convention card for Revision 5
Below are modifications necessary to convert Rev 4.0 to 5.0. 4.0 can be found at Systems with Dan. a formatted copy of modifications can be gotten by emailing me.
1♥-1♠-2♣ 4N: Kickback for ♠ (manuscript has as no meaning)
Majors - page 16
1♥-1♠ 2♥: 6+♥ could have 3♠ if ♥ strong enough to play opposite a singleton
1♥-1♠-2♥: 2N: INV; 3N:TP.
3♣/3♦: GF natural.
3♥: INV; 4♥: TP.
3♠: GF natural.
4♣/4♦: ST for ♥.
4N: Kickback 14/30 for ♥.
Majors - page 19
2♠: WJS 6+♠ 0-7 hcp. Book uses 0-9 hcp, really bad 8-9 hcp still possible.
Majors - page 47
1♠-1N-3♠ 4♠: TP
1♠-1N 3N: Artificial F1. 7=5=(1-0) with good values.
1♠-1N-3N 4♣: ST in ♥. 4♦=♦ void & 1A, 4♥=♣ void & 1A, 4♠=2A & ♦ void, 4N=2A & ♣ void
5♣: 7=6=0=0 (now 5♦ asks for Aces).
1♠-1N-3N 4♦: ST in ♠. 4♥=♦ void & 1A, 4♠=♣ void & 1A, 4N=2A & ♦ void, 5♣=2A & ♣ void,
5♦: 7=6=0=0 (now 5N asks for Aces)
1♠-1N-3N 4N: Shows 2 Aces in ♣ & ♦. Opener shows his Aces with normal Blackwood
1♠-1N-3N 4♥: TP
1 Major Page 82
4: ♥ void and max. Manuscript no meaning but was in FD
1 Major - page 91
2M: WJS 0-7 hcp 6+M. Book uses 0-9 hcp, really bad 8-9 hcp still possible.
1 Diamond - page 4
3♣: NF WJS 6+♣ 0-7 hcp (not mandatory bid can pass with ♦ tolerance). Book uses 0-9 hcp, really bad 8-9 hcp still possible.
1 Diamond - page 55
1♦-(X) 2N: artificial F1, 5+5+ minors 0-7 hcp, UPH maybe GF in which case they bid game or short major as ST.
1 Diamond - page 57
3♣: has short in ♥ or short in ♣ with 2-3♥ also may have xx in ♣ with 3♥.
puppet to 3♦ unless 5♥ then breaks and bid 3♥
1N-2♣-2♥-3♣-3♦ 3♥: short ♥. 3♠: short ♣ and tend to 3♥ looks for ♣ stopped. 3N: 2♣3♥ NF.
4♣: short ♣ and tend to 3♥. 4♦: short ♣ 2♥. 4♥: To play 0-2♣.
1N-2♣-2♥-3♣-3♥ 3♠: short ♣ 3♥. 3N: short ♥. 4♣: short ♣ 3♥ ST. 4♦: short ♣ 2♥. 4♥: To ply.
1N-2♣-2♥ 3♦: short in ♦ 2-3♥ or xx in ♦ 3♥, if 2♥ 4=2=1=6.
Resp: 3♥: 5♥. 3♠: 4♥ not good ♦ stop. 3N: To play ♦ stoppers.
1N - page 15
3♠: xx in ♠ and 3♥ or short in ♠ 2-4♥, if rare 2♥ 1=2=(4-6)
Opener: 3N with ♠ stop may have 4♥
4m: poor ♠ stop natural suit, not wanting to play in 4-3
if responder shows 4♥ then is ST
IN - page 16
3♣: puppet to 3♦, hands with black suit shortness, xx in ♣ 3♠ or GF 5♥ possibly including 5-card minor
1N-2♣-2♠-3♣-3♦ 3♥: 5♥, 3♠: short ♠. 3N: possible to play 2♣3♠ or short ♣. 4♣: short ♣ tend to 3♥ ST. 4♦: short ♣ tend to 2♥, 4♥: to play 0-1♣.
1N-2♣-2♠-3♣-3♦-3♥ 5♥ may be 5=2=3-3 or a 5-card minor
3♠: 5=2=3=3. 3N: 2♦4♠. 4♣/4♦: 3♥ good minor. 4♥: 3♥ to play.
