NBB - Dutch Bridge Federation

Dutch First Division Imps Teams

Utrecht, André Boekhorst Center

October 13, 2001

Round 12, Boards 13-16

Board 13
N/All


WEST		 NORTH
ª K 8
© J 7
¨ Q 9 8 3
§ A K 9 7 6



EAST
ª T 7
© 9 8 4
¨ A K T 6 5 2
§ Q 8


SOUTH		 ª A 3 2
© A K T 2
¨ 7 4
§ J T 3 2
ª Q J 9 6 5 4
© Q 6 5 3
¨ J
§ 5 4

NS score

Freq

imps NS

imps EW

500

1

9

-9

200

2

3

-3

140

5

2

-2

110

6

1

-1

100

6

1

-1

-100

4

-5

5

-110

1

-5

5

-200

1

-7

7

Mean NS score =

80

Recommended bidding sequence:

West North East South
--- 1§ pass 1ª
2¨ pass pass 2ª
pass pass pass.

1ª = In Walsh Approach, South frequently bypasses 4+ ¨-suits, so North must alert.
Pass = East has little to offer in spades and diamonds, and is not that strong, so he takes it easy.

More discussion to follow.

Board 14
E/-


WEST		 NORTH
ª A K 7 6 2
© Q T 6 2
¨ Q
§ J 3 2



EAST
ª 8 5 4
© 8 5
¨ A 2
§ K 9 8 6 5 4


SOUTH		 ª J 3
© K 9 3
¨ J 8 5 3
§ A Q T 7
ª Q T 9
© A J 7 4
¨ K T 9 7 6 4
§ - - -

NS score

Freq

imps NS

imps EW

510

1

2

-2

500

1

2

-2

480

6

1

-1

450

13

0

0

420

1

-1

1

400

1

-2

2

200

1

-6

6

150

1

-7

7

50

1

-9

9

Mean NS score =

450

Recommended bidding sequence:

West North East South
--- --- pass pass
pass 1ª 1NT dbl
3§ pass pass 4§
pass 4© pass pass
pass.

1NT = This particular Unsual 1NT can be made on 4-4 in the minors. East does not want 2© for a response.
Dbl = Negative. A penalty double is less useful here, since EW are most unlikely to stay in 1NT. East does not want to invite on 3-card support yet, and East's last call gives him lots of reasons to search for the 4-4 fit in hearts.
3§ = Preemptive.
Pass = Not strong enough to bid 3© now.
4§ = Asking North to bid a major. South passed at his first turn to call, so he can hardly have interest in slam. 3© is also forcing, but shows a 5+ suit. If South has 5+ hearts and 8-11 hcp (or 6-10, as an alternative range used by some Dutch experts), he will bid 2© over the Unusual 1NT, just as if East has bid 2§ or 2¨ instead. If South has only 4 hearts, and still wants to invite to game over 3§, he may double again.

More discussion to follow.

Board 15
N/NS


WEST		 NORTH
ª Q 6 5
© A 9 7 5 3
¨ J 9 4
§ J 5



EAST
ª A K J
© Q T
¨ A T 6
§ A K 8 7 2


SOUTH		 ª T 9 7 3 2
© K J 4
¨ 8 3
§ Q T 4
ª 8 4
© 8 6 2
¨ K Q 7 5 2
§ 9 6 3

NS score

Freq

imps NS

imps EW

50

2

10

-10

-420

10

1

-1

-450

11

0

0

-460

1

-1

1

-490

2

-2

2

Mean NS score =

-440

Recommended bidding sequence:

West North East South
--- --- --- pass
2NT pass 3© pass
3ª pass 3NT pass
4ª pass pass pass.

2NT = Balanced hand, 20-21 hcp. Trade ªK for ©Q, and West has a perfect upgrade to 2§-2¨-2NT.
3© = 5+ ©, 0+ hcp, the well known Jacóby Transfer.

More discussion to follow.

Board 16
W/EW


WEST		 NORTH
ª K J 9 8 7 2
© 9 4 3
¨ K Q 8 4
§ - - -



EAST
ª A 3
© A Q
¨ A J 2
§ A Q J 7 4 3


SOUTH		 ª Q
© K T 8 2
¨ T 9 5
§ T 9 6 5 2
ª T 6 5 4
© J 7 6 5
¨ 7 6 3
§ K 8

NS score

Freq

imps NS

imps EW

200

1

12

-12

100

3

11

-11

-100

3

8

-8

-300

4

4

-4

-600

4

-4

4

-620

2

-4

4

-660

2

-5

5

-690

4

-6

6

-720

1

-6

6

-1100

1

-12

12

-1370

1

-14

14

Mean NS score =

-460

Recommended bidding sequence:

West North East South
2¨ pass 2© pass
3§ pass 3© pass
3NT pass pass pass.

2¨ = Multi-colored, based on semiforcing in clubs.
Pass = Requires some discipline, but 2ª promises 5+ suit and 12-15 hcp. The vaste majority of experts objects to preempt over openings, that turn out to be preemptive themselves in at least 90% of the time.
2© = Signoff to weak-2 in hearts, possibly invitational to weak-2 in spades.
3§ = Semiforcing in clubs, i.e., 5+ suit and 20-22 hcp, or 8-9 playing tricks to make up for the lack of hcp strength. East may pass now with less than 4-5 hcp, but he will rather not pass with an ace.
3© = 4+ suit, forcing game.
3NT = Precisely 6§322, for with 5§332, he would open 2NT.

More discussion to follow.

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