Deal 4 ♠  
 
 
♣  
 
 WEST  NORTH  EAST  SOUTH
 BID 
 
 

You dealt so it is your bid. What do you say?
  ♠ Q J 10 5
Q 9 8
A Q 4
♣ A 9 8
 

 
Deal 4 ♠  
 
 
♣  
 
 WEST  NORTH  EAST  SOUTH
1NT
pass4NTpass BID 
 

You dealt so it is your bid. What do you say?

You open 1NT. Again.
This time partner jumps to 4NT. What do you bid?
  ♠ Q J 10 5
Q 9 8
A Q 4
♣ A 9 8
 

 
Deal 4 ♠ A K 3
A K 7
10 8 2
♣ Q 10 7 5
 
 WEST  NORTH  EAST  SOUTH
1NT
pass4NTpasspass
pass

You dealt so it is your bid. What do you say?

You open 1NT. Again.
This time partner jumps to 4NT. What do you bid?


Partner's bid is not Blackwood.
It is called a Quantitative 4NT and he is telling you he has a balanced 16-17 point hand.
He is inviting you to bid 6NT.

With 17 you accept invitations, with 15 you decline. You have 15 so you pass.

As you see, there are 9 easy tricks and you can probably set up another. But you have no chance to make slam.

 Deal 5 
  ♠ Q J 10 5
Q 9 8
A Q 4
♣ A 9 8