msheald Posted February 18, 2023 Report Share Posted February 18, 2023 Hello! This type of bidding seems to occur relatively frequently with me, so I do not understand GIB's logic and how to avoid it. GIB is a passed hand and in response to a my raise of my overcall (often non-vulnerable vs. vulnerable), GIB feels the need to jump to game. What might have been a reasonable sacrifice becomes a bottom board. If this were my human partner, I would explain that if he/she did not feel he/she could respond initially, he/she should not have responded after that. Why does GIB do this? Best regards. Mike https://tinyurl.com/2p4ny6ep Quote Link to comment Share on other sites More sharing options...
johnu Posted February 18, 2023 Report Share Posted February 18, 2023 Good job by North GIB to avoid the 4♣ Gerber trap and getting to a hopeless slam. Quote Link to comment Share on other sites More sharing options...
pescetom Posted February 18, 2023 Report Share Posted February 18, 2023 Hello! This type of bidding seems to occur relatively frequently with me, so I do not understand GIB's logic and how to avoid it. GIB is a passed hand and in response to a my raise of my overcall (often non-vulnerable vs. vulnerable), GIB feels the need to jump to game. What might have been a reasonable sacrifice becomes a bottom board. If this were my human partner, I would explain that if he/she did not feel he/she could respond initially, he/she should not have responded after that. If I were your human partner, I would reply that the fact that I could have responded initially is implicit in my pass after double.The problem (such as it is) is that GiB doesn't recognise that you might rebid on 5 cards for competitive reasons (and given the impossibility to rebid your second suit at level). But I've still seen it do worse things than raise you in a manner that should be protected by LoTT.IMO the truly bad bidding is by EW who have game. Quote Link to comment Share on other sites More sharing options...
steve2005 Posted February 18, 2023 Report Share Posted February 18, 2023 IMO the truly bad bidding is by EW who have game.your lucky you are not doubled!look at all the aces out against you!! Quote Link to comment Share on other sites More sharing options...
pescetom Posted February 18, 2023 Report Share Posted February 18, 2023 your lucky you are not doubled! Only relatively: -500 vs -650 is still worthwhile. Quote Link to comment Share on other sites More sharing options...
smerriman Posted February 18, 2023 Report Share Posted February 18, 2023 Why does GIB do this? GIB is programmed that in advancing 1♠, it needs 5-7 total points to bid a LOTT 3♠, and not to simulate to overrule its decision (wise in this early stage in the auction IMO). So it passes. GIB is unrelatedly programmed that later in the auction, if it determines it has a 10 card spade fit and the opposition have shown values, simulate a number of deals matching the auction to date, and determine whether 4♠ would score better in the long run than passing. If so, bid 4♠. It runs this simulation, sees that pass is best by a long shot, therefore passes. The free version of GIB is crippled by changing the logic to this: GIB is unrelatedly programmed that later in the auction, if it determines it has a 10 card spade fit and the opposition have shown values, simulate a number of hands for partner, and determine whether 4♠ would score better in the long run than passing. If so, bid 4♠. 2 Quote Link to comment Share on other sites More sharing options...
msheald Posted February 19, 2023 Author Report Share Posted February 19, 2023 Thank you, all, I appreciate the comments. Mike Quote Link to comment Share on other sites More sharing options...
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