Hexachromix is a color mixing strategy game. The goal is to connect opposite sides of the board using your color.
Terminology
RGB: Red, Green, Blue
CMY: Cyan, Magenta, Yellow
Color system: One of the above sets of three colors
Mixology
The diagrams below demonstrate how color mixing works for the RGB and CMY color systems. Notice how mixing two colors from the same system produces a color in the other system. This is the key game mechanic of Hexachromix.
For more information (though it's not necessary to play the game), look up additive and subtractive colors.
Gameplay -ology?
Hexachromix can be played with 2-6 players. All six colors must be controlled by someone. A player may control multiple colors from the same team (see Variants for more information).
Red goes first and play continues clockwise (RYGCBM order). You may not skip a turn. If there are no moves available on your turn, the game ends in a draw.
There are three kinds of moves:
Note that when two pieces share a space, their overlap is a different color. This is merely a visual hint for what color can play on that space. It does not mean that the overlap color is already in that space; that space does not count toward the overlap color's paths to victory.
Variants
All variants use the same rules and turn order (RYGCBM). The only difference is how the colors are divided into teams.
A player may control any number of colors on the same team. All colors must be controlled by someone.
2+ players
3+ players
6 players
Winning
The first color that connects its side of the board to the opposite side, via adjacent spaces containing that color, is the winner. The color that makes such a connection wins the game for the whole team.
In this contrived example, Red has connected one of the three red-side spaces with one of the opposite cyan-side spaces. Red wins!