Introducing Bidly: Bridge Hand Recognizer & Solver

bridge
Published

September 25, 2023

Bidly is a mobile app (only on Android for now) I built for contract bridge lovers. By taking a photo of a complete bridge hand, it recognizes all 52 cards and assigns them to four players based on card locations. Then, the highest contract for each player is solved by a Double Dummy Solver.

The following screenshots should be self-explanatory.

Taking a photo

Manual assignment (not always needed)

Results

Text-only results

Limitations & Known Issues

For now, bidly has difficulties

  • recognizing cards with non-standard symbols;
  • recognizing cards when the lighting condition is not ideal;
  • recognizing cards when they are too far away from the camera.