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#1) West deals, Nobody Vul.

Q 9 4 A Q 8 5 3 4 Q 6 4 2

#2) South opens 1 and rebids 2, E-W Vul.

K J 7 4 Q 8 7 5 10 8 6 5 2

#3) East deals, Both Vul, South bids spades

A 9 3 Q 6 5 2 A Q J 3 5 2

#4) West deals, South bids diamonds and North raises, E-W Vul.

4 2 K Q 9 8 5 4 5 8 7 4 3

***Full Book by Larry Cohen with Bidding Practice and results/analysis.***