1N-2♣-2♠-3♣-3♥ Breaks relay with 5♠
3♠: 5♥ may be 5=2=3-3 or a 5-card minor. 3N: short ♠. 4♣: short ♣ with 3♠ ST. 4♦: short ♣ with 2♠. 4♠: To play 3♠.
1N-2♣-2♠ 3♦: short in ♦ 2-3♠ or xx in ♦ 3♠, Roth Stone shortness bid, if 2♠ 2=4=1=6
1N-2♣-2♠ 3♥: short in ♥ 2-3♠ or xx in ♥ 3♠. Roth Stone shortness bid, if 2♠ 2=1=(4-6)
1N - Page 17
INV with 5-5 in the minors
Opener: pass TP in 3♣ with a minimum
3♦: TP with a minimum
3♥/3♠: major suit stopper
3N: maximum with majors well stopped
4♥/4♠ Kickback for ♣/♦, this would be rare
4N: Asks for better minor; 5m: TP with maximum
GF or ST with 5-5 in the minors or better
3♥/3♠: Artificial good fit for ♣/♦; 3N with majors well stopped
4♣/4♦: fit but not good for slam; 4/4:
4N: asks for better minor.
1N-3♥: INV artificial F1, 5-5 in majors or better
1N-3♥ Pass: minimum values, either 3♥2♠ or 2♥2♠
1N-3♥ 3♠: 3♠ and minimum values. Responder places final contract.
1N-3♥ 3N: 2-2 in the majors and maximum values
1N-3♥-3N 4♣: Show better major. 4♦/4♥: Transfer, may be 6-5. 4♠: TP. May be 6-5
1N-3♥ 4♣: South African transfer to ♥ with a maximum, control heavy, possibly with double fit
Responder: 4♦ retransfer (possibly followed by Kickback), 4♥ TP
1N-3♥ 4♦: South African transfer to ♠ with a maximum, control heavy, possibly with double fit
Responder: 4♥ retransfer (possibly followed by Kickback), 4♠ TP
1N-3♥ 4♥: TP
1N-3♥ 4♠: TP
1NT - page 28
1N-4♠: ST Quantitative raise where responder needs opener to have 18 hcp as is 15 hcp with 4333.
1NT - page 29
Opponents bid 2♦/2♥/2♠ naturally
Double: negative, usually with at least 2-cards in opponents’ suit, as this can be converted to penalty by opener.
2 level bids: TP
Transfer to a Cuebid: shortness in opponents suit and for takeout, akin to the Roth-Stone shortness bids. Also, 1N-(2♥)-3♠ is shortness but 3♥ and 1N-(2♠)-3♥ is shortness with 3♥ and 3♠ is shortness with 4♥.
2N/3♣/3♦/3♥: unless a transfer cuebid is a transfer with INV+ strength. You can do on less than INV with extra length so if partner pushes you will still be safe.
Minor suit Stayman is done by a transfer to ♣ with 2N then 3♦ (over further interference may be bidding 4♦)
3N: TP suggests but doesn’t guarantee a stopper, could be doing on pure power
4♣/4♦: 2 suiter bid minor and unbid major except over 2♦ when Gerber and Texas transfers apply
Dble 2♥ 2♠ 2N 3♣ 3♦ 3♥ 3♠ 4♣ 4♦
1N-(2♦) Neg. ♥ NF ♠ NF trf to ♣ INV+ shortness 0-1♦ trf to ♥ INV+ trf to ♠ INV+ undefined Gerber Texas ♥
1N-(2♥) Neg. - ♠ NF trf to ♣ INV+ trf to ♦ INV+ shortness
0-1♥, 4♠ trf to ♠ INV+ shortness
0-1♥, 3♠ ♣ & ♠ ♦ & ♠
1N-(2♠) Neg. - - trf to ♣ INV+ trf to ♦ INV+ trf to ♥ INV+ shortness
0-1♠, 3♥ shortness
0-1♠, 4♥ ♣ & ♥ ♣ & ♠
Opponents bid 2♦/2♥/2♠ artificially
If opponents bid showing that suit and an unknown suit, treat overcall as a 1-suiter and bid normally with double as negative.
