antonylee, on 2013-January-24, 15:01, said:
Classic Polish club:
P-1♣!
1♥-2♦! (natural; 18+ 3+♥, not two suited with only 3 hearts)
3♦-3♠ (natural canapé; natural)
4♠
Zelandakh, on 2013-January-25, 02:14, said:
I am no PC expert but I think North should clearly bid 3NT over 3♠. Can South not even be something like 5224 here? Over 3NT, South has a difficult decision.
Siegmund, on 2013-January-25, 09:54, said:
I realize that even when I played "classic" Polish I wasn't playing it quite the way it was in the books... but when I played it 1C-1H-2D (almost) set hearts as trump, and wasn't something I would have done with 6 spades and 3 hearts. I can't help thinking something more like 1C-1H-2S-3D-3H would be the start in Polish-without-fancy-asking-bids world. (And then what the heck does north do?)
This structure comes from Jassem's WJ05 (translated in English by David Neill, you can find it on internet); he proposes three variants for 2
♦ and the one I settled on is bubrotka (thinking about switching to odwyrtka right now). 2
♦ promises 3+
♥ (as a poster said once on r.g.b., bidding 2
♦ without 3-card support is a "serious bridge crime" :-)) so 5224 is excluded. I also have the agreement with my partner that 2
♦ can come from either a balanced (intending to bid NT or support), or a one-suited hand (intending to bid the suit or support) -- if two-suited, say 5314, you have to decide which suit to hide, because seemingly natural auctions such as 1
♣-1
♥; 1
♠-1N; 2
♣-... intending to give delayed support to partenr's first suit are canapé with 5+
♣4
♠ 15-17 (in this particular case) so you need to bid 2
♠ first and then 3
♣ later (or perhaps 3
♥). These auctions aren't that nice so I decided that showing a strong hand and bypassing 2
♦ basically gives up on finding a 3-5 fit.
For this particular auction opener's 3
♠ shows a 63xx (if 5314 he would probably make the practical bid of 3N at that point, and with 4-card support he would cheaply agree hearts) so responder can see that 4
♠ will usually have more play than 3N given the club weakness.
The full structure of bubrotka after 1
♣-1M-2
♦ is 2
♥=7-10 4M; 2
♠=11+ 4M; 2N=11+5M; 3m=9-11 4M5m; 3
♥=7-10 5M unbal (3
♠ and 3N ask); 3
♠=7-10 5332; 3N=6322; 4x=splinter with 6M.