You know the loop. (We wrote about how to review your games and how to stop repeating mistakes too.) You play five games on your phone, lose two in ways that feel unfair, win three that feel lucky, and by the evening you could not name a move from any of them. Tomorrow you open the same app, get the same puzzle, and the year goes by.
Your games are not a mystery, though. Fifty games of anybody's chess contain a pattern so obvious a computer finds it in seconds and so personal no opening course will mention it. You are not bad at chess in general. You are bad at one specific thing, repeatedly, in one particular moment of the game. FireChess goes looking for it in the only place with the evidence: the games you have already played.
Two minutes, no card
You type your chess.com or Lichess username. That is the whole setup. The site pulls your recent games and puts every move through Stockfish while a scan screen shows you a puzzle to solve, because waiting is boring and a puzzle is not.
The scan reads your last fifty games on the free tier. What comes back is not a wall of engine numbers but a story, one card at a time, like someone who has looked at your games sitting across the table: how many it read, how accurately you played, a score out of a thousand. Then it gets specific. Here is the move you will remember out of the batch, and what the engine would have played instead. Here is your best win, with the move that finished it.
And then the card you came for: the leak.
The word you would rather not read
The site names leaks in plain language, because a name you can say out loud is a thing you can practise. Fast moves: you play quickly where nothing was urgent. Time trouble: you are fine until the clock is short, and then you are not. Thrown wins: you get the advantage and let it go. Tilt: the game after a loss is not a new game (more on tilt).
You will recognise yours instantly, and that is worth more than a month of watching other people's games. The practice stops being "study chess" and becomes "stop throwing away winning positions" — smaller, and finishable.
What practice looks like after that
The lessons are tied to the leaks your scan found, so a player whose leak is thrown wins is handed the actual skill of finishing a game.
Take one. You are a rook up, one square from promoting. Your own king stands on the square the pawn needs, and the black rook keeps checking you away. The lesson does not open with a question. It shows the position, says out loud what it feels like — "the pawn never gets to queen and the win slips away" — then shows the answer: the rook climbs to the fourth rank, the king walks toward it, and when the check comes the rook steps in between, shielded by its own king. A bridge.
You see it once with a voice talking you through each move. Then the board goes quiet and it is your turn to build the bridge, with a hint or a plain explanation if you get it wrong. You do not read about the fourth rank. You move a rook to the fourth rank.
Same for the rule that finishes more won games than any opening: when you are ahead, trade the pieces that give your opponent chances and keep the pawns that can become queens. That lesson opens on a real position from a world championship match, then hands you the board. More than thirty lessons work this way, most of them spoken aloud, so your eyes stay on the position instead of on a paragraph.
The bit that keeps you honest
Reading is not practice, and practice is not a habit. That is what the Today page is for: a ring, a streak and five tasks a day built from your own mistakes — a drill on the position you got wrong, a lesson for the leak underneath it, a short target. Not five hundred puzzles. Five things from your games, each with a tick box.
You keep playing on whatever site you already use. FireChess reads the new games and the tasks change with them: play, lose in the usual way, see it named, practise that thing, play again.
And when you want the opposite of studying
Some evenings you do not want to be improved. You want nonsense, and that is Chaos Chess (here is how to play it): powers drafted during the game — permanent modifiers you and your opponent each draft as the game goes on. It is not a teaching tool. It is the reason to open the app on a Friday.
The rest sits alongside: real Lichess puzzles, and a Master Match that scores your style and puts it next to twelve champions.
What a good outcome looks like
Not a rating jump by Friday: ratings wobble.
The outcome worth having is narrower: you stop losing the same game twice. The next time you are a rook up with the clock running down, you do not relax into it, because you have already sat in that position and built the bridge yourself. Your opponent has not.
That is the whole pitch, and it is not really about the site. Your games were always the lesson. Somebody just had to read them back to you.
Start at firechess.com/start with the username you already have. Fifty games, about two minutes, no card.