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Quiz: Barrier-Reversing

Quiz: Deal # Thursday
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Basic
strategy
0000). How to use 0001). Bidding Objectives = "8 and 25" 0002). 28 for minor 0003). 33 for NT slam 0004). Suit slam 0005). Importance of length 0006). Convention card 0007). ACOL and American Standard, differences 0008). A-Z Glossary 0690). A-Z Glossary
Hand
evaluation
0010). Balanced-Unbalanced 0011). How strong is your hand, HCP 0012). Distribution points 0013). Losing trick count 0014). Barrier-Reversing 0015). Selection of opening suit 0016). Showing shape 0017). 4441 distribution 0018). The skip over principle 0019). Rule of 20 Opening 1 of a suit 0019a). Rule of 25 Opening 2 of a suit 0019b). Rule of 500 Max penalty risk on preempt if doubled 0019c). Law of total tricks 0019d). Rule of Protective bidding
Opening
bids
0020). Plan of attack 0021). Bal, 12 to 19 HCPs, weak NT 0022). Bal, 20+ points 0023). Bal, 15 to 17 HCPs, strong NT 0025). Unbal, 12 to 19 HCPs, 1 suit 0026). Unbal, Strong 2s 0027). Unbal, Pre-emptive 0028). Unbal, Gambling 3NT 0029). Benji Strong 2s
Responder
1st bids
0030). After 1NT, General principles 0031). After 1NT, Weak 0032). After 1NT, Getting out of trouble 0033). After 1NT, 11+ balanced 0034). After 1NT, 11+ 4-card major 0035). After 1NT, 11+ unbalanced 0036). After 1NT, 19+ 0037). After 2NT 0038). After 1NT, and Enemy has interfered 0039). 1 NT responses 0040). After 1 Suit, With fit 0041). After 1 Suit, No fit, but alternative suit 0042). After 1 Suit, No fit, no new suit, probably balanced 0043). After 1 Suit, 6 points, nothing to bid 0044). After 1 Suit, Very strong 0045). After 1 Suit, Weak freak 0047). After 2 Suit, Strong 2s 0048). After 2 Suit, Weak 2s 0049). After 3 Suit, Responding to preempt
Openers
rebid
0050). Unbalanced, The general idea 0051). Unbalanced, You are weak 0052). Unbalanced, You are strong 0053). Unbalanced, Partner replied with 1NT 0054). Unbalanced, Delayed support 0055). Balanced
Responder
rebids
0060). Responder rebids, The general idea 0061). Choice of two suits 0062). Responders reverse 0063). After 1NT rebid
Basic
Convention
0080). Stayman 0081). Transfer 0082). Transfer after 2NT 0161). Minor suit transfer
Slam
bidding
0090). Slam, Spotting the chance 0091). Blackwood 0092). No-trump slam 0093). Gerber 0094). Extra slam techniques
Interfering
bids
0100). Overcalls, the basic idea 0101). Overcalls, in a suit, over a suit 0102). Overcalls, in a suit, over 1NT 0103). Overcalls, in NT, over a suit 0104). Overcalls, Jump overcall 0105). Overcalls, Double then bid a suit 0106). Overcalls, Bidding opponents suit 0107). Overcalls, Balancing (protective) 0108). Overcalls, Overcall a preempt 0109). Overcalls, Preemptive double jump 0110). Overcalls, To overcall, or to double 0111). Overcalls, Response to 1NT after suit overcall (Lebensohl) 0115). Defence after 1NT 0116). Competitive bidding 0117). Be cautious sometimes 0118). Sacrificing Be bold when non-vulnerable 0119). Sacrificing 0120). Doubles, Double a 1NT 0121). Doubles, Double for takeout 0122). Doubles, Doubling after opponent overcall 0126). Doubles, Protective double
Doubles

0120). Doubles, Double a 1NT 0121). Doubles, Double for takeout 0122). Doubles, Doubling after opponent overcall 0123). Doubles, Negative double 0124). Doubles, Double a 1NT overcall 0125). Doubles, Double a suit over 1NT 0126). Doubles, Protective double 0127). Doubles, Responsive double 0128). Doubles, Double then bid a suit 0129). Doubles, Penalty 0130). Doubles, Support double 0131). Doubles, Lead directing double 0132). Doubles, Maximal double 0133). Doubles, Redoubling - coded meanings 0134). Doubles, Forcing Pass 0135). Doubles, Re-opening double 0139). Doubles, Index of doubles
Advanced
Convention
0150). Majors Jacoby 2NT 0151). Majors Splinters 0152). Majors Weak 2s 0153). Majors Weak 2 defence 0154). Trial bid 0160). NT and minors 4th suit forcing 0161). Minor suit transfer 0162). DONT Bidding When Opponents open 1NT 0163). Game tries 0166). Grand Slam Force 0167). Roman Keycard Blackwood 0168). Cue bidding for controls 0170). 2-suited Overcall Unusual 2NT 0171). 2-suited Overcall Michaels cue bid 0172). 2-suited Overcall Landy over 1NT 0173). Overcall Unassuming cue bid 0179). Very advanced

Quiz How much do you know about this page? Quiz

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Quick summary

With 16+ HCP, Slam on ! Better tell partner. But how?

