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NETTOE(6)			 Games Manual			     NETTOE(6)

NAME
       nettoe -	Networked version of Tic Tac Toe for the console.

SYNOPSIS
       nettoe [OPTIONS]

DESCRIPTION
       netToe  is  a  console-based version of the classic game	"Tic Tac Toe".
       It is playable against computer AI, against a player on	the  same  ma-
       chine, or against another player	over the network.

OPTIONS
       -4, --ipv4
	      only IPv4	networking

       -6, --ipv6
	      only IPv6	networking

       -nc, --no-colors
	      disable colors

       -nb, --no-beep
	      disable beeps

       -h, --help
	      display usage hints, then	exit

       -v, --version
	      output version information, then exit

HOW TO PLAY VIA	NETWORK
       First decide who	will host the game: you	or your	opponent.  The hosting
       player must next	do the following.

       *   Start nettoe.

       *   Pick	the third option (Two players over network) of the Main	Menu.

       *   Choose the first option (Host the Game) at the Network Game Menu.

       *   Type	name, or nickname.

       *   Communicate the IP address to the other player.  Hostnames work, if
	   registered.	We hope	you know how to	get your own IP	address.

       *   Wait	for the	other player to	connect	to your	host.

       Now the other player, the one connecting	to the game server, must:

       o   Start nettoe.

       o   Pick	the third option (Two players over network) of the Main	Menu.

       o   Use the second option (Connect to a host) at	the Network Game Menu.

       o   Type	name, or nickname.

       o   Type	 the IP	address	of the server host, or its hostname.  Examples
	   include 192.168.0.5 and ::1,	or fenrir.foe.org and localhost.

       o   Wait	for the	game to	start.

       Enjoy yourselves. If you	have any problem, just let us know.

NETWORK	PORTS
       netToe uses TCP port 7501 as listening port of the server  engine,  un-
       less  configured	 otherwise during build	time.  Use "nettoe -v" to dis-
       play the	configured port.

       That port must therefore	be usable as destination port  over  the  net-
       work.   Otherwise remote	games would not	be possible.  For a local game
       this is of course mostly	irrelevant, but	filtering firewalls might  in-
       tercept connections in general.

USING THE AI MODES
       netToe  offers  a mode of play where the	computer acts as opponent with
       some limited built-in abilities to simulate dynamic  decisions.	 Three
       levels of AI strength are made available:

       *   The	weaker	level first checks a small set of blocking moves, then
	   some	winning	moves, and falls back to simple	moves in a fixed  pri-
	   ority order.	 Since neither set is adaptive,	the computer is	easily
	   fooled.

       *   The normal level uses slightly larger sets of moves at  each	 step,
	   but	is  most importantly playing more aggressively than the	weaker
	   level does.	It happens in the sense	that initial  checks  are  for
	   winning  moves,  only  later	 falling back to blocking moves.  This
	   avoids some obvious counterfeit strategy by a human player.

       *   The better of the three levels  is  implemented  differently.   Its
	   first  action  is  to  scan	a complete set of winning moves.  That
	   leading nowhere, it scans through all possible blocking moves,  and
	   finally  falls  back	to an ordered list of simple moves.  Since not
	   even	this level of play is  using  a	 look-ahead  search,  a	 human
	   player  can	set up traps, but finding those	already	demands	a fair
	   amount of insight into the game!

       There are plans for a further level using a look-ahead search of	 depth
       two.   This  would  improve  the	usefulness of netToe as	an educational
       tool.  A	further	level, which is	learning from past plays  within  each
       session,	could also be an interesting enhancement.

AVAILABILITY
       The latest version of this program can be found at

	   http://nettoe.sourceforge.net/

BUGS
       Report  bugs  to	 <meand@users.sourceforge.net>.	  For  a list of known
       bugs, see the BUGS file in the netToe source package.

AUTHOR
       netToe is written by Gabriele  Giorgetti	 <ggdev@users.sourceforge.net>
       and by Mats Erik	Andersson <meand@users.sourceforge.net>.

       This  manual  page  was	initially  written  by	Andras	Bali <bali@de-
       bian.org>, for the Debian GNU/Linux system, and was later rewritten  by
       Gabriele	Giorgetti to be	distributed in the netToe source package.

COPYRIGHT
       Copyright (C) 2000,2001 Gabriele	Giorgetti,
		 (C) 2001 Andras Bali,
		 (C) 2012,2013,2014 Mats Erik Andersson.

       This is free software; see the source for copying conditions.  There is
       NO warranty; not	even for MERCHANTABILITY or FITNESS FOR	 A  PARTICULAR
       PURPOSE.

netToe 1.5.1			March 21, 2014			     NETTOE(6)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | HOW TO PLAY VIA NETWORK | NETWORK PORTS | USING THE AI MODES | AVAILABILITY | BUGS | AUTHOR | COPYRIGHT

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