Zwischen den Linien Sudoku

4
6
9
1
4
7
5
7
9
1
3
2
6
1
5
4
3
1
6
9
7
1
6
4
3
3
5
8
4
7
1
5
7
8
6
8
7
3
Fehler
0/3
Punktzahl
-
Zeit
00:00
Neues Spiel
Fortschritt0%
Einfach · Zwischenlinien Schwierigkeit oben wechseln ↑
Spielanleitung für Between Lines Sudoku
Standard-Sudoku-Regeln gelten. Jede Linie hat zwei Kreise als Endpunkte. Alle Ziffern entlang der Linie (ohne die Kreise) müssen strikt zwischen den beiden Endpunktwerten liegen.
Vollständiger Leitfaden →

Ziffern auf einer Linie müssen streng zwischen den beiden Endwerten liegen

Was ist Zwischen den Linien Sudoku?

Between Lines Sudoku zeichnet Linien mit kreisförmigen Endpunkten. Jede Ziffer entlang der Linie (ohne die Endpunkte selbst) muss streng größer als der kleinere Endpunkt und streng kleiner als der größere Endpunkt sein. Wenn die Endpunkte 2 und 8 sind, muss jede mittlere Zelle auf der Linie eine von 3, 4, 5, 6 oder 7 sein. Je näher die Endpunkte im Wert beieinander liegen, desto eingeschränkter sind die mittleren Zellen.

Auf einen Blick

Constraint-TypLinienbeschränkungen
Typische Vorgaben20–28
Schwierigkeitsbewertung ★★★☆☆ 3/5
Durchschn. Lösungszeit — Einfach8 Min.
Durchschn. Lösungszeit — Mittel18 Min.
Durchschn. Lösungszeit — Schwer36 Min.
Durchschn. Lösungszeit — Experte64 Min.

Lösungsanleitung für Zwischen den Linien Sudoku

TechnikWas es tutLevel
Endpoint Gap Analysis The gap between endpoint values must be large enough to accommodate all middle cells. If endpoints are 2 and 8, middle cells must come from {3,4,5,6,7}. Fortgeschritten
Endpoint Ordering The endpoint values have no fixed order — the constraint is that all middle cells are strictly between the minimum and maximum endpoint. Fortgeschritten
Tight Endpoint Constraint If endpoints would be consecutive (e.g., 3 and 4), no middle cell could satisfy the strict inequalities — use this to force endpoints apart. Fortgeschritten
Between-Line–Box Interaction All middle cells sharing a box must satisfy the between constraint. Use the box to eliminate candidates outside the valid range. Fortgeschritten

Durchschnittliche Lösungszeiten

Einfach
8 Min.
Mittel
18 Min.
Schwer
36 Min.
Experte
64 Min.

Häufig gestellte Fragen

Was ist Between Lines Sudoku?
Between Lines Sudoku is a variant where lines with circular endpoints are drawn on the grid. Every digit along a line (excluding the endpoint circles) must be strictly between the two endpoint values. The endpoints themselves are placed during solving — only the line positions are given.
How do I read the between-line clues?
The two circles at the ends of each line are the boundary values. Every cell between them must be strictly greater than the smaller endpoint and strictly less than the larger one. You deduce which endpoint is larger as part of the solve.
Can the endpoints be any digits?
Yes. Endpoint circles are not pre-filled — you place digits in them during solving. The only rule is that every cell along the line (excluding endpoints) must sit strictly between whatever ends up in the two circles.
What is the best strategy for Between Lines Sudoku?
Look for short between-lines — a single cell between two endpoints is tightly constrained. Combined with row, column, and box rules, the valid range for that cell is often very small. Also look for lines where available candidates in a given row or column form a narrow range.
Is Between Lines Sudoku hard to learn?
The concept is straightforward but the deductions require careful range analysis. Tracking the minimum and maximum possible values for each endpoint and inferring the valid range for in-between cells is the core skill. Easy puzzles make this very accessible.
How long does Between Lines Sudoku take to solve?
Easy puzzles take 8–18 minutes. Medium puzzles run 18–35 minutes. Hard puzzles average 35–65 minutes and expert puzzles can take over 90 minutes. Solve time scales with the number of overlapping lines and the complexity of range interactions.
Auch ausprobieren
Palindrome-Sudoku
Another variant where a line links far-apart cells — mirrored digits there, a shared value range here.
German Whispers
Inverts the comfort zone: between lines squeeze digits into a narrow range while whispers force them far apart.
Thermo-Sudoku
Adds full ordering to the range logic you use on between lines — every step along a thermometer must increase.
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