Response structure for unbalanced 1♦ opening
#21
Posted 2012-February-06, 04:06
There is the structure I've been playing for a good while with okay results, and we haven't really fine tuned all the relays.
Our responses are quite weird but they seem to work somewhat.
1♦ ->
1♥ = Nat or GF relay
1♠ = Nat
1NT = Naturalish
2♣ = Multi sort of bid, either simple raise in ♦, weak in either major or balanced inv (This sounds horrible but it works when it comes up)
2♦ = Inv+ raise, may have 4 card major (Pretty much always 5+♦)
2♥/♠ = Reverse Flannery
2NT = GF with clubs
3♣ = Inv with clubs
3♦ = Pre
Reverse Flannery might be a bit overkill there to handle all the major hands since 4-4 heart fit would be easy to find after 1♠ too but it does help making some bids forcing. Other use for them might be 4M6+C hands since those are really the hard ones to handle.
#22
Posted 2012-February-06, 04:58
After 1♦ 1♥
O bids 1NT = shortage in ♥
Raises = 4 card support
1♠ = either 4351 or 4x6x shape <18 count and then ...
. . R bids 1NT = denies 4 ♠, less than invitational and then ...
. . . . O bids 2/3♥ = 3 card support
. . . . 2/3♦ = 4x6x
. . or 2♣ unnatural forcing, otherwise. And then ...
. . . . O bids 2/3♦ = 4x6x or
. . . . 2/3♥ = 4351 shape, for responder to then bid ...
. . . . . . 2/3♠ with 4 cards
. . . . . . pass to play in hearts
. . . . . . 2NT denies 4 ♠, does not want to play in hearts, invitational
After 1♦ 1♠
O bids 1NT = shortage in ♠
Raises = 4 card support
2♥ = 3451 or 18+ x46x shape and then
. . R bids 2/3♠ to play with 3 card support
. . 3♥ = GF 54xx shape
. . 2/3NT not wanting to play in spades and then ...
. . . . O bids ♦ with x46x shape
With this, responder has the choice of whether or not to play in the major opposite 3 card support.
When responder is 45xx you can always play in the 44 fit rather than the 53
When responder in 54xx you will play in the the 53 rather than the 44 unless responder is GF.
Don't think my partners will take the memory strain, but I think it's sound, and it is natural.
#23
Posted 2012-February-06, 05:24
MickyB, on 2012-February-05, 17:35, said:
"Unbalanced with a diamond suit" is a better initial description than "clubs or balanced [or strong]". It is more likely partner will be able to support us, either preemptively [1D-(P)-3D-??] or when oppo preempt us [1D-(2S)-3D]. Our hand may not have the expected 5th trump, but it rates to meet partner's expectations, especially as he rates to have some club length given that he hasn't decided to show a major instead.
Yes, but "Unbalanced with five diamonds or 4=4=4=1" is better defined than "Unbalanced with four or five diamonds; may have longer clubs". If 1♦ is nearly always five, you can freely raise with three of them. In your second auction, you gain the ability to compete when you have four diamonds opposite 4-5, but you lose when you have three diamonds opposite five.
#24
Posted 2012-February-06, 07:16
fromageGB, on 2012-February-06, 04:58, said:
What I really want is some comments on the rest of the opening bids given that I want to play transfers. I do appreciate the comments on alternative structures and I will certainly think about them but it's not my main focus at the moment.
-- Bertrand Russell
#25
Posted 2012-February-06, 08:55
The only sexy artificial call I like is Golady 2♣. In that, 1♦-P-2♣ is GF and artificial, denying a 5-card major (might have one or both 4-card majors). Opener rebids with one-under, maybe something like:
2♦ = four hearts
2♥ = four spades
2♠ = both minors
2NT = both minors, extras
3♣ = long diamonds
3♦ = long diamonds, stiff club
3major = long diamonds, stiff here
You can add on a "might be invitationbal with support" if you want, or criss-cross works too, or even both (criss-cross being more of a contructive call, as opposed to invitational, then).
This structure allows agreement on a major at a lower level, which allows cuebidding better, which is what I like. You probably would first do a pattern unwind, though. E.g., 1♦-2♣!, 2♦(hearts)-2♥(agreed), 2♠ = 3451 or so, 2NT = 1453 or so.
You might even want to use "Smolen" after this specific auction. In other words:
1♦-2♣, 2♦(hearts)-?
2♥ = spades
2♠ = hearts agreed
That allows all majors to be agreed at the two-level (Opener can re-rebid 2♠ with 4-4-4-1 or 4-4-5-0).
