[uva72uva72]

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IMPs, ACBL robot individual

Three questions occur to me after losing 17 IMPs to those who got to the right contract on this beauty (and 12 IMPs to those who stopped in 2♥):

1. Why does my 3♣ rebid show 17+ total points? I don't think I've ever encountered a version of 2/1 that imposes such a requirement, which makes it very difficult to explore for the right contract and sacrifices one of the big advantages of making the original 2/1 bid forcing to game.

2. Why does the robot ignore its 6th ♥ and entire ♠ suit to show its doubleton ♦?

3. What is 5♣? The system notes for it are identical to those for 3♦. While I've violated the system with 3♣, the robot does not know it and has no reason to go off the rails. I can't imagine any simming would conclude that 5♣ could be the right contract on at best a 5-1 fit. Then again, the robot knowingly left me in a 6-0 (easily could have been 5-0) ♣ fit when it knew we had a 5-4 (easily could have been 6-4) ♦ fit.

[Bbradley62]

uva72uva72, on 2014-December-29, 12:52, said:

Why does the robot ignore its 6th ♥ and entire ♠ suit to show its doubleton ♦?

Over 3♣, I'd like 3N. North knows you don't have four spades (you would have bid 2♠ over 2♥) and that you probably don't have three hearts (you probably would have raised 2♥ to 3♥). He's not afraid of the unbid suit, and would like the opening lead coming around to him anyway.