Sudoku Jigsaw
7
2
6
5
9
8
5
1
3
7
2
4
9
7
2
3
9
3
6
6
2
1
9
8
4
6
9
3
5
2
7
9
2
3
5
2
1
6
Erreurs
0/3
Score
-
Temps
00:00
Progrès0%
Facile · Sudoku Jigsaw
Changez la difficulté ci-dessus ↑
Comment jouer au Sudoku Jigsaw
Les règles standard de ligne et de colonne s'appliquent. Chaque région colorée (délimitée par une bordure épaisse) doit également contenir 1–9 exactement une fois. Les régions remplacent les boîtes 3×3 standard.
Guide complet →
Des régions irrégulières en forme de jigsaw remplacent les boîtes standard 3×3
Sudoku Jigsaw Facile
Sudoku Jigsaw Moyen
Sudoku Jigsaw Difficile
Sudoku Jigsaw Expert
Qu'est-ce que Sudoku Jigsaw ?
Le Jigsaw Sudoku (également appelé Irregular Sudoku) remplace les neuf boîtes standard 3×3 par neuf régions irrégulières en forme de puzzle. Chaque région contient toujours neuf cellules et doit toujours contenir chaque chiffre 1–9 exactement une fois. Les règles des lignes et des colonnes restent inchangées. Les formes irrégulières peuvent créer des chemins de résolution très différents du Sudoku classique.
En un coup d'œil
| Type de contrainte | Régions irrégulières |
| Indices typiques | 24–30 |
| Évaluation de la difficulté | ★★★☆☆ 3/5 |
| Temps de résolution moyen — Facile | 7 min |
| Temps de résolution moyen — Moyen | 16 min |
| Temps de résolution moyen — Difficile | 32 min |
| Temps de résolution moyen — Expert | 60 min |
Comment résoudre Sudoku Jigsaw
| Technique | Ce qu'il fait | Niveau |
|---|---|---|
| Region Identification First | Identify all 9 irregular regions by their colour coding before solving. Region membership determines the third constraint unit for each cell. | Avancé |
| Region Counting | Each region must contain 1–9. Counting completed rows and columns reveals how many of each digit can still fit in each region. | Avancé |
| Region–Row/Column Intersection | If a digit within a region is confined to one row or column, eliminate it from the rest of that row or column. | Avancé |
| Irregular Naked Subsets | Apply naked pairs and triples within each irregular region exactly as you would within standard 3×3 boxes. | Avancé |
Temps de résolution moyens
Facile
7 min
Moyen
16 min
Difficile
32 min
Expert
60 min
Foire aux questions
Qu'est-ce que Irregular Sudoku ?
Irregular Sudoku (also called Jigsaw Sudoku) replaces the standard nine 3×3 boxes with nine irregularly-shaped regions of exactly nine cells each. Every row, column, and irregular region must still contain the digits 1–9 exactly once. The regions are colour-coded or outlined with thick borders.
How do I identify the irregular regions?
Each region is shaded in a distinct colour or enclosed by thicker lines. Count the cells in each region to confirm it has exactly nine. The regions are always connected — no region is split across the grid — but they can have any shape as long as they tile the full 9×9 grid.
Is solving Irregular Sudoku different from classic Sudoku?
The logic is identical — you use the same techniques (naked pairs, hidden singles, pointing pairs, etc.) — but the non-rectangular region shapes create different constraint interactions. A region that snakes diagonally creates eliminations in many different rows and columns simultaneously, which can feel unintuitive at first.
Is Irregular Sudoku harder than regular Sudoku?
At easy difficulty, Irregular Sudoku can be harder because the region shapes are less predictable than 3×3 boxes. At higher difficulties, experienced Sudoku players often find it comparably challenging — the same techniques apply, just with different geometry.
What is the best strategy for Irregular Sudoku?
Trace each region carefully before starting — understand its shape and which rows and columns it spans. Regions that span many different rows and columns create more powerful constraints. Focus on regions with the most given digits first, then use pointing pairs to transfer information between regions and lines.
How long does Irregular Sudoku take to solve?
Easy puzzles take 8–20 minutes. Medium puzzles run 20–40 minutes. Hard and expert puzzles can take 45–90 minutes. Familiarity with jigsaw region shapes speeds up solving considerably after a few practice puzzles.