If opponents bid showing 2 known suits where one suit is the bid suit then double is negative for the other 2 unbid suits. At the 2-level a cue-bid shows shortness in the opponent’s suit (Kantar cuebid). Any suit bid at the 2-level which wasn’t shown by overcall is TP. There will be 2 transfer bids available, including 2N, transferring to a suit with INV+ strength. The 2 3-level transfer cuebids show a stopper in bid suit and ask for a stopper in other suit for 3N. 3N is to play with stoppers. The remaining available 3-bid shows 5-5 in the unbid suits, with less make a negatives double. However, when one of the suits could be a 4-card suit, you can make a transfer into that suit naturally with INV+ strength. If both can be 4-card suits, treat them both as 5-card suits.
If opponents bid is a transfer, then double is negative for the suit actually shown. A cuebid is Roth-Stone shortness bid but not GF if at 2-level. Use a transfer cuebid at 3-level if you want to set up a GF auction. Transfers 2N and above work the same as a natural 1-suiter.
1NT - page 32
Opponents overcall at 3-level
3 of suit: GF natural 5+card suit
4♣ (if not a cuebid): GF natural 5+card suit
4♦ (over 3♥/3♠): GF natural 5+card suit
4♣/4♦ (if cuebid): Slam try 5-5 or better in majors
4♦/4♥ (over 3♣): Texas transfers to ♥/♠
4♥/4♠ (if cuebid): Slam try Michaels
4♥ (over 3♦/3♠): natural 5+card suit
4♠: natural if not a cuebid
4N (over 3♣/3♦): Quantitative
4N (over 3♥/3♠): for the minors
1N - page 34
Transfer to ♣ or Both minors
2N-3 Transfer to ♣ or 5-5, 6-4 or better in minors
2N-3 3N: NF poor support for ♣.
2N-3-3N 4♣: 6+♣. Now respond as to Kickback 3014 skipping 4N which is negative.
2N-3-3N 4♦: 5+♦ minor 2-suiter with a singleton.
Now 4♥ ask for short: 4♠=1♠, 4N: 1♥ F1, 5♣: 1=1(6-5)
4N: Major suits well stopped suggested spot to play.
2N-3-3N 4M: void in bid major 5-5 in minors or better
2N-3-3N 4N: INV to 6♣/6N.
2N-3 4: good hand for slam in . bid 4N: INV, 4M as cuebid or 5♣ TP.
2N-3♣ 4♦: 3014 Kickback.
2N-3♣ 4M: short in major, 5-5 in minors or better.
2N-3♣ 4N: INV to 6♣/6N.
2N-3♣ 5♣: TP.
2N-3 4M: NF strong 5-card major 2=5=3=3/5=2=3=3
2N-4: Quantitative where opener needs dead max to bid 6N. So over 2N opening likely 13 hcp 4333.
2N - Page 11
4N GF. 6-6 or 7-6 in minors with 2 losers in the minor suits. Responder picks a minor, bidding 6/7 with minor suit winner(s)
5♣ NF. Strong hand with 2 losers in ♣ suit. Responder raises only with A/K/Q♣
5♦ NF. Strong hand with 2 losers in ♦ suit. Responder raises only with A/K/Q♦
5♥ NF. Strong hand with 2 losers in ♥ suit. Responder raises only with A/K/Q♥
5♠ NF. Strong hand with 2 losers in ♠ suit. Responder raises only with A/K/Q♠
5N F1. ST. 6-6 or 7-6 in minors with 1 loser in a minor suit. Responder picks a minor, bidding 7 with minor suit winner
6N F1. ST 6-6 or 7-6 in minors with 0 losers. Responder picks a minor
Preempts - page 14
1♣ 2N: GF. Any solid 6-card suit (AKQJ, J a must) with no side A/K. This 3N in manuscript. PG 23
1♣-2N 3♣: (must know suit) Artificial relay for side shortness. Responder: shows shortness in ascending pattern, bidding own suit with no shortness (3N if ♣). examples
solid ♣; 3♦: 0-1♠, 3♥: 0-1♥, 3♠:0-1♦, 3N: no shortness with ♣.
solid ♦; 3♦: no shortness with ♦, 3♥: 0-1♠, 3♠:0-1♥, 3N: 0-1♣.
solid ♥; 3♦: 0-1♠, 3♥: no shortness with ♥, 3♠:0-1♦, 3N: 0-1♣.
solid ♠; 3♦: 0-1♥, 3♥: 0-1♦, 3♠: no shortness with ♠, 3N: 0-1♣.
