Ekspert Arrow Sudoku
Tal langs hver pil skal summere til tallet i cirklen. Pile og klassiske Sudoku-regler kombineres for ren logik.
Ekspert Pil Sudoku. Multi-pil tvangskæder og paritetsræsonnement er påkrævet. De sværeste pilepuslespil på siden — hvert ciffer er logisk beviseligt.
3
8
2
3
6
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4
6
3
7
8
1
4
6
4
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5
1
5
9
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5
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9
2
Fejl
0/3
Point
-
Tid
00:00
Fremskridt0%
Ekspert · Pil Sudoku
Sådan spiller du Arrow Sudoku →
Hvad er Pil Sudoku?
Sværhedsgrad
★★★★☆
4/5
Begrænsningstype
Linjebegrænsninger
Typiske Givne Tal
20–26
Gns. Løsning (Ekspert)
80 min
Løsningsteknikker for Ekspert niveau
| Teknik | Beskrivelse | Niveau |
|---|---|---|
| Arrow Sum Bounding | The circle digit equals the sum of all arrow shaft cells. A 3-cell arrow with circle 5 means the three shaft cells average under 2 — severely constraining options. | Begynder |
| Max/Min Arrow Analysis | The maximum sum of N cells is 9+8+7+…; the minimum is 1+2+3+…. If the circle digit falls outside these bounds, a constraint error exists. | Mellemniveau |
| Bifurcation on Short Arrows | For 2-cell arrows with a small circle (e.g., 3), only (1,2) or (2,1) works — enumerate cases to find forced placements quickly. | Begynder |
| Arrow–Region Interaction | Arrow cells sharing a box or row with the circle create indirect constraints — combine the sum equation with standard Sudoku uniqueness. | Mellemniveau |
| Repeating Digits on Arrows | Arrow shaft cells can repeat digits (unlike Killer cages). Factor this in when enumerating possible sums. | Avanceret |
Teknikker at mestre på Ekspert
- X-Wing-teknik — Expert arrow grids interlock multiple sums so no single arrow resolves — fish on the high digits that all circles compete for, then feed eliminations back into the sums.
- Swordfish technique — When three arrows cross the same three columns, their shared low digits form Swordfish geometry — the intended break-in for many expert arrow endgames.
Gennemsnitlig Løsningstid efter Sværhedsgrad
Let
12 min
Mellem
25 min
Svær
50 min
Ekspert
80 min
Vil du have en fuld gennemgang af regler, strategier og løsningstrin?
Sådan spiller du Pil Sudoku →
Relaterede varianter
Thermo Sudoku
Arrows demand sums along a line; thermometers demand growth along one — both reward tracking minimums and maximums cell by cell.
Killer Sudoku
The cage-based cousin of arrow arithmetic, adding a no-repeat rule and the powerful 45 trick to your sum toolkit.
Renban Sudoku
Trades arithmetic for set logic on the same drawn-line canvas: line digits must form a consecutive run.
Ofte stillede spørgsmål — Ekspert Pil Sudoku
Flere spørgsmål? Se den fulde Pil Sudoku guide.