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Ce Sudoku Puzzle a 55 étapes et il est résolu en utilisant les techniques Hidden Single, Locked Candidates Type 1 (Pointing), Skyscraper, Empty Rectangle, Hidden Rectangle, Discontinuous Nice Loop, Naked Single, undefined, Full House, Naked Pair, Uniqueness Test 4.
Naked Single
Explication
Hidden Single
Explication
Locked Candidates
Explication
Full House
Explication
Étapes de la solution :
- Ligne 6 / Colonne 7 → 8 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 9 in b3 => r1c123456<>9
- Locked Candidates Type 1 (Pointing): 9 in b1 => r45678c1<>9
- Skyscraper: 9 in r5c6,r6c3 (connected by r8c36) => r5c2,r6c45<>9
- Empty Rectangle: 9 in b9 (r58c6) => r5c7<>9
- Empty Rectangle: 9 in b6 (r68c3) => r8c8<>9
- Hidden Rectangle: 1/2 in r1c46,r8c46 => r8c4<>1
- Discontinuous Nice Loop: 4/9 r7c2 =6= r7c1 =1= r8c1 =5= r8c3 -5- r1c3 -6- r1c2 =6= r7c2 => r7c2<>4, r7c2<>9
- Ligne 7 / Colonne 2 → 6 (Naked Single)
- XY-Chain: 9 9- r6c3 -6- r1c3 -5- r1c2 -7- r3c1 -9- r2c1 -8- r2c4 -9- r9c4 -4- r9c2 -9 => r4c2,r8c3<>9
- Ligne 8 / Colonne 3 → 5 (Naked Single)
- Ligne 1 / Colonne 3 → 6 (Naked Single)
- Ligne 6 / Colonne 3 → 9 (Full House)
- Ligne 9 / Colonne 2 → 9 (Hidden Single)
- Ligne 9 / Colonne 4 → 4 (Full House)
- Ligne 6 / Colonne 1 → 6 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 9 in b6 => r1c8<>9
- Locked Candidates Type 1 (Pointing): 4 in b7 => r45c1<>4
- Naked Pair: 3,4 in r5c7,r6c9 => r45c8<>3, r45c8<>4
- Ligne 4 / Colonne 2 → 4 (Hidden Single)
- W-Wing: 4/3 in r1c8,r6c9 connected by 3 in r8c89 => r1c9<>4
- Uniqueness Test 4: 5/7 in r1c12,r5c12 => r15c1<>7
- XY-Chain: 4 4- r5c7 -3- r5c1 -5- r1c1 -8- r2c1 -9- r3c1 -7- r3c5 -9- r7c5 -1- r6c5 -4 => r5c5,r6c9<>4
- Ligne 6 / Colonne 9 → 3 (Naked Single)
- Ligne 1 / Colonne 9 → 9 (Naked Single)
- Ligne 8 / Colonne 9 → 4 (Full House)
- Ligne 5 / Colonne 7 → 4 (Naked Single)
- Ligne 6 / Colonne 4 → 1 (Naked Single)
- Ligne 6 / Colonne 5 → 4 (Full House)
- Ligne 7 / Colonne 7 → 9 (Naked Single)
- Ligne 8 / Colonne 8 → 3 (Full House)
- Ligne 1 / Colonne 7 → 3 (Full House)
- Ligne 1 / Colonne 8 → 4 (Full House)
- Ligne 8 / Colonne 1 → 1 (Naked Single)
- Ligne 7 / Colonne 1 → 4 (Full House)
- Ligne 7 / Colonne 5 → 1 (Full House)
- Ligne 5 / Colonne 1 → 3 (Hidden Single)
- Ligne 4 / Colonne 1 → 7 (Naked Single)
- Ligne 5 / Colonne 2 → 5 (Full House)
- Ligne 1 / Colonne 2 → 7 (Full House)
- Ligne 3 / Colonne 1 → 9 (Naked Single)
- Ligne 3 / Colonne 5 → 7 (Full House)
- Ligne 4 / Colonne 8 → 9 (Naked Single)
- Ligne 4 / Colonne 4 → 3 (Full House)
- Ligne 5 / Colonne 8 → 7 (Full House)
- Ligne 1 / Colonne 5 → 2 (Naked Single)
- Ligne 5 / Colonne 5 → 9 (Full House)
- Ligne 5 / Colonne 6 → 2 (Full House)
- Ligne 2 / Colonne 1 → 8 (Naked Single)
- Ligne 1 / Colonne 1 → 5 (Full House)
- Ligne 2 / Colonne 4 → 9 (Full House)
- Ligne 1 / Colonne 4 → 8 (Naked Single)
- Ligne 1 / Colonne 6 → 1 (Full House)
- Ligne 8 / Colonne 6 → 9 (Full House)
- Ligne 8 / Colonne 4 → 2 (Full House)
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