Expert Pijl Sudoku
Cijfers langs elke pijl moeten optellen tot het getal in de cirkel. Pijlen en klassieke Sudoku regels combineren voor pure logica.
Expert Pijl Sudoku. Multi-pijl dwingketens en pariteitsredenering zijn vereist. De moeilijkste pijlpuzzels op de site — elk cijfer is logisch bewijsbaar.
3
8
2
3
6
4
4
6
3
7
8
1
4
6
4
5
5
1
5
9
7
5
6
9
2
Fouten
0/3
Score
-
Tijd
00:00
Voortgang0%
Expert · Pijl Sudoku
Hoe Arrow Sudoku te spelen →
Wat is Pijl Sudoku?
Moeilijkheidsgraad
★★★★☆
4/5
Beperkingstype
Lijnbeperkingen
Typische Gegeven Cijfers
20–26
Gem. Oplossing (Expert)
80 min
Oplostechnieken voor Expert Niveau
| Techniek | Beschrijving | 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. | Beginner |
| 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. | Gemiddeld |
| 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. | Beginner |
| Arrow–Region Interaction | Arrow cells sharing a box or row with the circle create indirect constraints — combine the sum equation with standard Sudoku uniqueness. | Gemiddeld |
| Repeating Digits on Arrows | Arrow shaft cells can repeat digits (unlike Killer cages). Factor this in when enumerating possible sums. | Gevorderd |
Technieken om te beheersen op Expert
- X-Wing-techniek — 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.
Gemiddelde Oplossingstijd per Moeilijkheidsgraad
Gemakkelijk
12 min
Gemiddeld
25 min
Moeilijk
50 min
Expert
80 min
Wil je een volledige uitleg van regels, strategieën en oplossingsstappen?
Hoe Pijl Sudoku te spelen →
Gerelateerde Varianten
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.
Veelgestelde Vragen — Expert Pijl Sudoku
Meer vragen? Zie de volledige Pijl Sudoku gids.