If opener does not sign-off in game bids next suit (not 3N) asking if responder is void?
With singleton bids suit at cheapest level (usually 4-level) and jumps in own suit with a void (5X)
1♣-2N 3♦: An artificial bid asks for solid suit and is willing to play from responder’s suit. Opener may bid on now that they know the solid suit.
1♣-2N 3N: TP. opener knows responder’s solid suit and that slam unlikely and 3N best contract.
1♣-2N 4♥/4♠/5♣/5♦: TP. Opener knows suit, that slam unlikely and to play from opener’s side.
1♣-2N Slam: TP. Note it is possible to not play in responder’s long suit, though rare.
1 Club - page 22
1♣ 3N: NF. A solid 7-card minor suit (AKQ) with no side A/K. Added to system. similar to PAGE 23
1♣-3N Pass: TP. opener knows responder’s solid suit and that slam unlikely and 3N best contract.
1♣-3N 4♣: (must know suit) Artificial relay for side shortness. Responder: shows shortness in ascending pattern, bidding own suit with no shortness (4N if ♣). examples
solid ♣; 4♦: 0-1♠, 4♥: 0-1♥, 4♠:0-1♦, 4N: no shortness with ♣.
solid ♦; 4♦: no shortness with ♦, 4♥: 0-1♠, 4♠:0-1♥, 4N: 0-1♣.
If opener does not sign-off in game bids next suit (skipping trump) asking if responder is void?
With singleton bids suit at cheapest level (usually 5-level) and jumps in own suit with a void (6X)
1♣-3N 4♦: An artificial bid asks for solid suit. Will always be played by opener, so might was well use this if any doubt. Responder now bids 4♥: solid ♣ and 0-1♦ (4♠: asks if ♦ void). 4♠: solid ♦ with 1♣, 4N: solid ♦ with 0♣, 5♣: solid ♣ no ♦ shortness, 5♦: solid ♦ no ♣ shortness.
1♣-3N 4♥/4♠/5♣/5♦: TP. Opener knows suit, that slam unlikely and to play from opener’s side.
1♣-3N Slam: TP. Note it is possible to not play in responder’s long suit, though rare.
1 Cub - page23
1♣-(X) Pass: 0-4 hcp. Denies some hands with 4-4 in majors/6+♦/5+♥/5+♠/6+♣.
1♣-(X)-P-(P) Redouble: 5+♣, primary suit ♣. NF. May instead choose to pass and play in 1♣X
1♣-(X)-P-(P) 1♦: 5+♦ and 4M, 16-18 hcp
1♣-(X)-P-(P) 1N: 21-23 hcp with 1N systems on, 2N: 24-26 hcp, Kokish 2♥ followed by 2N: 27-28 hcp
1♣-(X)-P-(P) 2♣ and above: Same as over 1♣-1♦
1♣-(X) 1♦: NFB. 5-7(8) hcp. Denies ability to make other bids.
1♣-(X) 1M and above: same as over 1♣.
1 Club - page 88
3♣-3♦ 3OM: with a 3-card major bid other major
3N: no 3-card major
4♣: 3-3-1-6 this was 4♥ which would wrong-side a 4♥ contract
Preempts - page 9
While basically the same methods as Revision Precision has used, it is easier to summarize the methods here in one spot. The biggest difference is that transfer advances are basically used only for 1-level of bidding and only after a 2nd seat overcall.
Normal overcall range is 7-18 hcp. However, systemically may bid with 5-6 hcp to suggest a good lead or a preemptive hand where vul or would have to bid at 3-level but don’t have enough. Advancer can overcall at 1-level with 4-card major suit suitable for playing in a 4-3 fit, if you have strength in opponent’s suit and no other good bid, usually 12-15 hcp.
