Ekspert Kropki Sudoku
Sorte prikker signalerer et fordoblingsforhold; hvide prikker betyder på hinanden følgende cifre. Umærkede par bærer lige så kraftfuld information. Gratis online.
Ekspert Kropki Sudoku. De sværeste prikbegrænsningspuslespil på siden — hvert trin kæder priklogik, ingen-prik elimineringer og avanceret Sudoku-teknik. Ingen gætning.
4
8
1
9
2
3
7
5
7
9
4
6
5
8
4
3
6
1
7
5
6
8
2
Hvad er Kropki Sudoku?
Sværhedsgrad
★★★☆☆
3/5
Begrænsningstype
Cellerelationer
Typiske Givne Tal
18–24
Gns. Løsning (Ekspert)
62 min
Løsningsteknikker for Ekspert niveau
| Teknik | Beskrivelse | Niveau |
|---|---|---|
| White Dot Pairs | White dots mark consecutive digit pairs: (1,2), (2,3), …, (8,9). Cross-reference with row and column constraints. | Begynder |
| Black Dot Pairs | Black dots mark double-relationship pairs: (1,2), (2,4), (3,6), (4,8). Only these four combinations are valid. | Begynder |
| Negative Constraint | No dot between two cells means they are neither consecutive nor in a 1:2 ratio — a powerful elimination on every unmarked adjacent pair. | Mellemniveau |
| Dot Chain Analysis | A sequence of connected dots forms a digit-value chain. Enumerate valid digit sequences for the entire chain simultaneously. | Avanceret |
| 1-2-4 and 2-4-8 Chains | A black dot adjacent to a white dot often forces the common 1→2→4 or 2→4→8 chain. | Mellemniveau |
Teknikker at mestre på Ekspert
- X-Wing-teknik — Expert Kropki grids stretch dot chains until pure dot logic stalls — at that point the negative constraint has thinned 5, 7, and 9 enough for clean X-Wing rectangles.
- Swordfish technique — The 1-2-4-8 doubling skeleton confines even digits to repeating column patterns; expert endgames often resolve with a Swordfish on 4 or 8 across three dot-heavy rows.
Gennemsnitlig Løsningstid efter Sværhedsgrad
Let
8 min
Mellem
18 min
Svær
35 min
Ekspert
62 min
Vil du have en fuld gennemgang af regler, strategier og løsningstrin?
Sådan spiller du Kropki Sudoku →
Relaterede varianter
XV Sudoku
Both mark adjacent-cell relationships with a powerful negative rule — XV's sum markers play exactly like kropki's dots.
Konsekutive Sudoku
Isolates the white-dot half of kropki: bars mark consecutive neighbours and silence means never consecutive.
Større end Sudoku
Adjacent-cell relationships again, but as inequalities — order information instead of difference and ratio.
Ofte stillede spørgsmål — Ekspert Kropki Sudoku
Flere spørgsmål? Se den fulde Kropki Sudoku guide.