[eyhung]

I rebid 1NT because I think the technical and practical (system simplicity) advantages of having the 1S rebid promise an unbalanced hand outweigh the losses on this type of hand. And the losses are not guaranteed: if partner has game-invitational values, I will end up in the same strain as the 1S bidders thanks to 2-way checkback. In fact, I may end up ahead if partner rebids 2S showing 4-4 invitational, as I will reject and play in 2S while some of my 1S counterparts are rejecting and playing in 3S. And if partner has game-forcing values, I think I will be ahead by limiting my strength and defining my shape early.

But if, as is more likely, partner is weak and I end up playing in 1NT, even that is not a sure minus position. My honors are mostly slow, and with my spade tenace, the opponents are much more likely to blow a trick on opening lead against my 1NT than against partner's 2H. Opening leader in particular is unlikely to have a long suit to run (else he would have overcalled.) But Justin is right, when partner has a mediocre hand with 4-4 in the majors, it will be hard to do better than the tables in spades, and that is a system loss.

[aguahombre]

sorry to hear you cannot pass 2c after rebidding 1s, mike. I guess it is old minor forcing after non-notrump rebid. I haven't gotten to that level of sophistication.

[mike777]

aguahombre, on Oct 13 2009, 10:33 PM, said:

sorry to hear you cannot pass 2c after rebidding 1s, mike. I guess it is old minor forcing after non-notrump rebid. I haven't gotten to that level of sophistication.

I go even further....




Assuming little discussion I think I can never play 2c after:


1c=1z
1nt=2c

[jdonn]

mike777, on Oct 13 2009, 08:46 PM, said:

I assume playing with a true expert pard with no discussion that after:
1club=1y
1z=2c

2c=some form of undiscussed checkback...I can never pass.

with no discussion, you assume wrong.

[pooltuna]

mike777, on Oct 13 2009, 10:40 PM, said:

aguahombre, on Oct 13 2009, 10:33 PM, said:

sorry to hear you cannot pass 2c after rebidding 1s, mike.  I guess it is old minor forcing after non-notrump rebid.  I haven't gotten to that level of sophistication.

I go even further....




Assuming little discussion I think I can never play 2c after:


1c=1z
1nt=2c

you sit down as my partner and have this auction you better get ready to put down the dummy

[kenrexford]

I'm a 1NT rebidder, because of the desire to have 1♠ show a fifth club. I take this so far that 1♠ does not even promise four (could be 3-1-4-5).

A benefit of a 1NT rebid not specifically mentioned is that partner cvan often simply rebid a 5-card heart suit when he knows that you have 2-3 hearts. So, you really don't miss 5-3 heart fits all that often opposite weak hands. (Of course, to know that you have 2-3 hearts, Opener has to rebid 1♠ with 3-1-4-5 shape if you don't open 1♦ with that pattern.)

Sure, some costs -- some benefits -- unknown which works best in the very long run. But, it "feels right" to me.