[blml] Nondisclosure

Konrad Ciborowski cibor at poczta.fm
Sat Jun 2 09:19:26 CEST 2007


----- Original Message ----- 
From: "Nigel" <Guthrie at NTLworld.com>

> [nige1]
>
> Konrad's arguments are usually completely clear and persuasive but here,
> exceptionally, a couple of points would benefit from Konrad's further
> elucidation:
>
> [A] I am intrigued by generic defences to such artificial overcalls.
> Please would you explain yours Konrad?

For example our defense to a natural 1S overcall is:

1C (1S) ?

x = 0-5
pass = 6-8
1BA = 9+ BAL
2C = 9+, 5+D
2D = 9+, 5=H
2H = 9+, 5+C
2S = 9+, BAL
2NT = 6-8, 5+H-5+C/D
3X = 6-8 6+X
3S = 9+, three-suiter spade shortness

When 1S doesn't promise any suit we modify
our defense slightly:

1C (1S) ?

pass = 6-8
x = 0-5
1BA = 9+ BAL
2C = 9+, 5+D
2D = 9+, 5=H
2H = 9+, 5+S
2S = 9+, 5+C
2NT = 6-8, 5+S-5+H
3X = 6-8 6+X

We don't really care is 1S is Crash or random or whatever.
Because the scheme is very similar to when 1S is natural
then we don't really have to remember more.

We have a third variant when 1S promises another suit (eg
1S is a transfer to D). We feel this is enough.

When artificial systems were allowed I played the following
defense to all artificial systems (assuming the opening bid
was not strong like 2C ART GF):

(1X) - ?

x = 13+, 3+X BAL, or 16+ BAL 2+X
overcall = nat
1NT = Dynamic roughly 18+ UNBAL
2X = natural

We had one more defense against all strong
openings (similar to CRASH).



So all we needed to do before every round was to take a look
at the opp's CC and decide: we treat these openings as
artificial not strong, this one as artificial strong, and this
one as natural.

>
> [B] Wayne's opponents did *not* have their 1S overcall on their
> convention card and, anyway, the conditions of contest *mandated* timely
> pre-disclosure of systems.

I must have missed it for which I apologize. In that case of course they 
should not
be allowed to play it all. As much as I am all for systems freedom
I absolutely reaquire full disclosure - if you don't have it on your
CC you cannot play it. Period.

Konrad Ciborowski
Kraków, Poland 



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