Sittard BC
Internal Championships Imps Pairs 2001
Session 04, Baandert, Sittard,
March 27, 2001
Group A, Boards 13-16
Copyright © 2001-2025 by Michel Franssen
Special thanks to Guillaume
Hermans and Scott
Smith
Board 13
N/All
WEST |
NORTH
ª Q T
© - - -
¨ K J T 4 3 2
§ A K T 8 5 |
EAST |
ª K J 9 8 6 3 2
© K 8 4
¨ 5
§ 7 6 |
SOUTH |
ª 7
© J 9 7 6 5 3
¨ 6
§ Q J 9 4 2 |
|
ª A 5 4
© A Q T 2
¨ A Q 9 8 7
§ 3 |
|
|
|
NS score |
Freq |
mp NS |
mp EW |
|
2140 |
1 |
14 |
-14 |
|
1390 |
3 |
7 |
-7 |
|
640 |
2 |
-10 |
10 |
|
-200 |
1 |
-15 |
15 |
|
|
|
|
|
|
NS |
avg = |
1090 |
|
|
|
Recommended bidding sequence:
| West |
North |
East |
South |
| --- |
1¨ |
pass |
1© |
| 2ª |
3§ |
pass |
3ª |
| pass |
4§ |
pass |
4¨ |
| pass |
4© |
pass |
4NT |
| pass |
5NT |
pass |
6§ |
| pass |
6¨ |
pass |
pass |
| pass. |
|
|
|
|
1© = North may only have 3 diamonds, so it's
wise to search for a 4-4 ©-fit.
2ª = West's spades are too bad for a vulnerable
preemptive jump overcall to 3ª, the more so,
because both opponents have bid (sandwich position).
3ª = Forcing game, and demanding more info.
4¨ = Establishes diamonds as trumps.
4© = First or second round control op hearts.
4NT = Roman KeyCard Blackwood for diamonds.
5NT = Even number of aces (2 or 4 out of 5), and some void.
6§ = §-control,
ultimatie try for grand slam.
6¨ = The void in South's 'first' suit, and the
possible threat in spades make 7¨ far from
frigid, so North should drop it right here.
More analysis to follow.
Board 14
E/-
WEST |
NORTH
ª A Q 6
© A J 9 6 5
¨ K Q
§ 9 8 5 |
EAST |
ª K 8 5
© K 3
¨ 9 7 5 4
§ K J 6 2 |
SOUTH |
ª J T 9 7
© T 8
¨ A T 8 3
§ 7 4 3 |
|
ª 4 3 2
© Q 7 4 2
¨ J 6 2
§ A Q T |
|
|
|
NS score |
Freq |
mp NS |
mp EW |
|
420 |
4 |
4 |
-4 |
|
170 |
1 |
-3 |
3 |
|
-50 |
2 |
-8 |
8 |
|
|
|
|
|
|
NS |
avg = |
280 |
|
|
|
Recommended bidding sequence:
| West |
North |
East |
South |
| --- |
--- |
pass |
pass |
| pass |
1NT |
pass |
2§ |
| pass |
2© |
pass |
3© |
| pass |
4© |
pass |
pass |
| pass. |
|
|
|
|
2§ = Stayman relay,
for which responder may not have a 4-card major, so opener must alert once again.
3© = Invitational. South downgrades a little
for his 4333-pattern.
More analysis to follow.
Board 15
S/NS
WEST |
NORTH
ª A K J 6 3
© T 8 5
¨ A 8
§ K 7 6 |
EAST |
ª Q 8 4
© K J 6 2
¨ J 4 3
§ Q 9 4 |
SOUTH |
ª T 9 7 2
© 9 7 4 3
¨ T 7 5
§ 8 2 |
|
ª 5
© A Q
¨ K Q 9 6 2
§ A J T 5 3 |
|
|
|
NS score |
Freq |
mp NS |
mp EW |
|
1470 |
1 |
10 |
-10 |
|
1440 |
1 |
10 |
-10 |
|
1370 |
1 |
9 |
-9 |
|
690 |
3 |
-7 |
7 |
|
-300 |
1 |
-15 |
15 |
|
|
|
|
|
|
NS |
avg = |
980 |
|
|
|
Recommended bidding sequence:
| West |
North |
East |
South |
| --- |
--- |
--- |
1¨ |
| pass |
1ª |
pass |
2§ |
| pass |
2© |
pass |
3§ |
| pass |
4§ |
pass |
4¨ |
| pass |
4ª |
pass |
4NT |
| pass |
5¨ |
pass |
5© |
| pass |
6§ |
pass |
pass |
| pass. |
|
|
|
|
2§ = South is a little short of forcing game
with 3§, the more so, because he holds a
singleton in North's suit.
2© = Fourth suit forcing,
demanding more info.
3§ = 4§
has several disadvantages. For instance, it bypasses 3NT, and it may become difficult for
North to establish § as trump suit, since 4¨ would designate ¨
as trumps, and RKCB would be risky without ©-control. In order to overcome problems like this, it's best to treat
fourth suit as forcing to game, except for the ambiguous sequence of 1§-1¨-1©-1ª.
4§ = Slamtry in clubs. Bypassing 3NT can't be
too harmful, first of all because 3NT is hardly an option with 3 small hearts, and
secondly, because we are not playing for overtricks in this type of game.
4¨ = First or second round control of diamonds.
4ª = ª-control,
denying ©-control at the same time.
4NT = RKCB for clubs.
5¨ = 0 or 3 out of 5 aces, 1403-variation.
5© = Asking for queen of trumps.
6§ = Denying queen of clubs (or common
possession of 10 or more trumps, in which case the enemy queen of trumps can be eliminated
in at least 78% of the time).
More analysis to follow.
Board 16
W/EW
WEST |
NORTH
ª 7
© T 8 7 6 2
¨ A 8 3
§ K T 9 5 |
EAST |
ª K 5 3 2
© Q J 9
¨ Q J
§ Q J 8 3 |
SOUTH |
ª Q 9 8
© K 5
¨ K T 7 6 4 2
§ 6 4 |
|
ª A J T 6 4
© A 4 3
¨ 9 5
§ A 7 2 |
|
|
|
NS score |
Freq |
mp NS |
mp EW |
|
200 |
1 |
3 |
-3 |
|
170 |
1 |
3 |
-3 |
|
110 |
1 |
1 |
-1 |
|
100 |
1 |
1 |
-1 |
|
80 |
1 |
0 |
0 |
|
-50 |
1 |
-4 |
4 |
|
-120 |
1 |
-5 |
5 |
|
|
|
|
|
|
NS |
avg = |
80 |
|
|
|
Recommended bidding sequence:
| West |
North |
East |
South |
| 1§ |
pass |
1¨ |
1ª |
| pass |
pass |
2¨ |
pass |
| pass |
pass. |
|
|
|
1¨ = Walsh approach:
denies 4-card major, unless responder is strong enough te reverse. Opener must alert, if
he has such agreement with responder.
More analysis to follow.
Go to
Boards 17-20