Free chess tools

Every tool you need to get better

A free Stockfish analysis board, rated puzzles, an opening explorer, and a board editor — all in your browser, no account required.

Analysis Board

Drop in any game or position and let Stockfish do the heavy lifting.

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Puzzle Trainer

Sharpen your tactical eye on 3,100+ ELO-rated puzzles that get harder as you improve.

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Opening Explorer

A curated library of the main openings for White and Black.

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Board Editor

Build any chess position from scratch.

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Chess position, White to move. White has king on e1, queen on d1, rooks on a1 and h1, bishops on c1 and c4, knights on b1 and f3, pawns on a2, b2, c2, d2, e4, f2, g2 and h2. Black has king on e8, queen on d8, rooks on a8 and h8, bishops on c8 and f8, knights on c6 and f6, pawns on a7, b7, c7, d7, e5, f7, g7 and h7. Arrows mark the moves from f3 to g5 and from c4 to f7. The f7 square is highlighted.
The analysis board draws Stockfish's top candidate moves right on the position.

Analysis Board

Drop in any game or position and let Stockfish do the heavy lifting — best-move arrows, a live evaluation bar, and full move navigation. No account, no limits.

  • Up to 5 best-move arrows
  • Live evaluation bar
  • Full move navigation
Open the Analysis BoardLearn more
Chess position, White to move. White has king on g1, queen on d1, rooks on a1 and f1, bishop on e2, knights on d2 and f3, pawns on a2, b2, c3, d4, e3, f2, g2 and h2. Black has king on g8, queen on a5, rooks on a8 and f8, bishop on e6, knight on c6, pawns on a7, b7, c5, d5, f7, g7 and h7. An arrow marks the move from f3 to e5.
Rated puzzles from real games — find the move, and watch your rating climb.

Puzzle Trainer

Sharpen your tactical eye on 3,100+ ELO-rated puzzles that get harder as you improve. Train at your own pace, race the clock in Puzzle Rush, or solve the Daily Puzzle.

  • Adaptive difficulty
  • Puzzle Rush
  • Daily Puzzle
Open the Puzzle TrainerLearn more
Chess position, White to move. White has king on e1, queen on d1, rooks on a1 and h1, bishops on c1 and f1, knights on b1 and g1, pawns on a2, b2, c4, d4, e2, f2, g2 and h2. Black has king on e8, queen on d8, rooks on a8 and h8, bishops on c8 and f8, knights on b8 and g8, pawns on a7, b7, c6, d5, e7, f7, g7 and h7. Arrows mark the moves from b1 to c3 and from g1 to f3.
Play through the main lines for White and Black, one move at a time.

Opening Explorer

A curated library of the main openings for White and Black. Step through each line move by move, see Stockfish's take on every position, and drill the theory until it sticks.

  • Curated White & Black lines
  • Play through the theory
  • Stockfish on every position
Open the Opening ExplorerLearn more
Chess position, White to move. White has king on e3, pawn on e2. Black has king on e5. The e2 square is highlighted.
Build any position — endgames, studies, puzzles — then send it to Stockfish.

Board Editor

Build any chess position from scratch — place any pieces freely, even multiple queens — choose the side to move, and hand it straight to Stockfish for instant analysis.

  • Place any piece, anywhere
  • Even illegal-looking material
  • Side to move & flip
Open the Board EditorLearn more

Leaderboard

See the top puzzle solvers and where your rating ranks.

Saved Games

The extension auto-saves your Chess.com and Lichess games — replay and re-analyze any of them.

Analyze every game as you play

The tools are free. The ChessSolve extension takes it further — live Stockfish arrows and evaluations right on Chess.com and Lichess.

Get the extension freeSee pricing