INTRODUCTION
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Weak Opening System
by
Marcel den Broeder
complete schemes: Openings 1/2nd pos.: Sl'-S'-Tab
Suggested
defence for
opponents
Nomenclature Notation
Balanced
[Pass]
1
1
Spiral Sc. WOS links playing on line
Singl./void Delta
1-2
2
2/3
Exclusion our overcall literature / © downloads
Singl./void Extreme    
tools
others hum overcall bid examples interactive

In 1st/2nd seat Openings we use the special double-transfer balanced scheme AND in openings after Pass with 6-11 points:
- in sequence: [Pass] - [1] - [1] - and then 1/2 openings = 6-11 points
- in sequence: [Pass] - [1] - [1] - and then 1/3 = 6-11 points and the 1 opening (as if there were given a [1] relay)

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In all other cases (13+ opposite 12+) the main/standard scheme for which the diviation for the distribution types is:
- 4333,4432
- each suit 5332,5422, 6322 (so no specification for 5332 poor/good suit)
- 7222 with indication poor/good suit or closed with indication of the side values
In general:
- 2 bid = Majors, or 4333,4432, or 7222 poor suit, or 7222 closed with minimum side values
- 2 bid = minors, or 7222 good suit, or 7222 closed with maximum side values
In ++ or + opposite ++ and others same principle.

next step is asking for explanation of the 2 and 2 bids
- 4333/4432 with 2
hearts
- suit or heartssuit with the lowest bid (= without indication on purpose of which distribution)
- suit or heartssuit with the 2 next lowest bids (a bit more information - 5332/5422 or 6322, but no indication exact distribution)
- the 7222 with 3-3 directly
so R is not obliged to ask for exact distribution for the 4333-6322 shapes (bid game, stopper asking, asking for a 3card support, special spiral scan)

in case of distribution asking

4333 4333/4432 2hearts /3hearts
type self known with the bid of 2hearts( so 2 relays possible)
5332 3 including 5422 with the lowest 4 card
5422 3 the two highest 4cards only
6322 3-3 (or eventually 3-3)

(go to explanation of the Balanced set-tup through the whole system)

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Let's start with the double transfer scheme
with its own structure and answers in the 1st/2nd seat or 6-11 balanced after Pass

BALANCED through Double Transfers(1st/2nd seat Openings AND in openings with 6-11p. after Pass
opening
suit
description
1heart opening
? 4333
4432
5332 and poor clubs
5332 and poor clubs
5332 and poor clubs
5422
5332 and poor clubs
5422
1spade opening
club suit
5332 and good clubs
5422
6322
1no trump
diamond suit
5332 and good diamonds
5422
6322
2clubs
heart suit
5332 and good hearts
6322
2diamonds 5332 and good spades
6322
2diamonds
?
any 7222

(good= up to you: 2 of 3 Tophon. òr if you wish 3 of 5,
I prefer 2/3 regarding better slem investigation)

sequence of 1st/2nd seat opening

1 - ? 1 = 8-12 4333,4432, any 5332( poor suit), 5M422
Bid HCP Description
PASS 0-7/8 further bidding see: after interference
[1spade] 13+
relay
1no trump 7/8-13 balanced
or 55m21
2=5c or play it as 54 in the Majors
2=5c or play it as 44 in the Majors
2 8-13 at least 5c
2clubs 8-13 at least 5c
2clubs 8-13 at least 5c
2clubs 8-13 at least 5c
2clubs] 6-9/10-12 5/5 minors or Majors (minors 5530 only) Pointrange 55 : depends on vulnerable / HCP placing
3 7-12 at least 6c and at least an Ace or a King in the 6 card (not solid)
3clubs 7-12 at least 6c and at least an Ace or a King in the 6 card (not solid)
3clubs 7-12 at least 6c and at least an Ace or a King in the 6 card (not solid)
3clubs 7-12 at least 6c and at least an Ace or a King in the 6 card (not solid)
3clubs 12 any solid 1-suiter + a side King



1 - [1spade]  
?    
Bid HCP Description
1spade 8-10 5332 hearts or hearts and suit is poor
4333, 4432
2

