SystemCard turns your partnership agreements into a digital convention card that opponents can open on any phone, tablet or computer.
Watch the short video - see SystemCard in action
SystemCard is currently being tested with bridge players and clubs.
How it works
Send us a photo of your current convention card, or tell us which system you play.
We turn the agreements into a clear, structured SystemCard.
Give opponents access through a link or QR code, and print a current version when required.
Who it serves
A SystemCard is maintained by the partnership, but its primary purpose is disclosure. It gives opponents a clear and accessible view of the agreements the pair plays, subject to the rules of the event.
Why digital
Agreements are presented in a consistent format that opponents can understand.
Update one digital card when the partnership changes an agreement.
Use a link, QR code or printable version according to the event's requirements.
Live examples
Explore working digital cards for partnerships and bridge systems from different countries and playing traditions.
Prefer a walkthrough? Watch the short video.
For clubs
SystemCard Club lets every pair in a tournament prepare on the confirmed methods of the opponents they are scheduled to meet - the kind of preparation major events have always had.
Get started
Send us a photo of your paper convention card, or simply tell us which system you play. We will prepare your first digital SystemCard as part of the current test.
Free during the current test. No payment, no obligation - we will contact you personally.
We only use your email to prepare your card and let you know when SystemCard is ready for your club. No sharing, no spam - you can ask to be deleted at any time by writing to mail@techbridge.dk.
We've recorded your sign-up and your consent to be contacted. A confirmation email is on its way to your inbox - and we'll reach out personally as soon as there's something to try. You can revisit anytime at systemcard.dk.
Curious what club support will look like? See SystemCard Club.
SystemCard works best when your partner uses it too. Send them the link from your own phone or email.
Prefer email? Send a photo of your card directly from your own inbox to mail@techbridge.dk.
The story behind SystemCard
SystemCard began as a solution to a practical problem in bridge. Along the way, the project raised larger questions about technology, documentation, human behaviour and trust. That journey became the book When Trust Becomes Data.
Available in English and Danish. No payment required.
Ready for the full book? Order it here - PDF edition from €12.