Expert Termo Sudoku
Siffror måste öka från glödlampsänden till spetsen längs varje termometer. Temperaturriktningen begränsar varje placering.
Expert Thermo Sudoku. De svåraste termometerpusslen på sidan — varje placering följer från precisa gränsberäkningar och logiskt resonemang.
2
4
3
7
2
6
1
9
4
5
1
3
1
8
5
6
3
6
9
3
8
7
9
3
2
Vad är Thermo Sudoku?
Svårighetsgrad
★★★★☆
4/5
Begränsningstyp
Linjebegränsningar
Typiska givna
20–28
Genomsnittlig lösning (Expert)
75 min
Lösningstekniker för Expert nivå
| Teknik | Beskrivning | Nivå |
|---|---|---|
| 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. | Nybörjare |
| Minimum/Maximum Bounding | The bulb value is ≤ 9 − (N − 1). The tip value is ≥ N. Apply these bounds immediately to prune all thermometer candidates. | Nybörjare |
| Overlapping Thermometer Deduction | Two thermometers sharing a cell give tighter combined bounds than either alone. | Medel |
| 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. | Avancerad |
| Short vs. Long Thermometers | A 2-cell thermometer is simply a greater-than relationship. A 9-cell thermometer forces exactly 1–9 in order. | Medel |
Tekniker att bemästra vid Expert
- X-Wing-teknik — Expert thermo endgames run on the extremes: thermometers force 8s and 9s away from tips of short lines, leaving textbook two-per-row X-Wing geometry.
- Swordfish technique — When several long thermometers parallel each other, mid-range digits get confined to the same three columns across three rows — exactly the Swordfish setup expert grids exploit.
Genomsnittlig lösningstid efter svårighetsgrad
Lätt
10 min
Medel
22 min
Svår
45 min
Expert
75 min
Vill du ha en fullständig genomgång av regler, strategier och lösningssteg?
Hur man spelar Thermo Sudoku →
Relaterade varianter
Arrow Sudoku
Thermo and Arrow both constrain digits along drawn lines — increase swaps for summation, but the cell-by-cell bounding feels the same.
German Whispers
Another drawn-line rule: instead of strictly increasing, neighbouring line digits must differ by at least 5.
Renban Sudoku
Line cells must form a consecutive set rather than an increasing one — the same range-tracking instinct, loosened by one degree.
Vanliga frågor – Expert Thermo Sudoku
Fler frågor? Se hela Thermo Sudoku-guide.