JUST LISTEN TO WHAT BERNARD YOMTOV SAYS ABOUT BRIDGE AND WHY SOME CONTROL IS NEEDED TO REIN IN AND OUTLAW COMPLEX AND CONVOLUTED BIDDING SYSTEMS

Since bridge is a partnership game and chess is not , greater efforts are needed to stop opponents gaining an unfair advantage by having
complex and convoluted bidding systems. 

" If your opponent in a chess game does something very unusual you can, at least in principle, figure out how to counter it right there at the board. Advance preparation would be nice, but is not required.

In bridge, players faced with complex and unfamiliar systems cannot do that. Any counter requires agreement between the partners, and that can't be done at the table, by the very rules. Even pre-alerts and the like don't solve this, because of time constraints, incomplete understandings, etc.

Further, at bridge you will not know all the twists and turns the opponents' auction might take. In chess it is all right there in front of you, if you can just figure it out.

What I'm saying is that in chess there is no inherent obstacle to countering an unusual move. In bridge there are such obstacles. "

System cards loaded with obstacles , yet no licensing constraints ......it's a recipe for anarchy .