Question about xyz convention... What are these?
#1
Posted 2013-November-30, 12:42
1♣-1♦
1♥-1♠?
If we bid the minor 1st only when having 10+ pts and 5/4, does this simply show shape and natural with 10+?
If we bid the minor 1st either way, is this then an invite asking for spade control with 2♣ showing a spade control?
Junior - Always looking for new partners to improve my play with..I have my fair share of brilliancy and blunders.
"Did your mother really marry a Mr Head and name her son Richard?" - jillybean
#2
Posted 2013-November-30, 15:08
With less you start with 1s.
#3
Posted 2013-November-30, 17:12
mike777, on 2013-November-30, 15:08, said:
With less you start with 1s.
This is a valid question
Whether you play Walsh or not, if you play xyz, I think game forcing hands should be bid via 2♦. Opener can now easily show a four card spade suit via 2♠.
Likewise invitational hands are bid via 2♣.
It follows that 1♠ should be something different, for example if playing Walsh that spades are dubious and 1NT should be declared by opener.
Rainer Herrmann
#4
Posted 2013-November-30, 18:37
Keep in mind opener promises 5c and 4h....one diamond shows long d and denies 4s if less than gf. Now add to that responder denies an inv type hand and the opp are silent. Now you want to add the responder has weak spades. At this point we are discussing a very narrow range of hands.
#5
Posted 2013-November-30, 22:10
1♣-1♦-1NT shows a balanced 12-16 HCP. Now responder with invitational values bids 2♣ Checkback Stayman. With game values responder bids 2♦, also Checkback Stayman, but game forcing. With less than invitational values, responder probably passes.
I'm not sure how well XYZ fits into this structure. I'll have to think about it.
As for tv, screw it. You aren't missing anything. -- Ken Berg
I have come to realise it is futile to expect or hope a regular club game will be run in accordance with the laws. -- Jillybean
#6
Posted 2013-November-30, 23:36
#7
Posted 2013-November-30, 23:56
lycier, on 2013-November-30, 23:36, said:
I bet you did not say walsh and xyz.......words are important and yet confusing
that is why we have philosophy to overcome
#8
Posted 2013-December-01, 00:00
lycier, on 2013-November-30, 23:36, said:
I bet you did not say walsh and xyz.......words are important and yet confusing.
#10
Posted 2013-December-01, 05:28
mike777, on 2013-November-30, 23:56, said:
that is why we have philosophy to overcome
I ask Steve Robinson :
I play XYZ and Walsh
1- what's the meanings of 1♠?
2- what's the meanings of 2♠?
lycier, on 2013-November-30, 23:36, said:
#11
Posted 2013-December-01, 05:35
#12
Posted 2013-December-01, 05:49
lycier, on 2013-November-14, 02:25, said:
这副牌是值得参考的。
我觉得如果我再叫2nt,那机器人很可能pass。那么为什么机器人再叫2D逼局而不自己直接3nt?而北家的牌还需要什么进一步描述的?原因恐怕还是探查落脚点。
1- This hand is worthy of reference,why Robot bid 1♠ first? why not bid 3nt directly?
2- Larry Cohn had ever said that If using XYZ, it does not matter what the first 3 bids were, as long as they are all on the 1-level. The auction could even begin 1♣-1♦-1♥. (In that case, 1♠would be natural and 2♦ would be the artificial GF.
3-
lycier, on 2013-November-05, 05:01, said:
Supose 2S is 4th :
Now you get the best spot.
how to do next?
If you can't agree to these sequences,you can have a try to use XYZ.
I think all pass after 3♦ was reasonable.
the problems are:
1- protected card
2- who is best delarer?
3- how to look for the best contrct with adequate room?
For me, I would like to define 1♠ as 4th so as to look for best contract with adequate room,but 2♠ as 4 card with game force.
#14
Posted 2013-December-02, 13:12
If Walsh does not apply, and we can ignore many of the above replies, then with the agreed XYZ to cover invitational and game forcing hands, I do not see the need for 4th suit forcing. I would play 1♠ here as natural and weak, up to 10hcp, for partner to pass or bid - possibly 1NT. This is perhaps the answer to the 2nd question : "no". Certainly 2♣ does not show spades, although you can show spades on the next bid.
If the "minor first" shows 10+ points, and 2♣ shows 11/12, then it seems to restrict the 1♠ to exactly 10. I would say a very odd combination of agreements.