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Questions on riton 2C and Roman 2M

#1 User is offline   yunling 

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Posted 2014-September-13, 08:22

I'm revisiting the posts about riton 2 and it seems everyone has accepted that it should be combined with Roman 2M openings(2M as 12-15 5M&4+C)as Henri Schweizer suggested which I had some difficulty to understand.
I would rather switch 2M opening and 1M-1NT-2M, so now a direct 2M shows a minimum opener with 6+M.

Advantages:
1. Showing a 6 card suit immediately is good for competitive auctions
2. With a 6 card major, it is less likely for you to look for fit in the other major, while you gain some 5-3 fit in other major that are lost when playing roman 2M
3. Less information leakage if the hand belong to opponents

Does this make any sense?
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#2 User is offline   ritong 

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Posted 2014-September-13, 08:46

hello yunling

imo, showing two suits at once is better regarding competitive auctions- we all know that many expensive boards are generated by wrong décisions with undisclosed double fits- this rejoins your third point yes, more informations to opponents if hand belongs to them i m not sure this can be avoided.

regarding 5/3 fits in other major, the responder can have a complete picture of the opener's hand via a 2NT relay, including 3514 shape.

friendly

henri

#3 User is offline   mgoetze 

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Posted 2014-September-13, 09:29

Would you also want 1-2; 2 to show clubs? What would 1-2; 3 show?
"One of the painful things about our time is that those who feel certainty are stupid, and those with any imagination and understanding are filled with doubt and indecision"
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#4 User is offline   benlessard 

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Posted 2014-September-14, 12:22

2M is way safer with 6M than with 5M+4C and its not close at all. Its also got a higher frequency and more premptive power (easier for partner to raise) and its less likely to lead you to a bad partscores in uncontested.

No brainer imo.
From Psych "I mean, Gus and I never see eye-to-eye on work stuff.
For instance, he doesn't like being used as a human shield when we're being shot at.
I happen to think it's a very noble way to meet one's maker, especially for a guy like him.
Bottom line is we never let that difference of opinion interfere with anything."
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#5 User is offline   snillrik13 

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Posted 2014-September-16, 02:52

2M showing 5-4+ in M/!C is essential playing imps and Gazzilli. Much easier to find crucial games and slams. Also as Ritong says less sensitive for preempts. Playing match Points maybe weak two is better.
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#6 User is offline   benlessard 

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Posted 2014-September-16, 11:15

View Postsnillrik13, on 2014-September-16, 02:52, said:

2M showing 5-4+ in M/!C is essential playing imps and Gazzilli. Much easier to find crucial games and slams. Also as Ritong says less sensitive for preempts. Playing match Points maybe weak two is better.


Im not talking playing weak 2 im talking 2M being equivalent to 1M-1?-2M so 1M-1?-2M become 5M+4C.
From Psych "I mean, Gus and I never see eye-to-eye on work stuff.
For instance, he doesn't like being used as a human shield when we're being shot at.
I happen to think it's a very noble way to meet one's maker, especially for a guy like him.
Bottom line is we never let that difference of opinion interfere with anything."
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#7 User is offline   yunling 

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Posted 2014-September-16, 17:56

View Postmgoetze, on 2014-September-13, 09:29, said:

Would you also want 1-2; 2 to show clubs? What would 1-2; 3 show?

A natural GF 2 is not a part of my system, but if I'll play that, my idea is
2 = bal or 4+
2 = natural
2NT = 6+
3 = 4+, then 3 is non-serious
3 = 5

Can't put all 1-suited hands in 3, that's too high.
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#8 User is offline   mgoetze 

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Posted 2014-September-16, 19:53

Also, what would you do with 6 hearts and 4 spades? If you open 2, you can miss a 4-4 spade fit. If you open 1, responder bids 1NT, and what are you going to do now if 2 shows 54?
"One of the painful things about our time is that those who feel certainty are stupid, and those with any imagination and understanding are filled with doubt and indecision"
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#9 User is offline   benlessard 

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Posted 2014-September-16, 22:59

View Postmgoetze, on 2014-September-16, 19:53, said:

Also, what would you do with 6 hearts and 4 spades? If you open 2, you can miss a 4-4 spade fit. If you open 1, responder bids 1NT, and what are you going to do now if 2 shows 54?
For every 41??/51?? vs 46?? you will get the same amount of ?1?3 vs ?6?4 where 3C will be bad, but at least you are one level lower and you don't have the 5??3 vs 3514/3505 to worry about.

The best is simply to play KI and use 1NT as artificial instead of 2C.

1H-1S-1NT 1NT could be Gaz,Riton or transfers etc.. it doesnt really matter, almost anything will be better with 1NT art than with 2C as art.
From Psych "I mean, Gus and I never see eye-to-eye on work stuff.
For instance, he doesn't like being used as a human shield when we're being shot at.
I happen to think it's a very noble way to meet one's maker, especially for a guy like him.
Bottom line is we never let that difference of opinion interfere with anything."
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#10 User is offline   yunling 

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Posted 2014-September-18, 21:43

View Postmgoetze, on 2014-September-16, 19:53, said:

Also, what would you do with 6 hearts and 4 spades? If you open 2, you can miss a 4-4 spade fit. If you open 1, responder bids 1NT, and what are you going to do now if 2 shows 54?


KI can help here. Inquiry 2/1 also use a version of Kaplan Inversion.
So
1-1-?
1NT = strong
2/2 = natural
2 =

1-1NT-?
2 = strong
2 = natural
2 =
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