Deal 6	♠   ♥   ♦   ♣		WEST   NORTH   EAST   SOUTH 1♥ pass 3♥ pass  BID  pass     Your partner's 3♥ is a limit-raise, 11-12 points with ♥ support. Decide what you would say next, then click on BID above.
	♠ K 10 8 ♥ A K 9 8 6 4 ♦ -- ♣ A K Q 7

 

Deal 6	♠   ♥   ♦   ♣		WEST   NORTH   EAST   SOUTH 1♥ pass 3♥ pass 4♣ pass 4♥ pass  BID      Your partner's 3♥ is a limit-raise, 11-12 points with ♥ support. Decide what you would say next, then click on BID above. What you want to know is whether partner holds the ♠A. If you bid 4NT and he shows two Key-Cards all will be well, you will know they are the two missing Aces. But if he shows just 1 Key-Card you will be in the soup since you can't tell if that Key-Card is the useful ♠A or the practically useless ♦A. So you don't use RKCB, you use control-showing and bid 4♣. Partner says 4♥. What do you bid next?
	♠ K 10 8 ♥ A K 9 8 6 4 ♦ -- ♣ A K Q 7

 

Deal 6	♠   ♥   ♦   ♣		WEST   NORTH   EAST   SOUTH 1♥ pass 3♥ pass 4♣ pass 4♥ pass 4NT pass 5♣ pass  BID    Your partner's 3♥ is a limit-raise, 11-12 points with ♥ support. Decide what you would say next, then click on BID above. What you want to know is whether partner holds the ♠A. If you bid 4NT and he shows two Key-Cards all will be well, you will know they are the two missing Aces. But if he shows just 1 Key-Card you will be in the soup since you can't tell if that Key-Card is the useful ♠A or the practically useless ♦A. So you don't use RKCB, you use control-showing and bid 4♣. Partner says 4♥. What do you bid next? Partner would have control-bid ♦s if he had the Ace. You may not think that helps but it does since now you can bid RKCB. You bid 4NT and he answers 5♣. What is your next bid?
	♠ K 10 8 ♥ A K 9 8 6 4 ♦ -- ♣ A K Q 7

 

Deal 6	♠ A 6 5 2 ♥ Q J 5 2 ♦ K J 3 ♣ 8 2		WEST   NORTH   EAST   SOUTH 1♥ pass 3♥ pass 4♣ pass 4♥ pass 4NT pass 5♣ pass 6♥ pass pass pass Your partner's 3♥ is a limit-raise, 11-12 points with ♥ support. Decide what you would say next, then click on BID above. What you want to know is whether partner holds the ♠A. If you bid 4NT and he shows two Key-Cards all will be well, you will know they are the two missing Aces. But if he shows just 1 Key-Card you will be in the soup since you can't tell if that Key-Card is the useful ♠A or the practically useless ♦A. So you don't use RKCB, you use control-showing and bid 4♣. Partner says 4♥. What do you bid next? Partner would have control-bid ♦s if he had the Ace. You may not think that helps but it does since now you can bid RKCB. You bid 4NT and he answers 5♣. What is your next bid? It was a lot of work but you have figured out that partner holds 11-12 points including one Key-Card which must be the ♠A. It looks like the slam is a good idea so you say 6♥.  Deal 7
	♠ K 10 8 ♥ A K 9 8 6 4 ♦ -- ♣ A K Q 7