part 4After we open at level 1 (1
/1/1/1)
and opponent overcall with a preemptive bid, what are Responder's
bids meaning?RULE#1: After an open in a minor suit and any interference the 4
bid in jumping
is reserved for asking aces using the Gerber convention with the responses:
4
= zero or 4 aces, 4
= 1 ace, 4 = 2
aces and 4nt = 3 aces and after any bid by the Gerber bidder is
conclusive.RULE#2: After an open in a minor suit and any interference the response in jumping to 4
is a transfer to 4
showing 7/8 cards Hearts and up to 9 hcp without 2 aces and in similar
way the response bid in 4
is a transfer to 4,
just for the strong hand receive the lead, but if opponent overcall in
that major, of course, that transfer does not apply.=========== interference in level 2 ===============
Responder Opponent Opener Overcall
1
2?
pass <= nothing to bid or just waiting for reopen with double
double <= shows 7+ hcp and at least one major with also 4
+
cards support or a long major suit - not punitive
if Responder has a 5+ cards major and 10+ hcp he
bids his suit for one-round force
2
<= 5+ cards and
10+ hcp one-round force2
<= 5+ cards and
10+ hcp one-round force (deny 4)2nt <= invitation for 3nt with 10-11 hcp and 1,5 stopper in
opponent suit - deny majors - hand 4333 or 4432
3
<= 5+ and 6-10 hcp3
<= asking for stopper with support 4+ and 11-12 hcp
3
<= splinter 5+
cards and singleton
with 11-14 hcp3
<= splinter 5+
cards and singleton
with 11-14 hcp3nt <= to play 12-15 hcp and 1,5 stopper in opponent suit
4
<= Gerber asking for aces 4
<= transfer to 4
7/8 cards and 7-9 hcp4
<= transfer to 4
7/8 cards and 7-9 hcp4
<= Exclusion RKC1430 - void Spades and 5+
cards
4nt=1key-card, 5
=0/3, 5=2-Queen, 5=2+Queen
4nt <= RKCB (1430) for Clubs
5
<= to play - distributional hand with only one loser in
5
<= Exclusion RKC1430 - void Diamonds and 5+
cards
5
=1key-card, 5=0/3, 5nt=2-Queen,
6=2+Queen5
<= Exclusion RKC1430 - void Hearts and 5+
cards
5
=1key-card, 5nt=0/3,
6=2-Queen, 6=2+Queen Responder Opponent Opener Overcall
1
2?
pass <= nothing to bid or just waiting for reopen with double
double <= 4
+ cards
and 7+ hcp one-round force - not punitiveif Responder has a 4
and long Diamond suit he bidsDiamonds after Opener rebid his Clubs suit and this
is not more one-round force - need a cuebid to GF
2
<= 5+ cards and
10+ hcp one-round force 2nt <= invitation for 3nt with 10-11 hcp and 1,5 stopper in
opponent suit - deny 4
- hand 4333 or 44323
<= 5+ and 6-10 hcp3
<= 5+ and 11+ hcp
one-round force3
<= asking for stopper with 4+
cards and 12+ hcp3
<= splinter 5+
cards and singleton
with 11+ hcp3nt <= to play 12-15 hcp and 1,5 stopper in opponent suit
4
<= Gerber asking for aces 4
<= splinter 5+
cards and singleton
with 11-14 hcp4
<= Exclusion RKC1430 - void Spades and 5+
cards
4nt=1, 5
=0 or 3, 5=2
and no Queen, 5=2+Queen
4nt <= RKCB (1430) for Clubs
5
<= to play - distributional hand with only one loser in
5
<= Exclusion RKC1430 - void Diamonds and 5+
cards
5
=1, 5=0
or 3, 5nt=2 and no Queen, 6=2+Queen5
<= Exclusion RKC1430 - void Hearts and 5+
cards
5
=1, 5nt=0 or 3, 6=2
and no Queen, 6=2+QueenResponder Opponent Opener Overcall
1
2?
