PROBLEMS AND SOLUTIONS #4

By Larry Matheny

 

Here is another addition of Problems and Solutions.  As with the earlier lessons, I have selected problems that occur frequently and proposed a solution to them.  Let’s start with a problem involving trump quality.

 

1.   How good are our trumps?

 

Scoring: Matchpoints

Hand#1

Dlr

E

Vul

N-S

S

832

H

AK9875

D

AK10

C

A

S

 

H

 J1064

D

 Q53

C

 Q87654

http://northerncoloradobridge.com/images/pad.bmp

S

K654

H

2

D

J762

C

KJ103

 

S

AQJ1097

H

Q3

D

984

C

92

West

North

East

South

 

 

 Pass

2S

Pass

4NT

 Pass

 5C*

  Pass

    5D

   Pass

   6S

  Pass

  Pass

   Pass

 

                                                            *1 or 4 keycards

I was in the North chair and as soon as my partner opened 2S, my thoughts went to slam.  However, our weak-2 bids aren’t that structured so I was concerned about trump quality.  The answer could be found with Keycard Blackwood.  South’s 5C response showed one or four keycards so I knew we were missing one important card.  My 5D bid asked about the spade queen and his leap to 6S told me he held the lady but no outside king.  Without the queen, he would have bid 5S.

West lead a club and my partner quickly wrapped up thirteen tricks.  He led the spade eight from dummy and when that held trick, he continued with a small one to his hand.  He then went back to dummy with a diamond to repeat the spade finesse.  He discarded his losers on dummy’s heart suit after establishing the suit by ruffing the fourth round.

To realize the value of the convention, what would you have bid if South had denied the spade queen?  What if his suit was: AJ9754 or KJ10754?  Do you still want to be in slam?  Merely asking for aces or keycards is just not enough.

2.   How do I use Blackwood with my void?

 

Scoring: Matchpoints

Hand #2

Dlr

E

Vul

N-S

S

AK1095

H

QJ10876

D

 

C

K2

S

Q763

H

54

D

Q102

C

QJ98

http://northerncoloradobridge.com/images/pad.bmp

S

J842

H

3

D

AJ83

C

7654

 

S

 

H

AK92

D

K97654

C

A103

West

North

East

South

 

 

Pass

1D

Pass

1H

Pass

3H

Pass

    5D

  Pass

    6C

  Pass

    7H

  Pass

   Pass

  Pass

 

 

 

 

Here is another hand where North soon had slam ambitions.  South holding14high card points along with a void jumped to 3H.  North wanted to check for aces, however, regular Blackwood or even Roman Keycard would only tell him the number of aces/keycards, not which ones.  To solve this dilemma North jumped to 5D unleashing the rarely used Exclusion Blackwood convention.  This asked South for the number of keycards (aces plus the king of trumps) held outside of the diamond suit.   South's response showed 3 keycards and North confidently bid the grand slam.

North won the opening trump lead, cashed the ace and king of both black suits, and had a high cross-ruff for the rest of the tricks.  So many players routinely use Blackwood before bidding a slam. This is another example where asking for the number of aces would not help.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.  How good is my hand?

 

Scoring: IMPs

Hand #3

Dlr

N

Vul

Both

S

AK3

H

10542

D

109642

C

2

S

 J1087652

H

 A6

D

 

C

 9854

http://northerncoloradobridge.com/images/pad.bmp

S

 9

H

 3

D

 KQJ8753

C

 KJ106

 

S

Q4

H

KQJ987

D

A

C

AQ73

West

North

East

South

 

Pass

3D

4H

Pass

4NT

Pass

5D*

  Pass

    6H

  Pass

  Pass

  Pass

 

 

 

                                                              *0-3 keycards

While the 4-3-2-1 point count system most players use to evaluate their hands is useful, sometimes you have to look beyond it.  This hand is a good example of how big seven high card points can be.

 

After East's 3D preempt, South jumped to 4H.  A vulnerable overcall of 3H would show a good hand so the jump indicated a very strong hand.  North didn't hold many high card points but he had good heart support and controls in two of the outside suits.  He also knew his partner should be short in diamonds.  Realizing what a good dummy he had, he used Roman Keycard Blackwood to check for the keycards (four aces + heart king) and then bid the slam.

Declarer won the spade opening lead and knocked out the ace of trumps. He was later able to discard one club loser on the spade king and ruff the other two in dummy.  The North player at the other table passed the 4H bid saying "I only had seven points".

 

 

 

 

 

 

 

 

 

 

 

 

 

4.  Suit combinations 

 

Suit management is more than just taking a finesse.  You must be able to look at the entire hand and not just the suit you are about to play.   

