Bbradley62 Posted February 14, 2015 Report Share Posted February 14, 2015 15 of 17 Souths in this IMP Robodupe bid 1♠, although this bid is too little...[hv=sn=bbradley62&s=SAQJ84H7DKQJ43CQ8&d=w&v=o&b=8&a=1C(Minor%20suit%20opening%20--%203+%20%21C%3B%2011-21%20HCP%3B%2012-22%20total%20points)1H(One-level%20overcall%20--%205+%20%21H%3B%208-17%20HCP%3B%209-19%20total%20points)P1S(2-%20%21H%3B%205+%20%21S%3B%209-13%20total%20points)PPP&]300|200[/hv]One chose 2♠, although this bid is too much (the spades are not "twice rebiddable" per GIB's definition)...[hv=d=w&v=o&b=8&a=1C(Minor%20suit%20opening%20--%203+%20%21C%3B%2011-21%20HCP%3B%2012-22%20total%20points)1H(One-level%20overcall%20--%205+%20%21H%3B%208-17%20HCP%3B%209-19%20total%20points)P2S(2-%20%21H%3B%20twice%20rebiddable%20%21S%3B%2014+%20total%20points%3B%20forcing%20to%203H)P4S(5+%20%21H%3B%202+%20%21S%3B%2010+%20HCP%3B%2011-16%20total%20points)PPP]300|100[/hv]Is there a bid for South that is just right in GIB's system? Quote Link to comment Share on other sites More sharing options...
iandayre Posted February 14, 2015 Report Share Posted February 14, 2015 No, there is no great bid with this hand for GIB or anyone (including myself) who plays new suit advances after partner's overcall as constructive but NF. At MP I would probably bid 1S with GIB, but 2S with a human partner. GIB would be too likely to raise 2S with a singleton. But at IMPS I'd have to try 2S with GIB also and hope for the best. Quote Link to comment Share on other sites More sharing options...
1eyedjack Posted February 14, 2015 Report Share Posted February 14, 2015 Am I out of the mainstream in thinking that it is more standard for a new suit by a non-passed hand opposite an overcall to be a one-bid force? Sure, by all means leave it as non-forcing by a passed hand. On the plus side, it would make for a much simpler system. On the minus side, you could get one level too high on hands where you wanted to non-force AND overcaller had a hand suitable for passing a non-forcing advance. Netting the two off, as a GIB programmer I would have opted for the forcing option - unless it is one used by such a minority of players that it would be unpopular. Quote Link to comment Share on other sites More sharing options...
Bbradley62 Posted February 14, 2015 Author Report Share Posted February 14, 2015 Am I out of the mainstream in thinking that it is more standard for a new suit by a non-passed hand opposite an overcall to be a one-bid force? Sure, by all means leave it as non-forcing by a passed hand.Apparently, 15 of the 17 of us thought it should be F1... but I haven't played f2f duplicate in so long that I cannot pretend to even know what is mainstream/standard these days. Quote Link to comment Share on other sites More sharing options...
Stephen Tu Posted February 15, 2015 Report Share Posted February 15, 2015 Over here I think non-forcing advances are more common. But North ought to raise with spade fit fairly lightly IMO. Quote Link to comment Share on other sites More sharing options...
cloa513 Posted February 15, 2015 Report Share Posted February 15, 2015 How about 2♦- which should definitely be one round forcing- generally choosing 1NT for good but not moderately strong hands. After a 2♥ rebid then 2S should be more invitational. Quote Link to comment Share on other sites More sharing options...
1eyedjack Posted February 15, 2015 Report Share Posted February 15, 2015 What rules determine that 2D is F but 1S not? I expected that 2C is the first bid on most(?) forcing hands (when not playing transfers) Quote Link to comment Share on other sites More sharing options...
Bbradley62 Posted February 15, 2015 Author Report Share Posted February 15, 2015 I expected that 2C is the first bid on most(?) forcing hands (when not playing transfers)Would GIB think 2♣ shows heart support? Quote Link to comment Share on other sites More sharing options...
1eyedjack Posted February 15, 2015 Report Share Posted February 15, 2015 Would GIB think 2♣ shows heart support?That would be my normal understanding (assuming not transfer). But my normal understanding is that a new suit was forcing. Somewhere you have to be able to make a forcing bid that does not promise support. Quote Link to comment Share on other sites More sharing options...
Stephen Tu Posted February 15, 2015 Report Share Posted February 15, 2015 It would be odd to play 2♦ as forcing but 1♠ as not IMO. If anything, I think people are more likely to play 1♠ as forcing and 2♦ as non-forcing, as 1nt is still relatively low as a resting spot with no fit. When partner is allowed to overcall light at the 1-level on a 7 count, you don't necessarily want him to be forced to bid again. People who play non-forcing new suits either use cue-bid to start a forcing sequence (not guaranteeing support), or use jump in a new suit as forcing. Quote Link to comment Share on other sites More sharing options...
cloa513 Posted February 16, 2015 Report Share Posted February 16, 2015 What rules determine that 2D is F but 1S not? I expected that 2C is the first bid on most(?) forcing hands (when not playing transfers)The limits of how long in values that you bid 1♥ bid- about 8HCP with a six card suit and possibly club values and length- all which makes a forcing bid that doesn't offer support really bad. Quote Link to comment Share on other sites More sharing options...
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