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Bridge: Two level preempts

Brown Sticker - no specified suit

Discussion The subject of banning such coventions was rather nicely discussed in the Unsenet group in December 2003. I have archived that debate. Particularly recommended {same file} is the list of Brown Sticker conventions used in the 2003 Bermuda Bowl. which are categorised rather nicely. held another good discussion on the BSC Wilkosz 2D in 1998

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Current WBF regs ...

2.3 Brown Sticker Conventions and Treatment The following conventions or treatments are categorised as 'Brown Sticker' a) Any opening bid of two clubs through three spades that: i) could be weak (may by agreement be made with values below average strength) and ii) does not promise at least four cards in a known suit.

Exception The bid always shows at least four cards in a known suit if it is weak.
If the bid does not show a known four card suit it must show a hand a king or more over
average strength. (Explanation: Where all the weak meanings show at least four cards
in one known suit, and the strong meanings show a hand with a king or more above average
strength, it is not a Brown Sticker Convention).

Exception A two level opening bid in a minor showing a weak two in either major,
whether with or without the option of strong hand types, as described in the WBF
Conventions Booklet

b) {Edited out: overcall definitions ..} c) Any 'weak' two-suited bids at the two or three level that may by agreement be made with three cards or fewer in one of the suits. (d,e) {Edited out: psych controls; strong opening, and Brown sticker defence ..}

So called "Brown sticker" conventions - lacking an anchor suit
These are legal only in special events and WBF final rounds

index This page lists methods excluded or banned by these WBF regulations. The Weak Two Archive also has Mainstream two styles, more advanced methods, Assumed fit preempts and a site index


Bacon Torpedo Two-bids

brown sticker large bacon sandwich Defined The Bacon Torpedo system of the brainchild of Durham University bridge club and shows very specific hand types. I have never seen it in play - nor am I likely to!
  • 2S shows a singleton 'beer card' (D7)
  • 2H shows a straight flush in any suit
  • 2D shows four of a kind (of any rank)

From a posting by Robert Morris on r.g.b. The following URL is a "must visit" for anyone with an interest in Weak two's and a sense of humour!

The beer card Diamonds are not trumps and the play of your seven to the final trick exactly sets opponent's or makes your contract - then tradition holds that your partner must buy pints of beer for the whole table.

The remainder of the openings on this page are much more serious ...


Chih-Kuang Two-bids (CK2s)

brown sticker Defined All the bids are either weak major twos, or weak 5-5 types
  • 2D is either weak in hearts or 5 spades and a minor
  • 2H is either weak in spades or 5 hearts and a minor
  • 2S is weak 55, with either both majors or both minors {Brown sticker}


Frequency at 2D/H 2.3% each; 2S 0.8%; total 5.4%

Keywords transfer multi fivecard fiveside tight

Correspondent B.Y (yangboy) of dates CK2's to around 1950 or so in Taiwan, where some are still standard tournament weapons.

"Most of the funny gadgets in Taiwan seems to have originated from a very shadowy location called OBC (Ordnance Bridge Club) situated somewhere in the forest of army barracks. Dr C S Shen, one of Taiwan's greats from that era, remember playing against their multiplitude of gadetry".


Concept Preempts

brown sticker Defined Always weak
  • 2D = {six diamonds, or five hearts}
  • 2H = {six hearts, or five spades}
  • 2S = {six spades, or (optionally) both minors}

Response Unknown - await a double? ParadoX advances would work well.

Frequency 8.5% per pair - most openings are the 5 card upper suit

Keywords loose sixcard fivecard

Concept is presently an area of inovation, with both a Red Flash 2D as undefined red suit, and Major Flash 2H as either major reported in 2002/3. You should also look at the related two way twos.


