TWalsh structure

[Syl20]

Hi,

I am considering playing a TWalsh structure.

Since one of its aim, in addition to discretion, is to right side the contract, I thought of this scheme over 1♣ (12-14 or 18-19 balanced or 12+ with ♣s):

 

1♦/♥=4♥/♠, 6+

1♠=a-) transfer NT with 6+ or b-) 11+, 5♦ (may be a 4 card major)

1NT= 6-10, 4♥+4♠

2♣=Inverted minor raise without 4 card major

2♦=6-10, 5♥+4♠

2♥/♠=5-9, 6♥/♠

2NT=11-12, invitationnal

 

Maybe this scheme concerning the 1♠ bid already exists, anyway I didn't find it elsewhere.

The advantage is that when responder is weak without major, the opener will always play 1NT. And when he's intermediate or better, he can choose between a direct 2NT bid or transfer via 1♠ if he wishes to receive the lead or not.

Although, 1♠ can be irregular with ♦s. In that case, he will simply bid on his suit over opener's last bid.

The only drawback I see could be the 1NT bid when opener is balanced whithout 4 card major, wrong-siding the contract.

 

I would be happy to know what you think of that and to point out what other drawback i (must) have missed...

[blahonga]

An older version of Björn Fallenius's and Roy Welland's system includes something similar:

http://www.syskon.nu/system/002_fallenius_welland_2-1.pdf