gnasher, on 2013-December-19, 05:56, said:
Taken literally, it's a nonsensical rule. The set of hands on which one player will take a given action is different from the set of hands on which any other player will take the same action. For any sequence containing at least one call from each side, the meaning of the sequence will differ at least slightly. It would be better if the rule said "differs significantly" rather than "differs in any way".
Yes, I've always thought this rule made no sense, except (possibly) in some very very limited circumstances, such as the problem being discovered before second seat has a chance to act.
Even apart from people having different styles with the same methods (e.g. the intersection of your 3S jump overcall and my 3S jump overcall is more precise than playing against only one of us) you get problems such as
try 1: 1NT Pass...
try 2: 1NT Pass...
but the first player who passed over 1NT was playing 2C for the majors and everything else natural.
the second player to pass was playing (say) multi-landy. So you know from the first auction that LHO doesn't have a natural 2D overcall; you don't know this the second time.
This reminds me of 27b1b, another law that taken literally can never apply.