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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

Openings up to 2NT

High Card points (HCP) can include Length points in suit openings

1 ♣ 13-21 HCP and either no biddable suit or Clubs the only one such
1 13-21 HCP and more than 3 Diamonds. If the Better Minor optional convention is implemented the suit may contain only 3 Diamonds when the distribution is 4432
  1 , 1 ♠ 13-21 HCP and at least 5 cards in the suit opened
1NT From 12-14 HCP up to 16-18 HCP (the level is optional), no 5-card major, no singleton, no 6-card minor. With a balanced hand too strong to open 1NT, and too weak to open 2NT, open 1 of a minor and jump in NT on the next round. You can opt to open with a 5-card major suit and 5332 distribution, or even with a 6-card minor and 6322
2 ♣ Requires more than 22 HCP, can be void in Clubs
2 , 2, 2 ♠ 21-22 HCP and at least a 5-card suit. Alternatively some or all of these openings can be played as weak
2NT 20-22 HCP, no 5-card major, no singleton, no 6-card minor