Progressive blindfold chess training from square recognition to full games
Fast word unscrambler and anagram solver for Scrabble, Words with Friends, and word games
Stage
Not given
Not given
Founded
Not given
Not given
Based in
FR
Not given
Pricing model
Freemium
Free
Pricing
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.
Not given
Key features
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
Instant letter unscrambling with 286,000+ tournament words
Wildcard blank tile support with all 26 alphabet permutations
Results grouped by word length and ranked by Scrabble points
Dictionary definitions and grammatical parts of speech
Word Vault for saving and studying difficult words
Support for Scrabble TWL06, CSW21 and Words With Friends lexicons
Official 2-letter words page with A-Z filtering and scoring
Board hook and anchor constraints for board placement
What makes it different
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
Zero server latency—all processing happens client-side in your browser
Works completely offline as a downloadable PWA app
Tournament-grade accuracy with official Scrabble and Words With Friends dictionaries
DarkSquares
Word Unsc