-P.J. Painter.
#26
Posted 2012-February-06, 09:53
OK, comments.
Before you get to opener's transfer rebids, my thoughts on the immediate responses :
> 2♦ = 6+ either major, 5-8(9) points
I found it was too high when responder bids 2M with weak 6 card opposite a shortage, as I used to do. Admittedly with 2♦ you have the option of playing in 2♦ when you are long in ♦, but with a misfit I would prefer to play in 1NT. Make it 7+ and it's good.
> 2♥ = 5 spades, 4 hearts, 6-9 points
Again too high when opener has the hand with both minors only.
> 2NT (semi)balanced invite
May get a problem when the opposition reel off the first 5 tricks in your shortage suit when you are 3 suited. If this could be incorporated in the 2♣ response then at least opener can play in long diamonds, or perhaps bid his shortage to allow responder to escape from NT if his holding in the shortage suit is poor.
As to the transfer opener rebids, I have never played them, but see no problem other than weakish opening hands with a shortage in that major. After 1♦ 1♠, what do you do? It seems that all possible replies mean something else.
If you are supposing that you will want to play in 2♣ with a 1444 opener opposite a 5323 (and many similar configurations) then it's not something I would choose. And if responder is supposed to pass your 1NT transfer when he is 5233 then you are in trouble when you have the 2155 hand.
By not playing transfers, you have an extra bid, of course, to handle this.
#27
Posted 2012-February-06, 10:13
Gnome and I developed 1N to be sort of Gazzilli - that folded in all kinds of awkward strong hands. Responder would rebid 2♣ with any GF (8+) hand, else support diamonds or rebid his major with something weak. Looking back I don't think the hand types were optimal, but I haven't seen anything superior to it either.
Back to the thread, I would treat the responses to 1♦ the same as if the call isn't unbalanced.
Winner - BBO Challenge bracket #6 - February, 2017.
#28
Posted 2012-February-07, 05:38
#29
Posted 2012-February-17, 07:49
awm, on 2012-February-05, 12:15, said:
I've thought about this some more. It seems that even if I like the 2♦ bid as nonforcing with 3-card support, I have 3 hand types to divide between 1NT and 2♣: those with 4 clubs, those with 4 hearts and those with 6+ diamonds and no side-suit. Looking at it this way, it does seem pretty obvious that the 4 hearts hand is the more important one, and it makes sense to bid 1NT with 4 hearts and lump the other two into 2♣. The disadvantage is that we'll sometimes play in 2♦ when we had a better club fit available. The advantage is that we don't need reverse Flannery, and we might be able to free up the 2♥ rebid as well. Does this seem coherent?
-- Bertrand Russell
#30
Posted 2012-February-17, 09:48
mgoetze, on 2012-February-17, 07:49, said:
If you play in 2♦ when you have a better ♣ fit available, the opponents have missed playing in their major.
#31
Posted 2012-February-21, 08:40
it was something like this:
1M - nat
1NT - clubs 6-10 or GF
2C - relay inv+ could have 4M
2D - normal support (6-9) 3+D
2NT - nat inv
3C - 6Cs inv
3D - prempt.
i had a nice structur over 2C which i have writen somewhere.
I like the natural 2D very much and at worse i had to bid 1NT(showing clubs) with 3325 which i dont think its the end of the world.
#32
Posted 2012-March-17, 07:15
Partner does not want to play 1♦-1NT GF relay so that is out.
Given the limited opening it seems to make sense to define the responses of 2♦, 2♥ and 2♠ as "to play".
I think awm has me convinced that 1♦-1♠-1NT should show 4 hearts. 2♣ will the have to be ambiguous as to which is longer. 2♥ and 2♠ will be spade raises (any suggestions as to the difference between those?) or perhaps 2♥ = 15-16 nat. 2NT can be the BWS standard death hand and possibly other hands as well. That leaves 2♦. Thinking aloud, can I get 2♦ to show 3-card spade support? What else do we need it for - anything two-suited is accounted for, leaving 2362, 2263, 1363 and 7+ diamonds. I could open 1♣/1NT on the 2362/2263, fudge a 2♣ rebid on 1363, and rebid a horribly wide-range 3♦ on 7+. Is it worth it? I dunno, probably not.
OK, 1♦-1♥. 1♠ nat is pretty obvious. Here's an idea: 2♦ shows 3-card support 11-14 (15-16 bids 2NT), 2♣ is canapé, and 1NT shows either 4+ clubs with ♦>♣ or single-suited diamonds, with no 3 hearts. Does that sound clever?
