Sukar Thermo Sudoku
Digit mesti meningkat dari hujung mentol ke hujung di sepanjang setiap termometer. Arah suhu menyekat setiap penempatan.
Sukar Thermo Sudoku. Kurang digit diberi, termo bertindih — jangkakan deduksi batas pelbagai langkah dan tanda-pensel kerja.
5
4
6
1
2
5
8
9
3
9
4
1
8
3
2
9
6
2
8
1
5
3
5
4
8
1
7
Apakah Thermo Sudoku?
Kesukaran
★★★★☆
4/5
Jenis Kekangan
Kekangan Garis
Biasa Diberi
20–28
Purata Selesaikan (Sukar)
45 min
Teknik Penyelesaian untuk Tahap Sukar
| Teknik | Penerangan | Tahap |
|---|---|---|
| Range Restriction from Length | A thermometer with N cells must use N strictly increasing distinct values. The bulb is at least 1 and the tip is at most 9, giving a calculable valid range for each cell. | Pemula |
| Minimum/Maximum Bounding | The bulb value is ≤ 9 − (N − 1). The tip value is ≥ N. Apply these bounds immediately to prune all thermometer candidates. | Pemula |
| Overlapping Thermometer Deduction | Two thermometers sharing a cell give tighter combined bounds than either alone. | Pertengahan |
| Forcing Chains via Thermometers | When a value is forced into a thermometer cell, all cells closer to the bulb must be smaller and all closer to the tip must be larger. | Lanjutan |
| Short vs. Long Thermometers | A 2-cell thermometer is simply a greater-than relationship. A 9-cell thermometer forces exactly 1–9 in order. | Pertengahan |
Bersedia untuk ujian muktamad? Cuba Pakar Thermo Sudoku — teka-teki paling sukar di Jom Main Sudoku.
Teknik untuk Dikuasai pada Sukar
- Hidden Pairs technique — Overlapping thermometers compress candidate windows until two digits share only two line cells; hard thermo grids hide their pairs along the slow middle of long lines.
- Teknik X-Wing — Bulb and tip bounds eliminate so many extreme-digit candidates that X-Wings on 1, 2, 8, and 9 appear early — hunt fish on the digits the thermometers exclude.
Purata Masa Selesaikan mengikut Kesukaran
Mudah
10 min
Sederhana
22 min
Sukar
45 min
Pakar
75 min
Nak panduan lengkap peraturan, strategi, dan langkah penyelesaian?
Cara Bermain Thermo Sudoku →
Varian Berkaitan
Arrow Sudoku
Thermo and Arrow both constrain digits along drawn lines — increase swaps for summation, but the cell-by-cell bounding feels the same.
Bisikan Jerman
Another drawn-line rule: instead of strictly increasing, neighbouring line digits must differ by at least 5.
Sudoku Renban
Line cells must form a consecutive set rather than an increasing one — the same range-tracking instinct, loosened by one degree.
Soalan Lazim — Sukar Sudoku Termo
Lebih soalan? Lihat penuh Panduan Thermo Sudoku.