smerriman

Any resemblance of your post to the actual situation seems to be pure coincidence as well.. - sure, any human player will strain to response to 1♣, especially holding a major.. but that is irrelevant, as East didn't hold a major.. pass seems clear. Unless you're saying you're making any inference that East is more likely to hold a major now, and that changes your bid? I don't see how in the slightest. - sure, GIB does poorly if you try to show a strong hand after doubling, but this was a human partner so also not relevant..

Given the subject line, perhaps the best way of remembering this is OM NOM NOM.

barmar has stated multiple times in the forum that daylongs tournaments and solitaire tournaments do not count towards TCR. So either something has changed this year, or it is Gerardo's post that is indeed false. No, it does not. Your original message already got a reply saying why your TCR dropped, and it wasn't due to subbing.

A good hand with both majors.

You might like to try: https://bridgewinners.com/games/#high_card_hunter With some practice you can learn to count points extremely quickly, so given the limited space already available, I suspect having it as part of the hand records isn't something that would benefit many people. It's definitely something worth practicing, just probably not on BBO. (More of use would be one of the par scores tables, but there isn't really room for that either).

Just in case I wasn't clear from my initial post, a heart continuation is 100% the correct play in all forms of the game. GIB is clearly making a horribly *wrong* play. But there is a reason why a program which has zero bridge sense and can only analyse double dummy will make mistakes; and I was just pointing out there why discarding a club will make such a robot more likely to make that mistake (even if it would only work rarely). Any human player would make the correct play of a heart regardless of what you discard.

That's why it surprised me; normally it is incomprehensible, while here it was entirely logical (and replicable / exploitable), even if that logic has a (pretty hard to correct) flaw.

This even surprises me, but the answer to your question is yes, this is predictable knowing how the robots work. In this auction, South has promised exactly 4432 distribution with 12-14 high card points (with this strength, it rebids hearts with 5, and raises a minor with support). So there are extremely few possible hand layouts, meaning complete analysis is quite easy. GIB West will simulate possible hands for South, and then pick the card which gives the best result on average. It will not make bridge-related inferences based on what cards you decide to discard (ie it won't assume you didn't throw away a trick). Let's solely compare two lines of play - one where you discard a diamond on trick 1, and one where you discard a club. In several cases, what you discarded makes no difference. For example, when it considers the case where the only points East holds is the Queen of spades, double dummy will tell it to lead a heart in both cases. Or, if East holds the Ace of spades, double dummy will say it's completely irrelevant what it plays at trick 2 - it can switch or continue with hearts freely. However, suppose East holds the King of diamonds - GIB will consider a layout like this: [hv=https://www.bridgebase.com/tools/handviewer.html?n=SQJ9DAQ98CAKJT63&e=S652HT8654DK7C975&s=SAKT4HQJ92DJ52CQ8&d=s&a=6NPPP]400|300[/hv] If you discard a diamond, it will consider the king of hearts equally as good to play as any other suit - down 1. However, if you discard a club, it MUST play a diamond at trick 2 for down 2. Or this layout, where East holds some quacks: [hv=https://www.bridgebase.com/tools/handviewer.html?n=SQJ9DAQ98CAKJT63&e=S652HJT654DJ5CQ97&s=SAKT4HQ982DK72C85&d=s&a=6NPPP]400|300[/hv] If you discard a diamond, double dummy will say 'play anything but the ace of hearts (even low heart is OK)'. If you discard a club, double dummy will say 'don't touch hearts at all'. I've gone through every possible combination of the 2-4 HCP East can have. While many tell it to continue in hearts, the club discard increases the number of outcomes which tell it to switch. If the hands which favor a switch come up more times than not, it will switch. This relies on the randomness of simulations; while the heart continuation is still more *likely* to come on out top, discarding a club will improve the odds in your favor. Is this anything to do with real bridge or real bridge logic? Of course not; real bridge has signalling, and defenders not assuming declarer is an idiot and throwing away an extra trick for no reason. But it's GIB.

I believe it's updated daily, so you'll see it within 24 hours.

Are you playing on wifi? Would recommend she plugs directly into the router as a comparison; if that fixes it, then she has an intermittent wifi connection, either caused by location within your house, or simply the laptop's adapter.

It's restricted to members who have made a minimum (unspecified) number of forum posts, so you just need to get more involved with the forum.

It has many disadvantages; for example, despite the fact it has a randomised delay built in, it can still cause tempo issues. It also means you completely lose the ability to see the previous trick (or potentially more, late in the play), so if you glance away for a second, you may never know what was played. Definitely not something I would recommend turning on by default. And I would estimate the number of people who prefer not having confirm bids on far outweighs the number who don't. There's no need to change what has been the default for many years; and it's very simple to turn it on for those who do. (You aside, who seem to be the only one who gets settings reset!)

svengolly, I'm not following your post at all. You said to follow the step-by-step play; it clearly shows that playing a low diamond on the queen allows declarer to make 11 tricks, while overtaking is correct and holds it to 10. On the next trick, a low diamond lead is best, so East got that right, and it makes no difference whether West ruffs or not; both result in 10 tricks. So where is the error?

Having promised a maximum of 15 points and 3 spades with the 2♣ bid, it's not really possible for you to have a penalty double of spades later, so no, it will never believe you.

I definitely do care if the clubs get buried, since they'll be the most important factor in deciding how high to compete / bid. Clearcut 1♣ for me.

Yeah, I've noticed the same here.

Yes, Robot Reward doesn't work very well with the new system at all - it's very laggy; sometimes I see the hands, hear the beep that it's my bid, and pass - a couple of seconds later, the bidding shows up to see partner bid before me. In fact it's far slower in general; I get through considerably less hands than previously, and it often glitches out with huge gaps between the cards when you're clicking quickly. On top of the scoring issues you mentioned above. But, it's not like Flash is a viable alternative, so you just have to put up with it.

Yes - the definition of rebiddable is here, though GIB can vary from the exact definitions at times. I am guessing you are referring to an auction such as 1D P 1S 2S, where it's pretty standard to play a bid of responder's suit as natural (but a bid of opener's suit as artificial). [Edit - OK, you said to the right, so perhaps not that sequence.)

I took out the last challenge 40-38 - had some fun on the last four boards but it wasn't to be :) https://webutil.bridgebase.com/v2/tview.php?t=ARDCHALLENGE:90af6a17.4baf.11eb.bd23.0cc47a39aeb4-1609450298 Congrats Arend - thanks for the match! And thanks all for participating.

I played the entire second half of that set in a state of shock after that 7♦ save, never seen anything like it.

If you're playing under the ACBL Open Chart, this is listed under Disallowed Bids: and the ACBL GCC states: If you're damaged as a result of an illegal bid, the score should be adjusted to a likely result had the illegal call not been made. edit - I'm wrong, see johnu's post below.

.. isn't that exactly what Vampyr said? Normal variation by vulnerability is symmetric; here it would not be, like your latter example.

The defense wins the first 3 heart tricks with J, K, and A, then the fourth heart is ruffed (and overruffed by declarer). Declarer still has a club and diamond loser.

What do you play an immediate 2♣ as by South (given "standard" would be denying values having not redoubled)? It might be harder for the opponents to find 3♠ if West passes and North competes to 3♣.

This doesn't satisfy the constraint of E/W only being able to make 7NT on a club lead (they make it on all leads).