CRO (aka RCO, OCR) preempts

brown sticker Defined There are six possible permutations of same "colour" "rank" amd "odd" suit pairings requiring 3 openings. Australians commonly play
  • 2H = suits of same colour
  • 2S = suits of same rank
  • 2NT = odd (non touching) suits

CRO is in the brown sticker section because it has no anchor suit, but it really is quite tame compared to its neighbours. Perhaps not so this variation seen from the New Zealand squad in recent Olympiads which relies on an Ekren style scramble with 4 card suits!

  • 2C 0-7 4+ major and 4+ minor
  • 2D = 0-7 4+/4+ majors or 4+/4+ minors

Response Presumably suits upward

Frequency 0.39% per 5/5 duplex = 2.3% total

Pro points Simple and straightforward but a great nuisance


Defence See generic defences page

Australian Douglas Newlands - "Both RCO and CRO are seen with the former being more common. Usually played with a multi 2D and use 2H, 2S,2N as the 2 suiters. The suit pairing are as you would expect from the acronym (Colour, Rank, Odd). The odd bit is what to use as the enquiry over 2NT, or rather how to use it. Playing RCO, the query is 3C with responses like ..

- always bid a suit you have
- bid the lower one if minimum and the higher if max
- bid 3NT with C+H max

Playing OCR, the query tends to be 3H with various schemes like

- 3S minors min
- 3N minors max
- 4m majors max, short here
- 4H majors min

All suit bids are pass or correct. They are sufficiently common that LOLs may arrive playing multi 2D + RCO.

CRO is also common currency in Finland where it is known as scissors.


de Carlo Preempts

brown sticker Defined Played 11-15: Two of a suit showing one of ..
  • 4441 short in the next suit up
  • Lucas style 5/4 hand long in the next suit up

Response 2NT is forcing with relays. Other bids are ParadoX advances guessing the contract. ie advvance 2D - 2S with C Q1053 D 97 H K852 S J84. This shows heart support to the three level.

Frequency The 5/4 hand is about 4% and the 4441 shape rare.

Pro points Actually very controlled as your hand style is defined, yet hard to defend

Defence You assume the commoner 5/4 and play double = cooperative penalty. Next suit = takeout

This Argentine style is attributed to Marcelo De Carlo who plays it in a relay system.


"Economou" 2NT (a.k.a Terrorist 2NT)

brown sticker Defined Preempt in an unspecified suit

Variant known as Terrorist 2NT in USA, Also encountered as a Terrorist 2S opening Ruthanne Williams reports a terrorist "Multi" 2D from Turkish internet players

Response Unknown. Start with 3C?

Frequency Depends on your style - 6% for 6 card hands plus your 7 carders - say 8%

Keywords multi sixcard loose

Defence See generic defences page


Finnish Scissors

brown sticker

Defined all are 5-10hcp at least 5/5 2H = {hearts and clubs}, or {spades and diamonds} 2S = {spades and clubs}, or {heards and diamonds} 2NT = minors or majors

Response 2NT asking over majors 3C = min: clubs + the major opened 3D = min: diamonds + the major opened 3H = max: hearts + minor as defined above 3S = max: spades + minor as defined above

A general mnemonic is that the major openings are suit bid with clubs, or the other two. The responses always show the suit bid.

After 2NT - 3H? is the ask a simpler 3S = majors; 3NT = minors is used

More importantly one can make ParadoX advances bidding as high as one dares assuming the most unfavourable pattern. Opener will pass or correct.

Tuomo Väliaho of Helsinki tells me scissors is very popular in Finland played with a multi 2D, and it is "part of their modern standard". It is known locally as "3-way" scissors, and the Finnish epithet is mine. Polish scissors on this page seems related only by name, and a 5/5 pattern.

Defence See generic defences page

Finnish scissors is a variant of CRO/RCO style


"MacFarlane" 2NT

brown sticker Defined 5-9 5/5 in clubs/hearts or diamonds/spades

Defence See generic defences page

This is a subset of CRO style


"Matthews" 2 spades

brown sticker Defined 8-12 points and {55 minors or 5/5 majors or Semi solid major}

Response 2NT relay: 3C = minors 3D = majors 3H/S = natural

Frequency about 1.7%

Pro points Defines your major threes better, and a handy preempt on 5/5s

Against You lose the wonderful weak 2 spades

Defence See generic defences page


Major Flash

brown sticker Defined 2H = Weak two in hearts, or spades!

