Transfer Rebids By Opener After (Semi) Forcing NT Response to 1 Major
Simon
1H/S p 1NT start and from a quick glance at the convention cards of
some of the pairs who've played in recent Camrose series (annual
contest between international teams representing England, Scotland,
Wales and the two Irelands) it seems that such methods are in vogue.
I'd be grateful for any details/ links regarding viable schemes and
thoughts as to the merits/demerits of these methods.
One specific question which occurs at this stage is if playing
transfer rebids, what does opener do when holding a 5 card major, a
side 4 card club suit and minimal values?
Thanks.
Simon
sawdust
Obvious. A long hesitation, then 2C. Or plan never to hold
that hand type. ;-)
John
henry...@yahoo.com
I suppose you could do it like this:
1h 1nt ?
2c = diamonds
2d = hearts
2h = hearts and clubs
2s = strong, natural
2nt = strong, natural
etc
1s 1nt ?
2c = diamonds
2d = hearts
2h = spades
2s = spades and clubs
2nt = natural, strong,
etc
You may have a problem with wide-ranging 2M rebids, and unless your
partnership allows opener to pass with a 5M332 minimum (in which case
I would suggest using 14-16 as your 1nt range), you will also have a
problem with opener is exactly 3=5=2=3 (what will you rebid then?).
If I were going to play transfers, I'd rather play Gazzilli:
1M 1nt ?
2c = strong, artificial OR natural with clubs
2d = natural, limited by the failure to rebid 2c
2h = natural, limited by the failure to rebid 2c
2s = natural, limited by the failure to rebid 2c OR a natural strong
reverse
2nt = natural
3m = GF hand that is 5=5 (GF 5431 or 5422 hands go through 2c)
Henrysun909
KWSchneider
wrote:
> On Nov 5, 7:33 am, Simon <simonmos...@yahoo.co.uk> wrote:
>
>
>
>
>
> > I am thinking of incorporating transfer rebids into my system after a
> > 1H/S p 1NT start and from a quick glance at the convention cards of
> > some of the pairs who've played in recent Camrose series (annual
> > contest between international teams representing England, Scotland,
> > Wales and the two Irelands) it seems that such methods are in vogue.
>
> > I'd be grateful for any details/ links regarding viable schemes and
> > thoughts as to the merits/demerits of these methods.
>
> > One specific question which occurs at this stage is if playing
> > transfer rebids, what does opener do when holding a 5 card major, a
> > side 4 card club suit and minimal values?
>
> > Thanks.
>
> > Simon
>
> I suppose you could do it like this:
>
> 1h 1nt ?
>
> 2c = diamonds
> 2d = hearts
> 2h = hearts and clubs
> 2s = strong, natural
> 2nt = strong, natural
> etc
As an idea, you could play that 2S is a self-splinter showing a good
6331 and unknown shortness. I can't see a tremendous demand for a
natural 2S bid after responder has denied 4+s. The only reason for
bidding on after 1N is you have game/slam aspirations or significant
shape. This would differentiate the 2D bid by allowing it to be
"flattish" 6322 or a weak 6331.
Cheers,
Kurt
>
> 1s 1nt ?
> 2c = diamonds
> 2d = hearts
> 2h = spades
> 2s = spades and clubs
> 2nt = natural, strong,
>
> etc
>
> You may have a problem with wide-ranging 2M rebids, and unless your
> partnership allows opener to pass with a 5M332 minimum (in which case
> I would suggest using 14-16 as your 1nt range), you will also have a
> problem with opener is exactly 3=5=2=3 (what will you rebid then?).
>
> If I were going to play transfers, I'd rather play Gazzilli:
>
> 1M 1nt ?
> 2c = strong, artificial OR natural with clubs
> 2d = natural, limited by the failure to rebid 2c
> 2h = natural, limited by the failure to rebid 2c
> 2s = natural, limited by the failure to rebid 2c OR a natural strong
> reverse
> 2nt = natural
> 3m = GF hand that is 5=5 (GF 5431 or 5422 hands go through 2c)
>
> Henrysun909- Hide quoted text -
>
> - Show quoted text -
henry...@yahoo.com
>
> - Show quoted text -- Hide quoted text -
>
> - Show quoted text -
That would be another alternative.
Still, I like having a natural rebid when opener is, e.g.
AKxx
AQJxx
x
Kxx
instead of a forced 2c rebid.
Still, the bidding sequence 1h 1nt 2s is perhaps the worst reverse
sequence since opener does not know what suit, if any, responder has,
nor whether he has enough strength to force to game. Since responder
is just now, on the second round, showing his suit, most of those bids
have to be strength ambiguous. I don't think that there is a way of
handling all of these hand types after 1h 1nt 2s:
weak misfitting hand: xx x KJxxx QTxxx
good misfitting hand: Ax x KJxxx QTxxx
weak one-suiter: Kxx x QTxxxx Jxx
GF one suiter: Axx x KJTxxx Qxx
Weak semi-fitting hand: xx xx KJxx QTxxx
GF semi-misfitting hand: Ax xx KJxx QTxxx
while being able to investigate all possible strains and levels.
Henrysun909
LowerLine
What problem are you trying to solve? I can only see a useful
application when combined with the Kaplan Inversion after a 1H
opening. The 1S answer to the 1H opening is then the "forcing 1NT",
but can still have 4 spades (not 5). The 1NT anwer would show 5
spades.
After 1H-1S:
1NT = diamonds or a strong (17+) hand (can still end in 2D/H if both
hands are weak)
2C = natural NF
2D = hearts
2H = 4S, but too weak for a reverse, NF
2S = natural reverse
Steven
KWSchneider
Not sure where the original poster is from, but the ACBL has banned
the "Kaplan Inversion" as described above...
