A recent XKCD comic charted the difficulty of various games for computers, from Tic Tac Toe and Nim being solved for all positions, to computers mastering the physical game of Beirut and mental game of chess (the 2006 Deep Fritz vs Vladimir Kramnikin games, previously). There are other games that are basic on the face, but whose potentials for move combinations is so vast as to be beyond the scope of computers. Marion Tinsley was the last great human checkers player, matching off against Chinook in the last 6 games of his life, each ending in a draw (previously). Checkers was finally solved in 2007 (Google quickview; original PDF), and is largest game that has been solved to date, at 8x8. Solving Othello might be possible, if the decision tree were truncated, as the 10x10 board game tree complexity is very huge. The 19x19 Go board is is often noted as one of the primary reasons why a strong program is hard to create, though some programs are getting better at optimizing move evaluations. More: computerized gaming solutions previously, and the Wikipedia page for solved games.
posted by filthy light thief on Jan 11, 2012 - 57 comments

"It was my luck (perhaps my bad luck) to be the world chess champion during the critical years in which computers challenged, then surpassed, human chess players. [...] What if instead of human versus machine we played as partners? My brainchild saw the light of day in a match in 1998 in León, Spain, and we called it "Advanced Chess." Each player had a PC at hand running the chess software of his choice during the game. The idea was to create the highest level of chess ever played, a synthesis of the best of man and machine." The Chess Master and the Computer: A article/book review on computer chess and the state of the top-level chess world by Garry Kasparov. [more inside]
posted by painquale on Jan 26, 2010 - 43 comments

Cool. Cooler. Awesome! Using Lego bricks as a medium to design chess sets seems absolutely logical to anybody that grew up playing with them. Fans have gone low-tech, the inevitable Star Wars, and a few more. Lego offers a virtual cowboys-and-indians version as well. [more inside]
posted by jabberjaw on Apr 14, 2008 - 11 comments

For nearly two decades, fifty computers have been running day and night on an extremely complex problem. Today, scientists from the University of Alberta announced the result of all that work - they have solved the game of checkers. Chinook, the computer program they developed, can never be beaten - try for yourself. While checkers is the most complicated game to be solved so far, it is not the only one. You can play a perfect game of tic-tac-toe, of course, but also connect four, and a 6x6 board of the game othello. Chess players are already thinking ahead to when their game is solved, with Advanced Chess being Gary Kasparov's answer. The hardest game to completely solve might be Go, which may not be solved until 2100.
posted by blahblahblah on Jul 19, 2007 - 76 comments