Tuesday, September 23, 2008

It's not a Match Point Game

There are two main types of scoring in bridge, an imp and match point game. In the former type, you can play safely to bring home the contract while in the latter you should play for overtricks, bidding aggressively such as making a penalty double on a thin contract. I found out such player characteristic on a team event. I was first to speak and opened 1S (precision), LHO overcalled 2H, partner raised, RHO made an information double, I passed. LHO bid 3D(natural), all passed, and back to me and reopen with 3S. RHO made a penalty double.
SouthLHOPartnerRHO
1S2H!2SX
pass3Dpasspass
3SpasspassX
West started with a small diamond. Here's the hands.
Dummy
♠ J 8 2
♥ Q 8 7 2
♦ K86
♣ 865
Declarer
♠ A 10 9 4 3
♥ K 4
♦ J 4
♣ AJ32
How do you plan the play? There is a danger you will go down more than 1 trick. You can see that 3D is a good contract. So, you have to play for 1 down at maximum. I play low on dummy, East win with the ♦A. He returns a small club. To have a better chance, I play the Jack, but it loses to ♣K. Next club I win with the Ace on East ♣Q and I play a third round of club, East win and all follow. A diamond return is won in dummy, diamond ruff and I play a small heart to Queen. Next a heart (East play the Jack) to a stiff King. West win and return the heart. I ruff. Here's the position on 4 card ending.
Dummy
♠ J 8 2
♥ 8
Declarer
♠ A 10 9
♣ 2
I calculate west's distribution. 5 cards heart along with 4 cards diamond and he has shown 3 cards club, hence he has 1 card spade at maximum. He has shown ♥A, ♣ K and ♦Q. So, west should begin with a stiff honor in spade. So, I lay down the ♠A and see west follow with ♠Q. I ruff my last club with ♠J with result in with just 1 down, just a flat board as 3D just books in other room. Did you recognize that West made an overcall with just 11 high card point and a stiff honor in opponent suit? It's not a match point.

Tuesday, August 19, 2008

Double Dummy Defense

On the last session in the swiss event, you need to win as many victory point as possible to grab the championship title. However, when you are on the high ranking table, your opponent is also a good team. So, you need to play very carefully especially in the defense. I found it in recent tournament. I was first to speak and opened 1D (precision), LHO pass, partner bid 1NT, RHO pass as well as you. LHO bid 2D (majors), partner passed, RHO bid 2H. As partner was on the balancing position, he doubled for take out, I passed with: ♠ K1095 ♥ KJ105 ♦ 865; ♣ AJ.
YouNorthPartnerSouth
1Dpass
1NTpasspass2D(*)
pass2Hpasspass
Xall pass
The first decision is the opening lead. Which card do you start with? The choices are ♠9, ♥10, ♦6. Club is not my choice with this holding. I chosed to start with with ♦6, declarer play the ♦Q, partner played low. Next comes the the ♣9. You win with ♣J. What next? This card will determine your team success. If you find the correct card, then your team at least will be in the second, you will be the 5th otherwise.
Dummy
♠ A J 8 2
♥ Q 8 72
♦ J107
You
♠ K1095
♥ KJ105
♦ 85
♣ A
What will play next? Spade? Heart? or another diamond? Let's make some calculation. What inference do you get with the way declarer handle the contract? It seems that declarer does not have 2 honors in club along with ♦A. Then, partner hold the ♦K. So, partner already shown ♦K with either ♣Q or ♣K. The missing honors are ♥A and ♠Q. Which one is in partner hand? If he just has ♠Q, partner will not double in balancing position. So partner must have the ♥A doubleton or singleton. As he bid 1NT, most probably he had 2 cards in heart. So, you have a double dummy defense now to beat the contract. What card will you return?
Dummy
♠ A J 8 2
♥ Q 8 7 2
♦ QJ10 7
♣ 9
WestEast
♠ K1095♠ 7 6 3
♥ KJ105♥ A3
♦ 865♦ K93
♣ AJ♣ K8764
Declarer
♠ Q4
♥ 9 6 4
♦ A74
♣ Q10532
The best return is ♥J. If declarer cover, defender will play for 4 rounds of heart. So, declarer will only have 4 diamond tricks, 1 heart trick and 2 spade tricks, total 7. If declarer ducks in dummy, a second heart will be won by East (partner). East will return the diamond, declarer will win in dummy. A diamond to the Ace will win result in the following distribution.
Dummy
♠ A J 8 2
♥ Q 8
♦ 7
WestEast
♠ K1095♠ 7 6 3
♥ K 10
♦ -♦ -
♣ A♣ K876
Declarer
♠ Q4
♥ 9
♦ -
♣ Q1053
So far, declarer just had 3 diamond trick. He was in dilemma. If he ruffed a club, then play the last diamond, West will ruff and draw last trump. Although he was throw-in, declarer just collect 7 trick, 3 diamond, 1 club ruff and 2 spade trick. However, West should return ♠K!!! On the other hand, if declarer finesse spade and ruff the third round, ruff club, there is no entry to ruff another club. Either way will end with 7 tricks only. A very difficult defense. I failed to find the best defense, so our team was in 5th place.

