[mayoutu]

This problem is from this month's Bridgeworld.com Master Solvers' Club. IMP non vul.

♠AKQ87
♥6
♦KJ86
♣Q92

After 1♠-P-2♠-P, what do you bid? (See problem E)

https://www.bridgewo...rlastmonth.html

According to panel votes, 3♣ gets 100 points, while 2NT gets 0 point. I don't know why short suit invitation is wrong here, because textbook says it is used for unbalanced hands while long suit invitation is used for balanced hands.

Another question: I have participated in MSC for many years, are they really following the BWS?

Thanks!

[smerriman]

As far as I can see BWS doesn't use short suit game tries.

Quote

After a single raise:
(a) a reraise to three is preemptive;
(b) two notrump is forcing with at least game-invitational strength;
© a simple new-suit bid is a game-try showing length (or a suit where honor strength would be helpful).

[johnu]

mayoutu, on 2020-May-10, 23:54, said:

Another question: I have participated in MSC for many years, are they really following the BWS?

In theory, panelists are supposed to use BWS when relevant. In practice, a lot of panelists don't know the applicable BWS agreements.

[mayoutu]

Oh, I didn't notice that. Thanks! I personally feel that short suit invitation is a good choice, because for an unbalanced hand like 5-4-3-1, telling partner the suit with 1 card includes more information than suit with 4 or 3 cards. If partner has no waste value in that suit, likely it doesn't matter how the value is distributed in the other suits.

smerriman, on 2020-May-11, 00:07, said:

As far as I can see BWS doesn't use short suit game tries.

[mayoutu]

I guess so. For problem H, BWS says "opening lead against no trump: (ii) Spot-card leads: fourth-highest; second-highest (but highest of equals) from a weak suit." I chose club to lead, and it should be ♣6 according to BWS. But Panel votes ♣9.

johnu, on 2020-May-11, 01:35, said:

In theory, panelists are supposed to use BWS when relevant. In practice, a lot of panelists don't know the applicable BWS agreements.