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

Murariu, Andrei

ROU ROU·Born 1986·FIDE #1209272·838 Games

Classical2496818 Games

Rapid251110 Games

Blitz244810 Games

Statistics

838

Total

347

Wins

304

Draws

187

Losses

41%36%22%

Play Style

What you need to know before facing them

Elite accuracy: 93.3% average

Very consistent (88%)

Very precise: only 0.0 blunders/game

Dominates 1.e4 ♔ (63% in 426 games)

Deep Analysis

Stockfish 18 · Classical games · 15 analyzed

Accuracy by phase

Opening96.2%

Middlegame91.8%

Endgame94.3%

Clutch Factor

Performance under pressure

+6%

Winning (+2 or more)95%

4 Games

Equal position95%

6 Games

Losing (-2 or more)89%

5 Games

Problematic Pieces

Which pieces cause most errors?

♔

21%

4 errors

♞

21%

4 errors

♙

21%

4 errors

♗

16%

3 errors

♖

16%

3 errors

♕

5%

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?

1

1

3

1

1

2

1

1

1

1

abcdefgh

Many

Few

Critical squares

f53 err

g42 err

b41 err

d31 err

d71 err

f5/g4 concentrate most errors. Force decisions in those zones.

Recent Games

L

David, Alexandru1438

TCh-ROU Blitz 2022 · 4 Dec 2022

1-0

D

Ionescu,M2243

TCh-ROU Blitz 2022 · 4 Dec 2022

½-½

D

Nevednichy, Vladislav2502

TCh-ROU Blitz 2022 · 4 Dec 2022

½-½

D

Ionescu, Mihai2243

TCh-ROU Blitz 2022 · 4 Dec 2022

½-½

W

Badau, Iancu-Daniel1792

TCh-ROU Blitz 2022 · 4 Dec 2022

1-0

L

Ileana, George2343

TCh-ROU Blitz 2022 · 4 Dec 2022

0-1

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: Classical

70.0%

10 Games·Wins

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6

Petroff: Main Line

70.0%

10 Games·Wins

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6

Black

Sicilian: Classical

46.2%

78 Games·Wins

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6

Critical Blunders

Tactical errors analyzed with Stockfish

5 errors

▶

#35Bd3??

Tactics

vs Creanga

Blitz·2022

▶

#12Nb3??

Tactics

vs Ileana

Blitz·2022

▶

#19Bd2??

Tactics

vs Nagy-Elek

Blitz·2022

▶

#57Qb5+??

Endgame

vs Ionescu

Blitz·2022

▶

#37Nf4??

Tactics

vs Stroe

OTB·2019

Endgame Statistics

19 endgame categories analyzed — discover where they collapse under pressure

Repertoire

☰ All

♟ Classical

⚡ Rapid

🔥 Blitz

PRO

·

2022

2019

2018

2017

2016

2014

PRO

8

7

6

5

4

3

2

1a

b

c

d

e

f

g

h

Starting Position

429 Games

45%37%18%

Move	Games	Performance	%
1.e4	426		63%
1.Nf3	2		50%
1.d4 Strong	1		100%

1.e4

63%

426

1.Nf3

50%

2

1.d4

100%

1

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