1.the board is a grid with a few dark void cells that must stay empty.

2.drag pieces from the bank onto the board to cover every open cell.

3.tap a piece in the bank to rotate it before placing.

4.tap a placed piece to pick it back up and try somewhere else.

5.you win when every open cell is covered and only the void remains.

start from corners and edges — big pieces have fewer spots there.

the piece snaps to the nearest valid cell, so rough drops are fine.