Tong Tjoa reported to the Bridge Bulletin (my favorite magazine) about the following hand he held in a regional team game. His partner opened 3♥ and he was looking at:
♠A K Q J 10 8 7 6 ♥ -- ♦-- ♣A K Q J 6.
Tong doesn't give the auction, but I assume from his commentary that he bid 7♠ directly. West led the ♥A and here were the two combined hands:
Tong recognized the power of the ♠9. He ruffed the heart, played the ♣A and ruffed a club in dummy. His careful play was rewarded when the opening leader had the ♥A K, the ♦A and five clubs to the 10!
1. The opening lead that defeats the grand slam is a trump. West had a lot of information and perhaps should have figured this out. South must have long, solid spades and cards somewhere else, i.e. clubs. Am I being results oriented in thinking he might have worked this out?
2. When you have basically 13 tricks in your own hand, don't just jump to the grand. You should try to get doubled and a better approach is to bid 4NT. After North's response, then bid 7♠. West might think you've had a key card accident and double. If he tries to cash one of his aces, you have a surprise for him.