Analyze anychess playerin seconds
Type a Chess.com, Lichess or FIDE username. You get their openings with win rates line by line, where they lose, and when they run out of clock.Type a Chess.com, Lichess or FIDE username.
You get their openings with win rates line by line, where they lose, and when they run out of clock.
Free, no signup
Free, no signup
Trusted by GM José Cubas (peak 2586) and other chess professionals
Sample player card
329,670
Online analyses
Chess.com and Lichess
77,695
FIDE analyses
Over-the-board players
13.4M+
OTB gamesOver-the-board games
Every FIDE-rated event, synced daily
1.9M+
FIDE players
Anyone with a FIDE ID, searchable by name
v3.1.10
How it works
Three steps to know your opponent better than they know themselves
Search
Search your rival
Enter any username from Lichess, Chess.com, or search FIDE by name
MagnusCarlsenEnter
Analyze
Get their chess stats
Their weak openings, tilt habits and time trouble, mined from thousands of games
Stockfish 19Maiaon every game
Win
Walk in with a plan
A scouting report with a game plan: what to play, what to avoid, when they crack
Play 1.e4, then the Sicilian Rossolimo
Force endgames, they convert 12%
Your preparation arsenal
Tools that change how you prepare
Stalker Score
One number from 0 to 100 for how predictable they are, built from four signals across their games.
Twin Bot
A bot built from their games, with the same openings and the same rating. Spar before the real thing.
How to beat
Where they lose and what holds up for them, opening by opening, with the exact lines.
Deep analysis
Stockfish 19 over every game: when they blunder, and the exact moves that cost them.
Also in every report
Tilt & Psychology
How often they lose right after a loss, how often they flag, and how they handle a bad streak.
Openings & traps
Their repertoire line by line with win rates, plus the traps they set and the ones they fall for.
Endgames
Every endgame by type and win rate, so you know which ones to steer into.
Nemesis
The players they can't beat and the ones they always beat, from real head-to-head records.
Legends
Scout 50+ historical greats the same way, from Morphy to Carlsen.
More on the way
A new tool or improvement lands every few weeks. See what's new
I built Chess Stalker because I kept losing to the same three players at my club.
So I went through their last games. They kept beating me with the same openings and the same tricks, every time. Once I saw the pattern, I knew where to hit them where they didn't expect it. Then I built the tool so you could do the same with anyone.
Chess Stalker PRO
Upgrade your arsenal
Free already analyzes anyone, as often as you like. PRO is for when a game really matters: who they can't beat, how they play endgames, and a bot that plays like them.
€4.17/mo
€49.99 billed once a year
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Feature
Free
PRO
Opponent analysisOpponent analysis · online & FIDEFullFull
Opening repertoireFull tree+ Study & filters+ Study mode & filters
Twin BotOnlineOnline + OTB
Nemesis & H2HNemesis & Head-to-Head
Endgame statsEndgame statistics
Chess legends
PGN downloadsUnlimited