BBO Discussion Forums: 15+ 1C opening - BBO Discussion Forums

Jump to content

Page 1 of 1
  • You cannot start a new topic
  • You cannot reply to this topic

15+ 1C opening

#1 User is offline   Adebisi 

  • PipPip
  • Group: Members
  • Posts: 48
  • Joined: 2005-February-28

Posted 2006-April-29, 01:39

Hi, im looking for good follow-up after 15+ 1C opening and 1D 0-8 neg response.
1NT is 12-14 so 1C-1D-1NT=should be 15-17, but rest?Especially how to deal with 4441 hands?Any good ideas?
0

#2 User is offline   Free 

  • mmm Duvel
  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 10,728
  • Joined: 2003-July-30
  • Gender:Male
  • Location:Belgium
  • Interests:Duvel, Whisky

Posted 2006-April-29, 04:05

Here's what I play:

1 = extra's, relay (1 double negative)
1 = 5+
1NT = minimum, can be semibalanced (5422, 5431, 4441)
2m = (5)6+m
2 = (5)6+

It usually works out ok when bidding 1NT on semi balanced hands, but it can be hard when you have 5 and some side 4 card suit.

After double negative:
1NT = natural, can be semibalanced (4441, 5422, usually no 5431 -> canapé transfer)
2 = any GF (2 is waiting bid, other are extremely weak and natural)
2/M = canapé transfer
2NT = a non-minimum NT hand
3 = canapé transfer
"It may be rude to leave to go to the bathroom, but it's downright stupid to sit there and piss yourself" - blackshoe
0

#3 User is offline   Robert 

  • PipPipPipPipPip
  • Group: Full Members
  • Posts: 604
  • Joined: 2005-November-02
  • Location:U.S.A. Maryland
  • Interests:Science fiction, science fantasy, military history, bridge<br>Bidding systems nut, I like to learn them and/or build them.<br>History in general(some is dull, but my interests are fairly wide ranging)<br>

Posted 2006-April-29, 08:39

Hi everyone

I use a 16+ 1C, however, your 15+ might be able to use the method.

1C-1D-1H*=either natural with hearts(Kokish two way type style) or shows a club suit.

Responder bids a semi auto 1S and opener bids 1NT* with a club hand and any other bid shows hearts and the suit bid.

1C-1D-1S* 1 round force showing 4+ spades. Responder bids 1NT with 0-5HCP,
2C* with 6-7HCP, 2D*=3 card raise, 2H=natural or bids 2S with 4 card support.

1C-1D-1NT* shows 18-20HCP balanced. You might want to 'switch' your NT opening range to a medium 14-16 or 15-17 or you will be 'jumping' to 2NT with 18HCP opposite a known 0-7(8?)HCP. You could also use the 1C-1D-1H as a 18+ relay, however, that causes other problems with the higher rebids.

1C-1D-2C* shows diamonds.

1C-1D-2D* shows 4441 types with 19+ HCP. My testing suggested that the minimum 4441 types should try to stay low opposite a 1D reply.

Changing the range to 19+ also allows very accurate bidding opposite weak hand types.

1C-1D-2H*(Kokish style) strong two hearts or 25+HCP(if 2NT rebid)

I also use a multi 2D opening to show either 6M or 27-28HCP.

1C-1D-2S* minors at least 5-5

1C-1D-2NT=23-24

1C-1D-3C natural force with 5+ clubs

1C-1D-3D natural force with 5+ diamonds

1C-1D-3M= 1 round force with 4(+)M and 6(+) diamonds with a very strong hand.

1C-1D-3NT=to play with long minor and hope for nine tricks.

1C-1D-4C(5503) and 1C-1D-4D(5530)

Regards,
Robert
0

#4 User is offline   NickToll 

  • PipPipPip
  • Group: Full Members
  • Posts: 62
  • Joined: 2005-January-07
  • Location:Modena - Italy

Posted 2006-April-29, 12:20

I like the following development, derived by Tony Forrester (TRS System, 80s). I admit it doesn't fit with everyone's taste, but maybe you can find it interesting. This version is partially modified, in order to include 15+ balanced hands (Forrester starts from 17, playing 14-16 1NT): you be the judge (uhm... where did I hear this one?...)

1 - 1 - ?

