battleships, from FreeBSD

games/bs/Makefile

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+#	$OpenBSD: Makefile,v 1.1 1996/08/21 08:18:33 downsj Exp $
+#       $FreeBSD: Makefile,v 1.1.1.1 1994/12/03 04:33:28 ache Exp $
+
+PROG=	bs
+MAN=	bs.6
+DPADD=	${LIBCURSES} ${LIBTERMLIB}
+LDADD=	-lcurses -ltermlib
+
+.include <bsd.prog.mk>

games/bs/bs.6

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+.\"	$OpenBSD: bs.6,v 1.1 1996/08/21 08:18:34 downsj Exp $
+.TH BATTLESHIPS 6 "Aug 23, 1989"
+.SH NAME
+bs \- battleships game
+.SH SYNOPSIS
+bs [ -b | -s ] [ -c ]
+.SH DESCRIPTION
+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 rogue/hack motion keys hjklyubn.
+.PP
+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).
+.PP
+The command-line arguments control game modes. 
+
+.nf
+	-b selects a `blitz' variant
+	-s selects a `salvo' variant
+	-c permits ships to be placed adjacently
+.fi
+
+The `blitz' variant allows a side to shoot for as long as it continues to
+score hits.
+.PP
+The `salvo' game allows a player one shot per turn for each of his/her ships
+still afloat.  This puts a premium scoring hits early and knocking out some
+ships and also makes much harder the situation where you face a superior force
+with only your PT-boat.
+.PP
+Normally, ships must be separated by at least one square of open water. The
+-c option disables this check and allows them to close-pack.
+.PP
+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.
+.SH AUTHORS
+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 <esr@snark.thyrsus.com> August 1989.