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Bridge Winners Profile for Doug Bennion

Doug Bennion
Doug Bennion
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Basic Information

Member Since
Aug. 15, 2011
Last Seen
2 hours ago
Member Type
Bridge Player
about me

Creator of Bridge Buff, an early bridge-playing program, and Visual Deal, an early deal-generator.

Author several Bridge World articles. Try out Jammer 2D!

Author Scramble Stayman! Don't settle for 1NT!

Still building, but worth a look!

Bridge Information

ACBL Ranking
zelig and doug
Copy to my cards View/Print
Rosenkranz type redouble
Other. Transfers begin with XX = clubs. 2 = diamonds, your cuebid raise. 2 = hearts. 2 = constructive raise. 2 = noise.
Official Version of New Convention Charts
However they seem to be allowed over an opponent's double on the Basic+ chart.
Do you pass
Your best fit will be 5-2 or worse about 23%, 5-3 about 43%, 5-4 about 28%, and at least 5-5 about 6%. Bidding looks routine to me at matchpoints, and did before I looked at the sim, except maybe unfavorable.
Valuation of (Sub?)-minimal 5 Card Major Openings
5440 hands play about 5 points better when a fit has been found, so those minimums will almost always really grow up. Quick and dirty sims show responder will have at least 3 hearts more than half the time, and the balance of the time responder is a huge favorite ...
Defence to magic club
Transfers. X = hearts, 2 = spades, 2 = balanced 12-14, 2NT = balanced 15-17. 2m = natural NF.
Mastering the Robots
Thanks for the article. I wrote an early-generation bridge program [Bridge Buff] so have some experience with the foibles of double-dummy play. Bear in mind I’m speaking from memory here, not having looked at a line of code in 10+ years. Also I confess to little first-hand knowledge of ...
NABC Individual: Robot Coding Horror?
The bots don’t (or shouldn’t) describe their hands when they announce ‘this bid shows'. They should explain the meaning of the call, not what they actually hold. Say the auction has proceeded (1) 2 (2) 2. The same 'this bid shows' will be made ...
NABC Individual: Robot Coding Horror?
If the seed is the same, I don't understand how one bot can lead the A, and another the K. The difference in play might result from the K lead possibly suggesting/implying/promising the Q, leading to different sims.
2NT overcall of a Multi 2!D
Play 2 ranges. Proper shapes for takeout doubles are fairly rare, and a good chunk of them will be for the 'wrong' major, so don't bother wasting bids on them until suit is revealed. Play transfers so X is hearts, 2 is spades, then 2 is a ...
5533 or 5542?
All 5332 in 1 or 1NT really does sharpen your 1M openers and followups.

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