Major Flash {my term} is another subset of Concept preempts, first reported at the table in 2002. It was common in the 2003 Bermuda Bowl knockout.

Response See Concept

Frequency 5% if the major is 6 card.

Helgemo was said to be playing 2H as {either hearts or spades} in postings of summer 2002. Perhaps now the world can defend Ekren, or was it passé. He had switched to the natural 2D preempt, which is more difficult to defend than one might expect.

James Dooley then reported Lauria-Versace playing Major Flash in Bridge World's "Challenge the Champs" later that year. Several pairs (Italians) then played it in the Bermuda Bowl.

This is clearly an area of development and anyone playing at high level should be ready for Concept prempts of various kinds.

A side issue is what to use as your 2S opening if you chose to play Major Flash. If the rules are that relaxed, how about the diabolical Polish scissors showing any 2 suiter?

Defence See generic defences page


Myxomatosis Two's

brown sticker Myxomatosis is a 2 system developed quite a few years ago by Bob Sebesfi (also of SWINE 1NT escape fame). Highly packed and vicious. In view of the name one is reminded of the old joke about "What has 100 balls and fucks rabbits"? (mouse over for answer)

Although the Myxoma group look nasty, the highly specified nature of the options make them defendable and so legal in many jurisdictions. e.g. Level 4 in EBUland


sick rabbit
  • 2C = GF or weak 2D or 5/5 H/S 5-10
  • 2D = Strong 2D or Weak 2H or 5/5 S/C 5-10 or 21-22 balanced
  • 2H = Strong 2H or Weak 2S or 5/5 C/D 5-10
  • 2S = Strong 2S or Weak 3 in C or 5/5 D/H 5-10
  • 2NT = 5/5 C/H or D/S 5-10
  • 3C to 3H = Transfer preempts
  • 3S = Gambling 3NT transfer (right sided for once)
  • 3NT = Minor suit preempt to 4 level.
  • 4C/D = SA Texas (ie 4C = hearts)

Responses 2NT force over the Two bids, 3H over 2NT

Frequency 1.1% per 6 card suit(D/H/S), 0.4% per 5/5 = 6% for a full set of all weak flavours, up to 10% played loose

Pro points Very efficiently packed bids and quite easy to remember!

Against A strong player would bid over this whenever possible, but rabbits are clearly for the pot! The main problem is the relatively feeble transfer preempts which allow both business and takeout counter-attacks


Variant Sean Bentley has modified this with all four strong two's (including 2C) 8½ tricks but not game forcing, and to include 20-27 balanced hands in 2 point bands into the two bids. He also plays the 5-5 hands as either weak or game forcing (jump?) and to top off the 27+ NT hands, also in bands. Wow!

  • 2C = 8½+ tricks in C or Weak 2D or {5/5 H/S 5-10 / GF} or 21/22 bal or 29/30 bal
  • 2D = 8½+ tricks in D or Weak 2H or {5/5 S/C 5-10 / GF} or 23/24 bal or 31/32 bal
  • 2H = 8½+ tricks in H or Weak 2S or {5/5 C/D 5-10 / GF} or 25/26 bal or 33+ bal
  • 2S = 8½+ tricks in S or Weak 3C or {5/5 D/H 5-10 / GF} or 27/28 bal
  • 2NT = (5/5 C/H or D/S} {5-10 / game forcing}

In this approach big hands are categorised as balanced (adjust the NT ranges?), Acol Two bids or 5/5. Over eg

2D - 2H
pass = weak two in hearts
2S = 5/5(weak)
2NT = 22/3 balanced
3C = 5/5(GF)
3NT = 30/31

There might still be problems with 4441 or the 5/4 types (as always!). Perhaps one could add a further layer with eg 2D including 4144 short hearts or try the variant below. But isn't the symmetry breathtaking!

