Sådan spiller du Samurai Sudoku
Fem overlappende 9×9 gitre, der deler hjørnebokse
Reglerne
Standard Sudoku-regler gælder: udfyld hver række, kolonne og 3×3-boks med cifrene 1–9, hver forekommer præcis én gang.
Samurai Sudoku består af fem sammenlåsende 9×9-gitre arrangeret i en X-form — et centralt gitter og fire hjørnegitre, der alle deler en 3×3-boks, hvor de overlapper. Hvert af de fem undergitre skal uafhængigt opfylde standard Sudoku-regler. At løse et undergitter giver ofte spor, der låser op for et andet. Det komplette puslespil spænder over et 21×21-gitter.
For hvor dette puslespil kom fra, hvordan det sammenlignes med relaterede varianter og et strategiresumé, se vores Samurai Sudoku variantoversigt.
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Sådan løser du Samurai Sudoku
Almindelige spørgsmål
Hvad er Samurai Sudoku? ▾
Samurai Sudoku is a variant consisting of five overlapping 9×9 Sudoku grids arranged on a 21×21 board. One grid occupies the centre, and four grids are placed at the corners with their inner 3×3 boxes overlapping the centre grid's corner boxes. All five grids must be solved simultaneously.
How do the overlapping boxes work? ▾
Each of the four outer grids shares one 3×3 box with the centre grid. Any digit placed in a shared box satisfies the constraint for both grids simultaneously. This means information flows between grids through the shared boxes — solving one grid's corner often directly advances the centre grid.
Do all five grids have standard Sudoku rules? ▾
Yes. Each of the five 9×9 grids individually follows all standard Sudoku rules: every row, column, and 3×3 box within that grid must contain 1–9 exactly once. The only interaction between grids is through the shared corner boxes.
Is Samurai Sudoku harder than regular Sudoku? ▾
Samurai puzzles take significantly longer than single-grid Sudoku simply due to scale — you're solving five grids. Individual difficulty can range from easy to expert. The cross-grid interactions through shared boxes add a satisfying extra layer that single-grid Sudoku doesn't offer.
What is the best approach to Samurai Sudoku? ▾
Work on all five grids simultaneously rather than trying to complete one before moving to another. When you get stuck on one grid, the shared boxes often provide a breakthrough from a neighbouring grid. Scan all five grids for hidden singles after every placement in any shared box.
How long does Samurai Sudoku take to solve? ▾
Easy puzzles take 25–45 minutes. Medium puzzles run 45–90 minutes. Hard and expert puzzles can take 2–4 hours. The time is primarily driven by scale — five full grids — rather than by individual deduction difficulty.