8-10

11-12
11-12
11-12

5hearts332 and poor suit
5hearts422
4333 good quality but without extra (extra filling, uncovered Jack etc.) So you can end in 2hearts= to play
4432 poor quality
5hearts332 and poor suit
2clubs

8-10

11-12

5hearts332 and poor suit
5hearts422
5hearts332 and poor suit
2clubs 11-12 4432 good quality OR 4333 good quality with extra filling (tenance, uncovered Jack etc.)
2clubs 11-12 5hearts332 and poor suit
5hearts422
2hearts 11-12 4333 poor quality So R may decide to Pass
3 11-12 5hearts332 and poor suit or 5hearts4hearts22
3clubs 11-12 5hearts422 and 4 cards in the two highest suits

go to further sequences


1 -
?
1 = 8-12 5hearts332 (good suit), 5hearts422 or 6hearts322
Bid
HCP
Description
PASS 0-7/8 2-5+ card spade (could be safe gambling hoping for a balancing or a Double for correction inor )
[1no trump] 13+ relay ( if less then fitting with a s/v and no barrage!)
2 0-11 at least 2c
2clubs 8-13 at least 5c
2clubs 8-13 at least 5c
2clubs 8/9-13 at least 5c
2 12-14 invitation and non forcing
3 7-12 fit, weak invitation
3 7-12 at least 6c
3 7-12 at least 6c
3 7-12 at least 6c
3   to play

For these openings (1- 2hearts) following 'rule' in case of a Relay:

- 1st. step = minimum for the given distribution types and for the 6322 distribution with the indication of a poor suit
(- 2nd3rd step = for the minors: indication 5m4M22)
- next step maximum all but 6322 poor suit,
( if in case there is no bidding space letf for exact distrubution asking aftrwards use 2 bids -highest is 6332-)
- next step is a minimum 6322 but with good suit
- next step(s) is/are a maximum 6322 with good suit
- 6322 closed in all suits bidable, but for and only with description of the exact sidevalues

Because of priority to indicate if the 6322 suit is of good or poor quality (so you will be able, knowing the pointrange, to set the best contract) the answer-scheme is not uniform. (you can't have all).

1 - [1spade]  
?    
Bid HCP Description
2spade 8-10 5hearts332 and good suit or
5hearts4hearts22
6hearts322 and poor suit
2

8-10

5hearts4hearts22
2clubs

11-12

5hearts332 and good suit or 6hearts322 with poor suit or 5hearts422
2clubs 8-10 5hearts4hearts22
2clubs 8-10 6hearts322 and good suit
3spade 11-12 6hearts322 and good suit
3clubs 9-12 6hearts3clubs22 closed if clubs will be the contract R will be declarer in his way
3clubs 9-12 6hearts3clubs22 closed if clubs will be the contract R will be declarer in his way
3clubs 9-12 6hearts3clubs22 closed no side Queen or King
3clubs 11-12 6hearts3clubs22 closed with a side Queen or King


go to
further sequences

 

1 -
?
1 = 8-12 5hearts332 (good suit), 5hearts422 or 6hearts322
Bid
HCP
Description
PASS 0--11 best contract presumable with 8-11, or if weak then own suit and s/v clubs
[2] 13+ relay ( if less then fitting with a s/v and no barrage!)
2clubs 0-11 at least 2c
2clubs 8-13 at least 5c
2clubs 8-13 at least 5c
2 12-14 invitation and non forcing
3 7-12 at least 6c
3 7-12 fit, weak invitational
3 7-12 at least 6c
3 7-12 at least 6c
3   to play

1 - [2spade]  
?    
Bid HCP Description
2spade 8-10 5hearts332 and good suit or
5hearts4hearts22
6hearts322 and poor suit
2

8-10

5hearts4hearts22
2clubs

8-10

5hearts4hearts22
2clubs 11-12 5hearts332 and good suit or 5hearts422
3clubs 8-10 6hearts322 and good suit
3clubs 11-12 6hearts322 and poor suit
3clubs 11-12 6hearts322 and good suit
3clubs 9-12 ‹‹ 2263 ›› and closed suit
3clubs 9-12 ‹‹ 2362 ›› and closed suit
4clubs 9s-12 ‹‹ 3262 ›› and closed suit

go to further sequences

 