Sean assures me that the 33+ balanced hand has "actually come up at the table". I asked him what happens when his wretched opponents come in - preempt you even! It seems that natural bidding works in practice, with takeout doubles or just bidding the strong suit. I imagine that this sort of bridge has something in common with the somewhat ungoverned American EHAA style! But basically you have given partner your hand type, and that is very useful

I cannot resist a short literary diversion here in the sight of such glorious, almost crystaline structure

Tiger! Tiger! burning bright
in the forests of the night
What immortal hand or eye
Could frame thy fearful symmetry?

(William Blake)
Note mostly OK

Another variant on this theme arrived via an Email from John Sfinias. He mixes in 17+ 4441 hands rather than 5-5s and ascribes the method to Solloway(USA). I am not too sure about the efficiency of this, as it possible to put all these strong 3-suiters through a conventional 2NT rebid, but it has the merit of being easy to remember, John says it hasn't let him down at the table. A minus compared with Sean's approach is that the 4441 strong type is so much rarer than 5-5 weak two suiters.

  • 2C = "forcing" in C or Weak 2D or 17+ 4414 short D or 21/22 balanced.
    Over 2D you pass or bid 3C strong, 2NT = balanced, and 2H = short D
  • 2D = "forcing" in D or Weak 2H or 17+ 4144 short 2H or 23/24 bal
  • 2H = "forcing" in H or Weak 2S or 17+ 1444 short S or 25/26 bal
  • 2S = "forcing" in S or Weak 3C or 17+ 4441 short C or 27+ bal
    Over 2D/H/S we have a similar but permutated set of responses
  • 2NT = 5-9 55 in the minors (major or minor two suited also works - see Unusual opening

The bid of (eg) 2H to show short D is interesting. If responder is weak he can pass or scramble a fit. The pass response might be a problem if opener is massive! There is also enough room to make asking bids in the shortage suit to clarify the hand strength and type. I have a method which can also tollerate 4450 hands with 5 card minors if you are interested in such things (hard work though!). On balance I would think it best to modify this method and make (eg) 2H show short S using the suit below the singleton method. This is most efficient constructively.


Yet another, as played by Tony Rolfe and friends at New South Wales's Mollymook Bridge Club

  • 2C = always strong, either 21-22 balanced or any unbalanced GF which does not contain two 5+ suits
  • 2D = Acol 2D or Weak 2H or 5+/5+ blacks or 23/24 balanced
  • 2H = Acol 2H or Weak 2S or 5+/5+ minors or 25+ balanced
  • 2S = Acol 2S or 5+/5+ hearts and a minor
  • 2NT = 5+/5+ spades and a red suit.

Tony's email says that one pair plays 2C with a weak 2D as an extra option The two suiters are either weak 2 strength or 8+ Playing tricks. There are three rebid variations (weak, Acol strength or GF)


Optimal Two bids

brown sticker Defined up to 11 hcp and either a weak two in D / H / S (open the suit below) or a 5/5 two suiter (two assigned per bid = all six)

Popular in western Austalia and devised by it's native Avon Wilsmore. It is recommended that these aggressive bids be used "constructively" with honour concentration in the suits shown. Although here is some pattern to the allocation of various 5/5s, Basically you have to memorise it. 2S and 2H when 5/5 show the suit bid, and one of the two immediately below. 2D deals with the remaining pair with clubs. I list this one 'top.down' to accentuate the pattern

  • 2S = weak 3C or 5/5 S/H or 5/5 S/D (The club hand promises two honours)
  • 2H = weak 2S or 5/5 H/C or 5/5 H/D (Both major openings have suit opened if 5/5)
  • 2D = weak 2H or 5/5 C/S or 5/5 C/D

Responses Next suit - asks opener to pass or correct- or use imagination and preempt. 2NT relay

