thorvald Posted August 29, 2022 Report Share Posted August 29, 2022 [hv=url=https://www.bridgebase.com/tools/handviewer.html?bbo=y&lin=pn%7CThorvald%2CRobot%2CRobot%2CRobot%7Cst%7C%7Cmd%7C2S3HQDAKJ642CAKQJ2%2CSAQ64HKT87D987C65%2CST5H643DQT53CT874%2CSKJ9872HAJ952DC93%7Csv%7C0%7Cah%7CBoard%208%7Cmb%7CP%7Cmb%7CP%7Cmb%7CP%7Cmb%7C1D%7Can%7CMinor%20suit%20opening%20--%203%2B%20%21D%3B%2011-21%20HCP%3B%2012-22%20total%20points%7Cmb%7CP%7Cmb%7CP%7Cmb%7C2D%21%7Can%7CMichaels%20--%205%2B%20%21H%3B%205%2B%20%21S%3B%2011-%20HCP%3B%209-12%20total%20points%3B%20forcing%7Cmb%7C3C%7Can%7C4%2B%20%21D%3B%2021-%20HCP%3B%20rebiddable%20%21C%3B%203-card%20%21D%3B%2018-22%20total%20points%7Cmb%7C4H%7Can%7C4%2B%20%21H%3B%2011-%20HCP%3B%207-12%20total%20points%7Cmb%7CP%7Cmb%7CP%7Cmb%7C5C%7Can%7C5%2B%20%21D%3B%2021%20HCP%3B%20strong%20rebiddable%20%21C%3B%203-card%20%21D%3B%2022%20total%20points%7Cmb%7CP%7Cmb%7CP%7Cmb%7CP%7Cpc%7CD7%7Cpc%7CD3%7Cpc%7CC9%7Cpc%7CD2%7Cpc%7CH9%7Cpc%7CHQ%7Cpc%7CHK%7Cpc%7CH3%7Cpc%7CD8%7Cpc%7CDT%7Cpc%7CC3%7Cpc%7CD4%7Cpc%7CS2%7Cpc%7CS3%7Cpc%7CSQ%7Cpc%7CST%7Cpc%7CD9%7Cpc%7CD5%7Cpc%7CH5%7Cpc%7CDJ%7Cmc%7C9%7C]399|300[/hv] What is interesting is the explanation of 5♣: 5+♦, strong rebiddable ♣, because ♦ is at least strong rebiddable and might be longer Quote Link to comment Share on other sites More sharing options...
thorvald Posted August 30, 2022 Author Report Share Posted August 30, 2022 Quite interesting I have found that when bidding this hand with the old version of GIB North will not pass over 4♥ dealt 18 hands at time 0.35redealt 21 hands at time 0.37book bid 0% chance of continuing auctionbook bid [default] P, considering P 5Cprognosticate at time 0.39complete at time 0.40; size 17 analyzed 17 deals (17 current) at 0.46 sec5C: 6.47 (prog 315.29 par 264.71)P: -5.97 (prog -51.76 par -51.76) But interesting North is not considering 5♦ Quote Link to comment Share on other sites More sharing options...
smerriman Posted August 30, 2022 Report Share Posted August 30, 2022 There's heaps of threads on GIB not giving preference correctly. In this case, it thinks you've shown longer clubs than diamonds, even though that's nonsense. The function that does this is hidden in the code rather than the database, but my suspicion is that every time you bid clubs, it increments by 1 the number of clubs and diamonds you hold, which sounds reasonable. The problem is that the since the first bid of clubs is strong at the 3 level, it starts clubs at 5, and diamonds only started at 3 for the opening bid. So each time you increment, it's keeping clubs one higher than diamonds. Quote Link to comment Share on other sites More sharing options...
thorvald Posted August 30, 2022 Author Report Share Posted August 30, 2022 Yes, GIB is just not understanding the bidding - implied reasoning is difficult. Now that means with a hand like this you will have 2 options: 1: Double 2♦ to show a rebiddable suit, then later bid ♣2: Bid 3♦ and then later bid ♣ In this situation it could be nice to have 4NT to show both minors Quote Link to comment Share on other sites More sharing options...
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