When an overcall is made in 2nd position it is the only case where both partners are unpassed hands so bidding is more constructive and transfer advances are used.
For simple overcalls of 1-level openings and responder passes or makes a bid lower than 2 of opener’s suit; cue-bidding or making a non-jump suit bid above a cue-bid of opener’s suit and below a raise of partner’s suit are transfers. This is called transfer advances and is only used for non-jump responses, higher bids are natural. eg. (1♣)-1♠-P then 2♣=♦, 2♦=♥, 2♥=INV ♠, 2♠=simple ♠ raise
Transferring to an unbid suit is shows 5+card in that suit and is unlimited but could be rather weak.
Transferring to our suit is a 3+ card limit raise.
Raising our suit is not a transfer but a simple raise.
A jump raise of overcaller’s suit is a good mixed raise and has at least 4-card support.
A jump cue-bid is a splinter 4+card INV raise. If the jump cuebid is above 3 of overcaller’s suit and below 3N then is asking for a stopper for 3N; this can even occur after a 2♥ overcall.
If opener’s partner makes a negative double, Redouble shows a doubleton honor support and decent hand 9+ hcp, transfer advances still apply and a simple raise is 3+ card support.
If opener’s partner makes a negative double, Redouble shows a doubleton honor support and decent hand 9+ hcp, transfer advances still apply for an unpassed hand.
A 1♠ response to a 2nd seat 1♥ opening is F1 and is at least a 4-card suit.
Other simple bids of new suits below a cue-bid are natural with 5+cards and forcing by an unpassed hand.
A jump in a new suit by advancer below game is preemptive but not garbage by an unpassed hand.
A response of 1N is 9-12 hcp with a stopper in opponent’s suit(s). 2N is 13-15 hcp with a stopper in opponent’s suit(s), shows a trap by a passed hand.
If advancer is passed hand bidding is not as constructive. Transfer advances are not used; all new suit bids are natural and non-forcing. 1♥ and 1♠ bids may promise 4-cards after 1♦ or 1♥ overcall and other new suit bids promise 5-cards.
A cue-bid by a passed hand or after competition by opener’s partner is a balanced limit raise or a distributional raise with only 3 trump, who’s playing strength is in hcp not distribution and thus will not play as well.
By a passed hand, a jump cue-bid is a good 4-card limit+ raise in overcalled suit.
By a passed hand, a jump raise is a mixed raise.
A jump in a new suit by advancer below game as a passed hand is a fit showing jump - a 5-card suit with 4-card support and 9-11 hcp. This bid shows a fit as advancer has no reason to jump unless their hand has been improved by partner’s overcall.
If opener’s partner intervenes taking away a level of bidding for a jump cue-bid then a cue-bid is a limit+ raise of unspecified length, while a jump raise is a 4-card mixed raise instead of being weak.
If opener’s partner intervenes:
a) Interference below 2 of opener’s suit
No changes necessary as still have a 2-level cuebid available for a limit+ raise.
Transfer advances still apply if advancer an unpassed hand.
There are two cuebids available for a limit+ raise, so make for cuebid in your shorter suit
Defensive Bidding - page 6
b) Opponent’s raise their suit
This is a special case; here there is no jump cuebid available normally so an adjustment is made.
Transfer advances are used in this situation even as an unpassed hand with double starting transfers.
A double transfers to the next suit up, is F1 and may contain 3-card support for overcaller.
Higher suits are also transfers just like transfer advances but bidding overcaller’s suit is a simple raise and stops the series of transfers.
Advancer’s transferring to overcaller’s suit is a 3+ card limit raise by an unpassed hand as normal
Advancer’s cuebid of opener’s suit is a splinter raise and INV+ with at least 4-card support.
