Sample hand

North
♠ 9 8 4
A K Q T 6
Q 3
♣ K Q 3
West
♠ T 2
8 7 3
T 8 4 2
♣ J T 4 2
East
♠ A K 5 3
5
A J 9 6
♣ A 9 7 5
South
♠ Q J 7 6
J 9 4 2
K 7 5
♣ 8 6

Tricks chart

declarer
northeastsouthwest
t
r
u
m
p
8575
8484
4949
4949
NT8474

Achievable players contracts

declarer
northeastsouthwest
t
r
u
m
p
2♠-1♠-
2-2-
-3-3
-3♣-3♣
NT2NT-1NT-

Best contract levels

North 2NT, 2♠, 2
East 3, 3♣
South 1NT, 1♠, 2
West 3, 3♣