 

Scoring: Matchpoints

Hand #4

Dlr

N

Vul

E-W

S

J1054

H

KQ7

D

QJ102

C

K6

S

9832

H

1053

D

A7

C

J1092

http://northerncoloradobridge.com/images/pad.bmp

S

K

H

J962

D

865

C

AQ743

 

S

AQ76

H

A84

D

K943

C

85

West

North

East

South

 

1D

Pass

1S

Pass

2S

Pass

4S

  Pass

   Pass

  Pass

 

 

 

 

 


West led the jack of clubs and declarer was in trouble.  The defenders took the first two club tricks followed by the ace of diamonds.  Declarer won the second diamond in dummy and had to find the king of spades in the East hand.  Obviously the spade finesse must be taken but what card should declarer lead from dummy?  The correct card should be a low spade to protect against the singleton king in the East hand. However, if there are no more entries to dummy, declarer must play a high spade to stay in the North hand if East fails to play the king.

In a local duplicate game, eight pairs reached the contract of 4S and four of them failed by one trick because they led a high spade from dummy.  That nine of spades is a valuable card.

 

 

 

 

 

 

 

 

 

 

5.  It’s Matchpoints!

 

Matchpoints (pairs) is a very different game.  Your goal isn't to just make or defeat a contract; rather you must strive for the largest plus or smallest minus possible. Sometimes you might even risk the contract.

 

Scoring: Matchpoints

 

Hand #5

Dlr

N

Vul

E-W

S

10543

H

864

D

J42

C

Q87

S

J97

H

532

D

K965

C

542

http://northerncoloradobridge.com/images/pad.bmp

S

Q82

H

9

D

Q873

C

AJ1096

 

S

AK6

H

AKQJ107

D

A10

C

K3

West

North

East

South

 

Pass

Pass

2C

Pass

2D

Pass

2H

  Pass

    3C*

  Pass

   3NT

  Pass

    4H

  Pass

  Pass

  Pass

 

 

 

                                                            * second negative

South had 9+ tricks in his hand so he offered 3NT but North sought the safety of a trump suit by bidding 4H.  West led a trump which declarer won this in his hand, noting that dummy's eight of hearts was now an entry to dummy.  South saw he only had three losers (1 spade, 1 diamond, and 1 club) so his contract was safe.  The opening lead disappointed him because he saw that a diamond lead would have presented him with an extra trick.  To make an overtrick, the opponents' spades would divide 3-3 only 36% of the time, but this seemed his best chance.  So he drew one more round of trumps and then played ace, king, and another spade.  He was rewarded when the spades behaved and he was able to enter dummy with the heart eight and discard his small diamond on the last spade.  He would have gone down in a cold contract if one of the opponents had a singleton (or void) in spades, but it was a slight risk.

At rubber bridge or in a team game, declarer should just draw trumps and claim ten tricks.  Declarer also made a note to discuss the 4H bid with his partner because those in 3NT would probably (perhaps not with a club lead) have the same play for eleven tricks. 

 

 

 

 

6.  A slam invitation after Stayman

 

 

Scoring: Matchpoints (Pairs Game)

Hand #6

Dlr

E

Vul

E/W

S

K732

H

K7642

D

AK

C

Q4

S

 106

H

 93

D

 QJ98

C

 KJ653

pad

S

 J854

H

 J10

D

 765

C

 10987

 

S

AQ9

H

AQ85

D

10432

C

A2

West

North

East

South

 

 

   Pass

  1NT

  Pass

   2C

   Pass

   2H

   Pass      4D*        Pass      6H

   Pass     Pass        Pass

 

*artificial

 

 

North’s hand was strong enough to invite slam but not insist upon it.  This N/S partnership has several agreements to show slam invitational sequences.  North’s bid of 4Dshowed a heart raise, a balanced or semi-balanced hand, and was invitational to slam.  South liked his hand rich with controls and accepted.

 

The play was easy with declarer eventually losing only a club trick.  While this is not necessarily a difficult hand to bid, several pairs reached the slam in notrump and were defeated.  They did not have an agreement that allowed them to invite slam in a suit contract.  Those who simply asked for aces or keycards after finding the heart fit would have been disappointed if the South hand was instead a minimum.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7.  Don’t give away your strength. 

 

A competent declarer will be watching and counting each defender’s hand so it pays to give away no more information than necessary.   



