I believe opener's second bid is forcing and triggers certain options.
1 minor 1 major
2 clubs
Thanks,
Bernard Schneider
The convention applies in the following auctions:
1M-1NT-2C
1H-1S-2C
1D-1M-2C
In all the above auctions opener's 2C rebid is forcing for 1-round and
shows either:
--12-16 HCP and a "normal" 2C rebid OR
--17+ HCP and any shape (consistent with the opening bid of course)
After opener's 2C rebid, responder either:
--makes a descriptive rebid OR
--bids 2D as a relay asking for further description.
After a 2D relay, opener either:
--shows a weak hand
--shows a strong hand and describes his shape
Gazzilli changes the definition of other rebids. For example:
1M-1NT-3X = approx 14-16 and 5-5 in two suits
1D-1M-3C = approx 14-16 and 5-5 or better in the minors
These sequences now deny 17+ HCP since those hands are funneled thru
2C instead.
The cost of the method is you can no longer play in 2C when both hands
are weak. The situation is actually a little worse than that, because
opener can not make a good shape description with 12-16 HCP and a 2-
suiter including clubs. For example consider this sequence:
1H-1N
2C-2D
2H-?
Opener has shown a minimum hand with 5+ hearts and 3+ clubs. Opener
could have rebiddable hearts or rebiddable clubs or responder might be
2-5-3-3. Responder does not know--he only knows opener is in the 12-16
bucket.
The benefit of the system is greatly improved game-bidding. You don't
have to use the same sequence (1H-1N-3C) to show all these hand types:
x, AKxxxx, AKx, AJx
x, AKxxx, AKx, AQxx
x, AKJTxx, x, KQJxx
x, AKxxx, Ax, AKxxx
Each hand type can get its own descriptive sequence.
Andrew
http://www.infobridge.it/Convenzioni_Gazzilli.htm
B.R.
Andrew's description here is fairly accurate, though I'm pretty sure
that almost every pair who plays Gazzilli has some slightly different
version that they learned or modified. The writeups I learned from are at:
http://www.bridgeguys.com/pdf/GazzilliND1.pdf
http://www.bridgeguys.com/pdf/GazzilliND2.pdf
http://www.bridgeguys.com/pdf/GazzilliND3.pdf
It's in a pretty dense format, and it took me a lot of studying to grasp
the basic struture. But it's more complete than what Andrew wrote, if
you're willing to try and understand the tables.
I also don't play Gazzili after minor-suit openers, although the third
link I provided does describe how to play it (after 1C and 1D, I seem to
recall). But after twice hearing Andrew say it's a good idea, I plan to
revisit it and see if it's a better idea than it looked last time.
--
Cheers,
Alan (San Jose, California, USA)
You are right of course--the full method is VERY dense, includes some
exceptions and in general requires much work to learn.
Trying to explain it concisely to a non-user forced me to (perhaps
over) simplify.
Andrew
Would you mind posting (or emailing or linking or whatever) a more
detailed description of your methods after 1D-1M? The writeup I
mentioned still doesn't seem worth playing, but if you have something
worthwhile I'd be interested in seeing it.
Read my blog: http://freebridge.blogspot.com/2009/08/gazzilli.html
Haven't played it in a while.
Nice!
Henrysun909