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Detail specifications 42AI - Level 3 ★
Impossible bid: 3NT after an initial pass
Impossible bid: 3NT after an initial pass
After an initial pass, the jump to 3NT a great fit in the opener's major and at least 2 defensive tricks.
For an initial "passer", a 3NT bid after his partners opening in a major cannot be natural...that is easy to understand. In overcall, as in 3rd seat opening, the opener's hand can be weak : The 'passer' himself has less than 12HCP, therefore he cannot conclude at 3NT!
In that sequence, as the 3NT bid is 'impossible', (and thus available...) it is used to show a support equivalent to that of a preempt, but with 2 defensive tricks. In competitive bidding, the opener is thus well informed to find the best contract for his camp: punitive double of continuation of the preempt, particularly .
Observe the 2 examples below:
After an initial pass, the jump to 3NT a great fit in the opener's major and at least 2 defensive tricks.
For an initial "passer", a 3NT bid after his partners opening in a major cannot be natural...that is easy to understand. In overcall, as in 3rd seat opening, the opener's hand can be weak : The 'passer' himself has less than 12HCP, therefore he cannot conclude at 3NT!
In that sequence, as the 3NT bid is 'impossible', (and thus available...) it is used to show a support equivalent to that of a preempt, but with 2 defensive tricks. In competitive bidding, the opener is thus well informed to find the best contract for his camp: punitive double of continuation of the preempt, particularly .
Observe the 2 examples below:
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Exercise 20213 4 ♥ On the other hand, with that hand bid 4 ♥...a real preemptive support bid.
Impossible bid: 3NT after an initial pass : follow up bids
If, after your 3NT support bid, the opps continue the fight, your partner, reassured by your 2 defensive tricks will be able to double. After a jump support to 4♥, he would defend at level 5 ...if the vulnerability allows it !
If, after your 3NT support bid, the opps continue the fight, your partner, reassured by your 2 defensive tricks will be able to double. After a jump support to 4♥, he would defend at level 5 ...if the vulnerability allows it !
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Exercise E20214 After your partner's support with the impossible 3NT, North uses a punitive double when the opps overbid.
"Impossible" 3NT bid, after an initial pass : provides an indication, should the opps decide to sacrifice at level 5
After a preempt support at level 4, Your partner would defend at level 5 ...if the vulnerabilities allow it !
After a preempt support at level 4, Your partner would defend at level 5 ...if the vulnerabilities allow it !
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Exercise E20215 After the preempt support at 4 ♥...North knows that the opps have a game....he prolongs the preempt at 5 ♥
FR version