pass <= nothing to bid or just waiting for reopen with double
double <= 4
+ cards
and 9+ hcp one-round force - not punitiveif Responder has good 5
+ cards
and 11+ hcp he bidshis suit for one-round force only with support in
2nt <= invitation for 3nt with 10-11 hcp and 1,5 stopper in
opponent suit - deny 4
- hand 4333 or 44323
<= 5+ and 6-10 hcp3
<= 5+ and 11+ hcp
one-round force3
<= 5+ and 11+ hcp
one-round force3
<= asking for stopper with 4+
cards and 12+ hcp 3nt <= to play 12-15 hcp and 1,5 stopper in opponent suit
4
<= Gerber asking for aces4
<= transfer to 4
7/8 cards and
7-10 hcp4
<= splinter - singleton
and 5+ cards with
11-14 hcp4
<= splinter - singleton
and 5+
cards with 11-14 hcp4nt <= RKCB (1430) for Clubs
5
<= to play - distributional hand with only one loser in
5
<= Exclusion RKC1430 - void Diamonds and 5+
cards
5
=1key-card, 5=0/3, 5nt=2-Queen,
6=2+Queen5
<= Exclusion RKC1430 - void Hearts and 5+
cards
5
=1key-card, 5nt=0/3,
6=2-Queen, 6=2+Queen5
<= Exclusion RKC1430 - void Spades and 5+
cards
5nt=1key-card, 6
=0/3, 5=2-Queen, 5=2+QueenResponder Opponent Opener Overcall
1
2?
pass <= nothing to bid or just waiting for reopen with double
double <= 4
+ cards
and 7+ hcp one-round force - not punitiveif Responder has a 5
+ cards and 10+ hcp he
bidshis suit for one-round force
2
<= 5+ cards and
10+ hcp one-round force 2nt <= invitation for 3nt with 10-11 hcp and 1,5 stopper in
opponent suit - deny 4
- hand 4333 or 44323
<= 5+ and 11+
hcp one-round force3
<= 5+ and 6-10
hcp3
<= asking for stopper with 4+
cards and 12+ hcp3
<= splinter 5+
cards and singleton
with 11+ hcp3nt <= to play 12-15 hcp and 1,5 stopper in opponent suit
4
<= Gerber asking for aces 4
<= careful here - this is a transfer no 4
with 7/8 cards4
<= splinter 5+
cards and singleton
with 11-14 hcp4
<= Exclusion RKC1430 - void Spades and 5+
cards
4nt=1key-card, 5
=0
/3, 5=2-Queen, 5=2+Queen
4nt <= RKCB (1430) for Clubs
5
<= Exclusion RKC1430 - void Clubs and 5+
cards
5
=1key-card, 5=0/3, 5=2-Queen,
5nt=2+Queen5
<= to play - distributional hand with only one loser in
5
<= Exclusion RKC1430 - void Hearts and 5+
cards5
=1key-card, 5nt=0/3, 6=2-Queen, 6=2+QueenResponder Opponent Opener Overcall
1
2?
pass <= nothing to bid or just waiting for reopen with double
double <= 4
+ cards
and 7+ hcp one-round force - not punitiveif Responder has a 5+ cards major and 10+ hcp he
bids his suit for one-round force
2nt <= invitation for 3nt with 10-11 hcp and 1,5 stopper in
opponent suit - deny 4
- hand 4333 or 44323
<= 5+ and 6-10 hcp3
<= 5+ and 11+ hcp
one-round force3
<= 5+ and 11+ hcp
one-round force3
<= asking for stopper with 4+
cards and 12+ hcp 3nt <= to play 12-15 hcp and 1,5 stopper in opponent suit
4
<= Gerber asking for aces4
<= transfer to 4
7/8 cards and
7-10 hcp4
<= splinter - singleton
and 5+ cards with
11-14 hcp4
<= splinter - singleton
and 5+
cards with 11-14 hcp4nt <= RKCB (1430) for Clubs
5
<= to play - distributional hand with only one loser in
5
<= Exclusion RKC1430 - void Diamonds and 5+
cards
5
=1key-card, 5=0/3, 5nt=2-Queen,
6=2+Queen5
<= Exclusion RKC1430 - void Hearts and 5+
cards
5
=1key-card, 5nt=0/3,
6=2-Queen, 6=2+Queen5
<= Exclusion RKC1430 - void Spades and 5+
cards
5nt=1key-card, 6
=0/3, 5=2-Queen, 5=2+QueenResponder Opponent Opener Overcall
1
2?
