Everything you need to play sharper.

Built for chess lovers, from absolute beginners to club players.

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113 Openings Library

Sicilian, Ruy López, Italian, French, Caro-Kann, King's Indian and 107 more — every classic, sortable by ECO code, attack/defense, or opening move.

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Play vs Strong AI

In-house bot, 8 preset levels. Tune its time, depth, blunder rate and suboptimal-move rate. Continue any opening into a real game.

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Daily Quiz

Find the next book move. Build streaks, beat your high score, and burn the theory into muscle memory.

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Practice Mode

Step through each line move by move with auto-play, threat hints and inaccuracy detection. Learn by playing — take over against the bot mid-opening, with White or Black.

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Game Analysis

Review your games move-by-move. Spot blunders, find brilliancies, and understand why a move worked.

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2-Player Local

Hand the phone over. Castling, en passant, promotion choice, all draw rules — full FIDE legal play.

Privacy is the default. Not a feature.

Everything runs on your device. No account. No tracking. No ads. Your moves never leave your phone.

No ads No tracking No account 100% offline

Simple pricing. No traps.

Try it free forever. Upgrade only if you love it.

Free

$0 forever

Everything you need to start.

All 113 openings to view
Practice mode
1 quiz per day
1 game analysis per day
Bot 800-2400 Elo, fully customizable
Local 2-player

Master 113 chess openings.

Everything you need to play sharper.

Privacy is the default. Not a feature.

Simple pricing. No traps.

Your next move starts here.