====Development after 1Club - 1Spade====

^Opener's Rebid^Description and Development^
|1N| 17 + HCP |
| |  Responder rebids: |
| | |2\C 7 - 9 HCP |
| | | |Opener bids a major if he is interested in a major suit fit; 2Heart with both majors. The auction is not game forcing|
| | | |Opener bids 2N without a major and a minimum or 3N with a maximum| 
| | |2\D 10 - 12 HCP | The auction is forced to game. The approach is to use natural bidding with the understanding that neither partner has a 5+ card suit.| 
| | |2\H 15 HCP|The auction is forcing to 4N|
| | |2\s+|The auction is forcing to the 6 level| Responder's first rebid is his cheapest 4 card suit unless his pattern is 4333. With 4333, responder's first rebid is 2N.| 
|2N |21 - 22 HCP| with no interest in a 4 card major Responder rebids: |
| | | |3\C Slam interest with 4\Cs and probably not 4\c333 |
| | | |3\D Slam interest with 4\Ds and probably not 4\D333 |
|2\c,2\d,2\h,2\s|Alpha support asking bid with the proviso that responder bids the 6<sup>th</sup> or 7<sup>th</sup> with 15+ HCP.  The 6<sup>th</sup> step denies a fit. |
|3\c,3\d,3\h,3\s|Sets the trump suit, demands cue bidding|