System Summary Form, 2019 USBC


Team: Dinkin Last Updated Apr 10, 2019 at 08:30
Players: Sam Dinkin - Michael Shuster

Click here to see their ACBL convention card in a new window

Bids that Require Advance Preparation

ACBL Pre-alerts:
1M could be canapé any seat
We play 1M openings as light as 8 HCP or near Average (Av) in 1st and 2nd seats and very light 2M (0+) preempts 3rd seat. We also play very light (0+) responses to 1C.
1NT can be either natural or (5431), (4441) or (6331) with a small singleton.
3-level opening preempts may be as undisciplined as all spot cards.
Jump overcalls after (P)-P-(1 of a suit) or P-(1 of a suit) can be as short as 5.
Other opening bids, responses and competitive calls that may require advance preparation, but are not ACBL pre-alerts are listed below the general bidding style. In general, people like to make defenses against 1D strong, 2C MM 10 to 14, 2D strong with 5H4m(31) or 6+H0-3S, 2NT strong and limited with 6+S and rarely against 1NT for t/o and 1C-1R transfers.

General Bidding Style

Strong D, Weak 1M
[For points listed here, we routinely upgrade HCP ranges according to ACBL's Rule of 19 (e.g., 5-5 is a 1 point upgrade). This is on top of any other permissible controls, quality or concentration related upgrades which are usually 1 point and rarely 2+.]

List of Openings:
1C = 0+C;
-1st/2nd 10 to 14 nf;
-3rd/4th 15 to 17- unbal forcing (5- losers)
1D = str 0+D forcing; we will open this instead of 2m if we want to ask/bal/bad suit.
-1st/2nd 15 to 37
-3rd/4th 17+ to 37
1H = 4+H could have longer side suit, we open every hand qualifying for 1M this or something else;
-1st/2nd 8 to 11
-3rd/4th 15 to 17 4+H, typically balanced
1S = 4+S, 0-3H could have longer m;
-1st/2nd 8 to 11
-3rd/4th 15 to 17 4+S, 1-3H, typically balanced
1NT = Either natural or could have one small singleton, no void and 9 or fewer cards in two longest suits
-1st/2nd NV 10 to 12-, V 12+ to 14
-3rd/4th 15 to 17, no 4+Major
2C = MM NV: 4+4+, V: (5+4+) with rare exception (e.g. 4=4(50) )
-1st/2nd/3rd 10 to 14
-4th 13 to 14
2D = str, forcing, 5H4m(31) or 6+H, 0-3S;
-1st/2nd: 15 to 33
-3rd/4th: 17+ to 33
2H = 5+H;
-1st/2nd: 10 to 14, 5H4m(31) or 6+H, 0-3S;
-3rd: 0 to 14
-4th: 13 to 14 and expectation of going plus
2S = 5+S
-1st/2nd: 10 to 14, 5S4m(31) or 6+S0-3H;
-3rd: 0 to 14;
-4th: 13 to 14
2NT = 6-7S0-3H
-1st/2nd: 15 to 17
-3rd/4th: 18 to 19
3NT = solid minor
-1st/2nd: no side A or K

Psychics/awkward situations where we violate system: We tend not to be crazy third seat because we are systemically crazy first and second. Have rarely opted to show Kx when holding stiff K in relay or add a card to AQ and subtract a card from xxxx; rare because it will be two cards off actual pattern. We cannot show 8+suits or 12+ cards in two suits in relay so have to represent another pattern if responding to relay.
Forcing pass: We play pass double inversion when one of us has made a game forcing bid. This does not apply to a game raise. In some invitational sequences (e.g., 1D-1H and 1C-2C) our direct passes of bids are forcing below 2NT.

