Help with connect4 algorithm

PacketLoss · 2003-06-05T08:33:10

Hi there. Ive been workin in a connect4 game, in c, and the algorithm ive done, is really simple and sometimes easy too beat. Heres the pseudo-code of it See if comp can win If so win it See if player can win If so block it For cicle(stops when it has tested all possibilites, in this case 7 columns) see if comp can create a line of 2 or 3 pieces in column I, and copies the number of "connected" pieces to a variable Y see if puting the piece in that column will originate victory of the player if so cicle restarts in next column put variable the "play" in a binary tree restart cicle THe "play" thats gonna be played will be the one with the most "connected pieces" Now i know this algorithm aint good and it has some flaws,so ive been trying to "upgrade" it to a better one and to implement "prediction", so that the computer can thinkin a play 2 or 3 turns in advance. Can you help me? Ive been searching this forum, but from what i see people here use minimax and alpha-beta algorithms. Can you give me a "help" or "tutorial" page for this algorithms, or can you help me upgrade my algorithm? Thanks in advanced, and please dont flame me. Thanks again! [edited by - PacketLoss on May 23, 2003 12:39:05 PM]

Artificial Intelligence Programming

Started by PacketLoss May 23, 2003 11:37 AM

9 comments, last by PacketLoss 21 years, 5 months ago

PacketLoss

Author

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June 05, 2003 08:33 AM

Great news guys. Ive got the algorithm to work, with a 8 play search. The evaluate function isnt that great yet, but the computer is a very decent player. Thx for all the help guys :D
Im using negamax with alphabeta cutoffs

Btw my algorith, with your help, beats the crap outta my mates algorithm heheh :D

Again my thx

Help with connect4 algorithm

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Help with connect4 algorithm

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