A Tetris variant. Fill the board using only the two tetronimo shapes provided.
Click/tap on a cell border to place a line there, click/tap on a line to remove it.
Once lines are placed to divide the board into one of provided tetronimo shapes, the cells within that shape will be colored in.
Additionally, the board has × and = marks, and hatched cells.
The board comes in three sizes: small (6x6), medium (8x8), and large (10x10).
Load a specific puzzle or enter a date in YYYY-MM-DD format to play that day's puzzle: