[1eyedjack]

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MP, best hand South, ACBL robot tourney, Advanced robot version 30.

Given the extremely narrow range of values expressed by the 2H bid, how can 2N by South be an invitation? 2H WAS the invitation, and 2N declined it.

[lycier]

This is a really strange thing,while I play basic robot,Gib usually pass after my 2N in almost of similar hands.

[Bbradley62]

If 2♥ shows 5+C and 4+H with 10-11 HCP, and North actually holds 10HCP without extra length, he should decline anyway.

Oddly, the description of 2N includes up to 6 clubs and diamonds but only 4-S. I can't copy the diagram right now, but see bonh2o on the traveller for the full description.

[lycier]

Bbradley62, on 2014-June-07, 19:51, said:

If 2♥ shows 5+C and 4+H with 10-11 HCP, and North actually holds 10HCP without extra length, he should decline anyway.

Oddly, the description of 2N includes up to 6 clubs and diamons but only 4-S. I can't copy the diagram right now, but see bonh2o on the traveller for the full description.

4 card ♠ and 6 card ♣,these are impossible descriptive bids,it appears that there are some illogic confusions on basic bidding explanations.

[cloa513]

1eyedjack, on 2014-June-07, 12:34, said:

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MP, best hand South, ACBL robot tourney, Advanced robot version 30.

Given the extremely narrow range of values expressed by the 2H bid, how can 2N by South be an invitation? 2H WAS the invitation, and 2N declined it.

I am mystified why you bid over 2C- you have some clubs and basic hand.

[1eyedjack]

cloa513, on 2014-June-08, 05:27, said:

I am mystified why you bid over 2C- you have some clubs and basic hand.

Point

[Bbradley62]

cloa513, on 2014-June-08, 05:27, said:

I am mystified why you bid over 2C- you have some clubs and basic hand.

Because North might be 1444.

[1eyedjack]

Bbradley62, on 2014-June-08, 09:05, said:

Because North might be 1444.

You sure it would not respond 1N? or 2N?

[Bbradley62]

1eyedjack, on 2014-June-08, 09:39, said:

You sure it would not respond 1N? or 2N?

I will defer to someone who can either look at the code or provide counter-examples. I cannot reconcile the original hand with this one, on which I think a 2♣ response should be clear by a passed hand:

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[1eyedjack]

1N response by a passed hand is still technically forcing in Gibberish (notwithstanding that humans frequently pass it, myself included). 2C response by a passed hand is technically non-forcing. With an assured 8 card Heart fit I can understand that GIB would not want to make a bid that has the potential for stopping out of a Heart contract. As for why GIB did not direct raise Hearts, well that is another matter. And does a jump response to 3C by a passed hand show a Heart fit?