Relay notes: For all openings 1st/2nd and through 2NT and 1m/2m 3rd/4th there's a response that forces game and initiates a subsequent relay. To prevent relay:
1C-(1S) is high enough
(1X)-X-(1NT) is high enough 2nd, we do not play relay after 3rd and 4th seat power doubles
1D-(1NT) is high enough
1M-(1NT) is high enough 1st/2nd if it is natural or shows 2 known suits otherwise 2C, no relay 3rd/4th
1N-(2C) is high enough 1st/2nd if it shows two known suits, otherwise 2D, system off 3rd/4th
2C-(2D) is high enough 1st/2nd, no relay after initial response 3rd/4th
2D-(2S) is high enough
2H-(2S) is high enough 1st/2nd, no relay 3rd/4th
2S-(2NT) is high enough

To interrupt relay once started,
Typically 3 steps; this may increase by two steps if opponents double after pattern has been shown
If there's one-step interference (e.g., 1D-1N; (2C), opener has a penalty double available. After a double, opener and responder have a penalty redouble available before pattern has been shown, afterwards only opener has a penalty redouble.
General style: We play a strong diamond system with many weird openings, competing calls and follow ups.
In the 15 to 37 range in 1st and 2nd seats we have 3 calls:

2D = 5H4m(31) or 6H0-3S, 15 to 33;

2NT = artificial, 6+S0-3H, usually one suited, 15 to 17

1D = artificial, 15 to 37

In 1st and 2nd seats in the 10 to 14 range we have seven calls available:

2 of a Major = natural;
-5M4m(31) or a 6M0-3oM;
-10 to 14

1NT = natural,
-NV 10 to 12- HCP,
-V 12+ to 14 HCP
1M = 8 to 11 4+M could have a longer side suit, 1S also shows 0-3H
2C = 10 to 14 MM 4+4+
1C = 10 to 14
-We prefer to open 2M or 1NT to 1C or 1M (but may open 1C with a 2M shape if we do not know whether to accept an invitation or not).
In the 8 to 9 range we can either open at the 3-level or above or, if we have a 4+card major, we open 1 of a major.
NV we will prefer 1NT to 1M, unless we have a singleton, a five card suit, 0-1 control or want to direct a lead such that less than half of the 10-11 4+M hands will open 1M.
Both V&NV, 10 to 11 hands with 4+M we tend to avoid 1M and instead bid 2M, 2C or 1C if they are 5431 (4M5m most often), 544, 5M(431) high control or 10+ cards in two suits unless they have 0-1 control.
Our style is to open all average strength hands even 4333 and all near average strength hands with a 4+M. We can upgrade or downgrade (with some exceptions imposed by the Open+ chart like not being able to upgrade from less than near average to near average to open 1M or from near average to average to open 1NT). Our preempting style is disciplined on tricks and length, but not suit quality. Length is 6+ 3-level, 7+ 4-level and higher, except that P-P-(1 of a suit)-Jump Overcall or P-(1 of a suit)-Jump overcall can be made on 5+cards.
In 3rd and 4th seats, since we already opened all 10+ and most 8+ hands, we increase the strength requirements for our strong bids to Av 17+ or 18+. We add another forcing opening: 1C with 15 to 17- and a 5-card suit unbalanced and a 5 or fewer loser hand. Our 1H, 1S, 1NT are all 15 to 17- also, but NF.
In the 15 or higher range, we have 7 bids
1M = Either balanced or could have one singleton, no void and 9 or fewer cards in two longest suits
-4-5M,
-balanced, semi-balanced or 4441 hands.

1NT = 15-17 Natural NT, (31)(54), or (33)(61).
2NT = 6S, usually one suited 18-19
We also play in 3rd seat 2M natural 5+cards 0 to 14 and no distribution requirements. In 4th seat, it is 13 to 14.
In the 14 or lower range, we have 2M and higher suit preempts.
In 3rd/4th seats, we will pass 0-14 counts with no 5+M and no 6+m.
Other opening bids that may require advance preparation:
1C 1st/2nd seats = 10 to 14,
-any pattern,
-could be as short as 0,
-non forcing.

