This program allows you to play the familiar Battleships game against the
computer on a 10x10 board. The interface is visual and largely
self-explanatory; you place your ships and pick your shots by moving the
cursor around the ‘sea’ with the
Note that when selecting a ship to place, you must type the
capital letter (these are, after all, capital ships). During ship placement,
the ‘r’ command may be used to ignore the current position and
randomly place your currently selected ship. The ‘R’ command
will place all remaining ships randomly. The ^L command (form feed, ASCII
12) will force a screen redraw.
The command-line arguments control game modes:
Originally written by one Bruce Holloway in 1986. Salvo
mode added by Chuck A. DeGaul
<cbosgd!cad>. Visual user
interface, ‘closepack’ option, code rewrite and manual page by
Eric S. Raymond
The algorithm the computer uses once it has found a ship to sink is provably
optimal. The dispersion criterion for the random-fire algorithm may not be.
- Selects a ‘blitz’ variant. This allows a side to shoot for
as long as it continues to score hits.
- Permits ships to be placed adjacently. Normally, ships must be separated
by at least one square of open water. This disables that check and allows
them to close-pack.
- Selects a ‘salvo’ variant. This allows a player one shot per
turn for each of his/her ships still afloat. This puts a premium on
scoring hits early and knocking out some ships and also makes it much
harder, for example, when you face a superior force with only your