Hur man spelar Samurai Sudoku
Fem överlappande 9×9-rutnät som delar hörnblock
Reglerna
Standard Sudoku-regler gäller: fyll varje rad, kolumn och 3×3-ruta med siffrorna 1–9, var och en förekommer exakt en gång.
Samurai Sudoku består av fem sammanlänkade 9×9-rutnät arrangerade i en X-form — ett centralt rutnät och fyra hörnrutnät, som alla delar en 3×3-ruta där de överlappar. Varje av de fem delrutnäten måste oberoende uppfylla standard Sudoku-regler. Att lösa ett delrutnät ger ofta ledtrådar som låser upp ett annat. Hela pusslet sträcker sig över ett 21×21-rutnät.
För var detta pussel kommer ifrån, hur det jämförs med relaterade varianter och en strategisammanfattning, se vår Samurai Sudoku variantöversikt.
Översikt
Hur man löser Samurai Sudoku
Vanliga frågor
Vad är 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.