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Building Your System Card
Classify your system under the ABF System Regulations, fill in every section of the ABF system card for the Standard American 2/1 methods in this program, and keep your partnership agreements in order.
Your system card is your partnership’s promise to the opponents: “This is what our bids and signals mean.” The ABF requires every player to have one on the table, and both partners’ cards must be the same.
A good card does three things:
- It meets the regulations and gives the opponents full disclosure.
- It helps you and your partner remember what you’ve agreed.
- It protects you if there’s a dispute: the Director will look at it first.
This final module brings together everything you’ve agreed in Modules 1–11 and shows you how to write it down.
1. The rules about system cards
From the ABF System Regulations and Alerting Regulations:
- Each player must have a legibly completed, approved system card on the table, and the partnership’s cards must be identical.
- For gold-point (national) events, each pair must put two identical cards on the table for the opponents before play starts.
- Both partners must play the same system, including card play. If you and your partner often take different approaches as a matter of style, that difference must be shown on the card.
- Having something on your card doesn’t remove the obligation to alert it.
- During the play of a board, you may not look at your own card.
The ABF publishes a standard card and a guide for new players. The Bridge Centre’s reference section has blank ABF system cards to download, including a basic Standard American card and a SAYC card from our beginner course.
2. Classify your system: the coloured dot
Every ABF system card shows a coloured dot that classifies your one-level opening bids.
| Colour | What it means | Example |
|---|---|---|
| Green | Natural: all one-level openings are natural and non-forcing, 1♥/1♠ promise four or more cards, 1NT is balanced or semi-balanced, and every one-level opening promises at least 8 HCP | Standard American, 2/1, Acol |
| Blue | A strong, artificial, forcing 1♣ or 1♦, with natural 1♥, 1♠ and 1NT | Precision |
| Red | Any other artificial one-level opening (including a 1♣ that may be short, except with exactly 4-4-3-2 shape), or openings that change by seat or vulnerability | Polish Club, some short-club systems |
| Yellow | Highly Unusual Methods (HUM): for example, a pass that shows an opening hand, or a one-level opening that may be weaker than a pass | Rare; permitted only in some events |
Brown Sticker is an extra label for conventions that need special defensive preparation, such as weak two-level openings that don’t promise a known four-card suit, or weak two-suited bids that may contain only three cards in a suit.
The system in this program is Green, with no Brown Stickers. That also means you can claim Protected Pair status where it’s offered, if you’re eligible (Module 11).
3. Filling in the card, section by section
Here’s how the methods from this program would appear. Your own card should show your agreements; use this as a starting point.
Basic system
| Item | Example entry |
|---|---|
| Basic system | Standard American, 2/1 game force |
| Classification | Green |
Opening bids
| Opening | Example entry |
|---|---|
| 1♣ | 12–21 HCP, 3+ cards (announced “Three plus”) |
| 1♦ | 12–21 HCP, 3+ cards |
| 1♥ / 1♠ | 12–21 HCP, 5+ cards |
| 1NT | 15–17, may contain a five-card major (tick the box if you agree this) |
| 2♣ | Strong, artificial, 22+ HCP or 9+ playing tricks |
| 2♦ / 2♥ / 2♠ | Weak: 5–11 HCP, good six-card suit |
| 2NT | 20–21 balanced |
1NT responses
| Item | Example entry |
|---|---|
| 2♣ | Stayman |
| 2♦ / 2♥ | Transfers to hearts / spades |
| Other | Write any other agreements, such as 2♠ as a transfer to clubs |
Pre-alerts
Write anything the opponents won’t expect. For the methods in this program you may not need any. Typical pre-alerts are a weak redouble, transfer responses to 1♣ or unusual carding.
Competitive bids
| Item | Example entry |
|---|---|
| Negative doubles | Up to 3♠ |
| Responsive doubles | Up to 3♠ |
| Support doubles | Through 2♥ |
| Jump overcalls | Weak |
| Unusual 2NT | Two lowest unbid suits, 5-5 |
| Immediate cue of a minor | Michaels: both majors, 5-5 |
| Immediate cue of a major | Michaels: other major and a minor, 5-5 |
| 1NT overcall (direct) | 15–18, stopper |
| 1NT overcall (reopening) | 10–14 (or your agreed range) |
| Interference over our 1NT | Lebensohl, “slow shows” a stopper |
| Over opponents’ 1NT | Your agreed defence, or “natural” |
Basic responses
| Item | Example entry |
|---|---|
| 1♥/1♠ – 1NT | Forcing (unpassed hand), 6–12 |
| Two-over-one | Game forcing, not after interference or by a passed hand |
| Jump raise of a major | Pre-emptive: 4+ cards, 0–6 |
| Jump raise of a minor | Inverted: weak; single raise forcing |
| Major raises | Bergen (3♣ = 7–10, 3♦ = 10–12), Jacoby 2NT, splinters |
| Passed-hand raises | Reverse Drury 2♣ |
| Responses to 2♣ | 2♦ waiting, others natural positive |
Play conventions
| Item | Example entry |
|---|---|
| Leads from sequences | Top of a sequence (K from K Q J) |
| Leads from length | Fourth highest from length with an honour; second highest from four small (or your agreement) |
| Signal on partner’s lead | Attitude: high encourages |
| Signal on declarer’s lead | Count: high-low shows an even number |
| Discards | Your method, e.g. high encourages, or odd/even |
Whatever you play, it must be disclosed: the ABF does not allow encrypted signals.
