Taking poker as an example:

For weak poker AI, an intelligent mistake consists of figuring out what you should do, and then not doing it, so long as not doing it does not make you look stupid.

For example, if the human player just put in a big raise, yet you know there’s a 75 percent chance your hand is the best, then an intelligent mistake would be to fold. The odds are the AI would win, yet we are simulating a weak human player, and weak human players often fold to a large raise when they are unclear on their odds.

Conversely, weak human players often call when their chances are weak. It’s a natural thing to do and allows us to reduce the strength of the AI player, without it looking artificially stupid.

There’s also mention of a fairly cool sounding chess program:

The programmers of Fritz hit upon a solution that involved the AI deliberately setting up situations that the human player could exploit (with some thought) that would allow the human to gain a positional or piece advantage. Once the human player gained the advantage, the AI would resume trying to win.

At no point here is the AI actually dumbed down. If anything, there is actually quite a bit more computation going on, and certainly more complexity.

There are a couple of reasons why I don’t like online poker. The first is an issue of trust. Between bots, collusion, and poor security, I just don’t believe that all the players in a game are on an equal footing. The second reason is that I think of poker as a social game. I like to be able to see the people I’m playing against!

PokerTH is a cross-platform (Windows, Mac OS X & Linux) Texas Hold ‘em poker application, released under the GPL. It includes the option of a local game against AI opponents, as well as a free online setting, allowing the player to join a public table or create a private one to play with friends. I still can’t see the other people at the table, but it’s a great way to learn the game or just play for fun!

My only complaint so far is that the minimum window size is too big for the Eee 701. It’s easy to get around by moving the window every so often, but it would be nice to have the ability to scale the window down for smaller screens.

Download PokerTH (Currently version 0.62)

PokerTH version 0.60 is currently available in the Ubuntu 8.04 repositories.