Bocchi-Duboin 2006
1§-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