bridgeFILES

Bocchi-Duboin Club

Norberto Bocchi

Bocchi-Duboin  Club  –  system summary

• Variable balanced

• Preemptive balanced

• Inverted doubles

• Canape’ overcalls

• Multi’s strong/weak

• non-Vuln: 13-16HcP, balanced 
•        Vuln: 12-14HcP, balanced 
• 11+HcP, 4+, unbalanced
• 11+HcP, 4-4-1-4
• Any Game Force 

• 11-23HcP, (4)5+
• 11+HcP, 3-suiter w/
• 17-19HcP, balanced

=11-23HcP, 5+

=11-23HcP, 5+

1NT=Semi-balanced

• 1-2 seat, non-Vuln: 9-12HcP, balanced 
•                        Vuln: 15-17HcP, balanced
•    3 seat: 15-17HcP
•    4 seat: 12-14HcP 

=4-10HcP, 4+  +  4+, balanced or unbalanced

• 5-10HcP, 6+ or 6+
• 20-22HcP, balanced

=5-10HcP, 5+  +  4+minor

=5-10HcP, 5+  +  4+minor

2NT=Bad preempt in a minor. 6+/ 6+

=6+, Good preempt

=6+, Good preempt

=7+, Preempt, undisciplined

=7+, Preempt, undisciplined

3NT=7+card minor, good

=7+, Preempt, undisciplined

=7+, Preempt, undisciplined

=7+, Preempt, undisciplined

=7+, Preempt, undisciplined

=No 5M332

• 3. seat: 12-14HcP, balanced 
• 4. seat: 15-17HcP, balanced 
• 11+HcP, 4+, unbalanced 

• 10-22HcP, unbalanced
• 11+HcP, 3-suiter w/

=11-23HcP, 5+

=11-23HcP, 5+

1NT=Semi-balanced

• 3. seat: 15-17HcP, balanced 
• 4. seat: 12-14HcP, balanced 

=18-19HcP, Semi-balanced  

• 23+HcP, balanced
• Any game force

=5-10HcP,(5)6+

=5-10HcP,(5)6+

2NT=20-22HcP,Semi-balanced 

=6+, Preempt, undisciplined

=6+, Preempt, undisciplined

=7+, Preempt, undisciplined

=7+, Preempt, undisciplined

3NT=7+card minor, good

=7+, Preempt, undisciplined

=7+, Preempt, undisciplined

=7+, Preempt, undisciplined

=7+, Preempt, undisciplined

Please note

• Versus standard systems(SAYC,2o1,ACOL etc.) Bocchi-Duboin plays canape’ overcalls over 1§¨
• 2nd best suit is overcall suit. The overcall suit can be 2 cards only if balanced hand. Best suit will be 5+cards.

More info: Note 4

• As interference handle Bocchi-Duboin uses inverted doubles. This feature means that a pass by responder after a LHO is a strong call forcing opener to DBL.
• The standard is:
• • Pass= 4+cards in opps.’  overcall suit or MAXIMUM unbalanced hand
  • DBL=2-3 cards in opps.’ suit  or for penalty
  • New suit or raise are both weak

More info: Note 12

A(ask ATT)=AK,AKJT(+),AKx(+),Ax(+)

K(ask CTRL)=AKJT(+),AKx(+)

Q=KQ,KQ(J/T)x(+),KQx(+)

J=QJx(+)

T=T9,JTx(+)

9=T9x(+)9x,HT9x(+)

Hi-x:Sx,xSxx,HxSx,HxxxSx

Lo-x:xxS,xxxS,HxS,HxxxS

Leads(NT):Open:3/5,Attitude

Subsequent: 3/5,Low=Odd

A(ask ATT)=AK,AKx(+),Ax(+)

K(ask CTRL/UB)=AKJT(+),KQT9(+)

Q=AQJx(+),KQ(+)KQ(J/T)x(+),QJx(+)

J=(A/K)JTx(+)JTx(+)QJx(+)

T=T9,T9x(+),HT9x(+)

9=H98x(+)

Hi-x:Sx,HxS,xSx,xSxx,HxSx,HxSSx

Lo-x:HTxS,HHxS,HTxxS,HHxxS

1. Odd=Encourage

2. Hi/lo=Odd

3. S/P

Declarers lead:

1. Hi/lo=Odd

2. S/P

SUIT(Discards):

1. Odd=Encourage

2. S/P

NT(Discards):

1. S/P

Trumps:

1. Hi/Lo=Interest

Smith signal,Lavinthal

S/P=If cannot follow: LOW(lower suit)/ HIGH(higher suit)

Convention card

Notes

Convention card + notes

Convention card + notes

2001

2003

Canape’ overcall over§

Canape’ overcall over¨

 Inverted doubles after 1§¨

 Inverted doubles after 1©ª1NT