barmar, on Oct 10 2005, 11:29 AM, said:
The advice that's usually given to players is that they should do what they would have bid without the UI. I don't think the reason for this is because it's what the Law says, but because it's usually the most pragmatic.
The reason for it is more often than not because that's the information the teacher was given 15 years ago, and she has never looked it up in the Book either. Law 73 is neither esoteric or convoluted (I will admit, Law 16C is, especially with differing definitions of LA from different SOs). One just has to read to understand.
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Figuring out what the UI suggests, and trying to calculate how this restricts your bidding, is hard enough for TDs and appeals committees to do when they're not under time pressure and can survey other players; it's nearly impossible to get right at the table.
Figuring out what the UI suggests is usually pretty easy. Working out the logical alternatives and deciding on 60% vs. 75% vs 80% is hard. Luckily, at the table, the player doesn't need to do that. "Will I get away with X?" is not the question - and if you are deciding based on that, you are violating Law 73C. "I know the UI suggests X - is there a reason for Not X? And is it reasonable?" is the right question.
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AFAIK, there are no books that teach how to proceed when in possession of UI; there are just a few poorly-understood laws.
As far as I know, just the One Book. And frankly, the reason Law 73C is poorly understood is that nobody reads it, nobody teaches the Proprieties in any of the lessons, and the wrong advice keeps being handed down from player to player.
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So unless it's clear what the implication of the UI is, just go ahead and bid/play normally. A TD or AC might change the result, but this should not be taken as an accusation of cheating or poor ethics, any more than a penalty card or a transferred trick due to a revoke is.
This, however, is exactly right. If you can't work out what the UI suggests, then you are under no restrictions; and if others disagree with you, there's no ethical implications. It really is rare that you can't work out what the UI suggests, though.
Michael.