Svær Irregular Sudoku
Jigsaw-formede regioner erstatter 3×3-boksene. Rækker, kolonner og irregulære regioner skal hver indeholde 1–9. Ingen download, ingen login.
Svær Irregular Sudoku. Komplekse regionformer med færre givne — forvent pegende par på tværs af regioner, skjulte sæt og vedvarende blyantsnotat arbejde.
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Hvad er Jigsaw Sudoku?
Sværhedsgrad
★★★☆☆
3/5
Begrænsningstype
Uregelmæssige regioner
Typiske Givne Tal
24–30
Gns. Løsning (Svær)
32 min
Løsningsteknikker for Svær niveau
| Teknik | Beskrivelse | Niveau |
|---|---|---|
| Region Identification First | Identify all 9 irregular regions by their colour coding before solving. Region membership determines the third constraint unit for each cell. | Begynder |
| Region Counting | Each region must contain 1–9. Counting completed rows and columns reveals how many of each digit can still fit in each region. | Mellemniveau |
| Region–Row/Column Intersection | If a digit within a region is confined to one row or column, eliminate it from the rest of that row or column. | Mellemniveau |
| Irregular Naked Subsets | Apply naked pairs and triples within each irregular region exactly as you would within standard 3×3 boxes. | Avanceret |
Klar til den ultimative test? Prøv Ekspert Jigsaw Sudoku — de sværeste puslespil på Spil Sudoku.
Teknikker at mestre på Svær
- Hidden Pairs technique — Irregular region geometry hides pairs in cells that share a region but no row or column — deliberately recount candidates region-by-region or you will never see them.
- X-Wing-teknik — Rows and columns are unchanged by jigsaw regions, so classic X-Wings still work — and they're often the only move left when region logic stalls in hard puzzles.
Gennemsnitlig Løsningstid efter Sværhedsgrad
Let
7 min
Mellem
16 min
Svær
32 min
Ekspert
60 min
Vil du have en fuld gennemgang af regler, strategier og løsningstrin?
Sådan spiller du Jigsaw Sudoku →
Relaterede varianter
Irregular Diagonal Sudoku
Your jigsaw region-reading skills plus two diagonal houses — the natural step up in constraint density.
Kaoskonstruktion
Jigsaw solving where the regions themselves are hidden — you deduce the borders while you place the digits.
Samurai Sudoku
Scales the geometry challenge a different way: five overlapping grids whose shared boxes pass information between them.
Ofte stillede spørgsmål — Svær Uregelmæssig Sudoku
Flere spørgsmål? Se den fulde Irregular Sudoku guide.