Slam conventions
| Item | Example entry |
|---|---|
| Ace asking | RKCB 1430; queen ask by the next step; 5NT asks for kings |
| Control bids | First- and second-round controls, cheapest first |
| Interference over 4NT | DOPI |
| Other | Exclusion Blackwood by unusual jumps to five of a suit |
Other conventions
List everything else: new minor forcing (or XYZ), fourth suit forcing (game forcing), Lebensohl, and anything else you play.
4. Beyond the card: your system notes
The card is a summary. Many agreements won’t fit on it. Keep a set of partnership notes as well:
- Write down auctions you’ve discussed: “1♠ – 2♥ – 2♠ – 3♥ is forcing.”
- After each session, add any auction that caused confusion, and what you’ve now agreed.
- Keep notes short and organised by topic: openings, responses, competition, slams, defence.
- Read them together before a congress.
If you play a Yellow system, or Brown Sticker conventions, the ABF may require supplementary sheets (on one side of an A4 sheet, typed or legibly written) and, in some events, advance copies of your notes. Any pair may also lodge a fuller description of their system with the Tournament Organiser; it can help if there’s later a dispute about what your agreement was.
5. Keeping the card up to date
- Review your card every few months with your partner.
- Remove conventions you don’t really play. A long card full of methods you’ve forgotten causes more disasters than it prevents.
- Add one method at a time, and only when you’ve both read about it.
- Carry spare copies in your bridge bag, especially for gold-point events, where you need two.
Rules worth remembering
- Both partners need identical, legible ABF system cards on the table.
- Two cards for gold-point events.
- Classify your system: this program’s Standard American 2/1 is Green, with no Brown Stickers.
- Fill in every section that applies, including leads and signals.
- A card entry doesn’t replace an alert or a full explanation.
- Keep partnership notes for agreements that don’t fit on the card.
- Review your card regularly and remove what you don’t play.
Try these
1. Your partnership plays a 1♣ opening that promises three or more clubs, five-card majors and a 15–17 1NT. What colour is your system?
2. Your 1♣ opening could be a doubleton club in hands other than 4-4-3-2. What colour is your system now?
3. You’ve agreed Michaels on your card. An opponent asks what partner’s 2♥ cue bid means. What do you say?
4. You’re entering a gold-point event. How many copies of your system card does your pair need on the table for the opponents?
5. You and your partner have different styles about responding with a four-card major over 1♦. What should you do?
Answers
1. Green. All one-level openings are natural, the majors promise four or more (five here), and 1NT is balanced.
2. Red. A 1♣ opening that may be short (except with exactly 4-4-3-2 shape) makes the system Red.
3. Give the full meaning, not just the name: for example, “Five or more spades and five or more cards in a minor, either weak or strong.”
4. Two identical cards: one for each opponent.
5. Show the difference on your system card. The ABF System Regulations require partners who often take different approaches to disclose it. Better still, agree a single style.
Words to know
| Term | Meaning |
|---|---|
| System card | The ABF-approved form showing your partnership’s bidding and card play agreements |
| Green / Blue / Red / Yellow | The ABF colour classification of your one-level opening structure |
| Brown Sticker | An extra classification for conventions that need special defensive preparation |
| HUM | Highly Unusual Methods: the Yellow classification |
| Supplementary sheet | An extra page that explains methods needing defensive preparation |
| Partnership notes | Your own detailed record of the auctions and agreements you’ve discussed |
| Full disclosure | The principle that your opponents are entitled to know all your agreements |
What next?
- Fill in a new ABF system card with your partner, using this module as a checklist.
- Start your partnership notes with the auctions from Modules 1–4.
- Enter a congress, take two copies of your card, and enjoy putting the whole program into practice.
Congratulations on finishing Advanced Bridge. The next step is simply to play: congresses, teams events and, if you’d like, helping newer players at your club as a mentor or Director.
Further reading and external documents
Official
- ABF System Regulations (PDF): classification (section 2), disclosure and system cards (section 3).
- ABF System Card Guide for New Players (PDF): a section-by-section guide to the card.
- ABF Alerting Regulations (PDF)