Variant playground
Samurai Sudoku
Samurai Sudoku links five classic grids together, with shared overlap boxes that must satisfy both grids.
Related Sudoku variants
These pages cover related formats and alternate names for this puzzle type.
Five Grid Sudoku
Five Grid Sudoku is the Samurai format: five linked boards with overlap boxes that connect the puzzle.
Killer Sudoku
Killer Sudoku combines classic regions with arithmetic cages. Use the cage totals to narrow candidates before placing digits.
Difficult Sudoku
Difficult Sudoku puzzles are built for solvers who want tougher boards and advanced pattern practice.
Sudoku Variants
Browse Sudoku X, Killer Sudoku, Mini Sudoku, Samurai Sudoku, and related formats.