eamongall Posted October 3, 2020 Report Share Posted October 3, 2020 Last night while running my Ireland Imps Pairs nightly event a competitor drew my attention to his robot dropping a trick despite having AK of spades and 2 high trumps remaining https://www.bridgebase.com/tools/handviewer.html?bbo=y&myhand=M-427749975-1601667088 Having used verious levels of GIB since Matt Ginsberg sent me the original text version in 1996 I was amazed at this play.The player was not complaining despite paying to use what is supposedly the advanced version of the robot. I will also send to tournaments at BBO just for the crack I have heard and read many complaints about GIBs bidding but thats okay as it runs on samples of hands and a bad sample can flaw its biddingHowever generally its cardplay is up to a standard of claiming with 4 high cards left ... I expect my text version will claim the above hand before the end of play or before taking the practice finesse Some poor chap shelled out 25 cents for this play and losing about 13 imps. Same player Woody1980 also indicated hand 28 as interesting play by the robot https://www.bridgebase.com/tools/handviewer.html?bbo=y&myhand=M-427749850-1601667088 Here the robot turns a possible 11 tricks into 8 tricks ...... Later I will try these hands on my OFFLINE versions of GIB and see how they go ThanksEamon Galligan Quote Link to comment Share on other sites More sharing options...
Huibertus Posted October 3, 2020 Report Share Posted October 3, 2020 My guess is with the introduction of AI the black-outs that come with intelligens are being introduced too? :D Quote Link to comment Share on other sites More sharing options...
pilowsky Posted October 3, 2020 Report Share Posted October 3, 2020 In addition to my terrible bidding and card play, this happens so commonly to me that I started a little thread for these exemplary hands - feel free to join in. Quote Link to comment Share on other sites More sharing options...
smerriman Posted October 3, 2020 Report Share Posted October 3, 2020 This is just standard GIB. It makes assumptions based on the bidding, and never deviates from them. It knows that West is 'guaranteed' to have the spade queen for the double, and thus it can't tell the difference between playing the king and the jack - it sees them as equals. Likewise, in the second example, it doesn't understand Multi, and assumes West has a weak two in diamonds and East a strong hand with hearts. That of course is ludicrous but its whole play engine is based around it, so it's really not unexpected tnat it would go haywire. Quote Link to comment Share on other sites More sharing options...
goffster Posted October 10, 2020 Report Share Posted October 10, 2020 This is just standard GIB. It makes assumptions based on the bidding, and never deviates from them. It knows that West is 'guaranteed' to have the spade queen for the double, and thus it can't tell the difference between playing the king and the jack - it sees them as equals. Likewise, in the second example, it doesn't understand Multi, and assumes West has a weak two in diamonds and East a strong hand with hearts. That of course is ludicrous but its whole play engine is based around it, so it's really not unexpected tnat it would go haywire. The proper algorithm would say (at IMPS)"Can I guarantee the contract with no assumptions" and play that way.falling back to"Can I guarantee the contract with assumptions" if it cannot. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.