2S - 2NT?
3C = Clubs - "sound" 3C (2 honours)
3D = S/D 3H = S/H 2H - 2NT
3C = H/C 3D = H/D 3H = good weak 2S (3S now forcing asking for splinter or 3NT with good suit)
3S = poor weak 2S

2D - 2NT - rather more complex...
3C = 5/5 .. further relay 3H(!)
- 3S = C/S
- 3NT = C/D. (Other bids to play)
3D = max weak 2H (3H forcing as above)
3H = minimum weak 2H

Over intervention Over double pass = 3+ cards in the suit bid. Redouble with less. Next suit is support for weak two up to 3 level. If next hand bids opener must bid up as a pass shows a 2 suiter. Over 4th seat double pass=the.weak.two. 2NT = 5/5 max lower ranks, xx=55 max higher ranks, bid=5/5 but minimum Over suits all bids are natural, all doubles penalty. 2NT retains it's meaning

Frequency About 10%. Only the weak 2D is absent

Pro points Covers everything except a weak 2D

Against Quite a memory burden and prone to interference if opposition are canny Also the simple S/H preempt opens an ambiguous 2S and is forced to the 3 level.

Defence Generic - get into the bidding!


"Parkes" 2 spades

brown sticker Defined {preempt in a minor} or {solid major - Q max outside} or { 20+hcp 5440 with minor void}

Response 2NT relay: 3-suit = natural above; 4C/D = 544-


Pro points Another multi encorporating the nasty (but very rare) 544- strong. 3C/D presumably constructive

Against You could put the solid major type into the gambling 3NT (Generally licenced as minors only in UK) I don't like jumping in the short suit on theoretical grounds. Suit below is more powerful and allows asking bids.

Defence See generic defences page


Polyclub 2 diamonds

brown sticker Defined 7-9 5/5 with a major or 8-10 7-card minor max xx major


 2H to play there or spades; 3 suit game try 
2NT enquiry .. 3C/D = natural
3H/S = 5/5+minor
3NT = H+S

This is a close relative of Wilkosz 2D

Defence See generic defences page


PSI Twos

brown sticker Defined 2H/S = undisciplined 5+ suit, or totally unrelated to the suit with a 7+ minor which you will retire to if doubled.

Responses Surprisingly usual bid such as Ogust are on! Responder ignores the minor possibility

PSI is basically just a controlled psych. You might compare the related, tamer and more respectable Concept and Two way styles on this page.

Defence See generic defences page


The Polish Scissors

brown sticker Related Wilkosz - part of Petter Olsen's High Supernatural system

Defined 2S = 5-10hcp 5/5, 2 suiter no restriction on suits

Response Bid 3C/D on weak hands 2NT(GF) relay. Opener bids suits up or 3NT = C/S short in hearts

See also Wilkosz itself and more regular pattern Finish Scissors, the latter related only in name.

Defence See generic defences page


Rainbow 2 diamonds

brown sticker rainbow Defined
  • 2D = 5-10hcp 5 card major and 4 + minor
  • or a strong Acol two (any suit)
  • or a 22-24 NT hand.


  • 2H = pass correct: Over S 2NT asks minor and 3 any to play
  • 2S = heart interest: Pass with spades. With Miuderberg simple you show your minor 2NT and 3H up are big hands.
  • 2NT = enquiry. Bid your Muiderberg minor or 3H+ if strong Over this 3 any is natural and forcing.
  • 3C = GF enquiry: This time with Muiderberg you transfer the suit below your major Over say 2D = H; 3H is stronger than 42H and 4 any is a cue 3NT are strong types. 3S is not defined
  • 3D = game try in a major .. Natural bidding. 4C/D are the big hands.

Frequency 2.3%

From Belgium; this is a combine of the Multi 2D with Holland's Muiderberg 5/4 weak two style. It is permitted at higher levels in the Low Countries, but seems not to have been accepted at the Maastricht Olympiad due to lack of an anchor suit in a two suiter.