-- Bertrand Russell
#33
Posted 2012-March-17, 13:41
1D-1H
.....1S-4 spades or 3145
.....1N-6+ D
.....2C-5D/4C, possibly 3 hearts
.....2D-4 hearts with singleton
.....2H-4 hearts balanced
.....2S-4 hearts and void
.....2N-4 hearts and 6 diamonds
.....3C-1345
This is similar to what we play and is based on awm's structure (he doesn't like our 3C jump rebid). You might ask him for help.
#34
Posted 2012-March-18, 07:32
with the rest of the scheme showing 'I got this'.
#35
Posted 2012-March-18, 16:15
1♦-1♥...
1♠ nat
1N 4♦5♣, if opener bids over responder's preference it's nat, 15-18
2♣ 5♦4♣ (not sure whether distinguishing the two is worth it)
2♦ 6+♦
2♥ normal raise
2♠ reverse(?)
2N 6+♦, not 3♥
3♣ 5♦5♣ max
3♦ 6+♦3♥
etc.
and
1♦-1♠...
1N 54 minors either way (this way opener can always take a third bid over responder's preference)
2♣ 5♦4♥
2♦ 6+♦
2♥ 6+♦, 5 bad ♥ (again, not sure whether it's worth it, probably should be used as some sort of raise)
etc.
Over an artificial rebid by opener, responder's lower bids are usually signoffs, and bidding the suit that hasn't been shown is 4SF. So it's true that responder will have to go fairly high to force the auction (typical problem auction: 1♦-1♠-2♣!-3♣! (4SF)); OTOH opener has an easier time forcing the auction as his rebid will usually at least trigger a preference from responder.
#36
Posted 2012-March-18, 20:36
18-22
3064=3S
4450=3S
11-17
0355=3S
11-14
3073= 3S
6D bal 14+= 2S
3145= 3C
1D-(P)-1H-(??) can be annoying however but you should be ok if 1H showed at least 3H or good 9+ pts
For instance, he doesn't like being used as a human shield when we're being shot at.
I happen to think it's a very noble way to meet one's maker, especially for a guy like him.
Bottom line is we never let that difference of opinion interfere with anything."
#37
Posted 2012-March-20, 02:18
mgoetze, on 2012-March-17, 07:15, said:
That probably means 1♥ INV+ relay is out too? If not, well here is what I like to play...
==
1♦
==
1♥ = any INV+ (see below)
1♠ = natural, non-forcing, possible canape
1NT = hearts, non-forcing, possible canape
2♣ = natural, non-forcing
2♦ = natural, non-forcing
2M = ~3-7, 6+ suit
2NT = mixed raise
3♣ = ~3-7, 6+ suit
3♦ = weak raise
=======
1♦ - 1♥
=======
1♠ = min, <4 spades unless 4441 or 4450 (see below)
1NT = 4+ spades (see below)
2♣ = max, 4+ clubs, <4 spades, <4 hearts except 1444 or 0454, GF (2♦ relay (see below))
2♦ = max, 6+ diamonds, 1-suited, GF
2♥ = max, 5+ diamonds, 4 hearts, GF
2♠ = max, 4441, GF
2NT = max, 4450, 0-3 controls, GF
=======
1♦ - 1♥
1♠
=======
1NT = GF relay (continuations as 2♣ and higher over 1♥ but controls start at 2
2bids = natural with invitational hand
3bids = natural, GF
=======
1♦ - 1♥
1NT
=======
2♣ = GF relay (see below)
2bids = natural, invitational
3♣ = natural, invitational
3♦♥♠ = natural, GF
=======
1♦ - 1♥
1NT - 2♣
=======
2♦ = min
2♥ = 5 spades or 3-suited
2♠ = max, 6+ diamonds, 4 spades
2NT = max, 5 diamonds, 4 spades
3♣ = max, 4144
3♦ = max, 4054, 0-3 controls
=======
1♦ - 1♥
2♣ - 2♦
=======
2♥ = 5+ diamonds, 4 clubs
2♠ = 5+ diamonds, 5+ clubs
2NT = 5 clubs, 4 diamonds
3♣ = 1444
3♦ = 0454, 0-3 controls
For me, minimum is ~10-13 and maximum is ~14-17. That should be just fine for 11-13 (min) and 14-16 (max). Obviously it is a lot more to remember (and get wrong) than a more natural scheme though.