How to Play
Jigsaw Sudoku replaces the standard 3x3 boxes with irregularly shaped regions, often colored for clarity. Each row, column, and region must contain the digits 1 through 9 exactly once.
The regions are the key difference. A digit might be confined to a long, thin shape, which changes how candidates propagate through the grid.
Controls
Click a cell and choose a digit. Region shapes are usually outlined or color-coded.
Scoring
Time and accuracy are scored like standard Sudoku.