Scoring: Matchpoints

 

Hand #7

Dlr

N

Vul

N-S

S

65

H

KJ3

D

963

C

A10942

S

109873

H

 Q96

D

 KJ7

C 

 63

http://northerncoloradobridge.com/images/pad.bmp

S

 AKQ2

H 

 8

D

 Q10852

C

 875

 

S

J4

H

A107542

D

A4

C

KQJ

West

North

East

South

 

Pass

Pass

 1H

  Pass

   2H

  Pass

    3C

  Pass

   4C

  Pass

    4H

  Pass

   Pass

  Pass

 

 

West led the ten of spades won by East with the queen.  East next cashed the ace of spades and then switched to a low diamond.  Declarer won the ace and had to decide how to play the trump suit.  With no other information, declarer would play the top two honors but he stopped to recall the auction.  East has passed at his first opportunity and had shown up with the top three spade honors.  And, South realized if West held the top three diamond honors he would have led one.  This marked East with a diamond honor, probably the queen.  Armed with this information, declarer played the heart ace followed by a low heart to the jack.  He then was able to draw the last trump and make eleven tricks by discarding his diamond loser on the long club suit.

Note that East made it easy for declarer to place the high cards.  A better play would have been to win the first spade with the ace and then play the queen in an attempt to convince declarer the king was in the West hand.

 

 

 

 

 

 

 

 

 

8.  Don’t forget Gerber.


Scoring: Matchpoints (Pairs)

 

Hand #8

Dlr

N

Vul

E/W

S

A63

H

KQ6

D

J1098

C

KQJ

S

 10

H

 J109752

D

 2

C

 98763

http://northerncoloradobridge.com/images/pad.bmp

S

54

H

A43

D

A7653

C

1052

 

S

KQJ9872

H

8

D

KQ4

C

A4

West

North

East

South

 

1NT

Pass

 4C

   Pass

    4H

  Pass

    4S

   Pass

   Pass

  Pass

 


South was interested in slam as soon as he heard his partner's 1NT opening bid.  His leap to 4C was the Gerber convention asking for the number of aces.  The 4H response showed only one so South reluctantly signed off in game.

West led his singleton diamond and hit pay dirt when his partner won the ace.  East returned the seven of diamonds requesting a heart return (higher of the other two suits). West ruffed and East won the heart continuation but West had no more trumps so declarer scored up the game.  However, the interesting part is that many pairs who first bid their spade suit and then used Blackwood ended in 5S down one on the same defense.  Those unsuccessful pairs were certainly unlucky, but the South hand needs only to discover the number of aces and the Gerber convention was created for just that purpose.

The Gerber convention is generally used after a 1NT or 2NT opening bid.  It may also be used after a jump in NT.

 

 

 

 

 

 

 

 

 

9.  The takeout double can be dangerous.


Scoring: Matchpoints (Pairs)

Hand #9

Dlr

E

Vul

E/W

S

10653

H

1076

D

1043

C

854

S

AK

H

KQ85

D

AK8

C

J1072

http://northerncoloradobridge.com/images/pad.bmp

S

 2

H

 J932

D

 QJ7652

C

 63

 

S

QJ9874

H

A4

D

9

C

AKQ9

West

North

East

South

 

 

Pass

1S

   DBL

   3S*

  Pass

    4S

   DBL

  Pass

   5D

   DBL

   Pass

  Pass

  Pass

 

                                                            *preemptive

Holding a very powerful hand West made a takeout double of South's opening bid. Taking advantage of the favorable vulnerability, North made a weak jump raise.  South bid game hoping to make it if North held a spade honor plus he suspected E/W might have a game.  West couldn't stand it and doubled again this time hoping to defend.  However, East correctly read this bid as another takeout double and bid her diamond suit.  South doubled expecting to win three top tricks.

South quickly cashed two clubs and the ace of hearts.  In an auction like this, West must realize his second double is also for takeout.  It may seem wrong to pass and defend, but it was his last chance for a plus score.  

 

 

 

 

 

 

 

 

 

10.  Don’t forget to count.

 

In our youth one of our first lessons was learning to count.  It is sad that this simple skill is not used more often at the bridge table.  Here is a hand that shows just how important counting can be.

 

Scoring: Matchpoints (Pairs)

Hand#10

Dlr

E

Vul

N/S

S

AJ64

H

Q752

D

AJ10

C

QJ

S

Q92

H

864

D

Q765

C

1053

pad

S

K1085

H

10

D

982

C

AK764

 

S

73

H

AKJ93

D

K43

C

982

West

North

East

South

 

 

 Pass

  Pass

   Pass

   1NT

    2C

   3H

Pass

   4H

   Pass

  Pass

Pass

 

 

 

                                                           

West obediently led his partner’s suit and East continued with a third round forcing declarer to ruff in dummy.  Declarer saw he had a spade to lose, so to be successful he would have to find the queen of diamonds.  Rather than assume East who overcalled held the queen, declarer decided to find out more about the hand.  After ruffing the third club, declarer pulled trumps ending in his hand.  Next he led a small spade to dummy’s jack.  East won with the king and exited with another spade.  Declarer now knew the diamond queen was in the West hand because East would not have originally passed if he also held that card.

 

This simple bit of deduction was possible by using just a little math by way of a discovery play.