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

This Sudoku Puzzle has 59 steps and it is solved using Naked Single, Locked Candidates Type 1 (Pointing), Naked Pair, Naked Triple, Hidden Single, Hidden Pair, undefined, Sue de Coq, Full House techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 3 / Column 5 → 3 (Naked Single)
  2. Locked Candidates Type 1 (Pointing): 4 in b8 => r9c79<>4
  3. Naked Pair: 5,9 in r48c5 => r7c5<>5, r7c5<>9
  4. Naked Triple: 3,5,9 in r8c358 => r8c79<>3, r8c7<>5, r8c9<>9
  5. Row 9 / Column 9 → 9 (Hidden Single)
  6. Row 5 / Column 9 → 2 (Hidden Single)
  7. Locked Candidates Type 1 (Pointing): 5 in b9 => r45c8<>5
  8. Hidden Pair: 1,6 in r14c8 => r14c8<>3, r14c8<>8
  9. 2-String Kite: 1 in r1c8,r6c1 (connected by r4c8,r6c7) => r1c1<>1
  10. Finned X-Wing: 1 r26 c17 fr2c2 => r3c1<>1
  11. Finned X-Wing: 3 r16 c19 fr6c7 => r4c9<>3
  12. Sue de Coq: r1c46 - {1268} (r1c8 - {16}, r2c5 - {28}) => r1c19<>6
  13. XYZ-Wing: 1/3/8 in r1c9,r2c27 => r2c9<>3
  14. XY-Wing: 1/6/8 in r1c48,r2c9 => r1c9,r2c5<>8
  15. Row 1 / Column 9 → 3 (Naked Single)
  16. Row 2 / Column 5 → 2 (Naked Single)
  17. Row 1 / Column 1 → 2 (Naked Single)
  18. Row 6 / Column 9 → 7 (Naked Single)
  19. Row 1 / Column 6 → 6 (Naked Single)
  20. Row 7 / Column 5 → 8 (Naked Single)
  21. Row 8 / Column 9 → 4 (Naked Single)
  22. Row 1 / Column 8 → 1 (Naked Single)
  23. Row 1 / Column 4 → 8 (Full House)
  24. Row 3 / Column 6 → 7 (Naked Single)
  25. Row 3 / Column 4 → 1 (Full House)
  26. Row 8 / Column 7 → 7 (Naked Single)
  27. Row 2 / Column 7 → 8 (Naked Single)
  28. Row 2 / Column 9 → 6 (Full House)
  29. Row 4 / Column 9 → 8 (Full House)
  30. Row 4 / Column 8 → 6 (Naked Single)
  31. Row 3 / Column 2 → 9 (Naked Single)
  32. Row 3 / Column 1 → 6 (Full House)
  33. Row 9 / Column 7 → 3 (Naked Single)
  34. Row 5 / Column 8 → 3 (Naked Single)
  35. Row 6 / Column 7 → 1 (Naked Single)
  36. Row 6 / Column 1 → 3 (Full House)
  37. Row 8 / Column 8 → 5 (Naked Single)
  38. Row 9 / Column 4 → 4 (Naked Single)
  39. Row 5 / Column 2 → 8 (Naked Single)
  40. Row 2 / Column 1 → 1 (Naked Single)
  41. Row 2 / Column 2 → 3 (Full House)
  42. Row 4 / Column 2 → 1 (Full House)
  43. Row 7 / Column 8 → 2 (Naked Single)
  44. Row 9 / Column 8 → 8 (Full House)
  45. Row 9 / Column 6 → 2 (Full House)
  46. Row 8 / Column 5 → 9 (Naked Single)
  47. Row 4 / Column 5 → 5 (Full House)
  48. Row 8 / Column 3 → 3 (Full House)
  49. Row 7 / Column 3 → 9 (Full House)
  50. Row 7 / Column 6 → 3 (Naked Single)
  51. Row 7 / Column 4 → 5 (Full House)
  52. Row 4 / Column 7 → 4 (Naked Single)
  53. Row 5 / Column 7 → 5 (Full House)
  54. Row 5 / Column 4 → 7 (Naked Single)
  55. Row 4 / Column 4 → 3 (Full House)
  56. Row 4 / Column 6 → 9 (Naked Single)
  57. Row 4 / Column 1 → 7 (Full House)
  58. Row 5 / Column 1 → 9 (Full House)
  59. Row 5 / Column 6 → 4 (Full House)
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