g**********y
发帖数: 14569 | 1 Bergen raise:
After 1H/1S:
Original version --
3C: 7-9hcp, 4+ trumps
3D: 10-12hcp, 4+ trumps
3S/3H (other than opener's major): show void/singleton in a side suit
Nowadays --
3C: 10-12hcp, 4+ trumps
3D: 7-9hcp, 4+ trumps
Question 1: new version does save bidding space, but what's the use for that?
Suppose there is a bidding sequence --
1S - 3C - 3D - ...
What is 3D mean here? cuebid?
Question 2: why not use Splinter to show void/singleton?
Anyone can explain this?
Thanks! | w****b
发帖数: 623 | 2 Bergen raise is meant to improve your competitive bidding, i.e, bid to 3 level
with 9 card trump fit, it's not designed to improve your slam bidding
(although it helps in many case as it specifies the number of trump support
early on).
So the reverse version sticks more to the principle: weaker hands faster. And
it allows opener to cuebid at a lower level.
The idea of using a splinter without disclosing where the singleton is (opener
can query in subsequent bidding) is that in many cases, the op
【在 g**********y 的大作中提到】
: Bergen raise:
: After 1H/1S:
: Original version --
: 3C: 7-9hcp, 4+ trumps
: 3D: 10-12hcp, 4+ trumps
: 3S/3H (other than opener's major): show void/singleton in a side suit
: Nowadays --
: 3C: 10-12hcp, 4+ trumps
: 3D: 7-9hcp, 4+ trumps
: Question 1: new version does save bidding space, but what's the use for that?
| g**********y
发帖数: 14569 | 3 Thanks for explanation!
So if a squence like 1H - 3C - 3D happens, does that mean opener starts the
cuebidding (3D)?
And for void/singleton show, is there a point-range?
My logic is; In that system, strong card is shown by Jac2NT (13+); so this
void/singleton show is limited to 9-12 points, which in extreme case may help
opener to go slam, is that right?
level
And
(opener
the
【在 w****b 的大作中提到】
: Bergen raise is meant to improve your competitive bidding, i.e, bid to 3 level
: with 9 card trump fit, it's not designed to improve your slam bidding
: (although it helps in many case as it specifies the number of trump support
: early on).
: So the reverse version sticks more to the principle: weaker hands faster. And
: it allows opener to cuebid at a lower level.
: The idea of using a splinter without disclosing where the singleton is (opener
: can query in subsequent bidding) is that in many cases, the op
| w****b
发帖数: 623 | 4 Yes, 1S-3C-3D, a priori, 3D is a game try, and you can return 3S with nothing,
or cooperate with a cue like 3H, or go beyond. If after you return to 3S, and
opener bids further, either 4S, or another new suit, than the original 3D's a
cuebid showing slam interest. Say after 1S-3C-3D-3S-4C, 4C gives you another
chance for cuebid and shows a strong slam interest. Compare to 1S-3C-3D-3S-4S,
that sequence shows some moderate slam interest.
I think 3H/3S is just the same as splinter, other than it ad
【在 g**********y 的大作中提到】
: Thanks for explanation!
: So if a squence like 1H - 3C - 3D happens, does that mean opener starts the
: cuebidding (3D)?
: And for void/singleton show, is there a point-range?
: My logic is; In that system, strong card is shown by Jac2NT (13+); so this
: void/singleton show is limited to 9-12 points, which in extreme case may help
: opener to go slam, is that right?
:
: level
: And
| c****u
发帖数: 3277 | 5 bergen raise may backfire in many ways.
1
1S 3C: opps can double 3C as take out for free.
2, 1S p 2S, you've shown only 3 card support, so opps might not like to balance
it when it's marginal.
3, 1S 3S, opps are more likely to bid when he knows you have 9 card fit and
weak hand.
4, 1S 3D: opps can double 3D as lead directing for free.
5, when the hand is defensive oriented, 1S 3C may let you go down one
when 2S is just high enough and opps wouldn't bid or if they bid
they may go down
【在 g**********y 的大作中提到】
: Bergen raise:
: After 1H/1S:
: Original version --
: 3C: 7-9hcp, 4+ trumps
: 3D: 10-12hcp, 4+ trumps
: 3S/3H (other than opener's major): show void/singleton in a side suit
: Nowadays --
: 3C: 10-12hcp, 4+ trumps
: 3D: 7-9hcp, 4+ trumps
: Question 1: new version does save bidding space, but what's the use for that?
| w****b
发帖数: 623 | 6 Hehe post 2516 was an example when it backfired (similar to your 3).
balance
that?
【在 c****u 的大作中提到】
: bergen raise may backfire in many ways.
: 1
: 1S 3C: opps can double 3C as take out for free.
: 2, 1S p 2S, you've shown only 3 card support, so opps might not like to balance
: it when it's marginal.
: 3, 1S 3S, opps are more likely to bid when he knows you have 9 card fit and
: weak hand.
: 4, 1S 3D: opps can double 3D as lead directing for free.
: 5, when the hand is defensive oriented, 1S 3C may let you go down one
: when 2S is just high enough and opps wouldn't bid or if they bid
| g**********y
发帖数: 14569 | 7 That's interesting aspect which I didn't have chance to think of. As I never
played this convention before, I need to try it before giving it up.
My sense is: Bergen raise is like defense signal, it gives information to both
partner and opponents. It's a win-some, lose-some. Which side can make most
use of this info, that's depending on the hand and THE PLAYERS who is playing.
In average level, online bridge playing, I guess it brings more benefits than
harmness. However, based on an assumption,
【在 c****u 的大作中提到】
: bergen raise may backfire in many ways.
: 1
: 1S 3C: opps can double 3C as take out for free.
: 2, 1S p 2S, you've shown only 3 card support, so opps might not like to balance
: it when it's marginal.
: 3, 1S 3S, opps are more likely to bid when he knows you have 9 card fit and
: weak hand.
: 4, 1S 3D: opps can double 3D as lead directing for free.
: 5, when the hand is defensive oriented, 1S 3C may let you go down one
: when 2S is just high enough and opps wouldn't bid or if they bid
| w****b
发帖数: 623 | 8 On the other hand, some of these actions can backfire too.
1. Could be true. But doubling 3C, whether for takeout, lead directing, or
whatever, can help oppo detect 1st round controls cheaply.
2. After 1S-P-2S, if you may have 5-4 fit, oppo should be even more unlikely
to balance on marginal hands -- 1. you won't win, 2. you may push oppo to a
game which they cannot otherwise find. So statistically, it's hard to say
whether this is a plus or minus.
3. This one is definitely true, especially afte
【在 c****u 的大作中提到】
: bergen raise may backfire in many ways.
: 1
: 1S 3C: opps can double 3C as take out for free.
: 2, 1S p 2S, you've shown only 3 card support, so opps might not like to balance
: it when it's marginal.
: 3, 1S 3S, opps are more likely to bid when he knows you have 9 card fit and
: weak hand.
: 4, 1S 3D: opps can double 3D as lead directing for free.
: 5, when the hand is defensive oriented, 1S 3C may let you go down one
: when 2S is just high enough and opps wouldn't bid or if they bid
|
|
