From the website:
7 Colors is a logical game for two players. The rectangular board consists of tiles of 7 colors. At the beginning of the game players occupy two opposite corners. Players make moves by turns. A player can change her/his color, which re-paints all the occupied tiles. If the chosen color coincides with the color of an unoccupied tile in the closest neighborhood, that tile goes to the player. A player wins when she/he occupies more than half of the board.