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BM2000 Questions in reality 1

These three deals happened in last weekly training before WYBF.
Now let's start!!!

Board 9
Dealer: North
Vul: E-W
 North    East    South     West
 Pass      Pass       1♢         1♠
  X          Pass      2♡        Pass
  3♢        Pass      3NT       AP

Lead: ♠6

How to play?
In view of the suit combinations, following ♠9 is the only choice to win 2 tricks in ♠. However, as a whole, East is the danger hand, assuming that you win with the ♠J in the first round, you could avoid East from playing ♠. Avoidance play is obviously applied here. Considering the vulnerablity, it is almost impossible for West to bid 1♠ without AQ. So you win with the ♠J in accordance with expectations. And now how to play?

There are 1♠, 2♡, 3♢, 2♣, totally 8 tricks only. Luckily, the structure of ♡ is quite interesting. Literally, the ninth winner might come from ♡. You play a small ♡ from table to 8 in hand. Unfortunately, West wins with the ♡9 and returns ♡Q. If heart is 3-3, you have brought contract home. If West holds ♡Q9, it is quite unusual. It is strange to help declarer to build his long suit. If so, it is a nice swindle. It seems to be 4♡ in West. So it is inevitable for West to be thrown in during the endplay. And how to deal with ♢ is another hot potato. In reality, winning with the ♡A and crossing to the hand with the ♢A quickly might be the most efficient way, hoping West forget to throw the ♢Q away in the fast speed. Actually, I cross to the hand with ♣A and play a small ♢ from hand. If West follows small, I will with the ♢K and guess West is 3♢ or 2♢ with Q. If West follows Q, let him win. Luckily, I guess right. After drawing ♢ and ♣K, I play the last ♡ from while East dicards a small ♣. And now West cannot escape from being thrown in.

The full deal
Board 9
Dealer: North
Vul: E-W
It is worth mentioning that East must throw ♢J to warn partner to throw ♢Q away if the declarer plays a small ♢ from table quickly.


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