pass <= nothing to bid or just waiting for reopen with double
double <= shows both minors and 9+ hcp
2nt <= invitation for 3nt with 10-11 hcp and 1,5 stopper in
opponent suit - hand 4333 or 4432
3
<= 5+ and 11+
hcp one-round force3
<= 5+ and 11+ hcp
one-round force3
<= 3+ hcp
up to 10 hcp3
<= splinter with 4+
cards and 11-14 hcp 3nt <= to play 12-15 hcp and 1,5 stopper in opponent suit
4
<= Gerber asking for aces4
<= careful here - transfer to 4
7/8 cards and
7-0 hcp4
<= to play up to 14 hcp4
<= splinter - singleton
and 5+
cards with 11-14 hcp4nt <= RKCB (1430) for Clubs
5
<= to play - distributional hand with only one loser in
5
<= Exclusion RKC1430 - void Diamonds and 5+
cards
5
=1key-card, 5=0/3, 5nt=2-Queen,
6=2+Queen5
<= Josephine 5
<= Exclusion RKC1430 - void Spades and 5+
cards
5nt=1key-card, 6
=0/3, 5=2-Queen, 5=2+Queen================ level 3 interference ============
Responder Opponent Opener Overcall
1
3?
pass <= nothing to bid or just waiting for reopen with double
double <= shows 9+ hcp and both majors or one major and 4
+cards support in partner suit - not punitive
if Responder has a 5+ cards major and 10+ hcp he
bids his suit for one-round force
3
<= 5+ cards and
10+ hcp one-round force3
<= 5+ cards and
10+ hcp one-round force (deny 4)3nt <= to play 12-15 hcp and 1,5 stopper in opponent suit
4
<= not jump, so not Gerber - 5+
cards 9-11 hcp 4
<= transfer to 4
7/8 cards and 7-9 hcp4
<= transfer to 4
7/8 cards and 7-9 hcp4
<= Exclusion RKC1430 - void Spades and 5+
cards
4nt=1key-card, 5
=0/3, 5=2-Queen, 5=2+Queen
4nt <= RKCB (1430) for Clubs - very strong hand
5
<= to play - distributional hand with only one loser in
5
<= Exclusion RKC1430 - void Diamonds and 5+
cards
5
=1key-card, 5=0/3, 5nt=2-Queen,
6=2+Queen5
<= Exclusion RKC1430 - void Hearts and 5+
cards
5
=1key-card, 5nt=0/3,
6=2-Queen, 6=2+Queen Responder Opponent Opener Overcall
1
3?
pass <= nothing to bid or just waiting for reopen with double
double <= 4
+ cards
and 9+ hcp or support in partner suitone-round force - not punitive
if Responder has a 5
+ cards and 10+ hcp he
bidshis suit for one-round force
3
<= 5+ cards and
10+ hcp one-round force 3nt <= to play 12-15 hcp and 1,5 stopper in opponent suit
4
<= Gerber asking for aces 4
<= splinter 5+
cards and singleton
with 11-14 hcp4
<= Exclusion RKC1430 - void Spades and 5+
cards
4nt=1, 5
=0 or 3, 5=2
and no Queen, 5=2+Queen
4nt <= RKCB (1430) for Clubs
5
<= to play - distributional hand with only one loser in
5
<= Exclusion RKC1430 - void Diamonds and 5+
cards
5
=1, 5=0
or 3, 5nt=2 and no Queen, 6=2+Queen5
<= Exclusion RKC1430 - void Hearts and 5+
cards
5
=1, 5nt=0 or 3, 6=2
and no Queen, 6=2+QueenResponder Opponent Opener Overcall
1
3?
pass <= nothing to bid or just waiting for reopen with double
double <= 4
+ cards
and 12+ hcp one-round force - not punitiveif Responder has a solid 5
+ cards and 12+ hcp hebids his suit for one-round force
3nt <= to play 12-15 hcp and 1,5 stopper in opponent suit
4
<= not jump so not Gerber - support 5+
and 9-11 hcp4
<= transfer to 4
7/8 cards and
7-10 hcp4
<= splinter - singleton
and 5+
cards with 11-14 hcp4
<= splinter - singleton
and 5+
cards with 11-14 hcp4nt <= RKCB (1430) for Clubs
5
<= to play - distributional hand with only one loser in
5
<= Exclusion RKC1430 - void Diamonds and 5+
cards
5
=1key-card, 5=0/3, 5nt=2-Queen,
6=2+Queen5
<= Exclusion RKC1430 - void Hearts and 5+
cards
5
=1key-card, 5nt=0/3,
6=2-Queen, 6=2+Queen5
<= Exclusion RKC1430 - void Spades and 5+
cards
5nt=1key-card, 6
=0/3, 5=2-Queen, 5=2+Queen