Welcome to the geometric DNA of Bridge. These nine patterns make up nearly 90% of all Bridge hands you will ever play. Mastery of the game doesn’t require memorising every card; it requires understanding the Physics of the Hand Shape and following the correct strategic protocol.
The Engine of the Bridge Probability Lab
This database is the core reference for the Bridge Probability Lab and your Detective Room investigations. It is designed to help you solve the “Mystery of the Hidden Hands” by using mathematical probability and defensive inference. Whether you are a student of ACOL or SAYC, these files provide the evidence you need to make the winning move.
How to Use This Database
This is not a textbook to read from start to finish—it is a Live Lookup Tool. Use it as a constant companion during your post-game reviews or study sessions to refine your instincts:
- Identify the Shape: Focus on the specific distribution you are analysing (e.g., 5-4-3-1).
- Click on the Title: Click the corresponding panel below to open its file.
- Consult the Protocol: Study the specific instructions for Bidding, Declarer Play, and Defence.
SHAPE #1: 4-4-3-221.6% Frequency |
SHAPE #2: 5-3-3-215.5% Frequency |
SHAPE #3: 5-4-3-112.9% Frequency |
SHAPE #4: 5-4-2-210.6% Frequency |
SHAPE #5: 4-3-3-310.5% Frequency |
SHAPE #6: 6-3-2-25.6% Frequency |
SHAPE #7: 6-4-2-14.7% Frequency |
SHAPE #8: 6-3-3-13.5% Frequency |
SHAPE #9: 4-4-4-13.0% Frequency |