Be Careful with Signalling card

The Six of Diamond On the quarter final of National Club Championship 2006 in Point Square Jakarta, Geologi as a dependent champion meet Djarum Semarang. Djarum consists of Franky Karwur - Santje Panelewen and Supeno-Anhar Haitani. We bet them just 1 imp after loosing 16 imps on first 10 boards, 13-29. One imp that we collected is from the following board.

	Dummy
	♠ 876
	♥ K8
	♦ KJ54
	♣ J1065
West		East
♠ Q543		♠ KJ2
♥ J3		♥ Q109765
♦ 10962		♦ Q
♣ Q72		♣ K93
	Declarer
	♠ A109
	♥ A42
	♦ A873
	♣ A84

South open 1NT, when North invites with 2NT, South rejects and plays there. West leads Spade. After hold up spade for 1 round, I play the ♦A, West in order to give signal to his partner, play the ♦6. When East drops his Queen, declarer then collected 4 tricks in diamond. Not only that, declarer managed to collect 9 trick by running the ♣J from dummy. East is the victim of the squeeze in club and heart. -- Jakarta, 3 July 2006