[finesse157]

Playing 5CM, a hand style that comes up fairly frequently is one where you have 3 card support for responder,
e.g.
(1) QJx, xx, KQxxx, AJx
(2) QJx, x, KQxxx, AJxx
(3) QJxx, x, KQxxx, AJx

If the uninterrupted bidding goes 1D, 1S..
For hand 1, it's a easy 1N
For hand 2, SAYC is a rebid of 2D
For hand 3, SAYC is a rebid of 2S (or 3S if that is your style)

For hand types 2, is it acceptable to bid 2S. You have support and good ruffing values, and you may cut out the opps 2H bids.
If P as a balanced hand, they can bid NT, and you can repeat the spade with hand 3 or stay in 3N with the 4/3 fit.

FWIW, I ran a few simple simulations, and where the points are split evenly, responding with a 3 card suit is a small IMP gain (and large MP gain).

[ali quarg]

finesse157, on 2021-March-30, 04:47, said:

Playing 5CM, a hand style that comes up fairly frequently is one where you have 3 card support for responder,
e.g.
(1) QJx, xx, KQxxx, AJx
(2) QJx, x, KQxxx, AJxx
(3) QJxx, x, KQxxx, AJx

If the uninterrupted bidding goes 1D, 1S..
For hand 1, it's a easy 1N
For hand 2, SAYC is a rebid of 2D
For hand 3, SAYC is a rebid of 2S (or 3S if that is your style)

For hand types 2, is it acceptable to bid 2S. You have support and good ruffing values, and you may cut out the opps 2H bids.
If P as a balanced hand, they can bid NT, and you can repeat the spade with hand 3 or stay in 3N with the 4/3 fit.

FWIW, I ran a few simple simulations, and where the points are split evenly, responding with a 3 card suit is a small IMP gain (and large MP gain).

I thought standard was 1M-2M showing 8-9(6-9). All these hands are stronger than that for me. My style is more direct
1) 1M-3D Limit+ 3C support
2) As above
3) Jacoby 2NT-I play Limit+

[awm]

The second hand should never rebid diamonds; if you refuse to raise spades on three your rebid is 2C.

Most US experts will bid 2S on hand two (three card support and a side singleton is a raise) and some will even bid 2S on hand one (two small in a side suit) although this is more controversial. Of course in France or Poland they never raise without four so it does depend on who you ask!

[finesse157]

This is not for the immediate response. This is for openers rebid

ali quarg, on 2021-March-30, 05:09, said:

I thought standard was 1M-2M showing 8-9(6-9). All these hands are stronger than that for me. My style is more direct
1) 1M-3D Limit+ 3C support
2) As above
3) Jacoby 2NT-I play Limit+

[ali quarg]

finesse157, on 2021-March-30, 06:07, said:

This is not for the immediate response. This is for openers rebid

Yep totally misread the post-too much sun this morning with the exceptionally fine weather in the UK!

[pigpenz]

awm, on 2021-March-30, 05:57, said:

The second hand should never rebid diamonds; if you refuse to raise spades on three your rebid is 2C.

Most US experts will bid 2S on hand two (three card support and a side singleton is a raise) and some will even bid 2S on hand one (two small in a side suit) although this is more controversial. Of course in France or Poland they never raise without four so it does depend on who you ask!

yes there are advantages to raising to 2♠ on all 3 hands

ran a quick sim on hand 1

1NT 47%
2♠ 66%

this is with the spade hand having 5-9points and 4-6 cards.
if we lower to 4 spades and 6-8 points both contracts go down to 22%
but the take away from the hand is that the opps most likely have an 8 card heart fit
so probably its really a comparison of opps ♥contract vs our ♠contract

[pilowsky]

The "sim" is helpful - which system did you use?


I often find myself as a responder in pick-up games with a hand with reasonable values in an auction where partner opens 1(minor) and I respond 1(major) with a 4-card suit.
If Opener directly raises my major, I understood that to mean that they must have 4+ in that major or bid 1NT leaving open the opportunity for a checkback/NMF bid.


You seem to be suggesting something a little different. Could you explain further, please?

[mikestar13]

I had read the title1X-1M Responding with 3CM as asking about responding 1M on a three card suit, which I've never done nor will, but was rather about 1X-1M-2M with 3-card support, which I almost always do with a stiff and will consider with xx in a side suit.

[barmar]

A common recommendation is to make a 3-card raise if your side doubleton doesn't contain any honors, otherwise rebid 1NT.

[Zelandakh]

On hands like the second one, the general rule I learned (and sometimes teach) is to raise if your hand is only worth 2 bids but bid the second suit followed by a delayed raise if the hand is good enough for a third bid.