Bridge players constantly argue about the 'best' bidding systems and conventions. Strong Club or Natural? With or without relays? Standard or 2/1? Weak or strong notrump? Was Blue Club really better than the natural systems in the 1950s and 1960s? Is Two-way Stayman as good as Stayman and transfers? Disciplined or undisciplined weak twos -- which work better? And many, many more...

Well, now we have the answer to those questions, provided by exhaustive analysis and the results of computer simulations. And not only which is better, but also with how much, typically tested in thousands of 24-board IMP matches.

Player skill is eliminated, and bidding methods can be judged solely on their own merits, playing the same deals via the same AI software. It is as objective a test as modern technology can provide.

And the results may not be what you would expect...