
   The game of Battleship is a popular simulation of a simple naval battle.
Each player hides 5 ships in a 10 by 10 grid.  They can be placed anywhere
in the grid, horizontally and vertically, as long as there is no overlap.

   Once the ships have been hidden, players take turns taking shots at the
opponent's grid.  The first player to sink all their opponents ships wins.
Each hit scores one point, sinking a ship scores a point, and winning a
round has a bonus of 3 points for a total of 25 points.

   This version of the game can be played against the computer or another
human player.  When playing against the computer, a skill level from 0 to 9
can be selected.  At skill level 0, the computer's shots are completely
random with no recognition of hits made.  At skill level 9, the computer
uses it's best strategy short of cheating.  At any level, performance will
still vary due to chance.

   You may position the cursor using either the numeric pad or the cursor
arrow keys.  The '5' key is used to select a position for a shot or to
place a ship horizontally.  The '0' key is used select or to place a ship
a ship vertically.  At any time while placing ships or shooting, the ESC
key can be used to abort the game.

   The computer will beep when an invalid move is attempted.  There are
also sound effects for shooting, hitting, and sinking a ship.  The Delete
key may be used to toggle the sound effects off and on.
