[blml] Red systems
Laszlo Hegedus
hegelaci at cs.elte.hu
Tue Oct 3 16:10:17 CEST 2006
Sven Pran wrote:
>>On Behalf Of Laszlo Hegedus
>>
>>
>,,,,,,,,,,,,,,,,,,
>
>
>>>>>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.
>>
>>
>>>
>>>
>>I wrote, that 1S open is similar to a normal (NOT AN ABNORMAL like
>>system C) strong clubs system's 1D opening bid; with club suit the
>>opening bid is 2C of course (1S: diamond suit or 11-14 balanced or 11-15
>>4414)
>>
>>
>
>HUM:
>.......
>An opening bid at the one level can alternatively show short or long suit.
>.........
>
>The above information, part of your description of your system B, says (if I
>correctly understand what you mean) that the 1S opening bid shows either
>single Diamond (with 4414), a Diamond suit (at least 3 or 4?) or balanced.
>Also the length of your named suit Spades can according to this be either 2
>(short) or 4 (long).
>
>
I'm not sure, you understand it quite well. This 1S promises diamond
suit, but only 1+.
If you play a 5card Major strong club system and your 2 clubs promises
minimum 5 clubs (6 without a 4card Major) as usual and your 1NT is not
as wide as the whole limited range (11-15 or 11-16), and 2 diamonds are
some weak/preemtive bid, then if your distribution is 3325 or (4432)
with dubleton diamonds or 4414 you can open with pass or 1D only.
Anyway as bridge player i do not like this method, (when I play strong
club system i like to open 2D with 4414), but this is a worldwide known
and used method, not a HUM system.
In system B the definition of 1D, 1H, and 1S are changed (permuted).
On the world bridge.org the following is written in the WBF system policy
*2.2 HUM Systems*
For the purpose of this Policy, a Highly Unusual Method (HUM) means any
System that exhibits one or more of the following features, as a matter
of partnership agreement:
1. A Pass in the opening position shows at least the values generally
accepted for an opening bid of one, even if there are alternative
weak possibilities
2. By partnership agreement an opening bid at the one level may be
weaker than pass.
3. By partnership agreement an opening bid at the one level may be
made with values a king or more below average strength.
4. By partnership agreement an opening bid at the one level shows
either length or shortage in a specified suit
5. By partnership agreement an opening bid at the one level shows
either length in one specified suit or length in another.
*EXCEPTION*: one of a minor in a strong club or strong diamond system
It seems to me, that the 'exception' applies to the 5th point only. And
the world wide used method when 1D promises 1+ length in the suit is not
HUM, so system B isnt that as well. Maybe I know it badly.
regards
Laci
>I overlooked this when I prepared my first comment; the above information
>makes (IMO) your system B a Yellow system.
>
>Regards Sven
>
>
More information about the blml
mailing list