LD Precision Club

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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!
LD Precision Club

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