Solution for Evil Sudoku #4361423875944

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

This Sudoku Puzzle has 56 steps and it is solved using Naked Single, Full House, Hidden Single, Naked Pair, undefined, Hidden Rectangle techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 5 / Column 9 → 4 (Naked Single)
  2. Row 5 / Column 1 → 6 (Naked Single)
  3. Row 5 / Column 5 → 9 (Full House)
  4. Row 4 / Column 3 → 9 (Hidden Single)
  5. Row 6 / Column 7 → 3 (Hidden Single)
  6. Row 9 / Column 2 → 4 (Hidden Single)
  7. Row 4 / Column 6 → 5 (Hidden Single)
  8. Row 8 / Column 1 → 5 (Hidden Single)
  9. Row 1 / Column 8 → 6 (Hidden Single)
  10. Row 8 / Column 2 → 3 (Hidden Single)
  11. Row 9 / Column 1 → 8 (Hidden Single)
  12. Row 9 / Column 7 → 2 (Naked Single)
  13. Row 2 / Column 9 → 2 (Hidden Single)
  14. Row 7 / Column 3 → 2 (Hidden Single)
  15. Row 3 / Column 1 → 2 (Hidden Single)
  16. Naked Pair: 1,7 in r2c18 => r2c4<>1, r2c46<>7
  17. X-Wing: 1 r26 c18 => r3c8<>1
  18. X-Wing: 1 r39 c35 => r1c35,r7c5<>1
  19. Hidden Rectangle: 5/8 in r1c79,r7c79 => r1c9<>8
  20. XY-Chain: 7 7- r2c1 -1- r6c1 -7- r4c2 -1- r4c9 -8- r8c9 -6- r8c3 -7 => r13c3<>7
  21. Row 1 / Column 3 → 4 (Naked Single)
  22. Row 3 / Column 3 → 1 (Naked Single)
  23. Row 2 / Column 1 → 7 (Full House)
  24. Row 6 / Column 1 → 1 (Full House)
  25. Row 4 / Column 2 → 7 (Full House)
  26. Row 7 / Column 2 → 1 (Full House)
  27. Row 9 / Column 3 → 6 (Naked Single)
  28. Row 8 / Column 3 → 7 (Full House)
  29. Row 2 / Column 8 → 1 (Naked Single)
  30. Row 6 / Column 8 → 8 (Naked Single)
  31. Row 3 / Column 8 → 7 (Full House)
  32. Row 4 / Column 9 → 1 (Full House)
  33. Row 9 / Column 6 → 3 (Naked Single)
  34. Row 9 / Column 5 → 1 (Full House)
  35. Row 1 / Column 9 → 5 (Naked Single)
  36. Row 2 / Column 6 → 9 (Naked Single)
  37. Row 1 / Column 7 → 8 (Naked Single)
  38. Row 2 / Column 7 → 4 (Naked Single)
  39. Row 2 / Column 4 → 3 (Full House)
  40. Row 3 / Column 7 → 9 (Full House)
  41. Row 7 / Column 7 → 5 (Full House)
  42. Row 3 / Column 6 → 8 (Naked Single)
  43. Row 3 / Column 5 → 4 (Full House)
  44. Row 1 / Column 5 → 7 (Naked Single)
  45. Row 1 / Column 4 → 1 (Full House)
  46. Row 4 / Column 4 → 8 (Naked Single)
  47. Row 4 / Column 5 → 3 (Full House)
  48. Row 8 / Column 6 → 6 (Naked Single)
  49. Row 6 / Column 6 → 7 (Full House)
  50. Row 6 / Column 5 → 6 (Naked Single)
  51. Row 7 / Column 5 → 8 (Full House)
  52. Row 6 / Column 4 → 4 (Full House)
  53. Row 7 / Column 4 → 7 (Naked Single)
  54. Row 8 / Column 4 → 9 (Full House)
  55. Row 8 / Column 9 → 8 (Full House)
  56. Row 7 / Column 9 → 6 (Full House)
Show More...