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

GM

Gurevich, Ilya

USA USA·Born 1972·FIDE #2000628·411 Games

Classical2586397 Games

Rapid25596 Games

Blitz25718 Games

Statistics

411

Total

182

Wins

121

Draws

108

Losses

44%29%26%

Play Style

What you need to know before facing them

Elite accuracy: 92.0% average

Very consistent (91%)

Very precise: only 0.0 blunders/game

Dominates 1.e4 ♔ (63% in 193 games)

Vulnerable to 1.Nf3 ♚ (only 39%)

Deep Analysis

Stockfish 18 · Classical games · 17 analyzed

Accuracy by phase

Opening95.8%

Middlegame93.5%

Endgame94.0%

Clutch Factor

Performance under pressure

+6%

Winning (+2 or more)96%

2 Games

Equal position94%

6 Games

Losing (-2 or more)90%

9 Games

Problematic Pieces

Which pieces cause most errors?

♙

27%

11 errors

♖

24%

10 errors

♞

22%

9 errors

♔

17%

7 errors

♗

7%

3 errors

♕

2%

1 errors

Critical Moment

When does the first serious error occur?

Move 30average

1-15

16-25

26-35

36-45

46+

Error Heatmap

Where do most errors occur?

4

2

2

2

2

1

2

2

2

1

abcdefgh

Many

Few

Critical squares

c74 err

a62 err

b52 err

b62 err

c32 err

c7/a6 concentrate most errors. Force decisions in those zones.

Recent Games

W

Fromm, Marius2444

FIDE World Bl Team Pool C · 14 Jun 2025

1-0

W

Momunaliev, Ruslan2214

FIDE World Bl Team Pool C · 14 Jun 2025

0-1

L

Tan, Justin2512

FIDE World Bl Team Pool C · 14 Jun 2025

1-0

L

Keymer, Vincent2730

FIDE World Bl Team Pool C · 14 Jun 2025

1-0

L

Pichot, Alan2588

FIDE World Bl Team Pool C · 14 Jun 2025

0-1

W

Kogan, Arthur2475

FIDE World Bl Team Pool C · 14 Jun 2025

1-0

Openings

Based on player games

Weaknesses

EXPLOIT!

White

No significant weaknesses detected as White

Black

Sicilian: Open

53.3%

15 Games·Loses

1.e4 c5 2.Nf3 d6 3.d4

Strengths

AVOID

White

Ruy Lopez: Exchange

83.3%

12 Games·Wins

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

Sicilian: e6 Systems

72.7%

11 Games·Wins

1.e4 c5 2.Nf3 e6

Black

Sicilian: e6 Systems

60.9%

46 Games·Wins

1.e4 c5 2.Nf3 e6

Critical Blunders

Tactical errors analyzed with Stockfish

2 errors

▶

#32c4c3??

Endgame

vs Kasparov

OTB·1998

▶

#35Rd2??

Tactics

vs Kramnik

OTB·1991

Endgame Statistics

10 endgame categories analyzed — discover where they collapse under pressure

Repertoire

☰ All

♟ Classical

⚡ Rapid

🔥 Blitz

PRO

·

2025

1999

1998

1994

1992

1991

PRO

8

7

6

5

4

3

2

1a

b

c

d

e

f

g

h

Starting Position

200 Games

48%32%20%

Move	Games	Performance	%
1.e4	193		63%
1.Nf3 Strong	4		75%
1.d4	2		50%
1.c4 Strong	1		100%

1.e4

63%

193

1.Nf3

75%

4

1.d4

50%

2

1.c4

100%

1

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