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

Dragun, Kamil

POL POL·Born 1995·FIDE #1134167·2,006 Games

Classical25121,818 Games

Rapid2542118 Games

Blitz255170 Games

Statistics

2006

Total

927

Wins

655

Draws

423

Losses

46%33%21%

Play Style

What you need to know before facing them

Elite accuracy: 93.8% average

High resilience (56%): Dangerous even when losing

Solid conversion: 84%

Very consistent (89%)

Very precise: only 0.1 blunders/game

Dominates 1.c4 ♔ (72% in 36 games)

Deep Analysis

Stockfish 18 · Classical games · 329 analyzed

Accuracy by phase

Opening96.6%

Middlegame93.8%

Endgame95.6%

Clutch Factor

Performance under pressure

+6%

Winning (+2 or more)95%

127 Games

Equal position95%

149 Games

Losing (-2 or more)89%

53 Games

Problematic Pieces

Which pieces cause most errors?

♖

24%

50 errors

♕

20%

43 errors

♔

17%

35 errors

♙

14%

30 errors

♗

13%

28 errors

♞

12%

25 errors

Critical Moment

When does the first serious error occur?

Move 38average

1-15

16-25

26-35

36-45

46+

44% of blunders occur between move 26-35. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

6

10

11

6

9

6

8

6

7

8

abcdefgh

Many

Few

Critical squares

d511 err

c510 err

f59 err

d38 err

d48 err

d5/c5 concentrate most errors. Force decisions in those zones.

Recent Games

L

Mitrabha, Guha2507

Titled Tue 24th Dec Early · 24 Dec 2024

0-1

W

Gubajdullin, Alexei2238

Titled Tue 24th Dec Early · 24 Dec 2024

1-0

W

Goltseva, Ekaterina2383

Titled Tue 24th Dec Early · 24 Dec 2024

0-1

W

Lorenzo De La Riva, Lazaro2415

Titled Tue 24th Dec Early · 24 Dec 2024

0-1

W

Mihajlovskij, Sergei2312

Titled Tue 24th Dec Early · 24 Dec 2024

1-0

W

Cuellar Montes, Alejandro2190

Titled Tue 24th Dec Early · 24 Dec 2024

1-0

Openings

Based on player games

Weaknesses

EXPLOIT!

White

French: Classical

44.4%

9 GamesLow sample·Loses

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

Black

No significant weaknesses detected as Black

Strengths

AVOID

White

Ruy Lopez: Closed

78.3%

23 Games·Wins

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

Ruy Lopez: Morphy

71.7%

46 Games·Wins

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

Black

Sicilian: d6 Systems

51.3%

193 Games·Wins

1.e4 c5 2.Nf3 d6

Sicilian: e6 Systems

60.6%

66 Games·Wins

1.e4 c5 2.Nf3 e6

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#47Qb6??

Endgame

vs Dreev

OTB·2024

▶

#54Kd4??

Endgame

vs Dreev

OTB·2024

▶

#34g6??

Tactics

vs Sheehan

OTB·2024

▶

#57Kg6??

Endgame

vs Ponomariov

OTB·2024

▶

#64e5+??

Endgame

vs Raczek

Rapid·2023

▶

#56Rf4??

Endgame

vs Stachowiak

OTB·2023

▶

#57Kd3??

Endgame

vs Kozak

OTB·2023

▶

#28Kc2??

Tactics

vs Pacan-Milej

OTB·2023

▶

#27Nb3??

Tactics

vs Oparin

OTB·2023

▶

#27Qxg6??

Tactics

vs Gazik

Rapid·2023

Endgame Statistics

23 endgame categories analyzed — discover where they collapse under pressure

Repertoire

☰ All

♟ Classical

⚡ Rapid

🔥 Blitz

PRO

·

2024

2023

2022

2021

2020

2019

PRO

8

7

6

5

4

3

2

1a

b

c

d

e

f

g

h

Starting Position

1020 Games

50%31%19%

Move	Games	Performance	%
1.e4	473		65%
1.d4	421		66%
1.Nf3	90		67%
1.c4 Strong	36		72%

1.e4

65%

473

1.d4

66%

421

1.Nf3

67%

90

1.c4

72%

36

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