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Topic: bot_bomb update (Read 5587 times) |
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fotland
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Arimaa player #211
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Re: bot_bomb update
« Reply #15 on: Nov 29th, 2004, 1:28am » |
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new speedy. fixed some hash table bugs and added more smarts to quiescence search.
I'm done with the search now. If I have time this week, I'll try to do something about pulling rabbits.
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PMertens
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Arimaa player #692
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Re: bot_bomb update
« Reply #16 on: Nov 29th, 2004, 2:10am » |
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it sure is a decent bot - not to be played late at night, drunk or preocupied with anything else 
handle with care
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fotland
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Arimaa player #211
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Re: bot_bomb update
« Reply #17 on: Nov 30th, 2004, 9:22am » |
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Thanks. Still not agressive enough in openeing.
New version. Minor eval cahnges - won't try to smother enemy phant in center.
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fotland
Forum Guru
Arimaa player #211
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Posts: 216
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Re: bot_bomb update
« Reply #18 on: Dec 1st, 2004, 1:49am » |
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Fixed a couple of minor midgame evaluation bugs. Found a major problem, but no time to fix it tonight. Maybe Thursday.
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fotland
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Arimaa player #211
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Re: bot_bomb update
« Reply #19 on: Dec 2nd, 2004, 1:13am » |
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Minor changes. Can't reproduce the illegal move bug. Should be able to play 3-step moves now.
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PMertens
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Arimaa player #692
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Re: bot_bomb update
« Reply #20 on: Dec 2nd, 2004, 11:14am » |
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Looks like I can reproduce your bug 
(Game #14277)
Everytime I blunder speedy plays to the end - if I dont your bot just gives up ? unfair 
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fotland
Forum Guru
Arimaa player #211
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Posts: 216
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Re: bot_bomb update
« Reply #21 on: Dec 2nd, 2004, 11:44am » |
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This was a new bug. It passed after 3 steps when there was a forced push. It's fixed.
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fotland
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Posts: 216
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Re: bot_bomb update
« Reply #22 on: Dec 3rd, 2004, 1:17am » |
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Many evaluation adjustments. Should be more material oriented now, and should be harder to pull its rabbits.
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PMertens
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Arimaa player #692
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Re: bot_bomb update
« Reply #23 on: Dec 3rd, 2004, 8:12am » |
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I will try one game to concentrate on rabbit pulling ....
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Fritzlein
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Arimaa player #706
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Re: bot_bomb update
« Reply #24 on: Dec 3rd, 2004, 12:04pm » |
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Nice try. It seems Speedy won't let you concentrate on pulling rabbits. Even if you don't attack with a horse and let Speedy take it hostage, Speedy will come get a horse and hold it hostage all the same. Then you can get it's small pieces one by one, etc...
If I were a developer, I don't know what I could do to fix the weakness of speedy playing poorly on either side of the elephant/horse deal. I guess the next thing to focus on might be the play of the camel. But how do you encode "If the elephants are tied up at the same trap, be more adventuresome with your camel"? The problem is that it isn't obvious what "tied up" means.
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PMertens
Forum Guru
Arimaa player #692
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Posts: 437
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Re: bot_bomb update
« Reply #25 on: Dec 3rd, 2004, 3:04pm » |
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since I managed to give speedy some points back .... yes rabbit pulling is now not that interesting anymore - good job
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PMertens
Forum Guru
Arimaa player #692
Gender:
Posts: 437
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Re: bot_bomb update
« Reply #26 on: Dec 3rd, 2004, 7:33pm » |
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I wish other bot developers (me included  ) would post here that often about their progress
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fotland
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Posts: 216
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Re: bot_bomb update
« Reply #27 on: Dec 5th, 2004, 2:04am » |
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Fixed some search bugs. Added something to push the camel into advancing when opponent's elephant is defending a hostage.
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Fritzlein
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Arimaa player #706
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Re: bot_bomb update
« Reply #28 on: Dec 5th, 2004, 10:00am » |
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Thank you for continuing to improve Bomb. Playing against an actively developed bot is more like playing against a human, because it is harder to win the same way over and over. The camel tweak is significant against my elephant/horse attack. (Although I'm not positive yet that it is refutation. I think I may just have to play more precisely, and not allow the camel to take my horse hostage, freeing the elephant.) The good thing is that it isn't routine to beat speedy like it once was, and could again be when you leave this project for other things. I may have to take it back about the gap between bots and humans widening.
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| « Last Edit: Dec 5th, 2004, 10:01am by Fritzlein » |
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fotland
Forum Guru
Arimaa player #211
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Posts: 216
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Re: bot_bomb update
« Reply #29 on: Dec 5th, 2004, 9:44pm » |
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I'm finally happy with the search, since bomb is looking 12 or 13 steps ahead, and speedy is doing 11 or 12. Extensions typically go 20 steps or more.
Lots of evaluation changes today. Camel and horse should advance and attack when there is a hostage. It likes all frames rather than just very favorable ones. Many minor tweaks and some bug fixes.
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