Interactive training for chess openings, building repertoire and confidence.
Product memo
En Passant helps chess players master opening theory through interactive training. It moves beyond rote memorization, focusing on understanding critical ideas in specific positions. This approach builds a solid repertoire and confidence, serving players seeking a more effective way to study openings.
For who
Chess players learning openings
Solves what
Mastering chess openings with interactive training and repertoire building.
- Interactive opening training
- Stockfish practice bot
In their own words
Learn Chess Openings the Right Way
Practice chess openings with interactive training that actually works. Learn opening theory move-by-move, understand the key ideas, and build a solid repertoire you can rely on.
Learn chess openings through interactive training that builds real understanding. Practice opening theory in the exact positions you'll face, master the critical ideas, and play your openings with confidence.
Commercial cues
Model
subscription
Free tier
Yes
Trial
No
Pricing Strategy
- • Free tier lowers testing friction.
Operator context
Founded
Nov 2025
HQ
United States
Platform
Web app
Audience
Consumers
Payments
Polar
Public footprint
Tech stack
Builder Strategy
- Strategy Type
- Niche Specialist
- Stage
- Pre Revenue
- Effort
- Solo Buildable
About En Passant Expand
En Passant provides a specialized platform for chess players to master their opening game. It moves beyond traditional study by offering interactive, move-by-move training that emphasizes understanding critical ideas rather than simple memorization.
Players can build a confident repertoire, practice against a Stockfish bot, and track their progress through various openings. This focused approach helps users develop a deeper grasp of opening theory, making it a valuable tool for anyone looking to improve their early game strategy.