Chess Stalker — Free Chess Opponent Analysis

Analyze any Lichess, Chess.com or FIDE player's openings, weaknesses, blunder patterns and psychological profile. Train against a Twin Bot that replicates your opponent's style. Search by username or FIDE ID across 11 million+ games. Free to use, no signup required.

What you get

Opponent weakness analysis — opening repertoire, common blunders, time pressure patterns
Twin Bot — practice against an AI clone of your opponent's exact playing style
FIDE OTB database — 11 million+ tournament games and 1.7 million+ rated players
Stockfish-powered analysis with depth-25 evaluations
Multi-platform: Lichess, Chess.com, and FIDE in one place
Head-to-head comparison, Nemesis detection, Stalker Score

How it works

Search any Lichess, Chess.com username or FIDE player
Get instant scouting report with weaknesses and patterns
Prepare your strategy and practice against the Twin Bot

S

IM

Shtanchaev, Abdul

RUS RUS·Born 1975·FIDE #4124340·1 Games

Classical25001 Games

Rapid24870 Games

Blitz—0 Games

Play against Shtanchaev, Abdul's Twin

PRO

Uses their openings, level & style

Practice against a bot that uses their real openings and playing style

Ready to play

1 games analyzed

Statistics

Total

1

Wins

0

Draws

1

Losses

0

0%100%0%

Deep Analysis

Stockfish 18 · Classical games · 0 analyzed

Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?

Insufficient data

Problematic Pieces — Which pieces cause most errors?

Insufficient data

Critical Moment — When does the first serious error occur?

Insufficient data

Error Heatmap — Where do most errors occur?

Insufficient data

Openings

Based on player games

No clear weaknesses!

Critical Blunders

Tactical errors analyzed with Stockfish

No blunders recorded

Recent Games

1 Games

D

Kholmov, Ratmir D(2465)

5. stage Russia Cup, Ekat...

½-½

Repertoire

8

7

6

5

4

3

2

1a

b

c

d

e

f

g

h

Move arrowsmost-played moves

Starting Position

Stockfish

0 Games

0%0%0%

Select a move

🍪 Cookies · Chess Stalker uses technical cookies (required for operation) and analytical cookies (to improve the service). Analytical cookies are optional.