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

Savinov, Viktor

UKR UKR·Born 1966·FIDE #14105403·31 Games

Classical250731 Games

Rapid—0 Games

Blitz—0 Games

Play against Savinov, Viktor's Twin

PRO

Uses their openings, level & style

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

Ready to play

31 games analyzed

Statistics

Total

31

Wins

9

Draws

7

Losses

15

29%23%48%

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

31 Games

L

Rada, Hannes(2473)

FICGS__CHESS__CLASS_GM__0... · 6 Sept 2007

1-0

L

Shwimmer,Peter(2484)

FICGS__CHESS__CLASS_GM__0... · 6 Sept 2007

1-0

L

Brunsteins, Daniel(2479)

FICGS__CHESS__CLASS_GM__0... · 6 Sept 2007

0-1

L

de Vassal,Thibault(2495)

FICGS__CHESS__CLASS_GM__0... · 6 Sept 2007

0-1

L

Aigner, Michael(2070)

FICGS__CHESS__CLASS_GM__0... · 6 Sept 2007

0-1

L

Ingersol, Harry(2489)

FICGS__CHESS__CLASS_GM__0... · 6 Sept 2007

1-0

Repertoire

8

7

6

5

4

3

2

1a

b

c

d

e

f

g

h

Move arrowsmost-played moves

Starting Position

Stockfish

16 Games

31%25%44%

Move	Games	Performance	%
1.e4	12		58%
1.d4 Weak	3		0%
1.Nf3 Weak	1		0%

MoveGamesPerformance%

1.e4

12

58%

1.d4Weak

3

0%

1.Nf3Weak

1

0%

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