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Play this slam from BBO
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You are playing with a bot. Scoring is matchpoints.

 Consider this hand:

South
AJ9
AK104
54
Q954

What do you think your opening bid should be?

Over time, I have found that opening 1NT a point light in all cases is the percentage bid when you are playing in the bot games. This is because of the bot's tendency to make passive opening leads. 

You open 1NT, and unfortunately the auction spins out of control. You're starting to regret opening 1NT. Tongue Out

South
AJ9
AK104
54
Q954
W
N
E
S
1NT
P
2
P
2
P
3
P
4
P
4NT
P
5
P
6
P
P
P

Now you are in 6H. The opening lead is a club.....

West
North
K108
QJ932
AK97
7
East
South
AJ9
AK104
54
Q954
W
N
E
S
 
1N
P
2
P
2
P
3
P
4
P
4N
P
5
P
6
P
P
P
D
1
6 South
NS: 0 EW: 0
3
7
A
4
2
0
1
5
A
6
2
3
1
1
2

 You have a play for this slam. 

You will have to guess who has the Q. If that is successful, you have three spades and two diamonds in top tricks in the side suits, therefore you will need seven tricks from trumps. You can ruff two diamonds in hand, giving you five trump tricks in dummy and two ruffs in hand for seven, or ruff three clubs in dummy, giving you four heart tricks in your hand and three ruffs in dummy for seven.

Which line is better?

West
North
K108
QJ932
AK97
7
East
South
AJ9
AK104
54
Q954
W
N
E
S
 
1N
P
2
P
2
P
3
P
4
P
4N
P
5
P
6
P
P
P
D
1
6 South
NS: 0 EW: 0
3
7
A
4
2
0
1
5
A
6
2
3
1
1
2

It is possible that the K will ruff out third. If it does, you won't need to guess the spades. therefore I think ruffing clubs is a little better. It is possible that the QJT will ruff out third as well, setting up the 9, but you can try that later as it only requires one ruff.

So you ruff a club and play a trump to your hand. Hearts are 2-2, which means you are assured of seven trump tricks and all you need is the spade guess. 

What next?

West
North
K108
QJ932
AK97
7
East
South
AJ9
AK104
54
Q954
W
N
E
S
 
1N
P
2
P
2
P
3
P