The pen and paper Battleships upgraded to printed paper and large scale. The grid is 14 x 22 and includes land and sea. You (S.E.L.F.) place 14 units including submarines, aircraft and ammo dumps (7 squares in a "U"). You attack your opponent (N.M.E.) by calling grid co-ordinates. Once per game you may unleash the "blockbuster" which hits 9 squares (in a square shape). A total of 63 hits are needed to win the game. Comes with at least thirty 3-color play sheets.