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 Forum index » Diversions » TimeWasters
Arimaa...now here is a challenge...
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Dark Side Of The Moon
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Joined: 25 Sep 2002
Posts: 167
Location: Between the outer edge of inner space and the inner edge of Outer Space...

 		Arimaa...now here is a challenge...
Saw this in Games magazine...pretty cool site...

www.arimaa.com

From the site to wet your appetite...

In an attempt to show that computers are not even close to matching the kind of real intelligence used by humans in playing strategy games, we have created a new game called Arimaa. Here is a simple game that can be played using the same board and pieces provided in a standard Chess set. However the rules of the game are very different and suddenly the computers are left way behind. So far behind that even the fastest computers will not be able to beat an average human player. The rules of Arimaa are actually simpler and more intuitive than Chess, but to a computer the game is a thousand times more complex. To the best of our knowledge Arimaa is the first game that was designed intentionally to be difficult for computers to play.

When playing strategy games such as Chess, humans use their problem solving capability, experience and intuition to pick what in their judgment is the best move for the current situation. The computer however is actually trying out all the move combinations on an internal board to look ahead as far as possible so that it can pick the move which leads to the most favorable positions. This brute force approach of looking very deep into the game is quite different than the way humans play Chess or any other strategy game. The advances in computer hardware have allowed computers to look deeper and deeper to the point where specially designed hardware can now defeat the best human Chess player. Also the accumulation of Chess knowledge in the form of databases for openings and end games have significantly contributed to improving the performance of Chess programs.

We estimate that even with the current rate of advance in computer hardware a system which uses only the look ahead approach will not be able to defeat the best human Arimaa player for at least 20 years. However, it is possible that advances in the field of Artificial Intelligence that allow computers to more closely match the approach used by humans can reduce this time significantly.


Check it out...you can play against others on-line as well...
_________________
Sometimes the hardest thing to see is what is right in front of you....

PostPosted: Thu May 29, 2003 7:09 pm
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Ehsan
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Joined: 09 May 2003
Posts: 992

 		There are 10^40 possible positions in a game of chess.. for a computer to find all of them is something we still yearn to do.. but take a very very simpler game.. a game with only one piece for each plater, either black or white.. a game of Go has 10^170 different positions..

PostPosted: Fri May 30, 2003 3:39 am
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Scott
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 		Is Go really more complex?
Go may appear simpler and yet more complex, but that's because the board is much bigger; 19x19 instead of 8x8 for chess. If you were to scale chess or checkers up to that size it would also be just as complex, if not more. The main thing that determines how complex the game will be is the number of unique moves a player has on average at each turn. For Chess this is about 30, for Go it is about 200, but Arimaa has about 10,000 while still using a standard 8x8 chess board. That's awsome!!!

PostPosted: Wed Dec 03, 2003 1:39 pm
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