SandyLie

Any idea to develop a client, which could be sold through the Apple app store?

Hi ! Can somebody, please, advise a system or convention for the following situation within 2/1. after 2/1 partner confirms openers major on 2 or 3 level example: 1♠ pass 2♣ pass 2♦ pass 2♠ o r 1♠pass 2♣ pass 2♥ pass 3♥ What strength should opener/partner have to show slam interest and how should he do it (cuebid, baby blackwood .....) and how he should deny slam interest and not jump to 4 immediatelly. Is there a system or convention that solves this? Thanks