Monday, August 11, 2008

Watch Out the Card Played on the First Trick

When a defender makes an opening lead, and dummy cards are displayed, you have to take a careful action in managing the contract. Inspect the dummy carefully and think for some times before playing the first card from dummy. In the following deal, you can elimate the guess if you play carefully for the first trick. Below is the bidding:
South West North East
1S pass 2D pass
2S pass 3S pass
4C pass 4NT pass
5S pass 6S all pass
West started with ♥7 and East suprises you with a ruff. Your contract is in danger when East return a club. Here are the complete distribution.
Dummy
♠A J
♥A J 10 5
♦A Q 10 4 2
♣J 3
West East
♠ 5 ♠10 7 6 3 
♥ K98753 ♥ void 
♦ J62 ♦ K9843 
♣ K75 ♣ Q984
Selatan
♠ KQ9842
♥Q 4 2
♦ void
♣ A1062
Several declarers will play the Ace on club return and play a spade to Jack followed by a small diamond ruff. Then play a second trump to dummy. When West discard his heart, declarer then assumes West is 1633. So he plays the ♦A and he has to assume that is West holding in the diamond, Jack or King. Declarer has to assume West hold an honour in diamond in order to fulfill the contract. As the cards lie, if he choose to play the ♦Q, pinning the Jack, he will succeed. He will fail otherwise. Did you notice that declarer can easily land the contract as long as he throw his ♥Q on the first trick. So, he may ruff a second diamond, draw trumps and use his heart entry to play the ♦A. When ♦J appears, he can finnese East King. So, be careful with your card play on the first trick. If declarer fail to unblock the ♥Q, West can refuse to cover the Queen. Then, declarer will be short of entry to play the diamond.

Sunday, August 10, 2008

Second Hand High

One of the basic lesson in bridge defense is to play second hand low. However, bridge is a game with full of exceptions. This is why bridge become an interesting game. Frequently, you have to play in a different manner, as in the diagram below. At love all, the bidding is as below:
WestNorthEastSouth
1Dpass1S2H
X2Spass4H
allpass
West started with ♠5 and declarer immediately play ♠J which held the trick. Declarer then play the spade to the King at the second trick. At trick 3, he continues with ♥2, plan your defence!
Dummy
♠ A J 8 2
♥ A J 5
♦ 10 9 7
♣ 8 6 3
You
♠ Q95
♥ K5
♦ AJ62
♣ K975
If you play according to the rule second hand low, you give a chance for declare to fulfill their contract. Below are the complete distribution.
Dummy
♠A J 8 2
♥A J 5
♦10 9 7
♣8 6 3
WestEast
♠ Q95♠ 10 7 6 3
♥ K5♥ Q8
♦ AJ62♦ Q843
♣ K975♣ J104
Declarer
♠ K4
♥10 9 7 4 3 2
♦ K5
♣ AQ2
Declarer will play the Ace, cash the ♠A, then exit with the heart, throw you in. So, before playing any card you have, please take several considerations!!!.