1: minimum 2suiter, higher suit is longer, or 15-17 balanced or GF balanced; 1 is semiautomatic, then:
1NT 15-17
2 clubs + a major (2 relay for the major)
2 diamonds + a major (2/ pass/correct)
2 majors
2 minors
2NT GF balanced

1: minimum 2suiter, lower suit is longer; 1NT is relay (not mandatory), then:
2 clubs + a major (2 relay for the major)
2 diamonds + a major (2 pass/correct)
2 majors
2 minors

1NT: transfer to clubs, or 18-20 balanced; here 2 is double negative, and opener:
pass minimum 1suiter
2 18-20 balanced
2 clubs and this suit, non-minimum (otherwise 1), one-round force
2NT clubs and diamonds, non-minimum, one-round force
3 18-20 1suiter
positive bids by responder: 2 general positive, 2 5card suit, 2NT long diamonds, 3 INV raise, 3+ Splinter: now opener's 3 is limit, others are game-forcing;

2: transfer to diamonds; here 2 double negative, 2 general positive, 2/3 natural, 2NT hearts, 3 INV raise, 3+ Splinter; further development is as after 1NT, not considering balanced 18-20; after a general positive, 2NT by opener shows a 2suiter: the second suit is the one artificially bid by partner.

2: transfer to hearts; here 2 double negative, 2 general positive, 2NT spades, 3 natural, 3 INV raise, 3+ Splinter;

2: transfer to spades; here 2 double negative, 2NT general positive, 3 natural, 3 INV raise, 4+ Splinter;

2: 3suiter, 18+; 2NT positive relay for the suit under the singleton, 3 and more to play (with 15-17, treat as 2suiter)

2NT: 21-23 balanced

3: game-forcing 1suiter
Selling is the second oldest profession, often confused with the first.
(Mahan Khalsa)
0

#5 User is online   hrothgar 

  • PipPipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 15,709
  • Joined: 2003-February-13
  • Gender:Male
  • Location:Natick, MA
  • Interests:Travel
    Cooking
    Brewing
    Hiking

Posted 2006-April-29, 12:56

I don't like response strucutres based on 1 negative to a storng that could be made on a 15 count. Your 1 response ends up badly overloaded.

Here's the structure that I'm current using

3N game forcing values, 5=4=4=0 shape
3 game forcing values, 4=5=4=0 shape
3 game forcing values, 5=4=4=0 shape
3 game forcing values, any 5440 with a void
3 any solid suit (AKQxxxx or better)
2N game forcing values, any 5440 with a major suit void
2 semi-positive, single suited with Spades
2 semi-positive, single suited with Hearts
2 semi-positive, 5+ Hearts and 4+ Diamonds
2 semi-positive, 5+ Hearts and (4+ Clubs or 4 Spades)
1N semi-positive, unbalanced with 5+ Spades
1 artificial double negative
1 artificial semi-positive (balanced or unbalanced with 4 card major)
1 artifical game force
Alderaan delenda est
0

#6 User is offline   luke warm 

  • PipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 6,951
  • Joined: 2003-September-07
  • Gender:Male
  • Interests:Bridge, poker, politics

Posted 2006-April-29, 21:00

i like free's (sort of), except keeping the relay structure, just 2 steps up

1c : 1d
1h (relay, extras) :
  • 1s=double neg
  • 1nt=4+ hearts
  • 2c=4+ spades
  • etc
for the 1nt and higher, responder needs to be 5-8 or so with at least 1 control.. i don't like systems that have opener's hand (the strong one) describing, unless it shows a limit hand or a gf hand (1 or 2 nt, for example)
"Paul Krugman is a stupid person's idea of what a smart person sounds like." Newt Gingrich (paraphrased)
0

#7 User is offline   Free 

  • mmm Duvel
  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 10,728
  • Joined: 2003-July-30
  • Gender:Male
  • Location:Belgium
  • Interests:Duvel, Whisky

Posted 2006-April-30, 02:24

Well, usually the relaystructure will get us too high, but not always. We can still relay, but we can also break relays and go to a natural bidding when we don't see any slam... I think it combines both methods very well. Initial responses over the relays are indeed the same like our usual relayscheme. :(
"It may be rude to leave to go to the bathroom, but it's downright stupid to sit there and piss yourself" - blackshoe
0

#8 User is offline   ulven 

  • PipPipPipPip
  • Group: Full Members
  • Posts: 294
  • Joined: 2005-October-21
  • Gender:Male
  • Location:South Sweden
  • Interests:Real name: Ulf Nilsson
    Semi-pro player.

