Comment jouer à Between Lines Sudoku
Les chiffres sur une ligne doivent se situer strictement entre les deux valeurs des extrémités
Les règles
Les règles standard du Sudoku s'appliquent : remplissez chaque ligne, colonne et bloc 3×3 avec les chiffres 1–9, chacun apparaissant exactement une fois.
Le Sudoku Entre les Lignes trace des lignes avec des extrémités circulaires. Chaque chiffre le long de la ligne (à l'exclusion des extrémités elles-mêmes) doit être strictement supérieur à la plus petite extrémité et strictement inférieur à la plus grande extrémité. Si les extrémités sont 2 et 8, chaque cellule du milieu sur la ligne doit être l'un des 3, 4, 5, 6 ou 7. Plus les extrémités sont proches en valeur, plus les cellules du milieu sont contraintes.
Pour savoir d'où vient ce puzzle, comment il se compare aux variantes apparentées et un résumé de stratégie, consultez notre Between Lines Sudoku aperçu des variantes.
En un coup d'œil
Comment résoudre Between Lines Sudoku
Questions courantes
Qu'est-ce que 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.