[jareja]

Bridge regulations and procedures seek to eliminate any advantage from incomplete disclosure of agreements. Automatic disclosure of carding methods via convention cards is clumsy at best and seriously insufficient against partnerships with complex agreements. Useful improvements are straightforwardly possible. For example, as soon as an opening lead is made, let a pop-up alert declarer if opponents are using non-standard carding (including opening lead) agreements. The carding information for the pop-up must be filled out fully by non-SAYC partnerships. Details in the carding pop-up would be contextual to the particular type of contract being played (i.e., suit v no-trump, further distinguished if appropriate by partial v game v slam). This carding pop-up would ease declarer's burden, especially in pairs events or casual play when there is inadequate time to study carding methods of opponents. Over time, online bridge should provide contextual alerts to declarer for particular cards played (similar to existing contextual alerts for bids). BBO can blaze substantial advances for fairer and thereby more-fun bridge compared to traditional at-real-table settings