[lycier]

This hand is from Weekly Free Instant Tournament in this week .

Hand-1 The normal auction should be this :

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However if fourth seat opens light, as with many paradoxical definitions, the devil is in the details
Hand-2

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Hand-3

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Hand-4

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After 2♣ - 2♦, actually any rebid by responder is not forcing at two level, including 2N by opener.

[manudude03]

2H is described as forcing to 3NT, hence any bid below that is forcing. In hand 4, north is not a passed hand, so what's the problem? There have already been a plethora of topics (some of which you started) that have already discussed the forcing to game aspect by a passed hand.

For what it's worth, there is a lot to be said for new minor forcing to be game forcing as an unpassed hand.

[Stephen Tu]

NMF has to handle some number of inv hands as well when not playing some sort of 2-way checkback system. I think for the 5-5 hands by both unpassed and passed hands, after 2c-2d, 2H should be NF and 3H be GF.

[johnu]

While GIB may wrongly and illogically play NMF as game force by a passed hand, surely the human player can evaluate their own hand and pass below game if given the chance. I would pass 2♥ in the auctions above with a bad pile of quacks.

[lycier]

See hand-4
4♥ says " 6+♠,6+♥".
The descriptions of two suits has been a weak area for Gib.