Clone Sudoku
3
9
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6
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7
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1
9
3
7
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9
1
6
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9
2
1
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Clone A
Clone B
Les deux régions doivent avoir des chiffres identiques
Erreurs
0/3
Score
-
Temps
00:00
Progrès0%
Facile · Sudoku Clone
Changez la difficulté ci-dessus ↑
Comment jouer au Sudoku Clone
Les règles standard du Sudoku s'appliquent. Deux régions surlignées (Clone A en ambre, Clone B en violet) doivent contenir des arrangements de chiffres identiques — les cellules correspondantes doivent contenir le même chiffre. Placer un chiffre dans un clone contraint automatiquement la même position dans l'autre clone.
Guide complet →
Les régions marquées doivent contenir des arrangements de chiffres identiques
Clone Sudoku Facile
Clone Sudoku Moyen
Clone Sudoku Difficile
Clone Sudoku Expert
Qu'est-ce que Clone Sudoku ?
Le Clone Sudoku marque des paires de régions (clones) sur la grille. Chaque paire de régions clones doit contenir exactement le même arrangement de chiffres — si un clone a un 3 dans sa cellule en haut à gauche, l'autre clone doit également avoir un 3 dans sa cellule correspondante. Les contraintes de clone créent de puissantes déductions basées sur la symétrie qui peuvent résoudre des régions entières à la fois.
En un coup d'œil
| Type de contrainte | Clone Regions |
| Indices typiques | 24–32 |
| Évaluation de la difficulté | ★★★★☆ 4/5 |
| Temps de résolution moyen — Facile | 10 min |
| Temps de résolution moyen — Moyen | 22 min |
| Temps de résolution moyen — Difficile | 42 min |
| Temps de résolution moyen — Expert | 72 min |
Comment résoudre Clone Sudoku
| Technique | Ce qu'il fait | Niveau |
|---|---|---|
| Clone Pair Deduction | Any digit placed in one clone region immediately forces the same digit in the corresponding cell of the other clone region. | Avancé |
| Constraint Propagation | A clone placement propagates through standard row, column, and box constraints in both regions simultaneously. | Avancé |
| Clone-Box Interaction | If both clone regions share boxes with heavily constrained cells, the clone constraint rapidly resolves entire boxes. | Avancé |
| Mirror Elimination | When a digit is eliminated from a position in one clone region by standard logic, it can be eliminated from the same position in the other clone region. | Avancé |
| Multi-Clone Logic | With two clone regions, solving either provides equal information about both. Alternate deduction paths between clones for maximum efficiency. | Avancé |
Temps de résolution moyens
Facile
10 min
Moyen
22 min
Difficile
42 min
Expert
72 min
Foire aux questions
Qu'est-ce que Clone Sudoku ?
Clone Sudoku is a variant where two highlighted regions of the same shape appear on the grid. The two regions are 'clones' — they must contain exactly the same digit arrangement. Every cell in one region holds the same digit as the corresponding cell in the other region. Standard Sudoku rules apply.
How do the clone regions correspond?
The two clone regions are the same shape and size. Each cell in one region is paired with the corresponding positionally-equivalent cell in the other region. Placing a digit in any cell of one clone immediately fixes that digit in the matching cell of the other clone.
Can clone regions overlap with the same rows or columns?
Yes. The puzzle constructor ensures that the clone constraint is always consistent with Sudoku rules — the two regions are positioned so that corresponding cells are in different rows, columns, and boxes, allowing the same digit to appear in both without violating uniqueness.
Is Clone Sudoku harder than regular Sudoku?
The clone constraint effectively halves the number of independent cells to solve — every deduction in one region automatically applies to the other. Easy Clone puzzles resolve noticeably faster than classic Sudoku. Hard and expert puzzles use the clones to create complex bi-directional constraint chains.
What is the best strategy for Clone Sudoku?
Treat the two clone regions as a single constraint. Whenever you eliminate a candidate from a cell in one region, immediately eliminate it from the corresponding cell in the other. Focus on the rows, columns, and boxes that interact with both regions simultaneously.
How long does Clone Sudoku take to solve?
Easy puzzles take 6–15 minutes. Medium puzzles run 15–30 minutes. Hard puzzles average 30–60 minutes and expert puzzles can take 60–90 minutes. The bilateral nature of the clone constraint makes mid-game breakthroughs especially satisfying.