There is an online writeup of Rainbow, played with DOBTO and an Ekren 2C (in Flemish ;)).

Defence See generic defences page


Red Flash

brown sticker Defined 2D = Weak two in diamonds, or hearts!

Response See Concept

Frequency 5% (for 6 card suits)

A subset of Concept pre-empts. Red flash was reported from Tiawan in a posting by B Yang

This was though to be yet another inscrutible Chinese practice until James Dooley reported Fawcett-Liggins playing 2D as as "either red suit" in Bridge World's "Challenge the Champs" bidding contest (June 2003). Seems they found it here.

Sorry world!

Defence Initial penalty double?


Sixteen versus seven (16v7)

brown sticker

Defined 2NT weak and showing at least 3 cards in clubs, diamonds and hearts.

I guess you'd only do this with shortage in spades however

Australian correspondent Mark Abraham reports an "aggressive (lunatic?) weak 16v7 2NT opening which shows 3+ in each of the non-spade suits" seen amongst the younger players there. " The name derives from the Blackjack position where you hold 16 and the dealer has a seven and you have to act to improve your position, even though you rate to be outgunned... "

16v7 is used within a system incorporating the much tamer assumed fit 2D/H openings showing the suit bid and spades. It is however itself banned, lacking an anchor suit


Terrorist (AKA T'rrrrst)

brown sticker

Defined Preemptive bid in a completely unspecified suit. Terrorist is an American opening played as either 2 spades or 2NT. The latter would be identical to Britain's Economou 2NT {q.v above}. I don't know which came first.

Defence See generic defences page

You may safely infer from my chosen illustration that I personally disapprove of all this, and have a low opinion of such bullies



brown sticker Defined
2H as weak in spades or major/minor with hearts
2S as weak in hearts or major/minor with spades

Frequency played 6+ or 5/5 = 4.6%; Played loose = around 6%

Pro points A nice combine of transfer twos and 5/5 types

Against Hard to extend the preempt

Mentioned in an posting by Henk Uiterwal.


Tutti Frutti

brown sticker Tutti Frutti ice cream Defined
  • 2D as weak in hearts or spades/minor
    2H as weak in spades or hearts/minor
    Then: use ParadoX advances in the majors, 2NT = strong asking, 3C = F with hearts, 3D = F with spades
  • 2S major or minor two suiter
    then: 2S: Paradox advances of minors, 2NT = Strong asking
  • 2NT as a bad preempt in either minor
    then: 2N: 3C = pass/correct, 3D = strong asking 3H/S = Nat F

My thanks to Gerben Dirksen for this style, which is seen on Auken/von Arnim's brown sticker card, and "becoming popular in Poland". Tutti is related to Myxomatosis and Tyroler-Berg


TWERB = Two way Exclusion Relay Bids

brown sticker Defined Two of a suit showing a selection of of the following cartoon - russian general blows his brains
  • Weak in the suit bid - ie willing to play there
  • 3 suiter, short in the suit bid
  • (Weak in the suit two up)

These were described by Douglas Newlands (Oct 99) as being "rife in South East Australia". Along with Myxomatosis twos "the multi virus". TWERBs were first seen in UK in the 70's as a defence to the then popular strong club systems, ascribed to the late Young Chelsea international Joe Amsbury. They make more sense in this context as there is a high probability that the hand belongs to the opponents. As an opening (especially 1st/2nd) it might still be your hand, and we are left with them being most useful in 3rd hand - dropping the frequency

Note the distinction from Myxo's - you are willing to play in the suit bid even though you may be short in it.

Responses The strategy seems to be to pass initially, and redouble for takeout.

Frequency Depends how aggressive you are

Pro points

Against I regard TWERB as an opening as akin to playing Russian roulette with your opponents. Certainly you will generate some high variance scores. TWERBs are something of an unfair weapon at pairs, as you will have the advantage of familiarity. They might be useful against a seeded team in a knockout.


