Chess411 - Puzzles & Analysis

Review your games with Stockfish 18, as many as you like, and get told in plain English where each one turned. Game review Type your Chess.com or Lichess username and your recent games are there to pick from, or paste a PGN from anywhere. Every move gets a verdict, from best move to blunder, and both players get an accuracy score. The part you will actually use is the coach: after each mistake it says what you missed, what the engine would have played, and why that mattered, in words rather than centipawns. Scrub through the evaluation graph, jump straight to the critical moments, and step through the line the engine wanted on the board. Puzzles Tactics puzzles sorted by rating and theme, with no daily limit. Ask for forks, pins, back rank mates or rook endgames, or let the app choose. The board is made for solving: drag pieces with your thumb, hear them land, and go straight to the next one. Daily challenge Everyone gets the same puzzles each day. Three lives, one attempt, and a streak to protect. Next move Set up any position and Stockfish shows the best move with its top three lines. The engine runs on your phone, so it works with no signal and the position never leaves the device. If the position is in a screenshot from another app or a website, the scanner reads the board off the picture for you. Made to look right Six board colours and ten piece sets, the walnut board by default. A real dark mode that you switch yourself. Move sounds and a soft haptic tick, each with its own switch.