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Bocchi-Duboin Club

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Norberto Bocchi

Norberto Bocchi

Giorgio Duboin

Giorgio Duboin

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Bocchi-Duboin  Club  -  system summary

Bocchi-Duboin club 2001

  • Variable balanced

  • Preemptive balanced

  • Inverted doubles

  • Canape' overcalls

  • Multi's strong/weak

Bocchi-Duboin club 2003

  • Variable balanced

  • Inverted doubles

  • Canape' overcalls

 Bocchi-Duboin club 2006

  • Variable balanced

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2001

1=

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

1=

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

1=11-23HcP, 5+

1=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 

2=4-10HcP, 4+  +  4+, balanced or unbalanced

2=

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

2=5-10HcP, 5+  +  4+minor

2=5-10HcP, 5+  +  4+minor

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

3=6+, Good preempt

3=6+, Good preempt

3=7+, Preempt, undisciplined

3=7+, Preempt, undisciplined

3NT=7+card minor, good

4=7+, Preempt, undisciplined

4=7+, Preempt, undisciplined

4=7+, Preempt, undisciplined

4=7+, Preempt, undisciplined

 2003 / 2006

1=No 5M332

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

1=

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

1=11-23HcP, 5+

1=11-23HcP, 5+

1NT=Semi-balanced

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

2=18-19HcP, Semi-balanced  

2=

  • 23+HcP, balanced
  • Any game force

2=5-10HcP,(5)6+

2=5-10HcP,(5)6+

2NT=20-22HcP,Semi-balanced 

3=6+, Preempt, undisciplined

3=6+, Preempt, undisciplined

3=7+, Preempt, undisciplined

3=7+, Preempt, undisciplined

3NT=7+card minor, good

4=7+, Preempt, undisciplined

4=7+, Preempt, undisciplined

4=7+, Preempt, undisciplined

4=7+, Preempt, undisciplined

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Please note

Defensive
  • 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

Interference handle
  • 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

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Leads(suit):3/5,Low=Odd

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

 Partner lead:

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)

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2001

Bocchi-Duboin Club 2001

  • Reading interference handle: Disable 'Constructive' in 'Settings'

Convention card

Notes

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2003

Bocchi-Duboin Club 2003

  • Reading interference handle: Disable 'Constructive' in 'Settings'

Convention card + notes

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2006

Bocchi-Duboin Club 2006

  • Reading interference handle: Disable 'Constructive' in 'Settings'

Convention card + notes

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2001

2003

Canape' overcall over 1§

Canape' overcall over 1¨

  Inverted doubles after 1§¨

  Inverted doubles after 1İŞ/1NT 

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