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Defense against strong two club opening

#1 User is offline   Lovera 

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Posted 2017-January-24, 15:31

About this argoument i have not found much. Although probably has to be much convenient to interefer with the aim to prevent informations in partnership. Infact, having a suit with 7/8 cards in a range of about 7/8 - 12/13 points and a top honor (or two) can be bid it at third level whilest with a suit more supported (three honors/+) the bidding can be taken at fourth level. How do you think about it ?
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#2 User is offline   SteveMoe 

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Posted 2017-January-24, 16:37

I've found with proper vulnerability defenders don't interfere enough. Don't underestimate the pressure eliminating the 4-level has on the opponents. Even a 5-card suit can be enough at the 2-level (lead director). Often a bid helps guide the defense - more than just getting in the way off their constructive bidding.

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#3 User is offline   Lovera 

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Posted 2017-January-24, 17:06

View PostSteveMoe, on 2017-January-24, 16:37, said:

I've found with proper vulnerability defenders don't interfere enough. Don't underestimate the pressure eliminating the 4-level has on the opponents. Even a 5-card suit can be enough at the 2-level (lead director). Often a bid helps guide the defense - more than just getting in the way off their constructive bidding.

CRaSh is GOOD!

I think that you agree. Yes, favoureble vulnerability helps surely and can allow to bid easier (and more) expecially by first opp (2 - ?(=first opp) ..-..) and partner can value how to continue if supporting (=bid level/n.r of supp. cards). Balanced or half-balanced hands with few points seem not be indicated to interfer while unbalanced are right for bidding. Actually we are talking only of these one to open dialogue.
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#4 User is offline   Stefan_O 

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Posted 2017-January-25, 02:21

View PostLovera, on 2017-January-24, 15:31, said:

having a suit with 7/8 cards in a range of about 7/8 - 12/13 points and a top honor (or two) can be bid it at third level whilest with a suit more supported (three honors/+) the bidding can be taken at fourth level.


Isnt that pretty much how players already bid?

Only... when opps open strong 2C, I always seem to hold a hand like:
xxx xxx xxx xxxx
or similar :)
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#5 User is offline   Lovera 

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Posted 2017-January-25, 03:22

View PostStefan_O, on 2017-January-25, 02:21, said:

Isnt that pretty much how players already bid?

Only... when opps open strong 2C, I always seem to hold a hand like:
xxx xxx xxx xxxx
or similar :)

Yes, certainly that can have it and in this case partner will bid consequently (but you considered before this situation reversed).
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#6 User is offline   Lovera 

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Posted 2017-January-25, 03:29

As told the aim is oriented in three ways: 1) to disturbe communications (i.e. 2 is generic or "any shape"); 2) to have possibly a sacrifice more economic (when are doubled); 3) at worst to try at make playing them to game level when there is a slam.
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#7 User is offline   Zelandakh 

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Posted 2017-January-25, 03:38

Most just play their Strong 1 defence a level higher. Some popular options are Mathe (X majors, 2NT minors); Truscott (2/3 show the bid suit plus the next higher; X +; 2NT +); Crash/CRO (X = + or +; 2 = + or +; 2NT = + or +); and Modified Crash (X = ; 2 = ; 2= + or +; 2 = + or +; 2NT = + or +). Some less popular options are Suction, Psycho Suction and canapé overcalls.

FWiiW I agree with Steve's first sentence wholeheartedly and have had a lot of success against club level opps with light (probably unsound) overcalls of their strong artificial openings.
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#8 User is offline   Lovera 

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Posted 2017-January-25, 03:58

View PostZelandakh, on 2017-January-25, 03:38, said:

Most just play their Strong 1 defence a level higher. Some popular options are Mathe (X majors, 2NT minors); Truscott (2/3 show the bid suit plus the next higher; X +; 2NT +); Crash/CRO (X = + or +; 2 = + or +; 2NT = + or +); and Modified Crash (X = ; 2 = ; 2= + or +; 2 = + or +; 2NT = + or +). Some less popular options are Suction, Psycho Suction and canapé overcalls.

