pdca Posted June 13, 2011 Report Share Posted June 13, 2011 Here's how it went When there were 4 tricks to go, GIB somehow "forgot" about the last trump and went down 2 instead of pulling it and going -1. Quote Link to comment Share on other sites More sharing options...
Bbradley62 Posted June 13, 2011 Report Share Posted June 13, 2011 I'm curious about the 2♦ bid. Does it deny a 4-card major? Quote Link to comment Share on other sites More sharing options...
mgoetze Posted June 13, 2011 Report Share Posted June 13, 2011 That is indeed a strange mistake, I can only assume that in every single simulation the ♠7 and the ♥10 were in the same hand and so GIB thought it didn't matter. Was this a basic robot or an advanced robot? Quote Link to comment Share on other sites More sharing options...
pdca Posted June 13, 2011 Author Report Share Posted June 13, 2011 That is indeed a strange mistake, I can only assume that in every single simulation the ♠7 and the ♥10 were in the same hand and so GIB thought it didn't matter. Was this a basic robot or an advanced robot? I'm not sure, happened in robot tournament. Quote Link to comment Share on other sites More sharing options...
BunnyGo Posted June 13, 2011 Report Share Posted June 13, 2011 That is indeed a strange mistake, I can only assume that in every single simulation the ♠7 and the ♥10 were in the same hand and so GIB thought it didn't matter. Was this a basic robot or an advanced robot? That was my thought too, but that would be virtually impossible with even 100 simulations. Quote Link to comment Share on other sites More sharing options...
barmar Posted June 14, 2011 Report Share Posted June 14, 2011 I'm not sure, happened in robot tournament.Tournament robots are all advanced. You only get basic robots with the $1/week purchase. Quote Link to comment Share on other sites More sharing options...
barmar Posted June 14, 2011 Report Share Posted June 14, 2011 That was my thought too, but that would be virtually impossible with even 100 simulations.Even with only 20 simulations, it's about a million to one. That's the power of geometric progressions. Quote Link to comment Share on other sites More sharing options...
BunnyGo Posted June 14, 2011 Report Share Posted June 14, 2011 Even with only 20 simulations, it's about a million to one. That's the power of geometric progressions. Yeah, but I said 100 because with people playing with robots as often as they do and as many hands as they do a 1 in a million occurrence isn't too unexpected. Whereas a 1 in a 2^100 occurrence is (almost) always a statistically significant event. Actually, another possibility is that it gave a 100% likelihood to the same player to have the long spades and hearts, and so all the simulations were based on a faulty premise. Quote Link to comment Share on other sites More sharing options...
barmar Posted June 14, 2011 Report Share Posted June 14, 2011 That may be it. It knows the exact spade distribution because North didn't overcall 1♠. And if it interprets North's takeout double as showing heart shortness (ignore the explanation, which says 2+H), then South has to have the long heart. Quote Link to comment Share on other sites More sharing options...
cloa513 Posted June 14, 2011 Report Share Posted June 14, 2011 It doesn't which hand has the last heart- it must be taken out when you still have ruffing strength and cashable cards. 1 2 Quote Link to comment Share on other sites More sharing options...
barmar Posted June 15, 2011 Report Share Posted June 15, 2011 If the hand with the last heart also has the last spade, it doesn't matter which order you play those two tricks. GIB doesn't understand the concept of a 100% play. If its simulations show that two plays get the same result, it picks one of them at random. I can't count the number of times I've seen GIB unnecessarily cash a trick in a side suit either before or in the middle of drawing trumps. Luckily, it rarely runs into bad breaks that cause this to be punished. Quote Link to comment Share on other sites More sharing options...
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