Custom Bridge Simulations
Set constraints. Generate many deals. Run double-dummy analysis. Compare actions by expected performance. Bridge deal simulation built for serious players.
Constraints
Express what you know: HCP ranges, suit lengths, shapes, and auction context.
Generate many worlds
BridgeDummy generates many possible deals consistent with your constraints to reduce single-deal noise.
Compare decisions
Evaluate candidate actions (bids/leads) by expected outcome across generated deals using double-dummy analysis.
Watch it in action
Four short videos: from your first simulation to conditional contracts.
Read the full written guide1. Getting started: bidding simulations
Enter your hand, constrain the unseen hands, pick up to 4 bids and compare average score, IMPs, making percentage and matchpoints.
2. Lead simulations
Pick the contract you defend and see which opening lead wins at matchpoints vs IMPs, with sample deals to inspect.
3. Constraints masterclass
Shape flags, key cards, controls, stoppers and OR-alternatives: describe exactly what the auction told you.
4. Conditional contracts and power tools
Build if-then bids like 4 spades if partner has 3-card support, else 3NT. Plus templates and saved simulations.
FAQ
- What are custom bridge simulations?
- Custom bridge simulations let you define an auction and constraints (shape, points, suit lengths) and then generate many deals to evaluate decisions using double-dummy analysis.
- Can I simulate bridge deals with constraints?
- Yes. BridgeDummy supports auction-based deal simulation and constraint-driven deal generation for advanced analysis and practice.
- Is this a Monte Carlo simulation?
- BridgeDummy generates many deals consistent with your constraints and evaluates outcomes across them. In practice it behaves like Monte Carlo simulation for bridge decision analysis.