This should indicate a void and ask South to bid a grand slam if his cards are suitable.

How many points do you need to bid a small slam?

South was considering whether to bid a grand slam when East entered the fray with a double.

They therefore tried to regain the lost ground on the following deal by bidding a slightly optimistic grand slam of their own.

His wife concluded, on this basis, that he held the heart ace and bid a grand slam.

And how can South immediately bid a grand slam in a suit in which he is void?

And the only way the Canadians could have lost the match was to bid a grand slam and fail.

It may well be that North wants to bid a slam, but has two fast losers in the spade suit.

The winners, using the auction shown, were the only pair to bid and make a grand slam.

I had bid a small slam in spades, doubled and redoubled, vulnerable.