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

Nakhapetiane, Pogos

RUS RUS·Born 1989·FIDE #4166728·272 Games

Classical2494264 Games

Rapid24878 Games

Blitz25170 Games

Statistics

272

Total

131

Wins

70

Draws

71

Losses

48%26%26%

Play Style

What you need to know before facing them

Plays 23.6% better with black

Inconsistent (58%): Can have off days

Dominates 1.e4 ♔ (68% in 134 games)

Vulnerable to 1.Nf3 ♚ (only 42%)

Deep Analysis

Stockfish 18 · Classical games · 11 analyzed

Accuracy by phase

Opening94.5%

Middlegame90.0%

Endgame89.7%

Clutch Factor

Performance under pressure

-1%

Winning (+2 or more)82%

6 Games

Equal position43%

1 Games

Losing (-2 or more)83%

4 Games

Problematic Pieces

Which pieces cause most errors?

♕

28%

13 errors

♙

23%

11 errors

♔

15%

7 errors

♞

15%

7 errors

♖

15%

7 errors

♗

4%

2 errors

Critical Moment

When does the first serious error occur?

Move 40average

1-15

16-25

26-35

36-45

46+

43% of blunders occur between move 36-45. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

2

2

2

4

4

2

2

2

2

2

abcdefgh

Many

Few

Critical squares

d54 err

f54 err

a52 err

c42 err

d32 err

d5/f5 concentrate most errors. Force decisions in those zones.

Recent Games

W

Guliev, Gasan2123

Titled Tue 30th Dec 2025 · 30 Dec 2025

1-0

L

Venskaya, Nika1936

Titled Tue 30th Dec 2025 · 30 Dec 2025

1-0

W

Deichmann, Esteban Horacio2349

Titled Tue 30th Dec 2025 · 30 Dec 2025

0-1

L

Sarana, Alexey2673

Titled Tue 30th Dec 2025 · 30 Dec 2025

1-0

W

Ozates, Tuna2202

Titled Tue 30th Dec 2025 · 30 Dec 2025

1-0

L

Hansen, Eric2609

Titled Tue 30th Dec 2025 · 30 Dec 2025

1-0

Openings

Based on player games

Weaknesses

EXPLOIT!

White

No significant weaknesses detected as White

Black

No significant weaknesses detected as Black

Strengths

AVOID

White

Sicilian: d6 Systems

68.0%

25 Games·Wins

1.e4 c5 2.Nf3 d6

Caro-Kann: Main Line

60.0%

10 Games·Wins

1.e4 c6 2.d4 d5 3.Nc3 dxe4

Black

Sicilian: 2...Nc6

53.3%

15 Games·Wins

1.e4 c5 2.Nf3 Nc6

French: Tarrasch

50.0%

12 Games·Wins

1.e4 e6 2.d4 d5 3.Nd2

Critical Blunders

Tactical errors analyzed with Stockfish

8 errors

▶

#48b4??

Endgame

vs Pranav V

OTB·2025

▶

#42Ra4??

Endgame

vs Terry

OTB·2025

▶

#25Rd3??

Tactics

vs Hansen

OTB·2025

▶

#55h7??

Endgame

vs Dubnevych

OTB·2025

▶

#54Kb3??

Endgame

vs Kleimenov

OTB·2025

▶

#34Bxc5??

Tactics

vs Papasimakopoulos

OTB·2025

▶

#29Re8??

Tactics

vs Taher

OTB·2025

▶

#55Kf7+??

Endgame

vs Ronka

OTB·2025

Endgame Statistics

12 endgame categories analyzed — discover where they collapse under pressure

Repertoire

☰ All

♟ Classical

⚡ Rapid

🔥 Blitz

PRO

·

2025

2012

2011

2010

2008

2007

PRO

8

7

6

5

4

3

2

1a

b

c

d

e

f

g

h

Starting Position

136 Games

55%25%20%

Move	Games	Performance	%
1.e4	134		68%
1.c4 Strong	1		100%
1.Nf3	1		50%

1.e4

68%

134

1.c4

100%

1

1.Nf3

50%

1

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