bidding a grand slam
#2
Posted 2017-June-21, 02:04
cue-bidding should now get you there. East will cue-bid the ace of hearts and west should cue-bid in spades. Note: even if you play the style of cue-bidding where you show first round controls before second round controls, the player known to hold the weaker hand opposite a 2♣ opening can legitimately show a second round control in this situation. East cue-bid 5♣ and west cue-bids 5♥. This is the news that east is hoping for and east can probably now bid the grand slam.
#3
Posted 2017-June-21, 02:39
I'm sort of with Tramticket with his analysis, but there's a few assumptions that Novice/Beginners may not aware of - namely showing second round controls with the weaker hand after a fit has been found. Even so, it looks the only way to reach the grand.
#4
Posted 2017-June-21, 03:08
2C - 2D
3D - 4D (Good hand and good support. Let's talk about slam.)
4H - 5H (Slam looks good, but I have no 1st round controls. Is the HK is a key card for you?)
7D
#5
Posted 2017-June-21, 03:39
To get all of the information probably takes more complicated agreements than an N/B pair would have. A relay system would probably show the 4441 shape, ♠KQ and ♥K at the 5 level for example. Over 2♣ though, my feeling is that this is actually a fairly difficult problem and beyond the scope of this forum.
#6
Posted 2017-June-21, 04:58
portia2, on 2017-June-21, 01:36, said:
Short answer is most partners and I would not bid it. 6D every day of the week, 6NT maybe, but to bid 7D with the tools we have in the box, we'd have to have reason to be swinging.
#7
Posted 2017-June-21, 05:36
silvr bull, on 2017-June-21, 03:08, said:
2C - 2D
3D - 4D (Good hand and good support. Let's talk about slam.)
4H - 5H (Slam looks good, but I have no 1st round controls. Is the HK is a key card for you?)
7D
Unfortunately partner's hand was KQ, Kxxx, Jxxx, xxx and the grand had no play
#8
Posted 2017-June-21, 06:21
Cyberyeti, on 2017-June-21, 05:36, said:
No play is a bit of a stretch since you make it with ♠A onside and an automatic ♣-♥-squeeze if the defender with 4+♣ holds 5+♥ or ♥QJx/QJxx. On the lay-out of ♠A onside and ♥QJ tight, the contract is cold. Aside from all the practical extra chances that the defenders will make fatal discards on the run of all your trumps. Though I agree with the gist of your post that a grand slam with the hand you gave as dummy is a bad one.
#10
Posted 2017-June-21, 10:02
Mkgnao, on 2017-June-21, 06:21, said:
I didn't include 10♥ but yes you're down to a very unlikely position.
It's a common thing that people construct an auction to the right spot without thinking that it might not be the right spot with other hands consistent with the auction to date
#11
Posted 2017-June-21, 10:18
I agree that 7D would be very difficult to reach for any novice pair. My favorite partner and I might not reach it, but if we did, it would be using a bid that is not appropriate for discussion in this forum.
#12
Posted 2017-June-21, 10:58
Mkgnao, on 2017-June-21, 06:21, said:
An interesting and amusing usage of the word cold. Even putting aside the matter of the ♥T, you first need a specific layout and even then you have a guess if North is the defender with ♥QJ. On seeing an honour drop under the ace, is it from ♥QJ or a singleton? The point CY was making is the same as mine though, that knowing about the ♥K is not enough to bid the grand slam safely. And I think it is correct in the N/B forum to let the OP know that they did nothing wrong in missing this grand and not to suggest double-dummy bidding sequences.
Arend's approach for example (simply bidding RKCB) is eminently practical and almost certainly ends in 6 regardless of whether Opener shows 4 key cards or an even number with a void. This strikes me as a model answer.
Finally, Kaitlyn posted while I was still working on this, and this auction suffers from a similar issue. The club shortage is now found but not the ♥K. So we might end up with 7 diamonds, 2 clubs, 2 club ruffs (or ♣QJ) and a heart but nowhere to park that last irritating ♥4. So even if splinters are available in a bid that is a jump to game, there is no reason to assume that this will lead to the grand slam being bid.
#13
Posted 2017-June-21, 14:33
Opener after 4 ♦, should ask "What do I need to know to make slam possible?" The answer is that there are no more than 1 loser in ♣ and ♥ combined. Since that means controls are needed in specific suits it should push opener toward cue bidding. So 4 ♥ shows opener's cheapest control. (I'm assuming you show any control A, K, or shortness in this auction.)