You must select a bid which forces your partner to bid again.

Let your partner know how strong you are, but not necessarily on the first bid.

Only "jump shift" to a new suit when you have a single re-biddable 6-card suit, but

a 5-card will do if you have either 4-card support for partner, or a NT rebid.
(called a "jump-fit")

Print cribsheet

Bridge Venue

	West
	10
	K 8 6 4
	9 6
	A J 10 9 5 4

+	North
	K J 7 4
	Q 9
	K 10 7 5 2
	8 2

+	East
	A 8 3 2
	A J 7 3 2
	A Q
	K 6

+	South
	Q 9 6 5
	10 5
	J 8 4 3
	Q 7 3

Example Deal

You: West
Dealer: West
Vuln: unknown

# 126057

Bypassing a Major game for Slam investigation - but how?
..
Go to quiz (& full page) of deal # 126057

***

Click the + buttons to peep

#1	+	<-- click the + to show/hide one possible Bidding Sequence
West			North	East	South
p			p	1H	p
???
3C			p	4D	p
4S			p	4NT	p
5H			p	6H	p
p			p
-			System: Acol (Benji)
suggest a different Bidding Sequence

bid	explained at....
#2	+	<-- click the + for explanation of relevant Bidding Techniques
1H	Unbal, 12 to 19 HCPs, 1 suit
3C	After 1 Suit, Very strong
4D	Cue bidding for controls
4S	Blackwood


			Hand evaluation

« 0044 »

Responder 1st bids. After 1 Suit, Very strong

So "Slam" is distinctly possible, "Game" is certain. What fun !

44. Reply to 1 Suit opening. Very strong
Points	13+	16+	16+	19+	21+
balanced, with stoppers
bid	3 NT	a new suit			6 NT
unbalanced, no fit
cards	any	<6	6+
bid	new suit	new suit	jump in new suit ("jump-shift")
unbalanced, with fit, beginner
cards	4-card Major
bid	4 of the Major			investigate slam
unbalanced, with fit, advanced
cards	4-card Major fit
bid	Splinter or Jacoby 2NT			investigate slam
unbalanced, with fit, advanced
cards	4-card Major fit, and a 5-card side suit
bid	A "jump-fit" (but see "jump-shift", above, which denies a fit)
Add to your customised cribsheet

The general principles:

let your partner know what is going on, but not necessarily on the first bid,
unless you go straight to Slam, (which would be unusual), you must select a bid which forces your partner to bid again

Your first bid. Jump-shift ?

A commonly used bid when you have 16+ points is the "jump shift", but this should generally only be used when you have a single re-biddable 6-card suit. This is code for “Partner darling, we're in the money. I have 16+ points, 6-card suit. Do your arithmetic, and get back to me ! With your 12-19 points, we could be in slam territory here”.

If you only have a 5-card suit, simply change suit (bid at the lowest level available, i.e. shift, but don't jump) and show your impressive strength to your partner next time round. You will get a chance, because your change of suit was a forcing bid.

However, there are 2 other occasions when you can "jump-shift", again to show slam potential, and again because it's actually worth wasting one level of bidding to achieve a descriptive bid:

5+ card suit, and 4-card support for opener's suit
- (a "jump-fit", eg. deal 126057)
5+ card suit, and the ability to rebid in NT

Forcing

Suppose you have a wonderful hand with 16+ points with a good long suit not bid by your partner, and suppose you also have 4-card support for the suit your partner opened with. Since you have found an 8-cards fit in your partner's suit, and tons of points, should you support your partner's suit, or should you bid you own long suit?

It might be best not to support your partner. Not yet, anyway. That's because supporting your partner's suit is not forcing. He might simply pass. So even though you might (hopefully) at least have raised to game, you could miss a Slam if partner stops bidding. However, shifting to a new suit is forcing. You can go on to support partner's suit next time.

Balanced hand

If you have a strong balanced hand (19+ points) you can make a strong so-called "quantitative" bid in NT (4, 5, 6 or even 7), giving your partner a very precise point count, which is important in NT.

Responder's second bid

Your partner (the opener) could have 12 HCP, or he could have as many as 19. These differences are profound, so listen carefully to his second bid. By then you will know his strength, his balance, and maybe his second best suit as well as his first.

Assemble this information, put it alongside your hand, and try to decide if Slam could be on in a suit or NT. If the answer is positive, use Slam bidding techniques, including cue bidding if appropriate and if you know how to. If not, then put an end to the bidding by closing off at the "game" level, usually 3NT or 4 of a major suit, . And sometimes, if you must, 5 of a minor suit, .

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Quiz: Barrier-Reversing