THE CHESS GAME DESIGNED TO IMPROVE YOUR GAME
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CLASSIC CHESS SUPPORT
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Note: Classic Chess is an older program and is not the same as Brain Games Chess. This
question is relevant only to Classic Chess.

Q:        I have Classic Chess and I have a broadband connection.
 I want to play an online
game against a friend who also has this game.   Either one of us can chose a game but
cannot join the game.  The program waits for a player.  My friend is online and hosting, but I
can’t join. We are using the TCP/IP connection and we don’t use the serial set up as it won’t
work on our system.   How do we get online play to work?

A:        It is possible you and/or your friend are using the incorrect IP address when
attempting to connect. You need to know your public IP address. Private IP address start
with 10, 169, or 192. These addresses are only to be used in private networks and will not
travel through the Internet. The easiest way to find your Public IP address is by visiting a
site like www.whatismyip.com. Getting your public IP address is only part of the solution.

The next step is to configure your router to have the traffic coming into your network to
route to the PC playing chess. This simply means that you are going to convert the traffic
coming to your PUBLIC IP address into a PRIVATE IP address on your network. This
configuration varies from router to router.

But first you must access the configuration screen of your router. Check with its
documentation or with the vendor to find out how this is done. Then you generally you want
to look for either a Port Forwarding table or a NAT Table. The chess game uses TCP and UDP
ports 47624 and the range from 2300-2400.

Think of Ports as doors in your router. To open the Ports (or doors) you enter the first port
number in the first column, then the ending port number in the second column. You select
both TCP and UDP. And finally you enter the PRIVATE IP of the target PC on your network.

You would need to make two entries for Chess. In the first entry, the first and ending port
number will be the same, 47624. The second entry will have 2300 as the first and 2400 as
the ending port number. You cannot have these ports forwarding to two different PCs on
your network. You only have one public IP address, therefore you can only have one PC that
is public.

The last hurdle might be a software firewall. Windows XP SP2 has a built in one. There is
also Zone Alarm, Black ICE, Norton Firewall, etc. These may also block the inbound traffic.
You may or may not have to do the same process in the firewall that you did for the router
and open ports 47624 and ports 2300 through 2400.
Instructions for Classic Chess
can be downloaded by
clicking
this on link.
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