German Whispers Sudoku
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Fehler
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Punktzahl
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Zeit
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Fortschritt0%
Einfach · German Whispers
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Spielanleitung für German Whispers Sudoku
Standard-Sudoku-Regeln gelten. Zwei benachbarte Zellen entlang einer grünen Linie müssen sich um mindestens 5 unterscheiden. Dies erzwingt einen Wechsel zwischen großen (6–9) und kleinen (1–4) Werten.
Vollständiger Leitfaden →
Benachbarte Ziffern auf der grünen Linie müssen sich um mindestens 5 unterscheiden.
German Whispers Einfach
German Whispers Mittel
German Whispers Schwer
German Whispers Experte
Was ist German Whispers?
German Whispers (auch bekannt als Whisper Sudoku) zeichnet grüne Linien auf das Gitter. Zwei beliebige Ziffern, die auf der Linie benachbart sind, müssen sich um mindestens 5 unterscheiden. Da die Mindestdifferenz 5 ist und die Ziffern von 1–9 reichen, entsteht ein starkes alternierendes Hoch-Niedrig-Muster: Wenn eine Zelle niedrig ist (1–4), muss die nächste hoch sein (6–9) und umgekehrt. Die Linieneinschränkung eliminiert 5 als gültige Ziffer in den meisten Positionen.
Auf einen Blick
| Constraint-Typ | Linienbeschränkungen |
| Typische Vorgaben | 18–26 |
| Schwierigkeitsbewertung | ★★★★☆ 4/5 |
| Durchschn. Lösungszeit — Einfach | 10 Min. |
| Durchschn. Lösungszeit — Mittel | 22 Min. |
| Durchschn. Lösungszeit — Schwer | 44 Min. |
| Durchschn. Lösungszeit — Experte | 74 Min. |
Lösungsanleitung für German Whispers
| Technik | Was es tut | Level |
|---|---|---|
| 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). | Fortgeschritten |
| 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. | Fortgeschritten |
| 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. | Fortgeschritten |
| 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. | Fortgeschritten |
Durchschnittliche Lösungszeiten
Einfach
10 Min.
Mittel
22 Min.
Schwer
44 Min.
Experte
74 Min.
Häufig gestellte Fragen
Was ist 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.