[emalka]

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GIB should bid spades first, also with 5-5 in majors.
Now spade contract will be missed unless south bids again

[georgi]

 emalka, on 2011-November-19, 11:22, said:

GIB should bid spades first, also with 5-5 in majors.
Now spade contract will be missed unless south bids again

The problem here seems to be is that GIB can't bid 1♠ then 2♥ as spades will be limited to 5.

It comes from the fact that 1♣-1♦- Double promises 4+♥4+♠. So that's how GIB is supposed to express longer lengths instead of spades first.

And as hand doesn't qualify for Double, GIB picked 1♥. Double from the other hand has the glitch for problem having 6th major lengths.

It would be investigated for improvement of the rules.

[barmar]

In case you couldn't understand what Georgi wrote (I had trouble), the glitch is that the rule for negative doubles has the criteria that the majors both be 4-5 cards, 6-card suits don't fit into it. But the rule for bidding a major in this auction doesn't say to pick the longest one, it just says to bid any 5+ major you have. When it was written, they apparently assumed there would only be one, forgetting that 6-5 bypasses the negX.

[xxhong]

Why 1S then 2H would show only 5 spades? There must be some bugs in the rules. Actually there are quite a few such kind of situations when gib bids two suiters. I saw gib rebids a suit and bypass a 5 card side suit sometimes.

 barmar, on 2011-November-21, 02:02, said:

In case you couldn't understand what Georgi wrote (I had trouble), the glitch is that the rule for negative doubles has the criteria that the majors both be 4-5 cards, 6-card suits don't fit into it. But the rule for bidding a major in this auction doesn't say to pick the longest one, it just says to bid any 5+ major you have. When it was written, they apparently assumed there would only be one, forgetting that 6-5 bypasses the negX.

[barmar]

Yes, there are bugs in the rules. That's what Georgi and I were saying, in our combination of plain and broken English. They'll be fixed.