Dotted Tetromino
Place different tetromino shapes without contact and satisfy the circle clues.
Controls
Place several different tetromino shapes; rotations and reflections count as the same shape. Shapes may not touch in any way, not even at a corner. A black circle means exactly one neighbouring cell is shaded; a white circle means zero or two neighbouring cells are shaded. Tap cells to shade or clear them, then use Clear and the answer button.
Brain training · PuzGo