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Moscito 2005


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A few questions:

 

- Does a semipositive response to 1 create a forcing pass situation? Most of the semipositives are quite specific so they must be easy to deal with whether you play forcing pass or not, but the 1 response is somewhat nebolous so you might need forcing pass. Now 15+6 HCPs might be too little to estabish a forcing pass, at least at IMPs.

 

- 1-1 seems rather sensitive to interference. Wouldn't it be better to make some of the semipositives (semi)-positive?

 

- The way opener or responder shows shape after a 1 opening are quite difficult to memorize. I don't see any symmetry except that

1-1

1- bla bla bla

is identical to

1-1

bla bla bla

Did I miss something?

 

- It's not mentioned what responder should do after a limited opening with less than inivitational values. In particular, is a raise to two of opener's major purely destructive? Is it a good strategy to pass with all weak hands, even at red vs white?

 

- On page 8 there is an auction that I don't understand:

1-1

1-1NT

2?-2NT

3-3

3-3

etc.

 

Why does opener bid 2? What does it mean as opposed to 2 which would have been the normal step bid, I suppose?

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A few questions:

 

As I have played this, I'll endeavour to answer:

 

- Does a semipositive response to 1♣ create a forcing pass situation?

 

No Helene!

 

Most of the semipositives are quite specific so they must be easy to deal with whether you play forcing pass or not, but the 1♥ response is somewhat nebolous so you might need forcing pass. Now 15+6 HCPs might be too little to estabish a forcing pass, at least at IMPs.

 

- 1♣-1D seems rather sensitive to interference. Wouldn't it be better to make some of the semipositives (semi)-positive?

 

The fact that you are in a gf situation helps, actually. Prefer this to playing nebulous positives.

 

- The way opener or responder shows shape after a 1♣ opening are quite difficult to memorize. I don't see any symmetry except that

1♣-1D

1♥- bla bla bla

is identical to

1♣-1D

bla bla bla

Did I miss something?

 

No it is a process of memorization

 

 

- It's not mentioned what responder should do after a limited opening with less than inivitational values. In particular, is a raise to two of opener's major purely destructive? Is it a good strategy to pass with all weak hands, even at red vs white?

 

No, the raise is constructive; with a weak hand just pass

 

- On page 8 there is an auction that I don't understand:

 

 

Why does opener bid 2D? What does it mean as opposed to 2♣ which would have been the normal step bid, I suppos

 

I'll ask Paul, but suspect this is a misprint. It may be a way of showing no slam interest.

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There are a couple of things that interested me in this document. First of all, the 2M opening bid to show 5-3-3-2 hand - I'm sure they must have their reasons for playing this, but it looks downright ugly to me. And secondly, it seems they're now showing the minor first with 6m-4M patterns. I'm pleased to see this, because it looks like an admission that canape 4-card majors doesn't completely solve the problem of the 2 opening in strong club systems.

 

PS. [Completely off-topic] Has anyone else here in the UK noticed that the TV presenter Jimmy Carr is a perfect lookalike for this smiley: :rolleyes: (when he's laughing, that is...)

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Whereagles - I suspect that a 2 opener is a mini-multi, but I may be wrong.

 

Helene - 1:1 is a bit susceptible to interference, but it has to be sound - if you go jumping around just because you've got a 5 card suit (as you might if the strong club had been opened on your right) then the forcing pass will clobber you.

 

The page 8 auction looks correct if the 2 bid had been 2, so I'm fairly sure it is a misprint.

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David - Paul chose to use these 2M openings after reading Karl Schneider's post on RGB:

 

"My simulation work has shown that opening 11-12 5M332 with 1N is

clearly inferior to opening 1M. When partner has less than 10 points,

even a 5-2 fit in the major and playing 2M is superior to playing 1N.

 

A 10-12 point notrump should not be considered a "constructive" bid [i

play it myself] but rather a pre-emptive bid. As such, your hand

should be reasonably "constrained" shapewise and not contain a 5card

major. This allows your partner the ability to best find a "safe"

resting spot and focus on his own 4 and 5-card suits.

