Avoidance play

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This article concerns contract bridge and uses terminology associated with the game. See Contract bridge glossary for an explanation of unfamiliar words or phrases.

In contract bridge, avoidance play is a play technique whereby the declarer tries to avoid one particular defender to take a trick, so as to eschew a dangerous lead from that hand. The dangerous hand is usually the one who is able to finesse through declarer's honors, or to give a ruff to the partner. Avoidance play can be regarded as one type of safety play.

[edit] Example

♠	AJ96
♥	742
♦	10
♣	AQ1062
N S
♠	K1084
♥	Q84
♦	A965
♣	KJ3

South plays 4♠ and West leads ♥K (indicating the ace), East playing the 3 (signalling the odd number of hearts and discouraging the continuation). West continues with a club, increasing the probability of defensive ruff in that suit.

The declarer has plenty of tricks, but is missing the trump queen and two top hearts; giving up the third heart early would probably mean losing the contract. Since ♥A is almost certainly with West, if East gets the trump queen, he could finesse declarer's ♥Q. Thus, the declarer must not allow East to get the trick, and so must play a trump Ace first and finesse against the queen in East's hand. If West has the ♠Q and takes it, he could only take one more heart trick.

Note that, even if South had fifth trump instead of a diamond (playing in 5-4 fit), the same technique—finessing the queen against East—would practically ensure the contract (safety play). If the trumps are distributed x—Qxx, the percentage play of playing AK in trumps would endanger the contract, as East could ruff a later round of clubs with ♠Q and play a heart through. With the avoidance finesse, West could win a "non-existing" trump trick if the trumps were distributed Qx–xx, but could not set the contract.