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Two-Way Which Way? What's difference between 2-Way NMF and 2-Way Ckback?

Poll: Two-Way Which Way? (5 member(s) have cast votes)

Are Two-Way NMF and Two-Way Checback the same?

  1. Yes (4 votes [80.00%])

    Percentage of vote: 80.00%

  2. No (1 votes [20.00%])

    Percentage of vote: 20.00%

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#1 User is offline   JonnyQuest 

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Posted 2017-January-10, 08:41

At a recent bridge class I attended, the teacher stated that 2-Way NMF and 2-Way Checkback were different. But he did not elaborate.

Eliminating XYZ (since that was not part of the discussion) please explain the difference. Is one superior?

Thanks! :)
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#2 User is offline   Zelandakh 

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Posted 2017-January-10, 09:24

I assume your teacher has learned that one includes a relay to 2♦ and the other not.
(-: Zel :-)
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#3 User is offline   mycroft 

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Posted 2017-January-10, 10:24

I would expect that as well - which is why you discuss more than "2-way CB?" with partners.

I played 2♣ ART INV (F2NT), 2♦ ART GF back east, but both asked about major length or describe your hand.
I never played 2♣ forces 2♦ before taking on full XYNT (mostly because I didn't understand what was going on), but I do know several who did.
When I go to sea, don't fear for me, Fear For The Storm -- Birdie and the Swansong (tSCoSI)
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#4 User is offline   Winstonm 

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Posted 2017-January-19, 09:48

Isn't x, y, z better than all checkback?
"Injustice anywhere is a threat to justice everywhere."
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#5 User is offline   mycroft 

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Posted 2017-January-19, 10:27

I believe so. But as always, it's the continuations that are the issue (for instance, are you *sure* you are on the same page about 1x-1y; 1z-2NT?); and one screwup will cost you 3 or 4 betters, and you get 3 or 4 betters only after 12 or 15 uses, which is probably 150-200 hands. So, are you and partner that sure you're on the same page all the way across?
When I go to sea, don't fear for me, Fear For The Storm -- Birdie and the Swansong (tSCoSI)
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