Colortris

Colotris is a Tetris variant. Each falling block is made of three colored squares, which order may be modified while descending to the bottom of the well. The combination of three squares of the same color (vertically or horizontally) causes their removal from the board. In addition to the blocks, bombs and stones may fall from the top. The second one remains on the board, the first one blow out the stones and a few adjacent blocks.