Anti-Consecutive Sudoku
6
4
5
1
3
2
3
8
1
4
6
8
9
7
4
6
2
4
8
9
5
3
7
4
8
4
8
7
9
2
6
1
6
9
8
3
9
7
Erreurs
0/3
Score
-
Temps
00:00
Progrès0%
Facile · Sudoku Anti-Consécutif
Changez la difficulté ci-dessus ↑
Comment jouer au Sudoku Anti-Consécutif
Les règles standard du Sudoku s'appliquent. Règle supplémentaire : deux cellules orthogonalement adjacentes (partageant un bord) ne peuvent pas contenir des chiffres consécutifs. Si une cellule contient 5, les quatre voisins doivent éviter 4 et 6.
Guide complet →
Orthogonally adjacent cells may not contain consecutive digits
Anti-Consecutive Sudoku Facile
Anti-Consecutive Sudoku Moyen
Anti-Consecutive Sudoku Difficile
Anti-Consecutive Sudoku Expert
Qu'est-ce que Anti-Consecutive Sudoku ?
L'Anti-Consecutive Sudoku (une forme plus stricte du Non-Consecutive Sudoku) impose la règle qu'aucune deux cellules orthogonalement adjacentes ne peut contenir des entiers consécutifs. Cette variante nécessite souvent moins de chiffres donnés car la contrainte seule élimine tant de paires candidates. Elle est parfois combinée avec Anti-King ou Anti-Knight pour créer des puzzles extrêmement contraints.
En un coup d'œil
| Type de contrainte | Anti-Contraintes |
| Indices typiques | 18–24 |
| Évaluation de la difficulté | ★★★☆☆ 3/5 |
| Temps de résolution moyen — Facile | 5 min |
| Temps de résolution moyen — Moyen | 13 min |
| Temps de résolution moyen — Difficile | 26 min |
| Temps de résolution moyen — Expert | 48 min |
Comment résoudre Anti-Consecutive Sudoku
| Technique | Ce qu'il fait | Niveau |
|---|---|---|
| Global Candidate Pruning | For every filled cell, remove its ±1 neighbours from all orthogonally adjacent cells immediately. | Avancé |
| Digit 5 is Most Constrained | 5 cannot be adjacent to 4 or 6. Use this to restrict placement of 5 across the entire grid. | Avancé |
| Chain Propagation | Placing a digit propagates constraints along rows and columns, often triggering a cascade of forced placements. | Avancé |
| Forbidden Pair Maps | Build a map of forbidden digit pairs for each adjacent pair of cells and use it to eliminate candidates systematically. | Avancé |
Temps de résolution moyens
Facile
5 min
Moyen
13 min
Difficile
26 min
Expert
48 min
Foire aux questions
Qu'est-ce que Anti-Consecutive Sudoku ?
Anti-Consecutive Sudoku is a variant where no two orthogonally adjacent cells (horizontally or vertically neighbouring) may contain consecutive digits. The rule applies everywhere on the grid without any markers. Standard Sudoku rules also apply throughout.
How is Anti-Consecutive different from Non-Consecutive Sudoku?
Anti-Consecutive and Non-Consecutive Sudoku are the same constraint — the name is used interchangeably by different puzzle communities. Both mean: no two horizontally or vertically neighbouring cells may hold digits that differ by exactly 1.
Which digit placements trigger the most eliminations?
Digits in the middle of the range (4, 5, 6) eliminate two consecutive neighbours simultaneously. Placing a 5 removes both 4 and 6 from all four orthogonal neighbours, and placing those 4s and 6s in turn removes 3 and 7 from their neighbours — creating a cascade effect. Starting with central digits often unlocks large portions of the grid.
Is Anti-Consecutive Sudoku accessible for beginners?
What is the best approach to Anti-Consecutive Sudoku?
Treat the anti-consecutive constraint as an additional elimination layer. After every digit placement, immediately update all four orthogonal neighbours to remove ±1 from their candidate lists. The more given digits you have to start with, the more these cascade eliminations interact.
How long does Anti-Consecutive Sudoku take to solve?
Easy puzzles take 5–15 minutes. Medium puzzles run 15–30 minutes. Hard puzzles average 30–55 minutes and expert puzzles can take 60–90 minutes. Expert puzzles with very few given digits rely entirely on the anti-consecutive constraint for deductions.