FWiiW I agree with Steve's first sentence wholeheartedly and have had a lot of success against club level opps with light (probably unsound) overcalls of their strong artificial openings.

Infact at a certain point is a matter to choise, i think necessarly, a convention (like these one) and i for better to define, has become in this way. There are ultheriors declarative situations to consider subsequently.
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#9 User is offline   Zelandakh 

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Posted 2017-January-25, 04:18

View PostLovera, on 2017-January-25, 03:58, said:

Infact at a certain point is a matter to choise, i think necessarly, a convention (like these one) and i for better to define, has become in this way. There are ultheriors declarative situations to consider subsequently.

Could you perhaps re-write this (in real English)? I would probably have more idea what was meant if you had posted the Italian and I plugged that into Google Translate!
(-: Zel :-)
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#10 User is offline   Lovera 

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Posted 2017-January-25, 04:34

Two hands of this type :1) West KJ109 KQJ98742 - 5 North A875432 - AKQJ10 A East Q 10653 76 876432 South 6 A 985432 KQJ109 (7 for N-S, 7 by W then 7NT by S). 2) West 532 AKQ109532 - 95 North 94 6 Q82 AJ108743 East - J874 J10976543 6 South AKQJ10876 - AK KQ2 Bidding:S 2 W 4 N 5 E(Ilyoucha Babovitch)6, 6 p p 7, X all pass.
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#11 User is offline   Zelandakh 

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Posted 2017-January-25, 05:20

I don't think coming in on the solid 8 card suits is much of a problem. Do we need to discuss system for this?
(-: Zel :-)
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#12 User is offline   ahydra 

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Posted 2017-January-25, 06:27

View PostSteveMoe, on 2017-January-24, 16:37, said:

I've found with proper vulnerability defenders don't interfere enough. Don't underestimate the pressure eliminating the 4-level has on the opponents. Even a 5-card suit can be enough at the 2-level (lead director). Often a bid helps guide the defense - more than just getting in the way off their constructive bidding.


Absolutely. There was a hand recently where I overcalled opps' strong 2C with 2H on a pretty flimsy 5-5 reds, partner bounced to 3H on just a doubleton, and it won us 12 IMPs as they got into the wrong game. We could have gone for 800, of course, but they don't always suspect that if you're green and they're red.

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#13 User is offline   Lovera 

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Posted 2017-January-25, 13:10

View PostZelandakh, on 2017-January-25, 05:20, said:

I don't think coming in on the solid 8 card suits is much of a problem. Do we need to discuss system for this?

It may be but this makes the concept better.
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#14 User is offline   Lovera 

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Posted 2017-January-25, 13:35

Three hands for overcall at third level :1) West J6 AQ98765 Q10 AJ North Q10984 J1042 86 93 East 732 3 J753 106542 South AK5 K AK942 KQ87 (this hand was played by me w/o interf. for 4+1); 2) West 43 976 KJ98742 2 North J7652 QJ103 Q3 54 East 98 K85 106 QJ10987 South AKQ10 A42 A5 AK63 Bidding (at table): S 2 W 3 N p E p, 4 p 4 p, 6; 3) West QJ109876 - QJ9 QJ8 North K532 Q87 843 964 East - 65432 7652 7532 South A4 AKJ109 AK10 AK10.
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#15 User is offline   1eyedjack 

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Posted 2017-January-25, 15:03

Strength of field is an important consideration in informing your strategy of defence against a strong 2C opener.

Contrast a strong 1C opener, where in any field, weak or strong, the 1C opener has a big advantage if given a free run, which dictates a policy of aggressive interference.

With a strong 2C opener, however, there are two additional factors to consider:
1) Most non-expert players open 2C on inappropriate hands, and
2) Most non-expert pairs have at best a mediocre structure of continuations in an uncontested auction.

Both of these factors tend to suppress the marginal utility of aggressive intervention against anything but the best and most regular pairings.

