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

Gutenev, Alexander

FID FID·Born 1990·FIDE #4195540·847 Games

Classical2455568 Games

Rapid2357150 Games

Blitz2339129 Games

Statistics

847

Total

350

Wins

257

Draws

240

Losses

41%30%28%

Play Style

What you need to know before facing them

Elite accuracy: 93.8% average

Very consistent (91%)

Very precise: only 0.1 blunders/game

Dominates 1.e4 ♔ (59% in 413 games)

Deep Analysis

Stockfish 18 · Classical games · 128 analyzed

Accuracy by phase

Opening96.5%

Middlegame92.6%

Endgame94.4%

Clutch Factor

Performance under pressure

+5%

Winning (+2 or more)95%

50 Games

Equal position95%

51 Games

Losing (-2 or more)90%

27 Games

Problematic Pieces

Which pieces cause most errors?

♖

23%

23 errors

♕

22%

22 errors

♙

20%

20 errors

♔

14%

14 errors

♗

11%

11 errors

♞

8%

8 errors

Critical Moment

When does the first serious error occur?

Move 48average

1-15

16-25

26-35

36-45

46+

50% of blunders occur between move 46+. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

4

4

3

4

3

6

4

3

3

3

abcdefgh

Many

Few

Critical squares

e56 err

b34 err

d74 err

e74 err

h64 err

e5/b3 concentrate most errors. Force decisions in those zones.

Recent Games

W

Demchenko, Yaroslav2201

Titled Tue 11th Mar Late · 11 Mar 2025

1-0

W

Urazayev, Arystanbek2467

Titled Tue 11th Mar Late · 11 Mar 2025

0-1

W

Rose,F2093

Titled Tue 11th Mar Late · 11 Mar 2025

0-1

L

Sadhwani, Raunak2664

Titled Tue 11th Mar Late · 11 Mar 2025

1-0

D

Zierk, Steven2501

Titled Tue 11th Mar Late · 11 Mar 2025

½-½

L

Yoo, Christopher Woojin2588

Titled Tue 11th Mar Late · 11 Mar 2025

0-1

Openings

Based on player games

Weaknesses

EXPLOIT!

White

Ruy Lopez: Closed

41.7%

36 Games·Loses

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7

Sicilian: Najdorf

40.7%

27 Games·Loses

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6

Black

No significant weaknesses detected as Black

Strengths

AVOID

White

Sicilian: Dragon

72.7%

11 Games·Wins

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6

French: Classical

60.0%

10 Games·Wins

1.e4 e6 2.d4 d5 3.Nc3 Nf6

Black

Reti: Double Fianchetto

50.0%

10 Games·Wins

1.Nf3 Nf6 2.g3 b6

Sicilian: Closed

48.0%

25 Games·Wins

1.e4 c5 2.Nc3 Nc6

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#22g5??

Tactics

vs Smirnov

Rapid·2023

▶

#35Bxf3??

Tactics

vs Matsenko

Rapid·2023

▶

#27d5??

Tactics

vs Remizov

Rapid·2023

▶

#20Kg2??

Tactics

vs Sokolov

Rapid·2023

▶

#36Nd2+??

Tactics

vs Nasyrova

Blitz·2023

▶

#17h3??

Tactics

vs Vlasov

Blitz·2023

▶

#10Nf6??

Tactics

vs Tarasenko

Blitz·2023

▶

#55Rb6+??

Endgame

vs Grebnev

Blitz·2023

▶

#64Kxh6??

Endgame

vs Diaz Camallonga

OTB·2023

▶

#23Ne4??

Tactics

vs Afanasiev

Blitz·2022

Endgame Statistics

23 endgame categories analyzed — discover where they collapse under pressure

Repertoire

☰ All

♟ Classical

⚡ Rapid

🔥 Blitz

PRO

·

2025

2024

2023

2022

2021

2020

PRO

8

7

6

5

4

3

2

1a

b

c

d

e

f

g

h

Starting Position

426 Games

44%30%26%

Move	Games	Performance	%
1.e4	413		59%
1.b3 Strong	6		83%
1.d4	5		50%
1.c4 Strong	1		100%
1.Nf3 Strong	1		100%

1.e4

59%

413

1.b3

83%

6

1.d4

50%

5

1.c4

100%

1

1.Nf3

100%

1

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