Posted 2006-May-01, 14:59

I play the following over a 15+ 1C and 0-9 1D reply:

1H 17+ w/BAL / (18+) 20+ w/unBAL
1S 15-20 w/5+M (2-suited)
1N 15-16 w/BAL
2C 15-20 w/4*M & 5+m
2D 15-20 w/6+M
2H 15-17 w/4H441
2S 15-17 w/54+ m’s
2N 15-17 w/6+D
3C 15-17 w/6+C
3D 15-17 w/55+ in M’s
3M 15-17 w/7*M

Relays over 1H with 8-9. All NT-intervals are broken into 2-p ranges.
"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong."
- R. Buckminster Fuller
0

#9 User is offline   vang 

  • PipPipPipPip
  • Group: Full Members
  • Posts: 278
  • Joined: 2004-February-18
  • Gender:Male
  • Location:Romania
  • Interests:Linux

Posted 2006-May-02, 09:20

hrothgar, on Apr 29 2006, 08:56 PM, said:

I don't like response strucutres based on 1 negative to a storng that could be made on a 15 count.  Your 1 response ends up badly overloaded.

Here's the structure that I'm current using

3N game forcing values, 5=4=4=0 shape
3 game forcing values, 4=5=4=0 shape
3 game forcing values, 5=4=4=0 shape
3 game forcing values, any 5440 with a void
3 any solid suit (AKQxxxx or better)
2N game forcing values, any 5440 with a major suit void
2 semi-positive, single suited with Spades
2 semi-positive, single suited with Hearts
2 semi-positive, 5+ Hearts and 4+ Diamonds
2 semi-positive, 5+ Hearts and (4+ Clubs or 4 Spades)
1N semi-positive, unbalanced with 5+ Spades
1 artificial double negative
1 artificial semi-positive (balanced or unbalanced with 4 card major)
1 artifical game force

can you detail a little bit what happens after 1 - 1 ? tya
0

#10 User is offline   Sigi_BC84 

  • PipPipPipPip
  • Group: Full Members
  • Posts: 470
  • Joined: 2006-January-20

Posted 2006-May-03, 22:53

vang, on May 2 2006, 04:20 PM, said:

can you detail a little bit what happens after 1 - 1 ? tya

Here's a document describing it in some detail (and the rest of the entire system in quite some detail :-):

Marston/Thompson Moscito 2005 (your question is answered on page 11).

Maybe Richard plays it differently...

--Sigi
0

#11 User is offline   rbforster 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,611
  • Joined: 2006-March-18

Posted 2006-May-07, 10:20

I play a strong club (16+) similar to Free with 1-1-1 artificial and extras (20+). Other rebids by opener besides 1 are natural and limited (~16-19), in particular NF. After the 1 (extras) - 1 (double negative), I just play 2 as an artificial GF and everything else natural. Not quite so fancy as Free's methods, but simple.
0

#12 User is online   awm 

  • PipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 8,531
  • Joined: 2005-February-09
  • Gender:Male
  • Location:Zurich, Switzerland

Posted 2006-May-07, 10:32

I've found the following structure to work a bit better than natural bids on minimums, because the sequence 1-1-2 showing 5+ is very awkward:

1-1...

1 = extras, try to relay (all others are 15-18)
1 = major+minor two suiter, can be (41)44 or 4-5/5-4 either way
1NT = minimum-range balanced
2 = both majors, at least 4-4
2-2 = natural 6+ card suit deny a side 4+ card major
2N = both minors
3 = 6+ no 4cM

After 1-1-1:

1N = 6+ points, ask for five-card suit
2 = 0-5 points, pass/correct for five-card suit
2 = ask for major, potentially any strength
2/2 = 0-5 points and 6-card suit
2N = 0-5 points and 4+/4+ minors
3/ = 0-5 points and 6-card suit
Adam W. Meyerson
a.k.a. Appeal Without Merit
0

#13 User is offline   rbforster 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,611
  • Joined: 2006-March-18

Posted 2006-May-07, 14:47

awm, on May 7 2006, 11:32 AM, said:

I've found the following structure to work a bit better than natural bids on minimums, because the sequence 1-1-2 showing 5+ is very awkward

Thanks for the suggestions, Adam. You're right that bidding 2 with 5+ and a minimum was definitely an unpleasant choice in my system.
0

Page 1 of 1
  • You cannot start a new topic
  • You cannot reply to this topic

1 User(s) are reading this topic
0 members, 1 guests, 0 anonymous users