Voice chess trainer: name squares out loud, train blindfold, play Stockfish by voice, and drill openings or your own repertoire, tactics, middlegame lessons and endgames. Free plan, Pro from US$6.99 a month.
A startup from the United States.
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ChessTrainer.ai is a voice chess trainer that starts with the board itself. A square lights up and you name it, out loud or by tapping, and at the end you get a map of the squares you missed. From there the drills move on to square colours, knight paths, diagonals and Blindfold Squares, where you answer without seeing the pieces.
The rest of the curriculum follows in order: openings you learn and then drill, with review dates spaced out so lines come back before you forget them; your own repertoire, pasted as PGN or a Lichess study link; middlegame lessons with quizzes; daily tactics puzzles; and endgames played out against Stockfish in your browser, with tablebase verdicts on Pro. You can also play whole games against Stockfish by voice at 8 levels, with the board hidden for blindfold play. Today's session puts a short plan together each day, and Profile shows your accuracy and speed week by week.
Free, with no time limit and no card: Name the Square and Find the Square at every level, level 1 of every other drill, voice answers, streaks and leaderboards, 5 puzzles a day, 1 voice game a day, 1 small repertoire, 3 openings, 3 middlegame lessons and 3 endgames. Pro (US$6.99 a month or US$49 a year) adds every drill level, all 12 openings, 20 repertoires, 25 lessons and 20 endgames, unlimited puzzles and games, and puzzles from your own Lichess, Chess.com and ChessTrainer games. A 3-day streak earns 72 hours of Pro, once, with no card.
Runs in the browser on desktop and phones. Voice answers work in Chrome, Edge and Safari.
Listed in
Voice answers
Say squares and moves out loud; on-device speech recognition on supported phones
Blindfold training
Blindfold Squares drill and voice games against Stockfish with the board hidden
Spaced repetition
Openings and your own PGN or Lichess study repertoire come back on review dates
Play Stockfish by voice
8 levels from about 800 to 2400; ask where a piece is during blindfold games
Puzzles from your own games
Positions you got wrong in Lichess, Chess.com or ChessTrainer games become puzzles
We are a small team of three. Our company's mission is to preserve human intelligence, and chess visualization is a clean example of a skill that only grows when you do the work in your head. We started with one drill, naming squares out loud, because we could not find a trainer that took the board itself seriously, and built the rest of the curriculum on top of it: openings, lessons, tactics, endgames and voice games against Stockfish.
SvelteKit for the web app, served as a static site through Amazon CloudFront; a small API in TypeScript (Hono) on AWS Lambda with DynamoDB; Stockfish compiled to WebAssembly, running in your browser for endgames and games; on-device speech recognition (Vosk) with the browser's Web Speech API as a fallback; and the Lichess tablebase for endgame verdicts.
Choose it if you want to train visualization and calculation rather than collect puzzle points. Blindfold play and board vision are a side feature elsewhere; here they are the core, with short daily drills, voice answers, and voice games against Stockfish with the board hidden. You can bring your own openings as a PGN or a Lichess study and drill them with spaced review, and Pro turns mistakes from your own Lichess, Chess.com or ChessTrainer games into puzzles. The free plan has no time limit and needs no card.
It is built around voice and the board itself. Most chess sites start with puzzles or lessons and assume you can already see the board. ChessTrainer.ai starts one step earlier: name squares out loud, find them, read square colours, trace knight routes and diagonals, then answer with the pieces hidden. The same voice input runs through the rest of the app, so you can drill openings, solve endgames and play whole games against Stockfish without touching the board. On supported phones the speech recognition runs on the device, so it answers quickly and your voice is not sent to a speech service for every move.
Adult improvers from beginner to club level, roughly 800 to 1800, who play online and want to see the board better: people who lose track in calculation, want to try blindfold chess, or want openings to stick. Many train on a phone in short sessions, which is why everything can be answered by voice.
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