Solución para Sudoku difícil #4212459867318

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

Este Sudoku Puzzle tiene 61 pasos y se resuelve usando Hidden Single, Locked Triple, Naked Single, Locked Candidates Type 1 (Pointing), Naked Pair, undefined, Skyscraper, Full House técnicas.

Naked Single Explicación
Hidden Single Explicación
Locked Candidates Explicación
Full House Explicación
Intenta resolverlo

Pasos de la solución:

  1. Fila 2 / Columna 2 → 2 (Hidden Single)
  2. Locked Triple: 2,4,5 in r7c456 => r7c37,r8c46,r9c5<>4, r7c7,r9c5<>5, r8c46<>2
  3. Fila 9 / Columna 5 → 6 (Naked Single)
  4. Fila 3 / Columna 5 → 2 (Naked Single)
  5. Locked Candidates Type 1 (Pointing): 8 in b2 => r3c3<>8
  6. Locked Candidates Type 1 (Pointing): 7 in b8 => r8c2<>7
  7. Locked Candidates Type 1 (Pointing): 8 in b8 => r8c78<>8
  8. Naked Pair: 4,5 in r17c5 => r46c5<>5, r6c5<>4
  9. X-Wing: 9 r37 c37 => r2c37,r458c7,r568c3<>9
  10. Skyscraper: 9 in r2c1,r5c2 (connected by r25c8) => r46c1<>9
  11. Fila 2 / Columna 1 → 9 (Hidden Single)
  12. Fila 3 / Columna 7 → 9 (Hidden Single)
  13. Fila 7 / Columna 7 → 3 (Naked Single)
  14. Fila 7 / Columna 3 → 9 (Naked Single)
  15. Fila 2 / Columna 3 → 1 (Hidden Single)
  16. Fila 8 / Columna 3 → 4 (Naked Single)
  17. Fila 8 / Columna 2 → 1 (Naked Single)
  18. Fila 8 / Columna 7 → 6 (Naked Single)
  19. Fila 9 / Columna 2 → 7 (Naked Single)
  20. Fila 9 / Columna 1 → 3 (Full House)
  21. Fila 1 / Columna 2 → 6 (Naked Single)
  22. Fila 3 / Columna 3 → 3 (Naked Single)
  23. Fila 4 / Columna 2 → 9 (Naked Single)
  24. Fila 5 / Columna 2 → 4 (Full House)
  25. Fila 1 / Columna 3 → 8 (Naked Single)
  26. Fila 1 / Columna 1 → 7 (Full House)
  27. Fila 3 / Columna 6 → 8 (Naked Single)
  28. Fila 3 / Columna 4 → 6 (Full House)
  29. Fila 4 / Columna 5 → 1 (Naked Single)
  30. Fila 6 / Columna 3 → 5 (Naked Single)
  31. Fila 5 / Columna 3 → 6 (Full House)
  32. Fila 8 / Columna 6 → 7 (Naked Single)
  33. Fila 4 / Columna 1 → 8 (Naked Single)
  34. Fila 6 / Columna 1 → 1 (Full House)
  35. Fila 6 / Columna 5 → 9 (Naked Single)
  36. Fila 5 / Columna 6 → 5 (Naked Single)
  37. Fila 8 / Columna 4 → 8 (Naked Single)
  38. Fila 4 / Columna 7 → 5 (Naked Single)
  39. Fila 6 / Columna 9 → 2 (Naked Single)
  40. Fila 4 / Columna 6 → 2 (Naked Single)
  41. Fila 4 / Columna 9 → 6 (Full House)
  42. Fila 5 / Columna 4 → 7 (Naked Single)
  43. Fila 6 / Columna 4 → 4 (Full House)
  44. Fila 6 / Columna 8 → 8 (Full House)
  45. Fila 5 / Columna 7 → 1 (Naked Single)
  46. Fila 5 / Columna 8 → 9 (Full House)
  47. Fila 2 / Columna 7 → 4 (Naked Single)
  48. Fila 9 / Columna 7 → 8 (Full House)
  49. Fila 8 / Columna 9 → 9 (Naked Single)
  50. Fila 8 / Columna 8 → 2 (Full House)
  51. Fila 7 / Columna 6 → 4 (Naked Single)
  52. Fila 2 / Columna 6 → 3 (Full House)
  53. Fila 2 / Columna 4 → 5 (Naked Single)
  54. Fila 1 / Columna 5 → 4 (Full House)
  55. Fila 7 / Columna 5 → 5 (Full House)
  56. Fila 2 / Columna 8 → 6 (Full House)
  57. Fila 7 / Columna 4 → 2 (Full House)
  58. Fila 9 / Columna 8 → 5 (Naked Single)
  59. Fila 1 / Columna 8 → 3 (Full House)
  60. Fila 1 / Columna 9 → 5 (Full House)
  61. Fila 9 / Columna 9 → 4 (Full House)
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