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Article on "Mr. Bridge" Mentions Backgammon and Poker

Posted By: misja
Date: Thursday, 6 May 2010, at 10:58 a.m.

In Response To: Article on "Mr. Bridge" Mentions Backgammon and Poker (Christian Munk-Christensen)

I would rank poker at about the same complexity as bridge, although there are different skills involved so it's a bit like comparing apples to oranges.
Here's why at least programming poker is so difficult:
The problem with programming poker is that there are two more 'unkowns' in the game when compared with backgammon and even 3 comparing with chess:
For backgammon only the upcoming dice rolls are unknown; this can be compared with the upcoming flop/turn/river cards in Hold'em. Software (and people) can deal with this uncertainty by using weighted averages.
The extra 2 unknowns in poker are: The opponents' cards, and last but not least, the opponents' strategies. So to determine the best action in poker a program should take a weighted average of all combinations of upcoming cards, opponents' cards and the opponents' probable strategies. And as an extra difficulty the opponents might adjust their actions based on how they perceive your strategy.

Some of these opponents' strategies can be explained with psychology but they can also be modeled mathematically. But whatever you do, the amount of computation involved is enormous.

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