AI chess tutor · Backed by Stockfish

Your personal chess tutor.

It knows your games from Chess.com and Lichess.org, what you do well and what we'll work on together. Every week: puzzles at your level, visualisation, games against Luny, and a coach for any move.

What you can train

Everything built around your games.

Your tutor

Know your game. Train what matters.

Link your Chess.com or Lichess.org account, and Stockfish goes through your last 100 games. Your report shows what you do well and what we'll work on together, and every week your plan turns one of those into a little training each day.

A report: a player rated 1500 in blitz
  • Few slips in the middlegame

    You avoid slips in the middlegame better than players rated like you.

  • Turning winning positions into wins

    Players rated like you are a step ahead here, so it's a good place to win more games. Once you're winning, look at your opponent's checks, captures and threats before each move: safe beats fast.

  • Punishing your opponents' mistakes

    Players rated like you are well ahead here, so this is where you have the most to gain. After each of your opponent's moves, ask what changed: a loose piece or an open king is your chance.

Their week
  1. Monday: all done
  2. Tuesday: all done
  3. Wednesday: started
  4. Today: nothing yet
  5. Friday: coming up
  6. Saturday: coming up
  7. Sunday: coming up

This week Turning winning positions into wins

Once you're winning, look at your opponent's checks, captures and threats before each move: safe beats fast. From the report

Today

  • See where this came up in your games Done
  • 5 puzzles: Advantage 2 of 5
  • Play on from your game against knightowl You were winning after 23.Nf5: can you finish it against Luny?

Your coach

Ask about a move. See the answer on the board.

Morphy's Opera Game, Paris 1858. Hover or click the moves in the chat to see them on the board, or step through the game.

…

Mistake Blunder

Puzzles

Puzzles picked for you.

Millions of puzzles from real games, at your level. Your puzzle rating follows how you solve, overall and in every theme and opening, so you see what you do well and what we'll work on together.

White to move: find the best move.

From a real game on lichess.org. The game ↗

Ghost puzzles

Picture it before you play it.

The board stays a few moves behind. Watch the ghost moves, picture where the pieces stand after them, and find the tactic: training for seeing ahead, the skill behind every calculation.

The board is two moves behind. Watch the ghost moves.

Ghost moves

Tap a piece's square, then where it goes. From a real game on lichess.org. The game ↗

Luny

A sparring partner who plays like a person.

Luny plays human moves at your level, in the style you choose. Practise an opening until it's yours, or play on from a position of your own games and finish the win that got away.

Pick an opening and play it.

Opening
You play
Luny's style
Trades

In your games, the style and trades give Luny a gentle lean. Here, Luny answers from the opening's known lines.

Coaching prompts

Make the coach your own.

A prompt decides how the coach works for you: how deep it goes, how much jargon it uses, how long its answers are. Here's the question from the game above with each built-in prompt.

Prompt

What's the best move here? Morphy's Opera Game, after 15...Nxd7

16.Qb8+!! wins on the spot: a queen sacrifice that mates in two, 16.Qb8+ Nxb8 17.Rd8#.

  • The knight on d7 is Black's only defender. It blocks the d-file and is the only piece that can take on b8. Taking the queen pulls it off the file, and the rook comes to d8.
  • The king has nowhere to go. The bishop on g5 covers e7 and protects d8, while Black's own bishop on f8 and pawn on f7 take the other squares.

Other moves give Black time. 16.Qb5, pinning the knight, even throws the win away: after 16...Be7 17.Bxe7 Kxe7 the bishop on g5 is gone, and it's a draw.

White has something crushing here. Can you find it yourself?

  • Look at Black's knight on d7. What is it doing for Black right now? It has more than one job.
  • Now look at White's rook on the d-file. Which square would it love to reach, if only the knight weren't in the way?
  • Is there a check that forces the knight to leave its post, even if it costs you something big?

Give it a try: which move would you play?

White can win right away by giving up the queen!

  • 16.Qb8+ puts Black's king in check. The only way out is to take the queen with the knight: 16...Nxb8.
  • But that knight was standing in the way of White's rook on the d-file (the column the rook is on). Now 17.Rd8 is checkmate: the rook attacks the king, the bishop on g5 protects the rook, and the king has no square to run to.

This trick is called a deflection: you lure a defender away from the job it was doing. When one enemy piece guards something important all on its own, look for a way to pull it away.

None of them quite right for you? Copy one and change it, write your own from scratch, or pick one other players share.