Master chess through legendary games by replaying iconic positions and testing your calculation against the engine
Don't hand them the win
Stage
Startup
Not given
Founded
2026
Not given
Based in
Not given
Not given
Pricing model
Freemium
Freemium
Pricing
Player plan: $4.99 per month or $50 per year. Yearly billing saves 16% and works out to $4.17 a month. Includes unlimited positions, record and export, 1080p quality, and basic AI analysis. 30-day money-back guarantee.
Free to play with ads. Optional one-time purchase to remove ads, and separate purchase to unlock two extra board themes.
Key features
Replay iconic chess positions from legendary games
Test calculation against AI engine
Challenge friends with shareable links
Compare continuation against best engine line
Game recording and export
Basic AI analysis
1080p quality output
Play against engine from any position
Curated library of historic positions
Free position challenges without account
Pass-and-play for two players on one device
Daily puzzle
Challenge a friend with puzzle codes
Eight language support
Fully offline gameplay
Tablet-optimized layout
Optional ad-free upgrade
What makes it different
Play from the exact moment of legendary games, not just study them
Designed for pausing chess videos to calculate positions
Step into the shoes of chess legends at critical game moments
Compare your moves directly against engine analysis
Built by an indie hacker solving a personal chess problem
Your opponent chooses the piece you place, creating unique strategic tension
Playable completely offline with no account required
Challenge friends asynchronously using puzzle codes
Five AI difficulty levels including unlockable Grandmaster mode