Kurt
Rob Morris
> the "Kaplan Inversion" as described above...
What do you mean? I thought KI was in general a 'mid-chart' convention,
meaning it's only allowed in fairly high-level competition. (Over here,
it's perfectly allowable in novice and holiday bridge, though not many
people play it). Do you mean those transfer-follow-ups?
--
Rob Morris
arr emm four four five (at) cam dot ac dot uk
Frances
Unfortunately (fortunately?) you can't just look at this by itself,
you have to do it in the context of the rest of your system. For
example, are you playing 5-card majors? Do you like to open 1NT with
a 5-card major, and if so, what NT range are you playing? What is
your two-bid structure? Is your 1NT response to 1M non-forcing (Acol-
style), semi-forcing, or totally forcing? (This determines what hand
types responder can have)
It's also true that while an artificial 2C rebid by opener is very
popular, there are many more schemes than just 'transfers'. The main
merit of playing something other than just 'natural' is that playing
2/1, both opener and responder have a very wide range of hand types
and strengthes, and sorting them out can be a nightmare without
putting in some artificiality.
The demerit of course is that it's more to discuss, and more to learn.
Some of the alternatives to 2-level transfers are Gazilli (google it),
and various artificial 2C rebids combined with assorted relay methods/
later transfers (I play a version of this, but there are lots of
competing methods around)
The transfer style of rebid is particularly popular when combined with
a multi and 'constructive' 2-bids i.e. a 2H/2S opening is about 9-13
with a 6-card suit. This takes out the need to handle the minimum 2M
rebid after 1M - 1NT.
If you play these two-bids, then one possible - simple - set of
opener's rebids after 1S - 1NT are:
2C = either diamonds or balanced
2D = hearts
2H = constructive (or better) with 6 spades
2S = spades and clubs, non-forcing
...now it depends how clever you want to get on the higher bids, the
simplest approach is
2NT = clubs, game forcing
3C = 5-5 spades & clubs, game forcing
3D = 5-5 spades and diamonds, game forcing
3H = 5-5 majors, game forcing
3S = game forcing single-suiter
3NT = to play, based on 6/7 good spades
You now have to develop all the continuations after 1S - 1NT - 2C...
FWIW I don't play these intermediate type 2-bids, but do play semi-
forcing NT and play something slightly different:
1S - 1NT -
Pass = 11-12 balanced
2C = clubs, or 12-17 balanced, or constructive (about 14-17) with 6
spades
2D = natural NF
2H = natural NF
2S = natural minimum
2NT = 18-19 balanced
3C = FG with diamonds
3D = FG with hearts
3H = 5-5 majors invitational
3S = FG single-suited
3NT = to play based on long spades
1S - 1NT - 2C -
2D = either very weak or club support
2H = constructive with 5+ hearts
2S = about a good 7 to a poor 10 with doubleton spade
2NT = natural invitational
3C = about 9-12 with a good 6-card suit
3D = about 9-12 with a good 6-card suit
3H = about 6-8 with 7 or 8 hearts (we play 1S - 3H as natural
invitational)
3S = limit raise with 3 spades
1S - 1NT - 2C - 2D -
2H = balanced or 6+ spades (non-forcing) - responder now bids 2S
(weak), or 2NT/3S showing a raise with club support, or 3C/3D natural
and weak
2S+ = spades and clubs.
The advantage of this method is that it
(i) sorts out responder's range
(ii) allows opener to show a good hand without getting too high
opposite a very weak hand
(iii) allows opener to show a game forcing hand with his own major
The disadvantage is that you can't play in 2C.
The other disadvantage is that it gets quite complex, and in fact it
gets rather more complex after 1H - 1NT because you have responder's
2S available as artificial as well.
David Stevenson
>If you play these two-bids, then one possible - simple - set of
>opener's rebids after 1S - 1NT are:
>2C = either diamonds or balanced
>2D = hearts
>2H = constructive (or better) with 6 spades
>2S = spades and clubs, non-forcing
>...now it depends how clever you want to get on the higher bids, the
>simplest approach is
>2NT = clubs, game forcing
>3C = 5-5 spades & clubs, game forcing
>3D = 5-5 spades and diamonds, game forcing
>3H = 5-5 majors, game forcing
>3S = game forcing single-suiter
>3NT = to play, based on 6/7 good spades
>
>You now have to develop all the continuations after 1S - 1NT - 2C...
I would like ot try something simple. But the above scheme seems to
ignore a minimum one-suiter in spades.
--
David Stevenson Bridge RTFLB Cats Railways
Liverpool, England, UK Fax: +44 870 055 7697 ICQ: 20039682
<webj...@googlemail.com> bluejak on OKB
Bridgepage: http://blakjak.org/brg_menu.htm
Frances
> Bridgepage:http://blakjak.org/brg_menu.htm- Hide quoted text -
>
> - Show quoted text -
Yes. You have carefully snipped the bit where I said
"The transfer style of rebid is particularly popular when combined
with
a multi and 'constructive' 2-bids i.e. a 2H/2S opening is about 9-13
with a 6-card suit. This takes out the need to handle the minimum 2M
rebid after 1M - 1NT. "
Of course one can play that a 2H rebid = 6+ spades any strength, but
then you lose one advantage which is being able to show a non-minimum
2S rebid and still stay at the 2-level.
David Stevenson
>Yes. You have carefully snipped the bit where I said
Carefully? There was no care involved.
--
David Stevenson Bridge RTFLB Cats Railways
Liverpool, England, UK Fax: +44 870 055 7697 ICQ: 20039682
<webj...@googlemail.com> bluejak on OKB
Bridgepage: http://blakjak.org/brg_menu.htm