MTSummit Posted December 5, 2009 Report Share Posted December 5, 2009 hello, i found it in conventional card but don't know what it really means.could anyone help me? thanks! Quote Link to comment Share on other sites More sharing options...
dicklont Posted December 5, 2009 Report Share Posted December 5, 2009 1. When you open 1NT and left hand opponent doubles, responders call mean the same as without the double.1NT - (Dbl) - 2♣ = stayman, 2♦ transfers for ♥ etc. 2. When you overcall 1NT and left hand passes, responders call mean the same as after opening 1NT (1♦) - 1NT - (pass) - 2 = stayman, 2♦ transfers for ♥ etc. Quote Link to comment Share on other sites More sharing options...
helene_t Posted December 5, 2009 Report Share Posted December 5, 2009 it usually refers to the situations 1NT-(dbl)-?where it means that we bid as if the opponent has passes instead of doubled, i.e. transfers and stayman etc apply. and/or (1♦)-1NT-(pass)-?where it means that we bid as if partner had opened 1NT rather than overcalled, ie. stayman, transfers etc apply. (the opening bid could also be some other suit, ♦ is just an example). Wellcome to the forum btw ! Quote Link to comment Share on other sites More sharing options...
gwnn Posted December 5, 2009 Report Share Posted December 5, 2009 Many people play system on over 1NT-(2♣), as long as 2♣ didn't promise both majors. i.e. double=stayman, 2♦=hearts, etc Quote Link to comment Share on other sites More sharing options...
MTSummit Posted December 5, 2009 Author Report Share Posted December 5, 2009 thanks dicklont & helene_t, the next question is, if i agree system on for both situations, should i write on cc "system on over double and overcall" or something similar? Quote Link to comment Share on other sites More sharing options...
helene_t Posted December 5, 2009 Report Share Posted December 5, 2009 thanks dicklont & helene_t, the next question is, if i agree system on for both situations, should i write on cc "system on over double and overcall" or something similar? System on over overcall sounds as if it applies when p opens 1nt and they overcall. Better put it in the relevant secotions. Under defensive bidding, put 1NT=15-18 (system on) Quote Link to comment Share on other sites More sharing options...
MTSummit Posted December 5, 2009 Author Report Share Posted December 5, 2009 thanks dicklont & helene_t, the next question is, if i agree system on for both situations, should i write on cc "system on over double and overcall" or something similar? System on over overcall sounds as if it applies when p opens 1nt and they overcall. Better put it in the relevant secotions. Under defensive bidding, put 1NT=15-18 (system on) thx for advice! :rolleyes: Quote Link to comment Share on other sites More sharing options...
MTSummit Posted December 5, 2009 Author Report Share Posted December 5, 2009 Many people play system on over 1NT-(2♣), as long as 2♣ didn't promise both majors. i.e. double=stayman, 2♦=hearts, etcy, i'm also customed with this Quote Link to comment Share on other sites More sharing options...
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