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Play bridge with Wbridge5!

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Wbridge5 Conventions
Available systems
Hand evaluations
Opening Bids
Up to 2NT
Pre-emptive
Responses to openings of: 
1 of a suit
1 NT
2 ♣
2 , 2, 2 ♠
2 NT
Responses to Stayman
Opener's rebids
Competitive bidding
Intervening bids
Doubles
The Sputnik double
Michael's cue-bid
Options
Optional conventions
The weak two
Suit agreement
Games and slams
Departures from the SEF

Responses to openings of 1 of a suit

The program treats 3-card support as a fit in a major suit

Points Suit fit Response
Honour & length Honour & distribution
Under 5  -  Pass
5 - 6 No Pass
5 - 9 Yes Raise to 2
10 Yes Raise to 2. If the opponents intervene, raise as cheaply as possible
11 - 12 Yes Raise to 3. If the opponents intervene, raise further if necessary
13 - 15 Yes Raise to 4. If the opponents intervene, raise further if necessary
16 plus Yes Jump in your second-best suit, or cue-bid if the opponents have intervened
7 - 11 No Bid a suit of at least  4 cards at the 1 level, or 1NT. The 1NT bid denies possession of a 4-card major, except that after 1 Spade responder could possess 4 or more Hearts
12 - 15 No Bid your best suit as cheaply as possible
16 plus No Jump in your best suit, or cue-bid if the opponents have intervened
11 - 12 No Bid 2NT with a balanced hand, no 4-card major and a stopper in any suit bid by the opponents.
13 - 15 No Bid 3NT with a balanced hand, no 4-card major and a stopper in any suit bid by the opponents.