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Funbridge Conventions Card

5 cards Major weak 2  -  ACOL system  -  American standard (SAYC)  -  Polish system
Specificity of the WBridge5 engine


5 cards Major weak 2

SYSTEM SUMMARY : BASIC PRINCIPLES
5-CARD MAJOR - Best minor (4 Spade 3 Heart 3 Diamond 3 Clubs open 1 Clubs ; 4 Spade 4 Heart 3 Diamond 2 Clubs open 1 Diamond ; 4 Spade 1 Heart 4 Diamond 4 Clubs open 1 Diamond
1NT : 15-17 balanced hand with no 5-card major
2 Clubs : Strong artificial, balanced 22-23Hcp, 7 Clubs/Diamond 18-22Hcp or 5 Heart/Spade with 18-22Hcp
2 Diamond : Game forcing, 24Hcp any distribution or 17Hcp with at least 9 tricks.
2 Heart, 2 Spade : weak 6 cards, 6-10Hcp
 
The software doesn't play those conventions : 2NT showing fit after 1 major, 2 Clubs Landy, Truscott, 4th suit forcing, 2 Clubs Drury.
 
In response, a jump in a new suit shows a very good suit with 16+HCP, after pass it shows a maximum hand (9-11) with 5 cards in the suit and 4 in the opening suit.
 
After a 1 Heart or 1 Spade response, 3NT by the opener shows 18-19 balanced with 4 cards in the major response.
 
A big jump in a new suit is a splinter : showing shortness and a big fit in your suit.
 
The sequence 1 Spade 2 Clubs
                   2 Spade 3 Spade is non forcing
 
Michael's cue -bid : the cue-bid shows the 2 highest suits and 2NT shows the 2 lowest suits.
 
The answers to the 2 Clubscheckback stayman : (After opener bids 1NT and responder 2 Clubs)
2 Diamond : minimum without 3 cards in the major
2 Heart : 3 cards in the major, maximum if partenair bids 1 Spade, else minimum
2 Spade : 3 cards in the major, minimum if partenair bids 1 Spade, else maximum
2SA : maximum without 3 cards in the major
 
After 1NT opening, if the partner bids 2 Clubs, the following is :
If opener bids 2 Diamond : 2 Heart and 2 Spade are invitationnal with 5 cards, 3 Heart and 3 Spade are forcing with 5 cards and 4 cards in the other major.
If opener bids 2 Heart : 3 Heart is invitationnal, 3 Spade is slam try with Heart fit.
If opener bids 2 Spade : 3 Spade is invitationnal, 3 Heart is slam try with Spade fit.
If opener bids 2NT : 3 Heart and 3 Spade are invitationnal, 4 Heart and 4 Spade are to play, 4 Clubs and 4 Diamond are double transfert, 3 Clubs and 3 Diamond are showing slam try in Heart and Spade
 

PREEMPTIVE BIDS
3NT : Gambling, 7-card solid minor suit with no external tenace
3 Clubs, 3 Diamond, 3 Heart, 3 Spade : Standard Preemptive Bid - good 7-card suit with no opening value, 4 Clubs/4 Diamond : 7+ solid Heart/Spade

SPECIAL DOUBLES
Negative Double on any opponents' openining except 1NT
Take out Double up to 2 Spade
1 Clubs - 1 Diamond - Double : precisely 4 cards in Heart
1 Clubs/Diamond - 1 Heart - Double : precisely 4 card in Spade

OVERCALLS
Style : natural, limited to 17/18 HCP
At least five cards for a level-1 overcall and six cards for a level-2 overcall
Negative Double with an opening bid value and tolerance in other suits, or at least 18 points, with any distribution.
Jump overcalls : preempts
Overcalls on 1NT : Natural
Michael's cue -bid : the cue-bid shows the 2 highest suits and 2NT shows the 2 lowest suits.

OPENING LEAD : STYLE
  Opening Lead In the partner's suit
Suit
3rd and 5th
3rd and 5th
NT
4th Best
4th Best
Subsequent leads in NT : Low from an honnor, 4th best attitude
 
Discards are also 3rd / 5th most of the time in a suit you doesn't want.

SLAM BIDS AND CONVENTIONS
4NT Blackwood asking for Aces : 3/0 - 4/1 - 2 then 5NT asking for Kings : 3/0 - 4/1 - 2
Sometimes 1st or 2nd rank tenace

DETAIL OF THE DIFFERENT BIDS
Bids
Description
Responses
Points
Number of cards
Description
Pass
0-11
****
No points
  
1 Clubs
12-23
3 or more
Natural
 Natural. 2 Diamond, 2 Heart, 2 Spade = strong
1 Diamond
12-23
3 or more
Natural
 Natural. 2 Heart, 2 Spade, 3 Clubs = strong
1 Heart
12-23
5 or more
Natural
 Natural. 2 Spade, 3 Clubs, 3 Diamond = strong
1 Spade
12-23
5 or more
Natural
 Natural. 3 Clubs, 3 Diamond, 3 Heart = strong
1NT
15-17
At least 2 in each suit
No 5-card Major

2 Clubs Stayman
2 Diamond, 2 Heart, 2 Spade, 3 Clubs = Jacoby Transfer
3 Diamond, 3 Heart, 3 Spade = Natural and Strong
4 Diamond = Average 5/5 Major
2 Clubs
18-23
****

Strong :

  • 18-22 with 6 Heart, 6 Spade, 7 Clubs or 7 Diamond
  • 21-23 with 5 Heart or 5 Spade
  • balanced 22-23
 2 Diamond mandatory relay asking for partner's distribution.
2 Diamond
24
****
  • 24 points or more.
  • 9 tricks in major and 16 HCP or more
  • 10 tricks in minor and 16 HCP or more
 2 Heart = No Ace and less than 8 points, maximum 1 king
2 Spade = Heart Ace or Spade Ace
2NT = At least 8 points or 2 kings
3 Clubs = Clubs Ace
3 Diamond = Diamond Ace
3NT = 2 Aces
2 Heart
6-10
Precisely 6
At least 2 high-cards in the suit
 Natural, 2NT strong relay
2 Spade
6-10
Precisely 6
At least 2 high-cards in the suit
 Natural, 2NT strong relay
2NT
20-21
At least 2 in each suit
No five-card major
 3 Clubs Stayman
3 Diamond, 3 Heart, 3 Spade, 4 Clubs = Jacoby Transfer
4 Diamond = Average 5/5 Major
4 , 4 Spade, 5 Clubs, 5 Diamond = Natural average hand
3 Clubs
6-10
Precisely 7
At least 2 high-cards in the suit
 Natural
3 Diamond
6-10
Precisely 7
At least 2 high-cards in the suit
 Natural
3 Heart
6-10
Precisely 7
At least 2 high-cards in the suit
 Natural
3 Spade
6-10
Precisely 7
At least 2 high-cards in the suit
 Natural
3NT
9-12
Precisely
7 Clubs or 7 Diamond
A 7-card minor headed with AKQ
 4 Clubs to escape to the partner's minor
5 Clubs to bid the game in the partner's minor
4 Clubs
6-10
At least 7
At least 2 high-cards in the suit
 Natural
4 Diamond
6-10
At least 7
At least 2 high-cards in the suit
 Natural
4 Heart
6-10
At least 7
At least 2 high-cards in the suit
 Natural
4 Spade
6-10
At least 7
At least 2 high-cards in the suit
 Natural
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