Still, as this is posted in the expert forum, perhaps an expert opposition is to be assumed.
Psych (pron. saik): A gross and deliberate misstatement of honour strength and/or suit length. Expressly permitted under Law 73E but forbidden contrary to that law by Acol club tourneys.

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Masterminding (pron. mPosted ImagesPosted ImagetPosted Imager-mPosted ImagendPosted Imageing) tr. v. - Any bid made by bridge player with which partner disagrees.

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#16 User is online   johnu 

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Posted 2017-January-25, 15:07

View PostLovera, on 2017-January-25, 13:35, said:

Three hands for overcall at third level :1) West J6 AQ98765 Q10 AJ North Q10984 J1042 86 93 East 732 3 J753 106542 South AK5 K AK942 KQ87 (this hand was played by me w/o interf. for 4+1); 2) West 43 976 KJ98742 2 North J7652 QJ103 Q3 54 East 98 K85 106 QJ10987 South AKQ10 A42 A5 AK63 Bidding (at table): S 2 W 3 N p E p, 4 p 4 p, 6; 3) West QJ109876 - QJ9 QJ8 North K532 Q87 843 964 East - 65432 7652 7532 South A4 AKJ109 AK10 AK10.


Thankyouforyourpostbutitcouldusealittleformatting.
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#17 User is offline   Lovera 

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Posted 2017-January-26, 01:39

View Postjohnu, on 2017-January-25, 15:07, said:

Thankyouforyourpostbutitcouldusealittleformatting.

Yes, but i don 't know how to do (i am not " expert" about informatic use- sorry)
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#18 User is offline   Lovera 

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Posted 2017-January-26, 02:37

Other two hands, before continuing. The first by French players Guiton-Covo (in S-N): West Q105 86 9753 KQJ3 in North Covo 87632 J7542 82 A East - K109 1064 10976542 in South Guiton AKJ94 AQ3 AKQJ 8. The bidding (S-N, opp silent): 2-3(=Ace), 3-5(=good support), 6(=query complement of honors and not longness)-6(=negative). Here E-W have a good defence in club suit and if bidding goes ..2 by N, 3 by E, 3 for S, 5 (and more) by W,.. The second hand with in W Desrousseaux, in E Poubeau, in N/S Calix and Carcy. The bidding: W 2, N p, E 2, S 2 W 2 N 3 E 4 S 5 W p N 6 E double (opening lead A for 6X+1). If bidding goes 2 by W, 2NT (Unusual No Trump) by N the resulting it'd be the same (In closed room Stoppa in S and Roudinesco in N) The bidding:S p W 2 N p E 2 S 4 W 4 N 5 E 5 S 6 W double all pass (the same Ace of diamond for 6). (From "Bridge Suspense avec Pierre Jais" by Pierre Jais).W: AQJ1073 8 AKQJ K6 N: 84 Q5 108742 AQ92 E: K962 J73 9653 83 S:5 AK109642 - J10754
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#19 User is offline   Zelandakh 

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Posted 2017-January-26, 02:51

View PostLovera, on 2017-January-26, 01:39, said:

Yes, but i don 't know how to do (i am not " expert" about informatic use- sorry)

When you press reply to this message, take a look above the text area and you will see some rows of symbols. One of these begins with text types (bold, italic, underscore, etc). At the extreme right of this row is a black spade (picche) symbol between thin red bars. When you click on this it will open the Hand Editor. Enter your hands here and the formatting will be taken care of.
(-: Zel :-)
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#20 User is offline   Lovera 

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Posted 2017-January-26, 03:56

View PostZelandakh, on 2017-January-26, 02:51, said:

When you press reply to this message, take a look above the text area and you will see some rows of symbols. One of these begins with text types (bold, italic, underscore, etc). At the extreme right of this row is a black spade (picche) symbol between thin red bars. When you click on this it will open the Hand Editor. Enter your hands here and the formatting will be taken care of.

Thanks (i don't know it - select ..), i'll try to transcrive.
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