The object of this game is to score points by arranging your pieces in large groups. Each move consists of simultaneously placing one of your pieces and one of your opponent's pieces on adjacent empty cells. To make a move, first click on the cell you want your piece to go, then on a (horizontally, vertically or diagonally) adjacent cell where you want your opponent's piece to go. Each player's score is determined by their three largest groups of connected pieces. Only horizontal and vertical connections count; diagonals don't. A player's score is the sum of the squares of the sizes of her three largest connected groups. For example, if you have groups of 8, 6, 5, and 3, your score would be (8*8)+(6*6)+(5*5)=125. The game is over when no more moves are possible, and the highest score wins.

Player 1 (red) can drop a red piece in the highlighted cell on the right, and a blue piece in the highlighted left cell. This will make a connected group of 4 red pieces, and prevent player 2 from connecting the upper blue piece to the group of 5 below.