Bocchi-Duboin

1§-1ª

Pass=Trans -> DBL

*3+ª

*MAX,unbal,0-1ª

DBL=4+©

1NT=Natural

2§=8+HcP,5+¨

2¨=5+©

2©=5+§

2ª=9+HcP,No MAJOR

2NT=7-10HcP,5¨ + 5©

3§=8-11HcP,4© + 5§

3¨=8-10HcP,6+¨,good

3©=8-10HcP,6+©,good