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

IM

Demin, Vladimir

RUS RUS·Born 1987·FIDE #4167457·1,262 Games

Classical24301,254 Games

Rapid24290 Games

Blitz—8 Games

Statistics

1262

Total

548

Wins

153

Draws

561

Losses

43%12%44%

Deep Analysis

Stockfish 18 · Classical games · 0 analyzed

Clutch Factor

Performance under pressure

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

Recent Games

L

Vikas, Hema1856

Titled Tue 10th Jun Early · 10 Jun 2025

1-0

W

Sabarez, Iulian2023

Titled Tue 3rd Jun Early · 3 Jun 2025

0-1

L

Barseghyan, Armen Ar.2348

Titled Tue 3rd Jun Early · 3 Jun 2025

0-1

D

Antoniou, Rafail2134

Titled Tue 3rd Jun Early · 3 Jun 2025

½-½

L

So, Wesley2751

Titled Tue 3rd Jun Early · 3 Jun 2025

0-1

W

Terlouw, Wouter2227

Titled Tue 3rd Jun Early · 3 Jun 2025

0-1

Openings

Based on player games

Weaknesses

EXPLOIT!

White

Ruy Lopez: Exchange

53.8%

26 Games·Loses

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6

Caro-Kann: Advance

52.6%

38 Games·Loses

1.e4 c6 2.d4 d5 3.e5

Black

King's Indian

87.5%

8 GamesLow sample·Loses

1.d4 Nf6 2.c4 g6

Scotch Gambit

80.0%

10 Games·Loses

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4

Strengths

AVOID

White

No consistent strengths detected as White

Black

London System

73.3%

15 Games·Wins

1.d4 Nf6 2.Bf4 d5

Ruy Lopez: Open

53.3%

15 Games·Wins

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4

Critical Blunders

Tactical errors analyzed with Stockfish

No blunders recorded

Repertoire

☰ All

♟ Classical

⚡ Rapid

🔥 Blitz

PRO

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2025

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2020

PRO

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Starting Position

634 Games

45%13%42%

Move	Games	Performance	%
1.e4	331		48%
1.d4	298		54%
1.Nf3 Strong	4		75%
1.c4 Strong	1		100%

1.e4

48%

331

1.d4

54%

298

1.Nf3

75%

4

1.c4

100%

1

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