Master chess through legendary games by replaying iconic positions and testing your calculation against the engine
Free daily spot the difference game with 5 new puzzles every day
Stage
Startup
Not given
Founded
2026
Not given
Based in
Not given
FI
Pricing model
Freemium
Free
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. Optional in-game coin packs available for purchase to spend on helpers and customizations.
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
5 new puzzles daily from Easy to Hard difficulty
Timed challenges with countdown timer
Collect stars, coins and stickers
Daily streak tracking
Endless mode for continuous play
Duel mode to challenge friends
Weekly tournament competition
Relax mode without time limit
Zoom tool to look closer at images
Detective name customization for tournaments
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