4P3 Chess Board
The Hexes 4P3 chess board is comprised of 55 hexagons in three colors: umber, amber and sand (dark, medium and light), and organized into three "tridrants" (rhymes with hydrants) separated by a dashed white line. The red arrows in each tridrant indicate the direction the pawns travel. The umber-colored hex at the center of the chess board does not belong to a tridrant.
Rank, File and Tridrant Coordinates
Rank, file and tridrant coordinates are not necessary to play Hexes Chess but they are useful for noting chess moves because they create an address for every hex on the chess board, and they are necessary when recording a match on a scoresheet using notation.
Each tridrant has five ranks (1-5) by four files (a,b,c,d). For example, the coordinate a5W identifies the hex at the intersection of the a-file and the 5th rank on White's tridrant.