Plugging leaks (?)
#1
Posted 2016-October-05, 09:13
Hand 1
Opener KTx KJxxxx x AKJ
Resp Q7xxx Q xxxx Qxx
1H* 2C**
4S
* generally 14+ unless opener has side spades, then it's 10+
** 5+ spades, 3-9 points
Hand 2
Opener Ax KQ9xx KQxx 8x
Resp Qxx Axx xx QJ9xx
Pass 1H
2D* 4H
* 3 card constructive raise or better (cannot be too good as a passed hand obviously)
ATB if any
Winner - BBO Challenge bracket #6 - February, 2017.
#2
Posted 2016-October-05, 09:24
I don't see any harmful information leak and it's overrated against good opponents anyway.
What is baby oil made of?
#3
Posted 2016-October-05, 10:19
The second hand depends on whether you have game tries that can find the duplication. This hand is a disaster for LTC - opener has 5 losers (5.5 adjusted) and responder has 8 losers (8.5 adjusted) so game is indicated even counting the adjustments. My first impression is that 4H is bad luck but I would have expected you to have company. Only you know if your system is sophisticated enough to discover the duplication. Mine isn't - my single raise shows only 3 trump and we have help-suit and short-suit game tries available and still I can't come up with a sensible auction to avoid game (KQxx is too much for a HSGT for us.) Well, I can, but it's 1H P (guess to only bid 2H) P (guess to pass.) My guess is that a lot of good pairs would get to 4H on these cards and if the other table didn't, chalk it up to bad luck.
#4
Posted 2016-October-05, 10:47
On the 2nd, opener might have stalled with 2N which shows a 5 loser hand without reference to location. Responder looking at one prime cover card and one of the black queens surely working would bid game I think.
Winner - BBO Challenge bracket #6 - February, 2017.
#5
Posted 2016-October-05, 11:08
Phil, on 2016-October-05, 10:47, said:
On the 2nd, opener might have stalled with 2N which shows a 5 loser hand without reference to location. Responder looking at one prime cover card and one of the black queens surely working would bid game I think.
You've gained the room to do better than that. Along with help suit, we use 2nt to ask responder to bid up the line suits that they would accept a hsgt on controls. Works (maybe) on #2 but I doubt it is the best use, just comfortable (and rare) for us.
No good answer to #1 on my card but if you are going to bid like this to gain flexibility ya gotta try something that takes advantage of it at least some of the time.
What is baby oil made of?
#6
Posted 2016-October-05, 11:29
Edit and that's essentially what happens after 1M 2M-1. After the loser count is described, responder shows secondor values.
Winner - BBO Challenge bracket #6 - February, 2017.
#7
Posted 2016-October-05, 16:10
The second one is harder. The simple answer is to say you were 24-high with an 8-card fit, but it still seems that opener just bid game when perhaps a game try would have been a better idea. If opener has shown 14+ then responder will bid game when it's right.
#8
Posted 2016-October-05, 16:15
So in some sense, opener on 2 isn't a minimum per se.
Winner - BBO Challenge bracket #6 - February, 2017.
#9
Posted 2016-October-07, 05:12
On B2, what's the range for a constructive raise?
#10
Posted 2016-October-07, 07:58
Jinksy, on 2016-October-07, 05:12, said:
On B2, what's the range for a constructive raise?
1. No, it could be a doubleton on 2524 for instance.
2. A really good 7 with two definite cover cards - trump king and a side ace. Trump Q perhaps. There is no upper limit - although responder has the option of starting a GF relay if it suits him.
Winner - BBO Challenge bracket #6 - February, 2017.
#11
Posted 2016-October-07, 18:29
Phil, on 2016-October-07, 07:58, said:
This feels like it puts pressure on a lot of opener's hands. What do you gain in exchange?
Quote
North feels too soft to drive to game opposite that for me. Assuming you play naturalish continuations, a 3♦ game try seems to suit the hand pretty well. I keep underbidding in constructive auctions, though.
#12
Posted 2016-October-09, 07:44
Phil, on 2016-October-05, 09:13, said:
Hand 2
Opener Ax KQ9xx KQxx 8x
Resp Qxx Axx xx QJ9xx
Pass 1H
2D* 4H
* 3 card constructive raise or better (cannot be too good as a passed hand obviously)
ATB if any
That's not a constructive raise in my book. Points/schmoints. It isn't just the quantity of points. It is also the quality of the points. Queens and jacks in side suits are of unknown value. Those queens and jack probably netted you no tricks on this board.
NV or imps, does it matter? Doesn't it still require 10 tricks for a major suit game?
pass - 1♥
2♣
2♣ natural would be an overbid. But at least opener 'knows' the partnership hands don't fit.
#13
Posted 2016-October-09, 16:26
At IMPs, bidding or not bidding NV games is about a wash. If you bid game undoubled and it goes down versus the opponents settling for a part score, you're loss is about -190 (i.e. -50-140). If you bid game and it makes while the opponents settle for a part score, you gain about +250 (i.e. +420-170). So the swing either way is about 6-7 IMPS. So while you don't want to be especially timid, you needn't be super aggressive either. Just use your best judgment and accept the result.
So, I would give opener a charge for the jump to game.
Hand #2 - This hand is a little tougher. Opener does have a 14 HCP basic 5 loser hand. Mel Colchamiro found though that with 5-4 hands, the 5-6-7 LTC mantra (5 loser -> bid game, 6 loser -> invite, 7 loser -> pass) doesn't work very well. At least, that's the feedback he got from his students. So here again with a 14 point hand with only 4 controls, you might want to invite versus jump to game. Indeed, some players who adjust LTC for the honors held would treat the two KQxx(x) suits as more like 1 1/4 losers each making the hand a 5 1/2 loser and in an invitational range.
If 3 ♦ would be a natural or help suit game, that would seem to work well on this hand. With the bulk of responder's points in suits that opener is likely short in and being quacks, bidding 3 ♥ would seem right.
So I'm giving opener a second charge for jumping to game on this hand also.
#14
Posted 2016-October-10, 04:41
Second is tempting, but I'd be far more comfortable facing a 3 card limit. Is an A and K good enough for a constructive raise? For me, A, K and side Q makes a 3 card limit, and A, K is sound enough for constructive. Not a sort who places much on Q's.
Vul you need to play hitch and hesitate.
#15
Posted 2016-October-10, 05:40
The first one, opener should have made some kind of game try but you might end up in game anyway. The club duplication may not be diagnosed.
The second one, opener overbid. If a 2♥ rebid shows a 3rd seat junk opening then he has to make some kind of game try to show a genuine but minimum opening. Then responder signs off.