[blml] Red systems

Alain Gottcheiner agot at ulb.ac.be
Tue Sep 26 11:09:29 CEST 2006


At 10:57 26/09/2006 +0200, Sven Pran wrote:
> > On Behalf Of Laszlo Hegedus
> > Can anyone tell me the category (red or blue) of the following systems?
> > In general I'm interested the precise definition of red systems.
>
> > System A
> > More or less strong club system (1C: 17+), but
> > 1H: 11-20p 5+H or 17-20p 1444.
> > Other opening bids and anwsers are similar to a normal strong club 5cM
> > system.

Depends on whtehter "1444" means "any 3-suiter". Then it would be 
classified yellow.
However, you only need to state "1444 with 4 hearts" to make it a blue system.

>
> > System B
> > More or less a normal strong club system (1C:16+), but
> > 1D: 11-15p 5+H
> > 1H: 11-15p 5+S
> > 1S: 11-15p similar to a normal strong club systems 1D opening bid: 1+D,
> > (the 2D opening means something else)
> > anwsers: 1D-2C: stayman.
> > No more extras.

Obviously red. It could be argued that it is yellow, because "1S shows 
either clubs or diamonds or NT", which is in principle disallowed, but a 
"residual opening", i.e. "anything that isn't shown by another 1-level 
opening" is tolerated.
The fact that such a 1S opening seems unplayable is a horse of another color.

>
> > System C
> > More or less an abnormal strong club system :) (1C:16+ --- frequently
> > depends on valuation of the cards) but
> > 1D: 11-15p, diamond or club suit or balanced hand including 5332 with
> > Major.
> > 2C: 11-15p, any 4441
> > anwsers: 1D-1H strong relay; 1D-1S weaker relay, etc relay anwsers to
> > other opening bids as well.

Non-strong relays and the 2C opening make this red.
2C makes, however, could be considered "a brown sticker convention" with 
such a lower limit. To be checked.


Best regards,

    Alain




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