smerriman Posted October 24, 2016 Report Share Posted October 24, 2016 This is the last thread I'll post about Gib's defense - nothing much more to be said if this never gets fixed. [hv=http://www.bridgebase.com/tools/handviewer.html?sn=smerriman&s=SAK52HT54DAT54C54&wn=Robot&w=SJT76H63DKQJCAT32&nn=Robot&n=SQ98HKJ9D96CKJ987&en=Robot&e=S43HAQ872D8732CQ6&d=e&v=n&b=2&a=P1D(Minor%20suit%20opening%20--%203+%20%21D%3B%2011-21%20HCP%3B%2012-22%20total%20points)P1N(2-5%20%21C%3B%202-4%20%21D%3B%202-3%20%21H%3B%202-3%20%21S%3B%206-10%20HCP%3B%207+%20total%20points)PPP&p=S4SAS6S8C4C3CJCQS3SKS7S9C5C2C7C6C8D3D4CTSJSQH2S2C9D7S5CASTD6D8H4H6H9HQH5HAHTH3HJH7D5DKHK&c=7]400|300[/hv] Skip forward to trick 11, from East's perspective. All South and West have are 6 diamonds between them. There are 20 possible ways these could be arranged. In 18 of these, returning a heart results in *less* tricks than returning a diamond. In 2 of these, returning a heart results in the same number of tricks as returning a diamond. Gib returns a heart. This means it only simulated two of the twenty possibilities. Even basic robots should do better than that. This needs to be fixed. Quote Link to comment Share on other sites More sharing options...
1eyedjack Posted October 24, 2016 Report Share Posted October 24, 2016 It might have simulated 4. But I agree it seems unlikely Quote Link to comment Share on other sites More sharing options...
smerriman Posted October 24, 2016 Author Report Share Posted October 24, 2016 It might have simulated 4. But I agree it seems unlikely A single positive result for a diamond would result in the overall average for a diamond being more than a heart, so it couldn't be more than two. Quote Link to comment Share on other sites More sharing options...
manudude03 Posted October 24, 2016 Report Share Posted October 24, 2016 Just making sure, but you are aware that the south hand is dummy yes? Also as far as I know, the gibs don't make any inferences from their own carding so it is quite possible West has ♥K and ♦QJ left as far as East is concerned even though it has been denied by West playing 6 then 3. Quote Link to comment Share on other sites More sharing options...
smerriman Posted October 24, 2016 Author Report Share Posted October 24, 2016 Just making sure, but you are aware that the south hand is dummy yes?Ugh, you're right. I had forgotten things were flipped - always find it so confusing with human declares and dummy at the bottom. OK, ignore this thread for now. Quote Link to comment Share on other sites More sharing options...
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