[easy]

Hi all

I was at a local bridge party last weekend where i heard a discussion re: XYZ convention.... From what i understood the convention is similar to 2way check back. for example

1d 1h
1s 2c = relay to clubs
2d = artificial and game forcing.


I'd like to know more about this convention. Also how does this convention mesh with fourth suit forcing. A reference to material on the web would be helpful.

Thx

Easy

[mikestar]

XYZ is so called because it applies in all auctions that satrt 1X-1Y-1Z. It is an extension of 2 way checkback differing in that 1Z need not be 1NT.

XYZ relpaces fourth suit forcing in 1 level sequences.

2C requires opnener to bid 2D. Responer wishes to sign off in diamonds or will show a game invitation. Opener can make a different bid if he would not have passed a natural 2D signoff.

2D is an artificial game force.


Lets' take 1D-1H-1S as an example:

After 1D-1H-1S-2C-2D, responder bids:

Pass= to play.
2H = invitational, 5+ hearts
2S = invitational, 4 spades
2N = invitational, club stopper, tends to be off-shape.
3C = invitational, real club suit.
3D = invitational, 4+ diamonds

Repsponder's rebids other than 2C/2D:

2H=weak signoff, maybe only 5 hearts.
2S=weak signoff, 4 spades (sometimes 3)
2N=invitational, balanced with with club stopper.
3C= club signoff (weak 4-6)
3D = GF, excellent diamond support
3H = GF, excellent 6+ hearts
3S = GF, 4 good spades
3N = to play.

Direct game forces thend to have very good suits but minimum values. Strong GF hands or hands where the partnership needs to find a fit go thru 2D.

Some advanced players prefer conventioal meanings for the GF bids and show all natural GF hand by bidding 2D first.

[luke warm]

mike's 3 bids are the way i like to play, but i know some who play 1x/1y/1z/3c as a game force also

[easy]

mike

Thanks for the information. This convention sounds as if it is most useful when playing secondary jumps are forcing to game. Is that correct?

fred

(easy)

[pclayton]

Aside from being GF, they tend to show real good suits (else just bid 2♦). I can't think of another use for a secondary jump frankly in an xyz context (even 3♣).

[arrows]

Quote

This convention sounds as if it is most useful when playing secondary jumps are forcing to game. Is that correct?

Should be the other way around:

This convention is most useful BECAUSE you can play secondary jump for
game forcing and have many other "free" sequences at your disposal too.

For example, with 2♣ starting an invitation sequence, you
may reckon that you don't really need 2NT to be natural, let's say
you may play 2NT as transfer to 3♣ and thus generate many
useful sequences thereafter.....

[xx1943]

easy, on Dec 21 2004, 02:43 PM, said:

A reference to material on the web would be helpful.

Hi try this URL: Granovetters explanation of XYZ

Or type in GOOGLE "XYZ" "BRIDGE" "CONVENTION"

Regards Al