Sharpen your game
Five ways to train, all free, all in your browser. Drill openings until they’re second nature, test your memory, solve real-game puzzles, or evaluate a position with Stockfish.
Opening Drill
Pick an opening, choose your color, and play the moves. The computer plays the book line back — miss one and we catch it on the spot.
Start drillingMemorise the Position
Study a position from a real opening, then reconstruct it from memory. Tests how well you actually see the board.
Test your memoryPuzzles from Real Games
Solve blunders and missed tactics extracted from actual grandmaster games. Find the move they missed.
Solve puzzlesFree Analysis
Paste a position, get instant Stockfish evaluation in your browser. No signup, no daily limit.
Open analysisOpening Explorer
Live position-keyed tree of 4 billion Lichess games. Click any move to drill deeper, or switch to Masters to see how strong players handle it.
Explore positions