Standard Lebensohl. Fast denies stopper

1N – (2C natural) – 2N – (P) –

3C – (P) – 3D = stayman with stopper

Polowan

Transfersohl

(2§) x = stayman system on

(2¨) 3§ = stayman and 3¨, 3© =transfers shows some values 3ª = clubs

(2M) 3§ = ¨ invitational 3¨ = xfer to other major 3M = stayman, 3 of M = both minors