Calculate carefully beta2.0

This is another defense problem in our weekly online training on 5th Feb, 2018.

Board 3
Vul: E-W
Dealer: South

North East South West
1♠ X
2♠ 3♣ 4♠ AP

Lead: ♢A

Trick North East South West
1 ♢3 ♢2 ♢8 ♢A
2 ?

You lead ♢A and your partner follows ♢2. How to defend? Would you continue to play ♢ or play a small ♣ what your partner has bidden or draw a trump as a negative defense?

You have to consider several questions as followings:
Q1: Where are the 4 winners?
Q2: Who will hold singleton ♢, your partner or the declarer?
Q3: If the declarer holds 3♢, will losers be discard at once?
Q4: Is it necessary to play through ♣ immediately? Could the loser in ♣ be discard?

Your partner bids 3♣, indicating that barely will he hold 4♡, otherwise he may bid X instead of 3♣. It is obvious that the loser in ♣ couldn't be discard at once and the declarer holds long heart. So it is unnecessary to play through ♣ now. So continuing to play ♢ or playing ♡ becomes the main question. If your partner holds singleton ♢ and the declarer holds singleton ♣A, the distribution of the declarer will be 5♠, 4♡, 3♢ and 1♣, where is the entry to dummy to discard the loser in ♢. Your partner will not bid 3♣ in such vulnerability if he holds 3 small ♠ and 6 cards ♣ with QJ only. All in all, even if the declarer holds 3♢, the losers in ♢ always exist. If the declarer holds singleton ♢ and 5 small hearts, a ruff in ♡ is the only way to defeat the contract. Even if the declarer holds ♡A, you could still play through ♣ or draw ♢ by winning with the ♡K. Playing ♡ in the second trick is an unexpected but reasonable coup after carefully calculating.

The full deal:
Board 3
Vul: E-W
Dealer: South

Fu said that East should X at last, which would greatly reduce the difficulty of defense.

Comments

Online training: An unexpected but reasonable ducking

HAHAHA, after one month off bridge, I'm back!!! This deal happened in our weekly online training, Nov 5th, 2018. First of all, I have to admit my mistake. Hahaha, to be honest, the training was quite boring. After 12 boards, the scores were still 2:2. Although I knew X was not allowed and I would be fined if 3♣X was brought home, I still couldn't help to doing that. Board 13 Dealer: North Vul: Both North East South West Pass Pass 1♢ 2♢* 2♡* 2♠ Pass Pass 3♣ X AP 2♢: Michael 2♡: ♣ suit, better than 3♣ Lead: ♡3 (if hasn't raised, count has a priority. That is to say, xxx lead the smallest card) Table followed ♡9. Normally, you would play ♡Q causally. Would it be correct in this case? Leading analysis: East seems to hold 3♡, unless East hold ♡32. In that case, North might not scramble for 3♣ under such vulnerability if North has 4 cards ♡. Bidding analysis: There is no doubt that East doubled,

Asian Game_ Pairs Final: Creating an entry!

This deal happened in the last segment of Asian Game Pairs Finals. Who played this deal would never be mentioned in my blog. I was quite afraid of being accused of insulting players. Board 15 Dealer: South Vul: N-S South West North East 2♡* Pass Pass X Pass 2♠ Pass 3NT AP 2♡: Weak 6 cards ♡ Lead: ♣4 North followed ♣Q and you won with the ♣A. And now, how to play? Now you had 3♣, 1♡, so you need 4♠ and 1♢. You must assume that South hold ♢A and North hold ♠K. Otherwise it would down quickly. The leading was quite strange. If he was 1-6-3-3, he would lead ♢. If he was 2-6-2-3, ♡ was the normal leading. I felt South hold 4 cards ♣, because he led quickly. However, it was hard to say. Anyway, you need 2 entries to finesse ♠K. One was ♢K, appreciating the leading, ♣9 became another entry. Before everything, you must knock out ♣J first. 1. If South won with the J and returned ♣. The distribution was clear. And South must hold d

Online training: Please remember to detect the honors beforehand !!!

This deal happened in our weekly online training last Monday. I couldn't concentrate my attention due to the lack of card sense online. Rookie mistake should be mentioned here. Board 13 Vul: Both Dealer: North East West 1NT 2♣ 2♡ 4♡ Lead: ♠7 South led ♠7 while North followed ♠J. And I won with the ♠Q. Now what's your plan? ♠7 seemed to be doubleton. Firstly, you couldn't avoid to lose 1♠, 1♢ and 1♣ at least. In other word, you must make a right guess in who had ♡Q. For me, due to the leading, I had supposed South hold long ♡ and he hadn't led trump, so I just played casually, cashing ♡K, then ♡J->♡2->♡5->♡Q... Oops... Doing some detection first to find more clues might be a better choose. Sending out ♢ first and whatever who won, he had no choice but to return ♢ or ♠. I could win in hand. Crossing to table with ♣K. And now the distribution was clear. If one A for each, now it was your guess time, no more information I thought. May

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