18 March 2011

Insufficient unauthorised information

Ranked masters

I had two insufficient bid rulings at the Ranked Masters: neither involved the quagmire of Law 27B1, but rulings under other parts of Law 27, and both involved unauthorised information (without explicit reference in the laws).

1NT – 1NT
I quickly established that overcaller did not see the initial 1NT, and attempt to give my spiel. But LHO was interested in accepting 1NT, as long as the initial 1NT was authorised. I guess he was worried that if he accepted the second 1NT, this would cancel the first 1NT and he would not be able to double, as that double would be based on the values opener had shown. I explained that whatever happened, the first 1NT would be authorised, but if (say) the second 1NT was replaced by Pass (under Law 27B2) then the second 1NT would not be authorised to offender's partner: who would have to pass throughout but would still have to avoid using unauthorised information as a defender.
1♥ – Pass – 1♦/2♦
Responder attempted to correct to 2♦ after attention was drawn to the insufficient bid. I established that 1♦ was not unintended (for Law 25), so LHO could accept 1♦ and embarked on my spiel. Again LHO wished to accept the insufficient bid (and bid 1♠) as permitted by Law 27C, but the question of unauthorised information from 2♦ arose. I admitted (perhaps reluctantly) that information from the 2♦ bid was unauthorised: the fact that offender was willing to correct to 2♦ might suggest extra values; but for many players correcting to 2♦ (if permitted) would be an automatic reaction, showing no more than a desire not to silence partner.

I looked for a reference to Law 16 in Law 27B2 (which explicitly references Law 23 and Law 26) and in Law 27C, but there is none. In contrast, Law 27B1 states explicitly that Law 16 does not apply.

Late night rulings

Wednesday evening was peppered with phone consultations: two interesting unauthorised informations rulings, and one ruling where there was little to do because the players had effectively ruled at the table. Inevitably, it was this last one that appeared on the internet, as Misboarding in Teams Match. The question arose during the consultation, and again in the online topic, whether we should attempt to apply Law 86D. In consultation, we had rejected Law 86D: we both took the attitude that we would not attempt to apply that law unless there was just one non-offending side. This attitude was cemented by some discussions at the EBU panel training weekend and is based on the phrase “the non-offending side” at the end of Law 86D. Online, there were those who wanted to apply Law 86D with two (equally) offending sides.

How likely is likely?

Another interesting online topic concerned the word “likely” in Law 69: How likely is likely?. I had noticed this change in wording when the new laws appeared, but this is the first real case I have seen where the change was relevant.

2 comments:

Ensnared Finch said...

On your second insufficient bid ruling, is there really any UI? Although we know that 1D was intended, we don't know if this was an opening 1D (in which case there is no strength UI in changing it to 2D, although there are distributional inferences), or a 1-level response (where there is).

Robin Barker said...

I think there really is UI but not necessarily any real UI. That is, the UI does not (demonstrably) suggest anything. I think the opponents were more interesting in establishing there could be UI: to make a point to offending side and perhaps disconcert them.