Lesson 9 – LD Precision Club Bidding System
Review
Competitive Bidding (Opponents open the bidding)
(1X) - ?
1NT : 8-12 HCP, 3+ cards in unbid suits, alertable 1Y/2Y :10-15 HCP, 5+ suit Double : either 13-15 HCP with 3+ cards in unbid suits 13-15 HCP, balanced with stopper in opponents suit NT systems on 16+ HCP and will rebid new suit Weak Jump Overcalls (WJO) in D/H/S 6-10 HCP, 6+ cards in suit 2X (cue bid) : <11 HCP, 5/5 in top 2 unbid suits 2NT : <11 HCP, 5/5 in bottom 2 unbid suits 3C : <11 HCP, 5/5 in top and bottom unbid suits
Weak 2 – 2D/2H/2S
2X/3X : 11-15 HCP, strong 5 card suit or 6+ card suit 2NT : 11-15 HCP, balanced, stopper Double : 11+ HCP, requesting Transfer Lebensohl response
1NT (Strong)
Meckwell Defense
Double : Strong or single suited
Pass : Balanced, 8+ HCP 2C : <8 HCP Pass or correct 2D : 8+ HCP Pass or correct
2X : 2-suited hand, see website/spreadsheet 3X : 3-suited hand, see website/spreadsheet
Slam Bidding
Slams occur infrequently (<5%) Glamorous but overrated Only 50% of slams are bid Only 50% of bid slams are made
IMP scoring – bid slam with 50% chance of making MP scoring – bid slam with 60+% chance of making
(Never bid a slam)
Requirements for slams
Distributional slams
Who knows?
Non distributional slams
6NT – 33 HCP
Missing 1 A or 2K
7NT – 36 HCP
Missing 0 A or 1K
6X
8 card fit – 32 points 9 card fit – 29 points 10 card fit – 26 points Missing 1A or 2K
7X
8 card fit – 35 points 9 card fit – 32 points 10 card fit – 29 points Missing 0A or 1K
Ace/Control asking conventions
RKC1430
Direct bid of 2NT over opening of 1D/1H/1S Jump to 4NT after trump suit established Bid of 4NT after game bid in 4H/4S 4NT invocation difficult when trump suit is a minor Voids and singletons ignored
1st step – 1 or 4 controls 2nd step – 0 or 3 controls 3rd step – 2 controls no Q of trump 4th step – 2 controls with Q of trump
Practice
Beta Asking Bid
Jump to 4C if no natural C bid otherwise Jump to 4D if no natural D bid Over NT is a replacement for Gerber Response is in steps indicating number of controls where A=2 controls and K=1 control 1st step – 0-2 controls Rebid of next higher suit asks for clarification 1st step – 0 controls 2nd step – 1 control 3rd step – 2 controls 2nd step – 3 controls 3rd step – 4 controls … There are 12 controls total Voids and singletons ignored
Practice
1D/1H/1S – 2NT (Unique to this system)
4+ support and 16+ points (HCP+DP) 3 support and 19+ points (HCP+DP) Opener rebids 3NT or 4H/4S/5D if 11-13 HCP Opener rebids as RKC1430 responder if 13-15 HCP
Practice
1C open
After trump suit established Either RKC1430 or Beta Ask by opening bidder (strong hand)
2C open
4D is beta ask 4NT is RKC1430
2D open
4D is beta ask 4NT is RKC1430 Since often suit is not established, beta ask is preferred
1NT open
4C is beta ask 4NT is quantitative ask 5NT is grand slam try
Advice
System is aggressive, you don’t need to be. Against reasonably competent opponents you can’t muscle a contract for which you don’t have the cards. The strength of this system is its increased accuracy/precision coupled with aggressiveness. Bid early, tell partner what is going on. Just because opponents outbid you doesn’t mean they will make their contract. Don’t sacrifice on part scores, especially when vulnerable. Opponents don’t have precision, don’t know when to stop, and consequently often overbid. You can apply the Winning Trick Evaluation Method to opponents bidding Only double for penalty when you think they will go down 2+ tricks Bid the system!
