chess flex

Chess that
teaches.

ChessFlex for Android. Six human-like bots from 400 to 2500, with real ELO and clocks, or a friend on the same phone. And a voice coach that reviews your own games. No accounts, no ads, no internet access at all.

Study Coach Play Nc3 — it's about level.
Why ChessFlex
Chess, stripped back to the game.
♞

Human-like bots

Six built-in bots from 400 to 2500. Pawn through Queen play like real people at their level — human mistakes, not random ones. King, at 2500, is a true engine for serious sparring. All free, rated from the first game, with clocks from Blitz to Classical.

♛

Coach this game

Open a finished game and the Coach replays it move by move, finds the move that mattered and the better one, and sums it up at the end — in English, Hindi, Tamil or Malayalam. Share the summary as a card with the final board.

♜

Watch and learn

Two bots play while a voice narrates. Seven voices, from a calm Coach to a cricket coach, a nature documentary and a Bard who tells the game as a war between two kingdoms — even a Persian Shatranj. The Coach and the Bard also speak Hindi, Tamil and Malayalam, and in Malayalam there is vallam kali, a game called like a snake-boat race.

✦

Nothing leaves your phone

No account, no ads, no tracking — and the app has no internet access at all. The engine, the bots, the coach and its voices all run on your phone, and your games stay there.

See it on Android
See it, and hear it.

First launch and voices

A new phone, from the welcome pages to your name at the board. Add voices in Profile › Voices, then hear four narrators: the Bard in Hindi, the Coach, a wildlife documentary and vallam kali in Malayalam. 60 seconds.

The Study Coach and Coach this game

Three ways forward on the board, answers to “Best move?”, “What's the threat?” and your own questions, then the Coach replays the game, finds the key moment and sums it up. 97 seconds.

വള്ളംകളി · Vallam kali

Chess called like a snake-boat race: two bots row for the finish while the commentator calls every move in Malayalam, crowd and all. Rook 1600 against Queen 2000, to checkmate. 60 seconds.

The Bard, in Malayalam

Sahyadri of the mountains against Pambar of the river: the Bard tells a bot game as a war between two kingdoms, in Malayalam. The battle scenes are AI-generated; the game and the voice are the app. 45 seconds.

Learn as you play.

One-time purchase · yours for good

STUDY

"It showed me why the move was a blunder — not just that it was."

Playing, ratings, and opening names stay free, always.
Support
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Privacy

ChessFlex has no accounts, no analytics and no ads, and on Android no internet access at all. Your games stay on your phone.

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About ChessFlex

Built by Labham LLC — a sibling to LexFlex. Everything runs on your phone, with no servers at all.

Meet LexFlex →