Samurai sudoku
0:00Tap a square, then a number
How to play
A samurai sudoku is five 9×9 sudoku grids. The middle grid shares one 3×3 box with each of the four corner grids. Every row, column and 3×3 box of each of the five grids must contain 1 to 9 once.
Start where two grids meet: the shared corner boxes get clues from both grids. On a phone, press Zoom to make the squares larger and scroll the grid.
More puzzles
Killer sudokuDaily puzzle and four levelsClassic sudokuEasy to expertKakuroCross sums in three sizesJigsaw sudokuIrregular regionsX sudokuDiagonals count tooMini sudoku4×4 and 6×6 for kids
Questions
How many digits are given?
Medium puzzles start with about 130 digits and hard puzzles with about 110 digits, spread over the five grids.
Does every samurai sudoku have one solution?
Yes. Every puzzle was checked by a computer solver, which confirmed that it has exactly one solution.
Is it playable on a phone?
Yes, but the grid is large. Press Zoom under the grid to make the squares bigger and scroll the grid with your finger.