Responder holding the ♥ K knows that opener's ♥ control is the A or shortness. So, responder continues by showing his ♠ control with 4 ♠.
Opener continues with a 5 ♣ control bid. It shows opener is still interested in slam, has a ♣ control, and isn't worried about As by not using an A asking bid (Blackwood, RKCB, etc.)
Responder should continue cueing with a 5 ♥ control bid. At this point, opener knows there are no ♥ losers as responder must have the ♥ K or a stiff, so continues with a 5 ♠ control bid to elicit more information if possible from responder.
Responder now can bid 6 ♣ to show the ♣ control, in this case, shortness.
Opener looking at ♣ AK knows responder's ♣ control must be a stiff or void, so responder's ♥ cue must be the ♥ K. Even if responder has only ♦ xxx, 7 will still make if responder has ♠ A for his ♠ control and, even if not, various squeezes might be available. And anytime responder has ♦ xxxx, 7 should be cold barring some exotic ruff. Opener should bid 7 ♦.
So the sequence should be
2 ♣ - 2 ♦
3 ♦ - 4 ♦
4 ♥ - 4 ♠
5 ♣ - 5 ♥
5 ♠ - 6 ♣
7 ♦
With some of my partners we would probably get the above auction. With some partners playing 1st round controls first we probably wouldn't get there. However, with my favorite partner, playing a specifically structured form of 1st round controls first, it would be easy peasy.
2 ♣ - 2 ♦
3 ♦ - 4 ♦
4 ♥ - 4 NT (4 ♥=1st in ♥, 4 NT=waiting w continued slam interest, no 1st in ♠)
5 ♣ - 6 ♣ (5 ♣=1st in ♣, 6 ♣=2nds in ♥, ♠, and ♣)
7 ♦
#14
Posted 2017-June-21, 18:38
The_Badger, on 2017-June-21, 02:39, said:
I'm sort of with Tramticket with his analysis, but there's a few assumptions that Novice/Beginners may not aware of - namely showing second round controls with the weaker hand after a fit has been found. Even so, it looks the only way to reach the grand.
You might want to look at my post on that thread from today 6-21, as I describe my thoughts looking at 2C openings and follow-ups. Would have worked great here as my responders with game-forcing values show shortness on the first bid.
#15
Posted 2017-June-21, 18:42
Zelandakh, on 2017-June-21, 03:39, said:
To get all of the information probably takes more complicated agreements than an N/B pair would have. A relay system would probably show the 4441 shape, ♠KQ and ♥K at the 5 level for example. Over 2♣ though, my feeling is that this is actually a fairly difficult problem and beyond the scope of this forum.
Agree. The issue is not just finding the heart K but also finding the 2 club losers are handled before 7 can be reasonably bid.
#18
Posted 2017-June-22, 00:46
If you don't want to trot out 5C and instead raise to 4D, I still think you can get to 7.
2C 2D
3D 4D
4H 4S
5C 5H
5S 6C
7D
I would bid 4S over 4H, because the responder's hand is great opposite a 2C-3D opener (which ought to show 9.5 tricks or so, not the 8.5 you have for a major). I think bidding 5D there is chicken-hearted. If you don't like 4S, then you might try 4NT on no keycards and get this auction:
2C 2D
3D 4D
4H 4NT
5NT(1) 6C(2)
7D(3)
(1) Even number of keycards and a void
(2) With a major as trump suit, 6C asks for the void (if below the trump suit, else bid the trump suit), but that's impossible to show when the trump suit is diamonds, so this is a general grand slam try
(3) Opener has 10 tricks, so it's an easy accept
There are other roads to the grand as well.
Cheers,
mike
#19
Posted 2017-June-22, 04:54
Phil, on 2017-June-21, 20:09, said:
I thought of 2C-2D-3D-5C, but dismissed it on the grounds that some of my partners would not recognise it and probably pass. With others, if they produced that 5C rebid on me, I'd take it as a splinter and bid on, but my fingers would be crossed under the table. Some of these 2C sequences come up so rarely as to effectively never come up and therefore do not get discussed - with much justification - there are other things for a partnership to work on which will give greater results.