair, Empty Rectangle techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 6 / Column 7 → 4 (Naked Single)
2. Row 6 / Column 8 → 7 (Naked Single)
3. Row 1 / Column 6 → 8 (Hidden Single)
4. Row 4 / Column 3 → 5 (Hidden Single)
5. Row 4 / Column 4 → 3 (Naked Single)
6. Row 5 / Column 4 → 7 (Naked Single)
7. Row 3 / Column 4 → 5 (Naked Single)
8. Row 9 / Column 4 → 8 (Full House)
9. Row 6 / Column 2 → 8 (Hidden Single)
10. Row 4 / Column 5 → 6 (Hidden Single)
11. Row 4 / Column 8 → 9 (Naked Single)
12. Row 4 / Column 2 → 2 (Full House)
13. Row 8 / Column 2 → 7 (Hidden Single)
14. Row 8 / Column 5 → 4 (Hidden Single)
15. Row 3 / Column 5 → 7 (Hidden Single)
16. Row 7 / Column 9 → 7 (Hidden Single)
17. Row 7 / Column 3 → 8 (Hidden Single)
18. Row 5 / Column 6 → 2 (Hidden Single)
19. Row 2 / Column 1 → 8 (Hidden Single)
20. Row 7 / Column 7 → 9 (Hidden Single)
21. Row 2 / Column 9 → 4 (Hidden Single)
22. Row 3 / Column 1 → 4 (Hidden Single)
23. Row 2 / Column 8 → 5 (Hidden Single)
24. Locked Candidates Type 1 (Pointing): 2 in b7 => r1c1<>2
25. X-Wing: 3 c27 r39 => r39c9,r9c15<>3
26. Row 7 / Column 5 → 3 (Hidden Single)
27. X-Wing: 6 c27 r29 => r9c9<>6
28. Naked Pair: 1,5 in r9c59 => r9c12<>1, r9c1<>5
29. Row 9 / Column 1 → 2 (Naked Single)
30. Row 7 / Column 8 → 2 (Hidden Single)
31. Empty Rectangle: 1 in b7 (r18c8) => r1c1<>1
32. XY-Wing: 6/9/3 in r1c1,r29c2 => r3c2,r8c1<>3
33. Row 3 / Column 7 → 3 (Hidden Single)
34. Row 9 / Column 7 → 6 (Naked Single)
35. Row 2 / Column 7 → 2 (Full House)
36. Row 9 / Column 2 → 3 (Naked Single)
37. Row 2 / Column 5 → 9 (Naked Single)
38. Row 1 / Column 5 → 2 (Full House)
39. Row 2 / Column 2 → 6 (Full House)
40. Row 1 / Column 3 → 1 (Naked Single)
41. Row 1 / Column 8 → 6 (Naked Single)
42. Row 3 / Column 2 → 9 (Naked Single)
43. Row 5 / Column 2 → 1 (Full House)
44. Row 5 / Column 1 → 9 (Full House)
45. Row 3 / Column 3 → 2 (Naked Single)
46. Row 8 / Column 3 → 6 (Full House)
47. Row 1 / Column 1 → 3 (Full House)
48. Row 1 / Column 9 → 9 (Full House)
49. Row 3 / Column 9 → 1 (Full House)
50. Row 5 / Column 8 → 3 (Naked Single)
51. Row 5 / Column 9 → 6 (Full House)
52. Row 8 / Column 8 → 1 (Full House)
53. Row 9 / Column 9 → 5 (Naked Single)
54. Row 8 / Column 9 → 3 (Full House)
55. Row 8 / Column 1 → 5 (Full House)
56. Row 9 / Column 5 → 1 (Full House)
57. Row 7 / Column 1 → 1 (Full House)
58. Row 6 / Column 5 → 5 (Full House)
59. Row 7 / Column 6 → 5 (Full House)
60. Row 6 / Column 6 → 1 (Full House)