Bridge

COBRA

COBRA is a computer-designed bridge bidding system, developed by E. T. Lindelof. Here is a COBRA system summary which includes the publisher's address for ordering the book.

I tested the COBRA system on the 1987 World Championship hands, and through 48 boards (reviewing a previous test more carefully), I have found that it bid about 1/2 IMP a board worse than the experts. Lindelof claimed much better results testing it on the 1959 Bermuda Bowl, bidding by computer rather than with the book description; I cannot test this. Here is a summary of the test and a sample hand from the test.

Other sites

To discuss bridge, go to the Usenet group rec.games.bridge.

Articles on a variety of bridge topics are available on the Usenet Bridge Archive in Australia and on its US mirror site. Neither has been updated recently

Also of interest are the American Contract Bridge League and the Israeli Bridge Page.

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