awm, on 2026-October-07, 14:14, said:
Anyway, a lot of Europeans who do play game forcing 2/1s have retained this use of 2nt showing balanced with extras and the balanced minimum rebidding 2M. I think this is clearly superior if “15-17 balanced with a 5M” is a possible 1M opening, since the American alternative of rebidding 3nt with this hand type is simply awful. But of course if you always open 1nt with this hand type then the split range 2nt makes some sense.

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