Load any game by chess.com or Lichess username, or paste a PGN or Lichess game link, and See The Mate runs it through Stockfish 18 at configurable depth. You get a full evaluation graph, a best-move suggestion for every position, and a classification for each move you played — all for free, with no daily limit. Once analysis finishes you can step through the game move by move, hover the evaluation graph to jump to any point in the game, and see exactly where an advantage was won or thrown away.
Depth is adjustable, typically between 10 and 20 ply depending on your device. Deeper analysis takes longer but finds more accurate best moves, especially in sharp tactical positions.
Yes. Paste any PGN directly into the analyze box and it will be parsed and evaluated the same way as an imported game.
Raw centipawn scores swing wildly in decisive positions, which makes a linear graph hard to read. See The Mate compresses large advantages with a tanh curve, the same approach used by chess.com, so close games and won games are both easy to read at a glance.
A move is classified as a blunder when it causes a large drop in evaluation compared to the engine’s best move — typically a swing of 200+ centipawns, or one that turns a winning or equal position into a losing one.
It is measured in pawns of material advantage. +1.0 means White is roughly one pawn ahead in the engine’s judgement, while a number like +5.0 or higher usually means a decisive, likely winning advantage. A score like #3 means forced checkmate in three moves rather than a material count.
It depends on game length and depth setting, but a typical 40-move game finishes in well under a minute on a modern laptop or phone, since the whole engine runs locally rather than waiting in a server queue.
Yes. Analyze detects the opening played from the move sequence and shows its name, the same opening classification data used by Explore mode.