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Magister in WJ2005 - or NMF


Tola18

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We played WJ2005.

 

N 1C W pass S 1H E pass, N 1NT (12-14NT) W D (unclear yet if TO or business) S 2C.

 

In undisturbed auction is this 2C the Magister/Pro, ie a sort of NMF. But is it still Magister here after the D??

I think it should be natural nonforcing, as S with a strong hand can always RD.

 

What do you say?

 

A) you conneiseurs of WJ2005

 

B ) you Standard American NMF-players

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  • 1 year later...

I will check some me too, but the name is apparently miss-spelled - it must be Izdebski. Wladyslaw Izdebski.

 

a wellknown polish theoretician and author (probably also a practician! :) )

 

 

It seems to be some sort of XYZ-convention. I myself dont care to sort out the variations. None of my steady partners do play this.

 

http://www.ktb.konin.lm.pl/wj13.htm - Izdebski is reasoning in Polish.

 

 

http://www.geocities.com/daniel_neill_2000/sys/WJXXI.txt Izdebski´s variation of WJ in English. Our double checkback / XYZ should be here somewhere.

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We play transfer checkback.

 

2♣ is a puppet to 2♦, which may be made with

a weak hand wishing to sign off in ♦

an invitational hand with a 5 card Major

an invitational hand with a 4 card Major and a 5+m

a GF balanced hand

 

Other bids apart from 2♣ are transfers.

 

 

These occur in the following sequences:

 

1♣ 1M

1N

 

1♣ 1♥

1♠

 

1♦ 1M

1NT

 

1♦ 1♥

1♠

 

 

Note that when opener rebids 1N his hand is limited to 12-15 points. Responder is in charge of the auction. Opener MUST rebid 2♦ after 2♣.

 

When opener rebids 1♠, (eg 1♣ 1♥ 1♠), he will usually have 12-15 points, however he MAY have more eg 16-17 with 5+C and 4♠, or a balanced 17-23 possibly including a 5 card S suit. In these cases he cannot rebid 2♦ after the 2♣ puppet as there is too great a danger that responder will pass. He must make some other bid – see below.

 

 

Sequences

 

1♣ 1♠

1NT 2♣

2♦ P Weak with 4♠ and long D

2♥ Invit with 5♠/4♥

2♠ Invit with 5♠

2N Slam ambitions, flat 4333 or 4432 with any other 4 card suit

3♣ GF natural fragment 5143 shape exactly

 

1♣ 1♠

1NT 2♣

2♦ 2N

3♣ Relay asking for other 4 card suit

Now 3♦ = ♦, 3♥ = ♥, 3♠ = ♣

Now

Raises of the minor to the 4 level are minorwood

3N is a sign off, 4N is quantitative

4♣ is RKCB in ♥ NB Opener CANNOT HAVE 4♠

 

 

1♣ 1♠

1NT 2♦ Transfer to ♥. Weak or GF

2♥ Transfer to ♠, weak or I suited GF

2♠ Invit to 3N OR sign off in ♣, (as over 1N opening). Or GF with

5M & 5♣ – see below

2N GF transfer to ♣

3♣/♦/♥ Natural invitational, 5/5

 

3

1♣ 1♠

1NT 2♦ Transfer to H. Weak or GF

2♥ Opener accepts t/f, therefore must have 4♥

Now 3♥ = GF, inviting cues, others are natural fragments

2♠ Opener has <4 ♥, but at least 2♠

Now 2N = GF NT oriented hand

3♣/♦ are GF natural fragments

3♥ = 5/5 GF

3♠ = 6 very good ♠ GF

 

 

1♣ 1♠

1NT 2♠ Inv in NT, or weak with ♣, or GF with 5M & 5♣

2N Min

3♣ Max

 

1♣ 1♠

1NT 2♠

2N 3♣ Weak with ♣

3♦/♥ GF with 5M and singleton in this suit

3♠ 6M and 5♣

 

 

 

 

 

General Rules In All Sequences:

 

• 2♠ is equivalent to 2♠ over 1NT opening – invitational to 3N or sign off in ♣

• To transfer and then bid again is a game force, with the exception of invitational hands which go via 2♣

• 2♦/♥/NT are transfers and could be weak OR GF. GF shows the fragment on the next round

• level new suit is natural invitational 5/5

• 2♣ is either a puppet to 2♦, (weak or GF, both natural), or any unbalanced invitational hand

 

This is effectively what I published in Australian Bridge. It is Izdebski btw.

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I play wj05 with a few people. And I have no idea what the meaning of 2 would be after the double in any of them. I guess this sequence hasn't come up. Nobody round these parts pass 1 but then dbl 1NT.
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Sequences

 

1♣  1♠

1NT  2♣

2♦  P  Weak with 4♠ and long D

  2♥  Invit with 5♠/4♥

  2♠  Invit with 5♠

  2N  Slam ambitions, flat 4333 or 4432 with any other 4 card suit

  3♣  GF natural fragment 5143 shape exactly

How do you show GF 4153? Or, do you respond 2 instead of 1 with this hand?

 

What about 4x5x invitational? 5x5x GF?

 

Do you have agreements about the follow-ups to 1-1; 1N-2; 2?

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