Rules of Hexi: You and the computer alternate in coloring the edges of the hexagon. Your color is red, and the computer's is green. The first player who builds a triangle with all three edges drawn by himself/herself loses.
You may choose to color just one edge or, in the "Allow more moves each time" mode, more edges each time. This and more options are available via the Hexi console, a separate window that appears when you click a mouse-button on the gameboard's background.
Please send comments and bug-reports to firstname.lastname@example.org.
See for more information.