The object of the game is to earn a high score by connecting as many pieces as possible and erasing them. The more pieces erased at once, the higher the score.
You erase pieces that are connected vertically or horizontally by clicking on them. Pieces above erased pieces will drop down. If all pieces on a vertical line are erased, the pieces on the right side will slide left.
To determine the score, count the number of rotating pieces minus two and square that total. (Example: Five rotating pieces minus two is three. Three squared is nine.)
The final score is decreased by the number of remaining pieces. If you erase all pieces, a bonus (1000 points) is added to the score.
Hint: Pick one type and delete it, making the other areas bigger.