Sudoku Mezi liniemi
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
Jak hrát Between Lines Sudoku
Standardní sudoku pravidla platí. Každá linie má dva kruhové endpointy. Všechny číslice podél linie (vyjímajíc kruhy) musí být striktně mezi dvěma endpointovými hodnotami.
Kompletní průvodce →
Číslice na linii musí padat striktně mezi dvěma krajními hodnotami.
Sudoku Mezi liniemi Lehký
Sudoku Mezi liniemi Střední
Sudoku Mezi liniemi Těžké
Sudoku Mezi liniemi Expert
Co je Sudoku Mezi liniemi?
Between Lines Sudoku kreslí linie s kruhovými endpointy. Každá číslice podél linie (kromě samých endpointů) musí být striktně větší než menší endpoint a striktně menší než větší endpoint. Pokud endpointy jsou 2 a 8, každá střední buňka na linii musí být jedna z 3, 4, 5, 6, nebo 7. Čím bližší endpointy jsou v hodnotě, tím více omeňené jsou střední buňky.
Na Prvý Pohled
| Typ omezení | Liniová omezení |
| Typické zadane | 20–28 |
| Ocena obtížnosti | ★★★☆☆ 3/5 |
| Prům. čas řešení — Lehký | 8 min |
| Prům. čas řešení — Střední | 18 min |
| Prům. čas řešení — Těžké | 36 min |
| Prům. čas řešení — Expert | 64 min |
Jak řešit Sudoku Mezi liniemi
| Technika | Co to dělá | Úroveň |
|---|---|---|
| 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}. | Pokročilý |
| Endpoint Ordering | The endpoint values have no fixed order — the constraint is that all middle cells are strictly between the minimum and maximum endpoint. | Pokročilý |
| 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. | Pokročilý |
| 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. | Pokročilý |
Průměrné Časy Řešení
Lehký
8 min
Střední
18 min
Těžké
36 min
Expert
64 min
Často zadávané otázky
Co je 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.