Tuesday, July 22, 2008

SUPER 1NT

Board 7 (Dealer: S, Vul: all) from mixed pair 17th Indonesian National Games leaved a good story. Let's see them all.
North
♠ Q J 6 2
♥ K 6 3
♦ Q 9 4
♣ Q J 9
West East
♠ K 874 ♠ 10 9 5
♥ Q 7 2 ♥ 9 4
♦ K 8 7 ♦ A J 2
♣ A 7 2 ♣ K 10 8 6 4
Declarer
♠ A 3
♥ A J 10 8 5
♦ 10 6 5 3
♣ 5 3
After South pass, West open a weak (12-14) 1NT and play there. This contract is very superior as it can't be beaten!. As seen in the vugraph, North started with ♠2 and South won with the Ace. He switched to ♥10. The critical point is in this trick. West should cover this and save the contract. If South cashes 5 times hearts, then it will squeeze North in spade and club. Please look at the position after 6 tricks below.
North
♠ Q J
♥ -
♦ Q 9
♣ Q J 9
West East
♠ K 8 ♠ 5
♥ - ♥ -
♦ K 8 ♦ A J 2
♣ A 7 2 ♣ K 10 8
Declarer
♠ 3
♥ -
♦ 10 6 5 3
♣ 5 3
Now, South returns a spade. West wins and plays 3 times diamond and West discards his small club. North is being squeezed. Spade discard will make declarer home, while club discards will have the same effect. The interesting point: Is it possible to beat the contract? The contract will be beaten if West fail to cover the ♥10. South will return &spades and declarer only has 6 tricks. If West cover with ♥Q, North is entryless. For instance, after winning with ♥K, North play ♠Q. West won and play the heart to 9 to rectify the count. South club returned won in West hand to play another heart. Now if South cashes his remaining hearts, the similar position as above happened. If South switch, then South can revert back to club for his 7th trick.

Tuesday, June 24, 2008

Be Careful with Signalling card

The Six of Diamond On the quarter final of National Club Championship 2006 in Point Square Jakarta, Geologi as a dependent champion meet Djarum Semarang. Djarum consists of Franky Karwur - Santje Panelewen and Supeno-Anhar Haitani. We bet them just 1 imp after loosing 16 imps on first 10 boards, 13-29. One imp that we collected is from the following board.
Dummy
♠ 876
♥ K8
♦ KJ54
♣ J1065
West East
♠ Q543 ♠ KJ2
♥ J3 ♥ Q109765
♦ 10962 ♦ Q
♣ Q72 ♣ K93
Declarer
♠ A109
♥ A42
♦ A873
♣ A84
South open 1NT, when North invites with 2NT, South rejects and plays there. West leads Spade. After hold up spade for 1 round, I play the ♦A, West in order to give signal to his partner, play the ♦6. When East drops his Queen, declarer then collected 4 tricks in diamond. Not only that, declarer managed to collect 9 trick by running the ♣J from dummy. East is the victim of the squeeze in club and heart. -- Jakarta, 3 July 2006

Monday, June 2, 2008

Percentage Play in Grand (2)

I found another grand slam board in the local game. I arrived in the grandslam with the following auction:
NorthEastSouthWest
1H2S3Cpass
3Spass3NTpass
4Cpass4Dpass
4NT pass5NTpass
7C passpasspass
West started with ♦K, plan your play!.
Dummy
♠ J85
♥ AKQ972
♦ void
♣ A765
Declarer
♠ A43
♥ 10
♦ A987
♣ KQ964
How do you proceed? Below are the choice: -Finesse heart, but I think no one will choose this as its percentage is only 50%. -Ruff out the diamond 3 times, but you sort of entries to do this. -Draw trumps, if 2-2, then you ruff out heart to establish it. 4 heart tricks will bring you home. -Draw trumps, if 3-1, then you have to pray to get 5 tricks heart. There is a small variation, when the trumps divide 3-1, when you are in the South, you can finesse the heart. You have better percentage if East had 3 trumps (vacant places). If, West who has long spade, then you have to pray that heart no worse than 4-2. I failed to bring home the contract when trumps divide 3(west)-1(east) and west has 5 heart to the Jack and East has a singleton ♥8. Anyway I have executed the best percentage play.