Problem

The Auction:

! - Splinter bid, 0-1 diamonds, 4+ support for hearts

South opened with 1♥, West overcalled 1♠. North jumped to 4♦ – a splinter bid which promised at least 4-card support for hearts, 0-1 diamonds and slam interest. East doubled (diamonds).

South bid 4♥. West passed. But instead of passing, North asked for aces. Moreover, South knew North had not mastered RKCB-keycard responses and had to respond with 5♠ to show 3 aces, already feeling giddy due to the heights where North`s bidding had taken them. After all South had nothing but aces and spaces.

West doubled (spades) and North declared 6♥, which became the final contract.

West led the ♦A. As dummy hit the table, 4 HCP stared back to South. Can South get out of this jam and win 12 tricks?

Vulnerable: both

Contract: 6♥ by North/South