nige1, on 2013-August-23, 19:06, said:
IMO:
Some players treat system-notes as a kind of private crib to be shielded from the prying eyes of curious opponents. Perhaps that practice is OK in some jurisdictions.
I think bridge players treat system-notes as a tool for their own system work. I think few would mind having opponents looking in the notes, but typically that is not practical.
For example. Our section with bidding after 1C (we play precision) starts: "RP, except...". That's a reference to a norwegian book, where we play the corresponding chapters in full expect when something else is agreed. That way we save say 30 pages of sequences. But good luck to anybody else figuring out what we mean. And our notes are (not surprisingly) in Danish btw.
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WBF rules seem superior: If you can't disclose all your understandings on your system-card, then you should complete as many supplementary-notes as necessary (not as private aides-mémoire but for perusal by opponents). Your supplementary-notes should have the same depth of coverage as your system-notes, so they might as well replace them (saving unnecessary work).
I disagree that this is the WBF policy.
As I understand it, WBF policy for supplementary sheets is that they should include: conventional systems and treatments that require defensive preparations (which there was no room to describe on the card itself).
This is very different from a pair's system-notes in full.
I have met pairs that had dozens, maybe even a hundred, of pages of supplementary sheets. This is clearly not the intention. The intention is that the sheets could be rewieved by the opponents in advance for their preparations.
It has been suggested that a pair should file its complete system in English in advance with the organizer (in WBF-tournaments). This has not been enforced. It would also be quite a burden for non-English pairs with the translation. So far I think pairs can file their system if they want to, in any language. The purpose is not disclosure as such but rather to serve as documentation if there will be a TD case of possible misinformation.
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The supplementary-notes should be designed to be easy for your opponents to reference and to understand.
Yes, and easy to skim through in advance, which is their main purpose.
I will make the claim however, that I have
not once ever in my ~14 years of playing international bridge found something concretely useful for me in my opponents' supplementary sheets. Not once.
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It would be worthwhile to try to memorise explanations from them, to facilitate your answers to opponents' questions. A beneficial side-effect would be that you and your partner would be more likely to give identical full explanations, avoiding the fraught appeals that have decided recent high-profile matches.
If we take the Vanderbilt HH-appeal then no amount of notes would have been likely to avoid the appeal. The misinformation was after a 1x-1y-2NT continuation, and the opponents would have been most unlikely to try to gauge a meaning of the actual sequence out of a huge system-book rather than just ask for it (and as it happened, get misinformed because of bad memory).