[flytoox]

I am reading Marty bergen's negative dbl. He said you can dbl with only one major after 1c-2d-?
say with
S: AQ
H: KXXX
D: XXXX
C: XXX

Then, when he discuss the rebid of the opener, he says with
S: KJXX
H: XX
D: X
C: AKJTXX

you should jump to 4S.

How can you jump in a major when pd's negative dbl gurantees only one major? Any comments?

[luke warm]

not sure where you're reading, but if that's what he said i suspect he's giving responder a choice: 4S or 5C... but i can't understand him saying anything that bypasses 3nt

[flytoox]

Quote

not sure where you're reading, but if that's what he said i suspect he's giving responder a choice: 4S or 5C... but i can't understand him saying anything that bypasses 3nt

His little book"Negative dbls" page15 and page45. This happens when pd opened one minor and RHO overcalled with another minor at the two level:
1C-2D-X OR 1D-2C-X

HE said this dbl only promise at least one major, not two major.

[luke warm]

i'm not sure but i think that's how most play it.. they also play a sequence such as 1c (1d) x promises both, because they bid with one 4 card major... most don't like that, but it does have the advantage of being practicle...

1d (2c) x should promise only one major... as for the jump he talks about, i admit i'm confused also...