2 -
?
2 = 8-12 5hearts332 (good suit), or 6hearts322
Bid
HCP
Description
PASS 0-9 at least 5c or if weak then own suit and s/v clubs
[2] 13+ relay (if 9-12p. then well fitting and s/v shape s/v òr if through avoid bidding - see2} bid- s/v )
2clubs 0-11 at least 2c
2clubs 8-13 at least 5c
2} 9-12 well fitting and a s/v 3} 3= s/v , 3= s/v
OR to avoid Lead/teak out X: 3= s/v , 3= s/v
3 7-12 at least 6c
3 7-12 at least 6c (or 9-12 s/v and 5c)
3 7-12 fit, weak invitational (if s/v and 9-12 then)
3 7-12 at least 6c
3   to play

2 - [2spade]  
?    
Bid HCP Description
2spade 8-10 5hearts332 and good suit or
6hearts322 and poor suit
2clubs

11-12

5hearts332 and good suit or 6hearts322 with poor suit
2clubs 8-10 6hearts322 and good suit
3clubs 11-12 6hearts322 and good suit
3clubs 9-12 6hearts322 solid and no 3card other Major with or without side Queen
3clubs 11-12 6hearts3clubs22 solid with side Queen
3clubs 12 6hearts3clubs22 solid with side King
3clubs 12 6hearts322 solid and no 3card clubs with side King

go to further sequences

 

2 -
?
2 = 8-12 5hearts332 (good suit), or 6hearts322
Bid
HCP
Description
PASS 0-9 at least 5c or if weak then own suit and s/v clubs
[2] 13+ relay
2clubs 0-11 at least 2c
2} 9-12 well fitting and a s/v 3} 3= s/v , 3= s/v , 3= s/v
OR to avoid lead/take out X:
3= s/v , 3= s/v , 3= s/v
3 7-12 at least 6c (or 9-12 s/v and 5c)
3 7-12 at least 6c
3 7-12 at least 6c (or 9-12 s/v and 5c)
3 7-12 fit, weak invitational (no s/v if 9-12)
3   to play

2 - [2spade]  
?    
Bid HCP Description
2spade 8-10 5hearts332 and 2 toph./3
6hearts322 and no 2 toph./3
2clubs

11-12

5hearts332 and 2 toph./3
OR 6hearts322 no 2 toph./3
OR solid 6hearts3m22 with side Q or K
3clubs 8-10
9-10
6hearts322 and 2 toph./3
OR solid 6hearts3m22 with no side Q or K
3clubs 11-12 6hearts322 and 2 toph./3
3clubs 9-10 solid 6hearts3clubs22 no side Q or K
3clubs 11-12 solid 6hearts3clubs22 with side Q
3clubs 11-12 solid 6hearts3clubs22 with side K

go to further sequences

 

2 -
?
2 = 8-12 any 7222, can be closed too (vul / n : with min. ànd poor suit open as a 6322)
Bid
HCP
Description
PASS 0-7 at least 6c and a singleton/void any
[2] 12+ relay
2clubs] 0+ at least 2card in each suit (can be strong), tactically. f.e. to avoid a Double on the relay
or if you want that opener will play the contract
3 7-12 at least 6c singleton/void in
3 7-12 at least 6c singleton/void in
3 7-12 at least 6c singleton/void in
3 7-12 at least 6c singleton/void in
3] preempt. bid your 7 card
4 preempt to play
4 preempt to play
4 + or preempt to play, can be strong(er) (to avoid take outs)
4 + or preemp to play, can be strong(er) (to avoid take outs)
4] preempt. bid your 7 card
5 preempt to play
5 preempt to play
5 preempt to play
5 preempt to play

2 - [2spade]  
?    
Bid HCP Description
2spade 8 -12
11-12
11-12
7222
7222
any 7222 closed with a side Queen
3clubs

8 -10
11-12

7222
7222
3clubs 8 -10
11-12
7222
7222
3clubs 8-10 7222
3clubs 9-12 any 7222 closed and no side Queen or King
3clubs 12 any 7222 closed with a side King