Bocchi-Duboin 2006
2©=5-10HcP,(5)6+©
2©-DBL/Overc=#Handle
2©-2ª=ASK quality
2©-2ª-2NT=min,poor
2©-2ª-3§=min,good
2©-2ª-3¨=MAX,poor
2©-2ª-3©=MAX,good
2©-2NT=5+ª
2©-3§=Pass/correct
2©-3¨=6+¨,Invite
2©-3©=Preempt
2©-3NT/4©=Signoff
Bocchi-Duboin 2006
2©=5-10HcP,(5)6+©
2©-DBL/Overc=#Handle
2©-2ª=ASK quality
2©-2ª-2NT=min,poor
2©-2ª-3§=min,good
2©-2ª-3¨=MAX,poor
2©-2ª-3©=MAX,good
2©-2NT=5+ª
2©-3§=Pass/correct
2©-3¨=6+¨,Invite
2©-3©=Preempt
2©-3NT/4©=Signoff