1D = 15 to 37
-artificial;
-forcing;
-could be as short as 0D;
-any pattern.
-Some negative inferences that opener did not opt to open 2D or 2NT;
-3rd/4th seats 17+ to 33, if 17, shows 5+controls

1N 1st/2nd seats = natural, (4441), (5431) or (6331). 4=4=(41) can be shown in relay. Others require representing a doubleton usually by moving it from the shortest 3+m. Opening with small singletons rare, but most likely with (31)(54) or (31)(63)
-10 to 12- HCP NV,
-12+ to 14 HCP V

1N 3rd/4th seats = natural or 6m(331)
-denies a major (i.e., 1-3 in each major),
-15 to 17-, 17 will usually have 2-4 controls

2D = 5+H;
-5H4m31 or 6+H;
-0-3S;
-strong;
-artificial;
-forcing;
-15 to 33 1st/2nd
-17+ to 33 3rd/4th, 17 will be 5+controls

2M = natural,
-10 to 14 1st and 2nd
-5M4m(31) or 6+M0-3oM

Responses that may require advance preparation:
1C-1R 1st/2nd seats = transfer, 0-11
1C-1S 1st/2nd seats = GF art.
1C-2C 1st/2nd seats = 12-13 HCP,
-artificial,
-Stayman,
-does not promise 4+M
1D-1H artificial;
-semi positive;
-forcing;
-1st/2nd seats 6 to 9 or a quick trick;
-3rd/4th seats 4+-7-, 4+ will have at least one control.

1D-1S artificial,
-double negative,
-non-forcing,
-no quick tricks,
-1st/2nd seats 0 to 5,
-3rd/4th 0 to 4, if 4, no controls

1D-1NT+ = artificial, game forcing

1M-2C 1st/2nd seats = artificial, game forcing
1M-2D = Art fitted+, inv (4+ card support ¾)
1M-2oM = NF not a drop
1N-2C 1st/2nd seats = artificial, game forcing
2C-2D = artificial waiting, rebid 2H longer H or 44, 2S longer S or 55
2C-2NT = weak with mm or D
2C-3C = artificial, invitational in H
2C-3D = artificial, invitational in S
2C-3H = 0-1S, 4+H, GF 1st/2nd
2C-3S = 4+S, 0-1H, GF 1st/2nd
2D-2S = Game forcing, artificial
2D-3m/3S = forcing, artificial inv+ (3C=other major, 3D=limit+, 3S=SPL)
2H-2S+ responses are like 2D-2S+ responses
2S-3m/3H = art inv (3C=nf no supp, 3D=5+H, 3H=limit+)

2NT-3C = GF art.
2NT-3D = Jacoby
2NT-4m = South African Texas transfer showing 6M in major two steps up

Competitive calls that may require advance preparation:
(1 of a suit natural) – 1NT = takeout,
-typically 8 to 17- 2nd seat
-10 to 19- 3rd/4th seats)

(1 of a suit natural) - Double = str NT overcall typically, 2+ in suit doubled, 2nd seat: 15 to 37, 3rd/4th: 17+ to 37,
-(1S)-X also shows a stopper;
-3rd/4th 17+ to 37

(1C natural) - 2D = 4+H, 5+D, 8 to 16 2nd seat only
(1m natural) - 2H = 4+S, 5+H, 8 to 16 2nd seat only

Opening Leads AND Leads in the Middle of the Hand

Opening lead: 3rd/low vs. suits, 4th vs. NT from suits we like. Attitude leads possible in partner's supported suit (low=like). K asks count (and vs. NT also unblock). A asks suit preference. K from AK when switching to xx, A from AK when switching to x. Standard honor card leads except for K asking unblock and A or Q not vs. NT. Middle of the hand: attitude when breaking a new suit. May lead suit preference (e.g. partner ruffing or count is already known/irrelevant).

Defensive Signals

Primary: standard suit preference throughout the hand.
-High asks for highest absolute side suit out of the two most likely (or 1 of the 2 higher if all three likely); typically T98, but if highest spot card from xxx is lower it is by agreement high.
-Middle asks for no switch
-Low is analogous to high

In a situation where there are only two relevant suits and one of them is the suit we are playing a card,
-if the other suit is lower, a low card asks for the other suit,
-if the other suit is higher a high card asks for the other suit

No attitude signal, we use suit preference instead (i.e. middle most encouraging by negative inference that it does not ask for a switch to a high or low suit)

Secondary: standard count.

Discards standard suit preference.

We will sometimes give suit preference in a count situation (e.g., king lead) if, for example, dummy has a singleton. We will sometimes give count in a suit preference situation (e.g. if preference is known or irrelevant).