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9

Ce Sudoku Puzzle a 41 étapes et il est résolu en utilisant les techniques Hidden Single, Locked Candidates Type 1 (Pointing), Naked Triple, Naked Pair, Locked Candidates Type 2 (Claiming), Empty Rectangle, Naked Single, Uniqueness Test 4, undefined, Discontinuous Nice Loop, Hidden Triple, Uniqueness Test 1, Jellyfish, Turbot Fish, Give Up.

Naked Single Explication
Hidden Single Explication
Locked Candidates Explication
Locked Candidates Explication
Essayez de résoudre

Étapes de la solution :

  1. Ligne 1 / Colonne 4 → 8 (Hidden Single)
  2. Ligne 1 / Colonne 5 → 6 (Hidden Single)
  3. Ligne 3 / Colonne 8 → 6 (Hidden Single)
  4. Ligne 7 / Colonne 9 → 7 (Hidden Single)
  5. Locked Candidates Type 1 (Pointing): 4 in b1 => r2c7<>4
  6. Locked Candidates Type 1 (Pointing): 3 in b2 => r2c7<>3
  7. Locked Candidates Type 1 (Pointing): 2 in b3 => r47c7<>2
  8. Locked Candidates Type 1 (Pointing): 8 in b6 => r6c3<>8
  9. Naked Triple: 1,4,5 in r5c245 => r5c139<>1, r5c9<>4
  10. Locked Candidates Type 1 (Pointing): 4 in b6 => r4c4<>4
  11. Naked Pair: 2,8 in r58c1 => r4c1<>2
  12. Naked Triple: 2,4,8 in r8c139 => r8c46<>2, r8c4<>4, r8c6<>8
  13. Locked Candidates Type 2 (Claiming): 8 in r8 => r9c3<>8
  14. Empty Rectangle: 1 in b3 (r14c1) => r4c7<>1
  15. Ligne 4 / Colonne 7 → 4 (Naked Single)
  16. Uniqueness Test 4: 2/8 in r5c13,r8c13 => r58c3<>2
  17. X-Wing: 2 r58 c19 => r4c9<>2
  18. XY-Chain: 5 5- r4c8 -2- r5c9 -3- r5c3 -8- r8c3 -4- r7c2 -1- r5c2 -5 => r4c2<>5
  19. Discontinuous Nice Loop: 1 r4c3 -1- r2c3 -4- r8c3 -8- r8c1 -2- r5c1 =2= r4c3 => r4c3<>1
  20. XY-Chain: 2 2- r4c3 -6- r4c9 -1- r4c1 -9- r1c1 -1- r2c3 -4- r8c3 -8- r5c3 -3- r5c9 -2 => r4c8,r5c1<>2
  21. Ligne 4 / Colonne 8 → 5 (Naked Single)
  22. Ligne 5 / Colonne 1 → 8 (Naked Single)
  23. Ligne 5 / Colonne 3 → 3 (Naked Single)
  24. Ligne 8 / Colonne 1 → 2 (Naked Single)
  25. Ligne 5 / Colonne 9 → 2 (Naked Single)
  26. Ligne 8 / Colonne 9 → 4 (Naked Single)
  27. Ligne 8 / Colonne 3 → 8 (Naked Single)
  28. Ligne 4 / Colonne 3 → 2 (Hidden Single)
  29. Ligne 1 / Colonne 8 → 4 (Hidden Single)
  30. Hidden Triple: 5,7,9 in r6c246 => r6c246<>1, r6c2<>6
  31. Naked Pair: 5,9 in r68c6 => r2c6<>5
  32. Naked Pair: 1,2 in r2c6,r3c4 => r2c45<>1, r2c4<>2
  33. Uniqueness Test 1: 5/9 in r6c46,r8c46 => r6c4<>5, r6c4<>9
  34. Ligne 6 / Colonne 4 → 7 (Naked Single)
  35. Ligne 4 / Colonne 2 → 7 (Hidden Single)
  36. Ligne 4 / Colonne 9 → 6 (Hidden Single)
  37. Ligne 9 / Colonne 2 → 6 (Hidden Single)
  38. Ligne 6 / Colonne 3 → 6 (Hidden Single)
  39. Jellyfish: 1 r1346 c1479 => r2c7,r59c4<>1
  40. Turbot Fish: 1 r5c5 =1= r5c2 -1- r7c2 =1= r9c3 => r9c5<>1
  41. Give Up: Don't know how to proceed!
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