ACOLdutch

1§(3+cd)-#Handle

1¨(3+cd)-#Handle

1©(3+cd)-#Handle

1ª(3+cd)-#Handle

1§/2§(strong)

DBL=Red or black

1¨=MAJORs or minors

1©=5+©

1ª=5+ª

1NT=ª+¨ or ©+§

2§=5+§

2¨=5+¨

1NT(Weak)-#Handle

1NT(Strong)-#Handle

Preempt-#Handle