HAMWAY
Preempt-2©
DBL=#Lebensohl
2NT=16-19HcP
2NT-3§=Trans -> ¨
2NT-3¨=Trans -> ª
2NT-3©=Stayman
2NT-3ª=Trans -> §
3©=ASK Stop
3©-3NT=Stop OK
4§=5§+5ª,GF
4¨=5¨+5ª,GF
4©=Suit try §+¨,NF
4NT=§+¨,GF