Restricted Choices

Pages: Page 5 of 7

Dealer: North
Vuln: Game All
Scoring: IMPs
  1. spadeK 2
  2. heartK 10 9 7 6 2
  3. diamondA K 7 2
  4. club9
  1. spadeJ 8 7 3
  2. heartJ 4
  3. diamond6 5 4
  4. clubK 10 6 3
club diamond heart spade NT
N - 6 4 - 2
S - 6 4 - 3
E 1 - - 1 -
W 1 - - 1 -
Green square in centre
  1. spadeQ 10 6 5
  2. heartA Q 8 3
  3. diamond8
  4. clubJ 7 5 4
  1. spadeA 9 4
  2. heart5
  3. diamondQ J 10 9 3
  4. clubA Q 8 2
Double dummy analyser: makeable contracts
West North East South
1diamond
Pass 1heart Pass 2club
Pass 2spade Pass 3spade
Pass 4NT Pass 5heart
Pass 6diamond End
This can be justified not only on the grounds that West has fewer "vacant slots" (three diamonds to East's one), but also with the Principle of Restricted Choice. If West had started with heartQJx then half the time he would have played the queen, so there is an a priori assumption that he doesn't have the queen! It would have been exceptionally interesting if East had won the heart with a deceptive Ace - I wonder what line declarer might have taken then?
Dick can take over now .
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