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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 an opening 1NT

2 ♣ Stayman with a 4-card major and at least 8HCP
2 Jacoby transfer with at least 5 Hearts. Opener rebids 2 , responder passes next time round with less than 8HCP
2 Jacoby transfer with at least 5 Spades. Opener rebids 2 ♠, responder passes next time round with less than 8HCP
2NT Respond 2NT when you have a balanced hand (no singleton) and your HCP, added to the maximum of the opener's range, sums up to just 24
3 ♣ Transfer to 3
3 With a previously passed hand with at least 8HCP, shows a 4-4-1-4 or 4-4-0-5 distribution with the shortness in Diamonds
3 Shows 5 Hearts and at least 15 total points - a slam try with a suit fit. With a previously passed hand with at least 8HCP, shows a 4-1-4-4 or 4-0-4-5 distribution with the shortness in Hearts
3 ♠ Shows 5 Spades and at least 15 total points - a slam try with a suit fit. With a previously passed hand with at least 8HCP, shows a 1-4-4-4 or 0-4-4-5 distribution with the shortness in Spades
3NT Respond 3NT when you have a balanced hand (no singleton) and your HCP, added to the minimum of the opener's range, sums up to at least 24
4 ♣ Gerber if implemented
Shows two 5-card majors and at least 8HCP
4 ♠ Shows two 5-card minors and at least 8HCP
4NT Respond 4NT when you have a balanced hand (no singleton) and your HCP, added to the maximum of the opener's range, sums up to just 33

The Jacoby Minor optional convention

2 ♠ At least 6 Clubs and less than 8 HCP. Opener rebids 3 ♣ and responder passes
At least 6 Clubs, a singleton or void and at least 8 HCP. Opener rebids 3 ♣. Responder shows where the shortage lies by bidding as follows:
  • 3 with a shortage in Spades
  • 3 ♠ with a shortage in Hearts
  • 3NT with a shortage in the other minor
3 ♣ At least 6 Diamonds and less than 8 HCP. Opener rebids 3 and responder passes
At least 6 Diamonds, a singleton or void  and at least 8 HCP. Opener rebids 3 . Responder shows where the shortage lies as for the 2 ♠ bid above