AyunuS

http://tinyurl.com/qa82v74 Ugh, I couldn't seem to get it to tell me what my bids would mean during the hand, so I bid it wrong, but it still seems to me that it runs from doubles too much. They bid too much before they finally stopped bidding. And west has 18+ points?????

While that is true that opener can pass even with extra values, GIB seems to usually bid again if it has something good. And then GIB also makes the mistake of assuming everyone else bids exactly how it does. So even though it's probably technically wrong, with how it currently works, it probably does put opener at a relatively weak hand. Although you are correct that it probably would be a better player if it didn't assume such things. Without this assumption, I do agree that 3NT is too risky and unlikely to work here.

I agree that if it does want to bid something here, it needs to be 1NT rather than 2♥. 2♥ would lead to at least an invite if opener has 17 or 18 points. 1NT could often escape back to 2♥ if opener responds with 2 of a minor. The 1NT is safer.

I think its bid is pretty reasonable. Consider how many HCP the other team has. East has at most 5, and possibly fewer. West has at least 11, but not enough to bid again. So due to not enough to bid again, I'd put west at around 11-15. So if you add those up, the other team has 11-20, but you have down at least 9, so your team has at least 22, so the other team only has 11-18 HCP. So they most likely have about 15 HCP, so there's a good chance you have game. If I'm slightly off then some bad sims could easily result in it thinking this.

http://www.bridgebase.com/tools/handviewer.html?myhand=M-10822341-1379740134 Ugh, if my bid hadn't limited my hand at all according to the description and I could still have up to 22 points, and it has a decent hand at least, and yet only 1 heart, why would it pass? Unless my bid's description is wrong, we have a good chance of having game, and it definitely looks like it has something it can bid to me. I don't see how pass is a good bid here.

You know, that's not that bad of a strategy. I just hadn't thought of bidding 2NT over 1NT response with 19 HCP. Then its 1NT response doesn't seem too bad. It knows it can just always retreat to hearts I guess it can usually stay out of most of the trouble since it's only a little weaker than a normal 2♥ response. Well then this is no big deal.

Check this out: http://img843.imageshack.us/img843/6781/widu.png Since when is it good to respond 1NT with 4 points? Shouldn't it just pass? True in this case I made it but still, I had a better than normal hand for what I bid since the singleton club really helped and most of the time a balanced 19 HCP hand would bid a game and not be able to make it here. Also a fewer than 19HCP hand could also get past a bid that it could actually make, too. I have trouble getting the handviewer link thingy to post where you don't have to click it to see the hand so I'm going to try just having the image.

http://tinyurl.com/q32n9wp East's hand seems not good enough to open 3♠. With west's hand opposite a 3♠ opener, of course you want to think slam when you should have no out of trump losers. And yet it couldn't even make 5♠ due to east's bad hand. So even though they have great hands they end up losing points.

Wow, then maybe this wasn't as interesting as I thought it was if you figured it out so well. In any case, I thought it was interesting that a grand slam would be bid in a case where the defense is stuck trying to figure out what suit to lead. If they lead anything but a spade, the bid makes, but if they lead a spade, it's down 1. Although east did very poorly describe his hand so he actually had a bunch of spades lol. East/west still have 7 winners on heart, 5 on diamonds, and 1 club. http://img542.imageshack.us/img542/2802/210k.png

http://img194.imageshack.us/img194/725/xw52.png Pretend that you're north and you have to lead something. You can lead anything you want in case that wasn't obvious lol. Which is the best? After a few people state their ideas about it I'll show the full hand.

http://tinyurl.com/kqsxw7n I thought east showed a pretty good hand here and it has a very good hand itself. 4NT probably shows at least some extras and with west's hand, it sure doesn't need many extras to make. And it even has all the keycards but 1 so it doesn't need to worry about getting stuck in slam with too few, and it has just the right support you'd want, too, with good heart and diamond support and first round controls on the suits you likely want to keep it away from so that the first round on them is what's most important, too. Although I will admit it may be east's fault considering east seemed to think west only had 1 keycard, but west could have potentially had some 2-suited hand that was 14+ points and still only 1 keycard. Or, maybe 3♦ somehow limited east to 12-13 total points or something like that but I think it's just 2-suited of 5+♥ 5+♦.

