German Whispers Sudoku
4
9
5
3
2
6
7
2
8
6
1
5
3
8
3
5
6
3
1
2
8
1
8
9
3
5
9
4
6
2
7
4
3
9
8
7
9
2
Errori
0/3
Punteggio
-
Tempo
00:00
Progresso0%
Facile · German Whispers
Cambia difficoltà sopra ↑
Come giocare a German Whispers Sudoku
Si applicano le regole standard del Sudoku. Due celle adiacenti qualsiasi lungo una linea verde devono differire di almeno 5. Questo forza l'alternanza tra valori grandi (6–9) e piccoli (1–4).
Guida completa →
Le cifre adiacenti sulla linea verde devono differire di almeno 5
German Whispers Facile
German Whispers Medio
German Whispers Difficile
German Whispers Esperto
Cos'è German Whispers?
German Whispers (noto anche come Whisper Sudoku) disegna linee verdi sulla griglia. Due digits qualsiasi adiacenti sulla linea devono differire di almeno 5. Poiché la differenza minima è 5 e i digits vanno da 1–9, questo crea un forte pattern alternato alto-basso: se una cell è bassa (1–4), la successiva deve essere alta (6–9) e viceversa. Il vincolo della linea elimina 5 come digit valido nella maggior parte delle posizioni.
A Colpo d'Occhio
| Tipo di vincolo | Vincoli di Linea |
| Dati tipici | 18–26 |
| Valutazione della difficoltà | ★★★★☆ 4/5 |
| Tempo medio di risoluzione — Facile | 10 min |
| Tempo medio di risoluzione — Medio | 22 min |
| Tempo medio di risoluzione — Difficile | 44 min |
| Tempo medio di risoluzione — Esperto | 74 min |
Come Risolvere German Whispers
| Tecnica | Cosa fa | Livello |
|---|---|---|
| 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). | Avanzato |
| 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. | Avanzato |
| 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. | Avanzato |
| 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. | Avanzato |
Tempi Medi di Risoluzione
Facile
10 min
Medio
22 min
Difficile
44 min
Esperto
74 min
Domande Frequenti
Cos'è il German Whispers Sudoku?
German Whispers Sudoku is a variant where green lines are drawn across the grid. Any two cells adjacent along a green line must contain digits that differ by at least 5. Standard Sudoku rules apply — every row, column, and 3×3 box must contain 1–9 exactly once.
Why is it called German Whispers?
The name comes from the puzzle community and refers to a variant popularised in German puzzle circles, with 'whispers' evoking the idea of information passing along a line with a significant minimum separation at each step.
What digits can sit next to each other on a whisper line?
Only pairs with a difference of 5 or more: 1&6, 1&7, 1&8, 1&9, 2&7, 2&8, 2&9, 3&8, 3&9, 4&9. This means whisper cells must alternate between the low group (1–4) and high group (6–9). Digit 5 cannot appear on any whisper line.
What is the best first move in German Whispers Sudoku?
Identify the longest whisper lines and mark each cell as low (1–4) or high (6–9) based on alternation. Any whisper cell in a row, column, or box where the low or high group is almost fully placed gives you a direct elimination or placement.
Is German Whispers Sudoku hard to learn?
The constraint is simple to understand but its consequences take practice to apply automatically. The forced high-low alternation is the key insight — once you internalise it, you can immediately split each line cell into one of two groups and halve your candidate list from the start.
How long does German Whispers Sudoku take to solve?
Easy puzzles take 8–18 minutes. Medium puzzles run 18–35 minutes. Hard and expert puzzles can take 45 minutes to well over an hour. Longer whisper lines spanning the full grid are the most time-consuming because they interact with almost every row, column, and box simultaneously.