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

Iljiushenok, Ilia

FID FID·Born 1993·FIDE #24105074·1,995 Games

Classical25031,312 Games

Rapid2451403 Games

Blitz2452280 Games

Statistics

1995

Total

879

Wins

637

Draws

479

Losses

44%32%24%

Play Style

What you need to know before facing them

Elite accuracy: 94.2% average

Solid conversion: 82%

Very consistent (91%)

Very precise: only 0.0 blunders/game

Dominates 1.d4 ♔ (67% in 167 games)

Deep Analysis

Stockfish 18 · Classical games · 493 analyzed

Accuracy by phase

Opening96.7%

Middlegame93.6%

Endgame95.1%

Clutch Factor

Performance under pressure

+5%

Winning (+2 or more)95%

198 Games

Equal position95%

216 Games

Losing (-2 or more)90%

79 Games

Problematic Pieces

Which pieces cause most errors?

♖

28%

78 errors

♕

18%

51 errors

♗

15%

41 errors

♙

15%

43 errors

♔

12%

34 errors

♞

12%

33 errors

Critical Moment

When does the first serious error occur?

Move 38average

1-15

16-25

26-35

36-45

46+

53% of blunders occur between move 26-35. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

10

9

7

7

9

9

7

14

8

8

abcdefgh

Many

Few

Critical squares

e314 err

f810 err

d59 err

f59 err

f79 err

e3/f8 concentrate most errors. Force decisions in those zones.

Recent Games

W

Shankland, Sam2647

Titled Tue 26th May 2026 · 26 May 2026

1-0

W

Galaktionov, Artem2346

Titled Tue 26th May 2026 · 26 May 2026

1-0

W

Rodriguez Polo, Mateo2196

Titled Tue 26th May 2026 · 26 May 2026

0-1

W

Klukin, Kirill2414

Titled Tue 26th May 2026 · 26 May 2026

1-0

W

Devaev, Alexander2306

Titled Tue 26th May 2026 · 26 May 2026

0-1

W

Schnaider, Ilan2431

Titled Tue 26th May 2026 · 26 May 2026

0-1

Openings

Based on player games

Weaknesses

EXPLOIT!

White

French: Classical

45.5%

11 Games·Loses

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

Scotch: Classical

41.7%

12 Games·Loses

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5

Black

Nimzo-Indian: Classical

66.7%

9 GamesLow sample·Loses

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2

Slav: Semi-Slav

63.6%

11 Games·Loses

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3

Strengths

AVOID

White

Sicilian: Closed

85.7%

21 Games·Wins

1.e4 c5 2.Nc3 Nc6

English: Four Knights

66.7%

15 Games·Wins

1.c4 e5 2.Nc3 Nf6

Black

Caro-Kann: Main Line

90.9%

11 Games·Wins

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

Sicilian: d6 Systems

46.6%

58 Games·Wins

1.e4 c5 2.Nf3 d6

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#26Rxa7??

Tactics

vs Triapishko

OTB·2025

▶

#39Ra6??

Endgame

vs Triapishko

OTB·2025

▶

#26Re2??

Tactics

vs Shubin

Blitz·2025

▶

#22Bd7??

Tactics

vs Triapishko

Blitz·2025

▶

#77Kf7??

Endgame

vs Novozhilov

Blitz·2025

▶

#34Qd1??

Tactics

vs Zakhartsov

Rapid·2025

▶

#22Kd1??

Tactics

vs Khubukshanov

Rapid·2025

▶

#35Kb2??

Tactics

vs Davudov

OTB·2025

▶

#23Rd7??

Tactics

vs Kotelva

OTB·2025

▶

#47h3??

Endgame

vs Gilfanov

OTB·2025

Endgame Statistics

23 endgame categories analyzed — discover where they collapse under pressure

Repertoire

☰ All

♟ Classical

⚡ Rapid

🔥 Blitz

PRO

·

2026

2025

2024

2023

2022

2021

PRO

8

7

6

5

4

3

2

1a

b

c

d

e

f

g

h

Starting Position

982 Games

48%32%20%

Move	Games	Performance	%
1.e4	686		63%
1.d4	167		67%
1.c4	96		65%
1.Nf3	31		66%
1.b3	1		50%
1.g4 Weak	1		0%

1.e4

63%

686

1.d4

67%

167

1.c4

65%

96

1.Nf3

66%

31

1.b3

50%

1

1.g4

0%

1

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