Ok, so you PROBABLY bid it via (1♣)-X-(1♠)-X*-(P)-4♥, where * = responsive dbl. Bidding this game isn;’t the trick. The trick is how to make 10 tricks after a club opening lead.
T1. C4 C2 CQ H2
Try to construct the opponent’s hands. Do you play hearts to be 2-2? Do you finesse one or the other for the heart queen. Do you play trumps early or late? Discuss your line, best logic wins…but your line has to make to count.
This hand was played on BBO on may 8, 2004.

Help

West North East South
- Pass 1♣ Dbl
1♠ 2♣! Pass 4♥
Pass Pass Pass
Where !2♣ = shows 4+ ♥’s, and 1RF equality method