Expert German Whispers Sudoku
Les chiffres adjacents sur les lignes vertes doivent différer d'au moins 5. L'alternance haut-bas que cela force façonne toute la résolution.
Expert Sudoku German Whispers. Des chaînes de déduction de parité sur tout le plateau — les puzzles whisper les plus difficiles du site.
6
4
9
5
3
1
3
6
5
8
2
7
5
3
5
4
6
4
3
1
8
1
6
9
7
1
Qu'est-ce que German Whispers ?
Difficulté
★★★★☆
4/5
Type de contrainte
Contraintes de ligne
Indices typiques
18–26
Moy. Résolution (Expert)
74 min
Techniques de résolution pour le niveau Expert
| Technique | Description | Niveau |
|---|---|---|
| High-Low Alternation | Adjacent cells on the line must differ by ≥ 5. This forces a strict alternating high-low pattern: low (1–4) alternates with high (6–9). | Débutant |
| Digit 5 Exclusion | 5 cannot appear on any German Whispers line — no digit within 1–9 differs from 5 by at least 5. Eliminate 5 from all line cells immediately. | Débutant |
| Low-Set {1,2,3,4} / High-Set {6,7,8,9} | Every whisper cell belongs to one of these two sets. Apply row/column/box constraints within each set to narrow candidates. | Intermédiaire |
| Endpoint Parity | The parity (high or low) of the line is not fixed — it's determined by surrounding constraints. Resolving one endpoint propagates the alternation inward. | Avancé |
Techniques à maîtriser au niveau Expert
- Technique X-Wing — Expert whisper grids thread lines through nearly every box; once alternation is mapped, fish on 4 and 6 — the digits with the single whisper partner (9 and 1 respectively).
- Swordfish technique — Long lines push lows and highs into repeating column patterns across rows; a Swordfish on a low digit across three line-heavy rows typically breaks the expert endgame.
Temps de résolution moyen par difficulté
Facile
10 min
Moyen
22 min
Difficile
44 min
Expert
74 min
Envie d'un guide complet des règles, stratégies et étapes de résolution ?
Comment jouer à German Whispers →
Variantes connexes
Sudoku Renban
Both are coloured-line constraints — whispers force big jumps between neighbours while renban forces a tight consecutive set.
Between Lines Sudoku
Another line variant about value ranges: every line digit must fall strictly between the two circled endpoints.
Thermo Sudoku
If you like how whisper lines polarise digits into highs and lows, thermometers impose a full ordering along the line.
Foire aux questions — Expert Sudoku German Whispers
Plus de questions ? Voir la Guide Sudoku German Whispers.