The five transparent pieces are scattered around the board above. Each piece contains a different tetramino shape on it consisting of black and white cells.
The object of the puzzle is to put all five pieces in a stack on the board in such a way that a complete 4x4 chessboard would appear. Please, note, the hint how the black and white cells should be mutually distributed is already depicted on the board.
To move a piece over the board, just drag and drop it. To rotate a piece, click it.