description Samurai Sudoku Overview
Samurai Sudoku is a Sudoku variant consisting of five overlapping 9×9 Sudoku grids arranged in a quincunx pattern, with the central grid sharing one 3×3 box with each of the four surrounding grids. The combined puzzle spans a 21×21 cell area, though overlapping regions are counted only once. Each of the five grids must independently satisfy standard Sudoku rules—every row, column, and 3×3 box containing the digits 1 through 9 exactly once. The overlapping boxes create constraints that link the grids, requiring solvers to use information from multiple grids simultaneously.
insights Ranking position
Samurai Sudoku ranks #58 of 93 in the Logic Puzzle ranking, behind Country Road, ahead of Gokigen Naname.
help Samurai Sudoku FAQ
What is the layout of a Samurai Sudoku puzzle?
A Samurai Sudoku consists of five overlapping 9×9 Sudoku grids arranged in a specific quincunx pattern. The combined puzzle spans a large 21×21 cell area.
How do the five grids in Samurai Sudoku connect?
The central 9×9 grid shares one of its 3×3 corner boxes with each of the four surrounding grids. You must solve all five overlapping grids simultaneously using standard Sudoku logic.
Are the rules of Samurai Sudoku different from standard Sudoku?
No, the underlying rules remain identical; each row, column, and 3×3 box must contain the numbers 1 through 9 without repetition. The complexity comes strictly from the overlapping regions.
How long does it take to solve a Samurai Sudoku?
Because it contains five interlocking puzzles, it generally takes much longer to complete than a standard 9×9 Sudoku. Solvers must constantly cross-check the shared 3×3 corner boxes, requiring intense focus.
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