Free: €0 forever with unlimited exercises, games vs AI, and access to levels 1-3. Pro Lifetime: €39 one-time payment for all 7 levels, all 8 AI difficulties, famous games library, endgame training, and intermediate tactics.
Key features
Hatch and name your own Buddy
Care for pet needs: feed, rest, tidy up
Buddy moods that respond to care
Mini-games, collections, and achievements
Works on desktop and mobile browsers
No download or installation needed
Play without signing in first
7 progressive training levels from square colors to full blindfold games
Unlimited exercises and games against AI
Voice-controlled play in 6 languages
Progress tracking and achievement system
Cross-device synchronization
Famous grandmaster games to replay blindfolded
Endgame training module
Multiple board visibility modes
Tactical puzzles and exercises
What makes it different
Free to play core experience entirely in your browser with no download required
AI Buddy that stays in character and remembers you over time with membership
Designed for small breaks without becoming a chore
Pet moods and needs evolve based on how you care for them
Play without account creation, save progress later when ready
Systematic progression from fundamentals to blindfold mastery, not just a side effect of puzzle training
Free tier is genuinely free with no dark patterns or engagement manipulation
One-time €39 lifetime payment with no subscription required
Built and maintained by a single indie developer actively improving the product
Available across web, iOS, and Android with unified account