Corral_2, on 2015-October-08, 20:19, said:
ALL VUL
E/W play NT 15-17, and also play puppet over 1 & 2 NT, so often open NT with 5 card major, and play Bergen raises by passed hand and over overcalls so 3 clubs was not an option. Result 4S-2. Was 2s wrong? Should pd expect 3 card support? Was 4S called for?
(1) If you have agreed to play 15 - 17 1NT with 5-card majors and have puppet available, you should open 1NT with the East hand - or change your system.
(2) 2
♥ with the South hand is dangerous, as shown below in (4).
(3) Bergen makes good use of the otherwise almost useless jumps to 3
♣ and 3
♦ in the uncontested auction. After overcalls, these bids may not be jumps any more and needed for more urgent uses, as we can see here. Further, Bergen is not really necessary after an overcall because you can jump-raise partner's suit for pre-emption and overcall overcaller's suit with an invitational hand. Even if you play Bergen with a passed hand and after a double, you'd better not after an overcall.
(4) Yes, 2
♠ promises 3 cards in
♠. And while it is sometimes necessary to invent a bid, in this case I'd prefer to "invent a pass" and give opener another chance to do his job. Taking the first round of bidding as is, as well as Bergen, I believe it should be continued like this:
p - p - 1
♠ - 2
♥
p - p - X* - p
p** - p
* take-out, showing points;
** with points; some length and values in opponents' suit.
2
♥X should give you a shared top when down 3 (or more). If down only 1 or 2, you can still expect a good score only behind those who both bid and make 3NT.
(5) With Bergen off, the bidding might go
p - p - 1
♠ - 2
♥
3
♣ - p - 3
♥ - p
3NT - p - p - p
which is down 1, theoretically, after
♥ lead and perfect defense. Worth trying anyway.
(6)Interestingly, the situation is similar after a 1NT opener. Some may reach 3NT as EW, some not, and sometimes S may decide to intervene with 2
♥ Cappelletti or Landy, which W should double for penalty.