Game rules of Filler are extremely simple.

The goal of the game. The goal of the game is to capture a larger territory than your opponent.
Starting position. The playing field is filled with colored diamonds. At the beginning of the game, diamonds of the players are situated on the opposite corners of the field: lower-left corner of the field for the first player and upper-right corner for the second player.
Making a move. At his turn, a player should change the color of his territory to any of unoccupied colors (the color pallete is situated under diamonds). After that your territory acquires a chosen color all the nearby-located diamonds of the same color will be captured. Thus, your territory will constantly enlarge.

Tips
- Try to limit the capability of your opponent to select his most advantageous color
- First try to capture the territory situated between your territory and the opponent's territory