The successful declarer will study the entire hand before he plays to
trick one. Here is a good example.
Scoring: Matchpoints (Pairs)
Hand #47
Dlr
E
Vul
E/W
Q2
AK
KQ8752
1073
9763
876
A9
KQ94
J5
10952
1063
A865
AK1084
QJ43
J4
J2
West
North
East
South
Pass
1
Pass
2
Pass
2
Pass
3
Pass
3
Pass
3
Pass
4
All Pass
BIDDING: This N/S pair
plays the 2/1 system so 2 was forcing to game. Over
his partner's 2 bid, North's bid of the fourth
suit (instead of notrump) suggested he did not have a stopper in that
suit. South next showed a mild preference to diamonds also
denying a club feature. After North showed a doubleton in spades,
South carried on to game.
PLAY: The bidding
practically begged for a club lead and the defenders quickly led three
rounds. Declarer trumped the third club and carefully studied his
situation. Since he still had to lose a diamond, he could not
afford to lose a spade trick. That meant the outstanding trumps
must divide 3-3 or the jack had to be doubleton. But if he drew
trumps and they were 4-2, the defenders would lead another club after
winning the diamond ace. So declarer played a diamond to dummy's
king and the defenders could no longer defeat the contract.
Declarer next unblocked the heart ace-king and drew trumps.
Note if the defenders win the diamond and lead another club, declarer
can ruff this in dummy. Then he unblocks the hearts, plays the
spade queen, and returns to his hand with the jack of diamonds to draw
trumps. Be sure to see that declarer must not draw trumps before
ensuring his tenth trick, a diamond.