Advancer’s jump raise of overcaller’s suit is a mixed raise and has at least 4-card support.
c) Interference above 2 of opener’s suit with 2 cuebids available
Lowest cuebid (3♦ in example) is a limit+ raise. with at least 3-card support
Highest cuebid (3♥ in example) is a mixed raise with at least 4-card support.
d) Interference above 2 of opener’s suit with 1 cuebid available
Advancer’s cuebid (3♦ in example) is a limit+ raise. with at least 3-card support
Advancer’s 3-level raise (even if non-jump) is a mixed raise with at least 4-card support but could be shaded as few options
Doubles are transfers when opponents have bid only 1 suit. Double when only 1 suit is unbid, shows a doubleton honor support and decent hand with good 5+cards in unbid suit and 9+ hcp.
Should opponents cue-bid overcaller’s suit, double shows a doubleton honor support and decent hand 9+ hcp.
Summary of Jump Overcalls and Cuebids
In Direct Seat
2♣ 2♦ 2♥ 2♠ 2N 3♣ 3♦ 3♥
1♣ 4♠5♦ 4♥5♦ 5♥5♠ preempt 5♦5♥ 5♥5♠ strong preempt preempt
1♦ 4♥(5)6♣ 5♥5♠ 4♠(5)6♣ 5♣5♥ Vul-Int, NV-Wk 5♥5♠ strong preempt
1♥ 4♠6min preempt 5♣5♦ 5♠5♣ 5♠5♣ strong preempt
1♠ 5♠5min 5♣5♦ 4♥(5)6♣ 4♥(5)6♦ Vul Int, NV-Wk
In Balance Seat
1N 2♣ 2♦ 2♥ 2♠ 2N 3♣ 3♦ 3♥
1♣ 12-15 4♠5♦ 4♥5♦ 5♥5♠ Int 19-20 running ♦ - -
1♦ 12-15 4♥(5)6♣ 5♥5♠ 4♠(5)6♣ 19-20 Vul Int, NV-Wk running ♣ -
1♥ 13-16 4♠6min preempt 20-21 5♥5♣NF 5♠5♣NF running minor
1♠ 13-16 5♠5min 20-21 4♥(5)6♣ 4♥(5)6♦ Vul Int, NV-Wk
1♠ 3♠= running minor
In Balance seat by a Passed Hand
1N 2♣ 2♦ 2♥ 2♠ 2N 3♣ 3♦ 3♥
1♣ 12 4♠5♦ 4♥5♦ 5♥5♠ preempt 65 ♥♦ - - -
1♦ 12 4♥(5)6♣ 5♥5♠ 4♠(5)6♣ 65 ♥♦ preempt - -
1♥ 4♠6m 5♠6min preempt 65 minors preempt preempt -
1♠ 5♠5minor 5♠5min 65 minors 4♥(5)6♣ 4♥(5)6♦ preempt
Defensive Bidding - page 6
Maximal Doubles 1-under Game Try
Kit Woolsey says maximal doubles bad idea. To make a game try bid game and try to make.
1♥-(2♦)-2♥-(3♦) Double: Penalty
1♥-(2♦)-2♥-(3♣) Double: Penalty, when opener has a bid that could be used as a game try.
3♦: Artificial game try in ♥.
(1♥)-1♠-(2♥)-2♠-(3♥) Double: Penalty. Applies to overcalls too.
Extras - page 12
In most cases Kickback is used as the ace-asking bid and uses 30/14.
4♣. Used over 1N openings, overcalls and natural 1N rebids but does not apply for some interference. Responses: 4♦: 0/4 Aces, 4♥: 1 Ace, 4♠: 2 Aces, 4N: 3 Aces. Follow-ups; 4N: to play, 5♣: asks for Kings using same methods as for Aces, other bids: to play.
5♣. Used over 2N openings and strong balanced 2N rebids after 1♣ opening. Responder will not have a ♣ 1-suiter, with that they would use 3♠ as a transfer when it is possible to ask for keycards. Responses: 5♦: 0/4 Aces, 5♥: 1 Ace, 5♠:2 Aces, 5N: 3 Aces. 6♣: asks for Kings using same methods as for Aces, other bids: to play including 5N.
Extras - page 24
Against a NT contract only, your first discards tends to deny the suit discarded and tends to be suit preference. Against suit contracts, if you discard a suit where your attitude is known then your first discard of that suit tends to be suit preference. Your attitude is know when declarer’s side is known to have cards that can beat all of your card or when our side’s cards are known to be better than opponent’s card or they are known to be void.