Erfitt Thermo Sudoku
Tölur verða að aukast frá peruendanum til oddsins meðfram hverju hitamæli. Hitastig stefna takmarkar hverja setningu.
Erfitt Thermo Sudoku. Færri gefin, skarastandi hitamæla — búast við margþrepa mörk ályktunum og víðtækri blýantsmerkingu vinna.
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Hvað er Thermo Sudoku?
Erfiðleiki
★★★★☆
4/5
Takmörk tegund
Línuskorður
Dæmigerðar Gefnar Tölur
20–28
Meðal. Leysing (Erfitt)
45 mín
Leysitækni fyrir Erfitt stig
| Tækni | Lýsing | Stig |
|---|---|---|
| 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. | Byrjandi |
| Minimum/Maximum Bounding | The bulb value is ≤ 9 − (N − 1). The tip value is ≥ N. Apply these bounds immediately to prune all thermometer candidates. | Byrjandi |
| Overlapping Thermometer Deduction | Two thermometers sharing a cell give tighter combined bounds than either alone. | Miðlungs |
| 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. | Framhaldið |
| Short vs. Long Thermometers | A 2-cell thermometer is simply a greater-than relationship. A 9-cell thermometer forces exactly 1–9 in order. | Miðlungs |
Tilbúinn fyrir hinsta prófið? Prófaðu Sérfræðingur Thermo Sudoku — erfiðustu þrautirnar á Spilaðu Sudoku.
Tækni til að meistra á Erfitt
- 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.
- X-Wing tækni — 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.
Meðalleysingartími eftir erfiðleika
Auðvelt
10 mín
Miðlungs
22 mín
Erfitt
45 mín
Sérfræðingur
75 mín
Viltu fulla göngu í gegnum reglur, aðferðir, og lausnarskref?
Hvernig á að spila Thermo Sudoku →
Tengd afbrigði
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.
Algengar Spurningar — Erfitt Thermo Suðoku
Fleiri spurningar? Sjáðu fulla Thermo Sudoku leiðarvísir.