Ithaka is played on a four by four square grid with three pieces in each of four colors. The pieces are initially arranged so that the three pieces of each color occupy a corner space and the two adjacent edge spaces.
All of the pieces are shared by both players. Each player, in turn, moves one piece any number of spaces in a straight orthogonal or diagonal line over as many empty spaces as is desired, with the following restrictions:
1) The piece moved must not be the same piece moved on your opponent's most recent turn, and,
2) The piece moved must begin next to a piece of the same color.
Win either by getting three pieces of one color in a row or by leaving your opponent with no available moves.