 

Any time your combined holdings are 21 points or less, it is generally

preferable to play at 2M instead of in 1N with a 5-2 fit or better. By

"hiding" your 5card major within mini 1N opening, your are destined to

play an inferior MP contract."

 

I wasn't persuaded :rolleyes:

 

The 4M6m issue seems to be one of partscore versus game. Opening the major can lead you to the wrong part-score, opening the minor can miss your game in the major fit. Please note that if the 1M opener is either 4 or 6 cards, you can get away with making 3 card raises less frequently, meaning that you are less likely to reach the wrong part-score on these hands B)

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David - Paul chose to use these 2M openings after reading Karl Schneider's post on RGB:

Oh yes, I remember this now. He started off with some general question about 5-card majors in a weak no-trump, then after a few replies said something like, "OK, you've persuaded me to open 2M with 5-3-3-2". :rolleyes: I have to say, I think if people knew that was the alternative, they wouldn't have been so happy to say they disliked opening 1NT with a 5-card major.

 

And this makes no sense to me at all:

A 10-12 point notrump should not be considered a "constructive" bid [i

play it myself] but rather a pre-emptive bid. As such, your hand

should be reasonably "constrained" shapewise and not contain a 5card

major.

I agree completely with the first of those two sentences, but I don't think the second follows logically from the first.

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Agree with all that David. The mini NT being preemptive instead of constructive is a reason to make it off-shape; The reason not to is that frequently you are in a part-score battle and you succeed only in preempting yourself out of your major suit fit.
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I don't think a 2M opening shows a 5332, he merely states that he opens 2M with such a hand. Probably, 2M can be opened with other types of hands as well.

 

Anyway, it looks like a cool system. Hands up everyone who thinks the new BBO-advanced standard should be Moscito ;)

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I don't think a 2M opening shows a 5332, he merely states that he opens 2M with such a hand. Probably, 2M can be opened with other types of hands as well.

It doesn't look like it - they play that a 2NT response "asks for the doubleton", which seems to indicate they are expecting exactly 5-3-3-2 shape.

Anyway, it looks like a cool system. Hands up everyone who thinks the new BBO-advanced standard should be Moscito :)

;)

 

Actually it seems that the system hasn't really settled down to a "final" version yet. Maybe once there is a standard version of Moscito, it will begin to catch on. But it's not yet at the stage where you can sit down and play a version with a new partner and be confident that you will understand each other. (I've tried ...)

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I think moscito should have his 1S opener turned into 6+m or minor 2-suiter. But I guess it's the way it is to make it ACBL legal or something.

 

Having 1S for the minor(s) would free up the whole 2 level for preempts. AS IT SHOULD BE ;)

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I think moscito should have his 1S opener turned into 6+m or minor 2-suiter. But I guess it's the way it is to make it ACBL legal or something.

The WBF defines an opening that promises length in either of two suits as a HUM. The exception being a nebolous minor suit opening if the other minor is strong and artificial.

 

So your nebolous 1 opening would be a HUM, I'm afraid.

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The link on the Austrailian Bridge site does not seem to be there anymore.  Can some one email me a copy?  thanks  mike

 

mmhansen44@hotmail.com

File sent - but there may have been a problem - let me know if you get it.

 

Denis

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Moscito 2005 looks rather intersting. The 1 positive and the way it lets the 1 opener take control with 1 or show his hand in the same way as responder would (reducing memory load) will allow devastating slam accuracy in uncontested auctions, plus excellent concealment when a fit is found early on minimal game hands. Competiton will raise issues, but you can't be much worse off than after intervention over a 2/1 2 opener--you know game values are present and forcing passes apply.

 

Showing shape as soon as possible on semipositives seems good as well. I really like the 1 negative--slightly premptive as compared to 1 negative and more tightly defined.

 

The idea of 1 positive in response to a big 1 is not new. Goren had it in an appendix to his Precision book--apparently some Precisionistas were experimenting with the idea back then.

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1C 1D of course as most will realise, has little risk and is optimal. The fact that you are in a gf situation means that over 4th hand intervention, Xs can be penalties, passes forcing and bids show reasonable suits.
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