What is an AI chess coach?
A coach that sits beside the board and explains chess in plain language: what a position needs, where the threats are, and why a move worked or failed. Instead of an evaluation number, you get the reason, at your level, with the moves shown on the board.
Can I practice a position from one of my own games?
Yes. Paste a FEN or a PGN on the mentor page, or open a position from the Review board, the Opening Lab or a training puzzle with "Practice with mentor". Import your Chess.com or Lichess games first if you want to start from them.
Is the AI chess coach free?
You can use it on a free account. Starting a session uses one credit, and free accounts receive five credits every month. Resuming a saved session is free, and hints, position tips and explanations inside a session cost nothing extra. The AI membership comes with many more credits.
Does it just tell me the best move?
Only when you ask for it. A position tip first tells you what the position needs and where to look, and the good moves come at the end. When you ask about a move, the explanation is about why: what it allowed, what the reply would have been, and what was better.
Can it explain my opponent's moves too?
Yes. Pick any move in the move list, yours or your opponent's, and press Explain. For an opponent's mistake it tells you how to punish it; for a strong move it tells you what it threatens.
What level of player is it for?
Any level. Set "Explain for" to Beginner, Intermediate, Advanced or Expert and the coach writes for that reader: simple words with every idea spelled out for a beginner, concise and technical for an expert. The opponent's strength is set separately.
How does an AI chess coach help me improve?
By turning the positions you get wrong into ones you understand. When you ask about a mistake, the coach shows what was better and leaves you one thing to remember. You can retry the moment until it makes sense, and save a position to try later with the hints hidden.
How strong is the opponent?
You choose. Level 8 is Stockfish at full strength and plays its best move every time. Levels 1 to 7 use Stockfish's own Skill Level setting, so the opponent gets weaker and makes realistic mistakes rather than random ones. You can change the level in the middle of a game.
How do I know an explanation is right?
Every explanation is written from lines Stockfish actually played out, and before you see it, any move it names that is not in those lines, or not legal in the positions they pass through, is sent back or cut. You do not have to take the words on trust either: each line is a button that plays its moves on the board.
Can an AI chess coach replace a human coach?
Not entirely. It is there for every move of every game and never tires of the same question, which no human coach can be. A good human coach still decides what to work on over months and notices things about you that a single game does not show.