Sukar German Whispers Sudoku
Digit bersebelahan pada garis hijau mesti berbeza sekurang-kurangnya 5. Pergantian tinggi-rendah yang dipaksa ini membentuk keseluruhan penyelesaian.
Sukar Sudoku Bisikan Jerman. Rangkaian garis padat menuntut rantai deduksi pariti dan teknik Sudoku lanjutan bekerja seiring.
7
2
8
3
5
4
1
9
1
8
2
4
5
3
6
9
2
5
9
7
5
7
8
5
2
6
7
Apakah Bisikan Jerman?
Kesukaran
★★★★☆
4/5
Jenis Kekangan
Kekangan Garis
Biasa Diberi
18–26
Purata Selesaikan (Sukar)
44 min
Teknik Penyelesaian untuk Tahap Sukar
| Teknik | Penerangan | Tahap |
|---|---|---|
| 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). | Pemula |
| 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. | Pemula |
| 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. | Pertengahan |
| 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. | Lanjutan |
Bersedia untuk ujian muktamad? Cuba Pakar Bisikan Jerman — teka-teki paling sukar di Jom Main Sudoku.
Teknik untuk Dikuasai pada Sukar
- Hidden Pairs technique — The difference-of-5 rule prunes high cells beside low extremes hard (a 4 forces its neighbour to 9) — recount boxes the line crosses and pairs surface among the high digits.
- Teknik X-Wing — Whisper lines forbid 5 entirely, so 5's candidates collapse onto off-line cells — X-Wings on 5 are unusually compact and are the signature hard-mode move in German Whispers.
Purata Masa Selesaikan mengikut Kesukaran
Mudah
10 min
Sederhana
22 min
Sukar
44 min
Pakar
74 min
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Varian Berkaitan
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.
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