Posted 2013-January-17, 15:47
Being North at which point you would bid spades?
After 5♥ which is bid slam after contract was settled by inquirer or over 5♣?
GIB gives cuebids from lower to higher, so first Ace it has is in diamonds, 4♥ is just close-up with no extras.
So due lack of ♣A, it bids 5♦. To bid 5♠ means it bids slam again and skips diamond which you although bid them, might be still interested in.
How you would bid with the hand like:
♠Kxx ( you skipped 4♠, which it means ♠A for GIB, but you still could have K,KQ, etc. Especially if that going to be hand at the dummy.)
♥AKQxx
♦JT98
♣A
similar up to 5♣ then over 5♠ call you might be on slam with two quick diamond losers.
Probably easy slam to be bidded by the majority(none-gibs), but there could be several points of view i guess.