So with the new version where you've shown the Q of spades and the other 2 A, it should easily bid a grand. Count the tricks, 7 spades, 2 of each other suit, which makes 13. And it shouldn't need to worry about an entry to dummy when it has the club. So it makes 7NT always with what you've shown so far.

True, I could have won 12 tricks even if didn't lead K♣, but I still think K♣ was a bad lead when I bid clubs and could have had something like AQJ of clubs and needed the extra club tricks to drop diamonds since I didn't necessarily have the top diamonds.

That other thread asking if GIB has a sense of humor reminded me of this funny hand I had for a long time but never posted. Just watch the first trick. It's really funny. And it probably should count as a bug, too, since it was very bad defense. http://tinyurl.com/nl3xov2

http://tinyurl.com/l7n5u6c After counting the singleton club, it has 21 total points, and my bid showed 6+, so it easily should have kept bidding things until at least 4♠.

Well when I play with a robot, I do try to bid like one so that they're more likely to bid correctly. 3♠ was only 10-12 total points and since it gives a little for a singleton, that's how many points I have. What I thought was questionable was the 2♠ when it only had 3 spades in its hand. Anyway, iviehoff, that sounds like it might work, but that's not how I did it. The spades are actually a perfect 3-3 split between them.

That is pretty much correct. Although there's one more thing you have to get past. Where do the K and Q of spades need to be and how do you play so that you get around them good enough to take with the J?

I was just in a tourney where my partner made a questionable spade raise and then I ended up in 4♠ with hands I wouldn't think should have bid it. Even worse, it gets doubled and then I notice my team didn't even really have a spade fit! But I made it somehow! Can you figure out how? Opening lead is Q♥ and you win it with A. I also fear that there will be too many solutions that rely on north having the big clubs, so to eliminate that and make it easier to figure this out, I will tell you that south has both the A and Q of clubs. I'll post the solution later. http://img812.imageshack.us/img812/52/2c46.png

http://tinyurl.com/kxl7hhu Ouch. Can 3♦ really be passed here with only 4♦?

http://tinyurl.com/lsoz6js It pulled from 3NT with a laughable 853 of spades. I had already denied having 5+ spades. I fail to see how this is possibly a good bid.

But your thinking that it wouldn't pass 5♣ idea doesn't work. Once it uses RKCB, the suit is locked in. You can't bid any other suit or it'll put it back on that suit again. Tbh bidding 4♣ is probably what went wrong with the first one.

http://tinyurl.com/n3kzqmx I showed 6+ points and it has 20 total points, and yet, it somehow decides not even to make another bid at level 3? How could it possibly underrate its hand that badly?

Huh? It still does for me.

It is most definitely solvable, although it'd take a lot more effort than any of you probably think. Consider that the entire system could be different based on if your team went first or not, and on each combination of vulnerable, too. But there are only finitely many combinations of cards. Each system can be assigned a score based on its results in every possible hand, to come up with some sort of average. There would be one system that got the highest average. Same for defense. Of course, if you faced opponents that used many different defenses you'd have to come up with different systems to deal with each of those, which is unbelievably many possibilities if you ever plan to actually play competitively using such a system. And the though of trying to show that all possible other systems would result in a worse value on average is just an absurd amount of work to try to get through, even in one little situation. And then imagine doing that for each other situation. There won't be a solution to it any time remotely soon. Long story short, I'm a math freak of nature and I can tell for sure that it is solvable, but it's hard for me to come up with a proof it. Edit: btw, Zermelo's theorem doesn't work as this isn't a game of full information and one can lie about one's hand.

Ugh, this was so bad. Its bid showed it had exactly 4 diamonds, and then there's no way my hand can raise the bid above 4 diamonds seeing as that I think we only have a 4-4 fit, and yet, it has way better. These hands can make 6 diamonds but with what its bidding showed, I don't see any way we can get there, or even to 5 diamonds. http://tinyurl.com/m7cc5d9