Two way Twos

brown sticker Defined
  • 2D = fair weak 2 in diamonds, or very poor 0-7 in (unspecified) major
  • 2H = fair weak 2 in hearts, or very poor 0-5 in clubs
  • 2S = fair weak 2 in spades, or very poor 0-5 in diamonds
The very poor pre-empts show "at most on honour" and not surprisingly inventor Glen Ashton recommends these only non vulnerable! Actual play history is not known.

Responses Pass with a poor hand. Bid in a suit opener can have is pass/correct 2NT enquiry - more on site See the similar but more restricted Red flash above. If you think this is hot, try Argentina's PSI!


Unspecified 2-suited 2 hearts

brown sticker Defined 5-9 5/5 in major and a minor (so not totally undefined!)

Response Pass correct suits. 2NT forcing relay.

Frequency 1.6%

Pro points One odf a number of methods happy to go the three level with 5-5

Defence See generic defences page

Vanilla twos are deleted as it seems they never had real currency, even in Australia!

Wicked Twos

brown sticker Defined Unusually, even after your second call the hand type is not defined. The method takes advantage of the likely responses to a 2C or 2NT opening to bundle in an unspecified trash pre-empt
  • 2C = {normal strong hand} or {weak in diamonds} or {weak in spades}
  • 2NT = {normal strong hand} or {weak in clubs} or {weak in hearts}

Responses With the weak hands you generally pass next round (partner has some forces). So after passing the likely 2C - 2D positive response opponents still don't know whether your suit is diamonds or spades. "Weak" here means absolute trash, making a penalty double easier to set up. Glen Ashton developed this strategy for use in the Canadian top teams event, which it seem is not subject to ACBL restraints. Full (and complex) system on his pages. Glen also sired Two-way twos and the utterly respectable Goldilocks style.

Frequency Depends on your definiion of trash


"Wilkosz" -the Polish 2 diamond

brown sticker Defined2D = 6-10hcp 5/5+ major or major/minor 2 suiter.

The opening is essentially a meld of Multi and the two suit methods and was invented by the Polish international Andrzej Wilkosz in the 60's. Anyone seriously interested in Wilkosz should also read the archived extensive discussion on the opening ( 1998) which includes several defences. Wilkosz is related to the Multi (see Rainbow) and the same defences may work at a pinch. England's Polyclub 2D includes Wilkosz as well as minor suits! The style gets extra space as it is popular at top level.


 2H/S weak 2+cards
2NT relay ...
-- 3C = clubs (then 3D ?major);
-- 3D = diamonds/hearts
-- 3H = spades/hearts
-- 3S = diamonds/spades
3C = natural
3D = game try both majors
3H = pass/correct
3S = three suited short hearts !!
4D = preempt/game in either major


Polish Bridge Federation's Nowoczesny Brydz - Konwencje" {Modern Bridge - Conventions} describes Miroslaw Hanusz's method , showing short suits after 2D .. 2NT?

 -- 3C = short in C+major ( .. 3D relay)
-- 3D = short in D+C -- 3H = short in H+D -- 3S = short in S+3D ... I don't see any major advantage myself.

Intervention (x) pass should show diamonds, otherwise simple sense pass/correct approach. A fuller scheme is available.

Frequency About 2%

Licence 'Brown Sticker' - banned in most tournaments even internationals

Variant The above would combine well with a 2C = constructive/big but if you want to use a Multi 2D for single major preempts a Polish 2C has the same responses and effect - a little less preemptive! Thanks to Richard Willey for sorting me out on this one

Pro points More common than the Roman 4441 alternative for 2D. Hard to defend

Against When ops bid over you have problems - as with any Multi

Defence See generic defences page

new At the 2000 Maastricht Olympiad Wilkosz was OK'd by some "bridge lawyers" as a variant of Multi 2D! See Henk Uijterwaal's post in the r.g.b discussions

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