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

This Sudoku Puzzle has 48 steps and it is solved using Locked Candidates Type 1 (Pointing), Swordfish, undefined, Turbot Fish, Naked Triple, Finned Swordfish, Simple Colors Trap, Naked Single, Full House techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Locked Candidates Type 1 (Pointing): 8 in b4 => r6c56<>8
  2. Swordfish: 7 r167 c189 => r4c18,r89c8,r9c1<>7
  3. 2-String Kite: 4 in r5c6,r7c9 (connected by r5c8,r6c9) => r7c6<>4
  4. Turbot Fish: 4 r6c9 =4= r7c9 -4- r7c4 =4= r8c6 => r6c6<>4
  5. Naked Triple: 1,2,6 in r267c6 => r5c6<>2, r8c6<>6
  6. Finned Swordfish: 4 r589 c168 fr8c3 fr9c2 fr9c3 => r7c1<>4
  7. Finned Swordfish: 4 r589 c268 fr8c3 fr9c1 fr9c3 => r7c2<>4
  8. Simple Colors Trap: 4 (r5c6,r6c9,r7c4) / (r5c8,r7c9,r8c6) => r46c8<>4
  9. XY-Chain: 2 2- r5c8 -4- r5c6 -8- r8c6 -4- r7c4 -1- r7c6 -6- r6c6 -2 => r5c5,r6c89<>2
  10. Row 5 / Column 5 → 8 (Naked Single)
  11. Row 5 / Column 6 → 4 (Naked Single)
  12. Row 5 / Column 8 → 2 (Full House)
  13. Row 6 / Column 4 → 5 (Naked Single)
  14. Row 8 / Column 6 → 8 (Naked Single)
  15. Row 1 / Column 8 → 7 (Naked Single)
  16. Row 1 / Column 9 → 2 (Full House)
  17. Row 4 / Column 4 → 1 (Naked Single)
  18. Row 7 / Column 4 → 4 (Full House)
  19. Row 7 / Column 9 → 7 (Naked Single)
  20. Row 6 / Column 9 → 4 (Full House)
  21. Row 7 / Column 1 → 2 (Naked Single)
  22. Row 8 / Column 7 → 6 (Naked Single)
  23. Row 7 / Column 2 → 6 (Naked Single)
  24. Row 7 / Column 6 → 1 (Full House)
  25. Row 4 / Column 7 → 7 (Naked Single)
  26. Row 9 / Column 7 → 2 (Full House)
  27. Row 8 / Column 5 → 7 (Naked Single)
  28. Row 9 / Column 5 → 6 (Full House)
  29. Row 2 / Column 6 → 2 (Naked Single)
  30. Row 2 / Column 5 → 1 (Full House)
  31. Row 6 / Column 6 → 6 (Full House)
  32. Row 6 / Column 8 → 3 (Naked Single)
  33. Row 4 / Column 8 → 6 (Full House)
  34. Row 6 / Column 5 → 2 (Naked Single)
  35. Row 4 / Column 5 → 3 (Full House)
  36. Row 6 / Column 2 → 8 (Naked Single)
  37. Row 6 / Column 1 → 7 (Full House)
  38. Row 9 / Column 2 → 4 (Naked Single)
  39. Row 4 / Column 2 → 2 (Full House)
  40. Row 8 / Column 3 → 5 (Naked Single)
  41. Row 8 / Column 8 → 4 (Full House)
  42. Row 9 / Column 8 → 5 (Full House)
  43. Row 4 / Column 3 → 4 (Naked Single)
  44. Row 4 / Column 1 → 5 (Full House)
  45. Row 9 / Column 1 → 8 (Naked Single)
  46. Row 2 / Column 1 → 4 (Full House)
  47. Row 2 / Column 3 → 8 (Full House)
  48. Row 9 / Column 3 → 7 (Full House)
Show More...