Here's another example of a convention that can get you to the right
slams and keep you out of the bad ones.
Scoring: Matchpoints (Pairs)
Hand #37
Dlr
W
Vul
E/W
AJ5
K1053
Q9542
A
96
QJ86
1087
9763
1072
A9742
63
1042
KQ843
AKJ
KQJ85
West
North
East
South
Pass
1
Pass
1
Pass
2
Pass
5*
Pass
6
Pass
7
All Pass
*Exclusion Blackwood
BIDDING: North's best
rebid was a raise of his partner's spades. Raising with only
three cards is acceptable holding honor third along with shortness in a
side suit. After hearing the diamond bid and the spade raise,
South leaped to the five level in hearts. This was the Exclusion
Blackwood convention asking for the number of aces OUTSIDE of the heart
suit. North showed two aces and South bid the grand slam.
PLAY: There was nothing
to the play with declarer quickly claiming thirteen tricks. It's
clear to see that standard Blackwood would not have helped in the
auction. The response of two aces would not have told South which
aces North held. This is a convention you and your partners might
want to consider.