Deal 12	♠   ♥   ♦   ♣		WEST   NORTH   EAST   SOUTH 1♥ pass  BID        The bidding has gone as shown. It is your bid.
	♠ 9 ♥ K Q 8 5 ♦ A 9 7 2 ♣ K 7 4 3

 

Deal 12	♠   ♥   ♦   ♣		WEST   NORTH   EAST   SOUTH 1♥ pass 3♠ pass 4♣ pass  BID      The bidding has gone as shown. It is your bid. You have an opening hand with four of partner's Major suit so naturally you want to force to game. Although you could bid a Jacoby 2NT, the presence of the singleton ♠ makes a Splinter Bid more attractive. So you double-jump to 3♠. Partner now bids 4♣. What do you say next?
	♠ 9 ♥ K Q 8 5 ♦ A 9 7 2 ♣ K 7 4 3

 

Deal 12	♠ 7 6 5 ♥ A J 10 9 6 ♦ K Q ♣ A 6 4		WEST   NORTH   EAST   SOUTH 1♥ pass 3♠ pass 4♣ pass 4♦ pass 6♥ pass pass pass The bidding has gone as shown. It is your bid. You have an opening hand with four of partner's Major suit so naturally you want to force to game. Although you could bid a Jacoby 2NT, the presence of the singleton ♠ makes a Splinter Bid more attractive. So you double-jump to 3♠. Partner now bids 4♣. What do you say next? Partner's 4♣ bid is control showing, and indicates he is thinking slammish. You bid 4♦ showing your control and partner bids 6♥. As you can see, North should make 12 tricks by discarding one ♣ loser on your ♦A.  Deal 13
	♠ 9 ♥ K Q 8 5 ♦ A 9 7 2 ♣ K 7 4 3