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

Gavrilescu, David

ROU ROU·Born 2003·FIDE #1227190·2,052 Games

Classical25451,703 Games

Rapid2517224 Games

Blitz2504210 Games

Statistics

2052

Total

972

Wins

567

Draws

512

Losses

47%28%25%

Play Style

What you need to know before facing them

Elite accuracy: 93.9% average

Solid conversion: 86%

Very consistent (92%)

Very precise: only 0.0 blunders/game

Dominates 1.Nf3 ♔ (70% in 10 games)

Vulnerable to 1.c4 ♚ (only 44%)

Deep Analysis

Stockfish 18 · Classical games · 596 analyzed

Accuracy by phase

Opening96.7%

Middlegame93.5%

Endgame94.9%

Clutch Factor

Performance under pressure

+4%

Winning (+2 or more)95%

211 Games

Equal position95%

198 Games

Losing (-2 or more)90%

91 Games

Problematic Pieces

Which pieces cause most errors?

♖

22%

84 errors

♕

21%

82 errors

♙

19%

73 errors

♗

15%

57 errors

♔

13%

52 errors

♞

10%

40 errors

Critical Moment

When does the first serious error occur?

Move 47average

1-15

16-25

26-35

36-45

46+

33% of blunders occur between move 46+. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

10

12

12

15

15

11

10

11

10

12

abcdefgh

Many

Few

Critical squares

f515 err

g615 err

c612 err

d212 err

f612 err

f5/g6 concentrate most errors. Force decisions in those zones.

Recent Games

W

Padurariu, Mihai-Edward2219

Grand Prix Bucharest 2026 · 10 May 2026

0-1

D

Georgiev, Kiril2525

Grand Prix Bucharest 2026 · 10 May 2026

½-½

W

Istratescu, Andrei2369

Grand Prix Bucharest 2026 · 10 May 2026

1-0

L

Narayanan S L2569

Grand Prix Bucharest 2026 · 10 May 2026

0-1

L

Dimitrov, Radoslav2474

Grand Prix Bucharest 2026 · 10 May 2026

1-0

W

Serban, Cristian-Stefan2286

Grand Prix Bucharest 2026 · 10 May 2026

1-0

Openings

Based on player games

Weaknesses

EXPLOIT!

White

Ruy Lopez: Closed

50.0%

8 GamesLow sample·Loses

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

Black

No significant weaknesses detected as Black

Strengths

AVOID

White

French: Advance

75.4%

57 Games·Wins

1.e4 e6 2.d4 d5 3.e5

Caro-Kann: Advance

75.0%

16 Games·Wins

1.e4 c6 2.d4 d5 3.e5

Black

Queen's Gambit Declined

49.0%

143 Games·Wins

1.d4 d5 2.c4 e6

London System

57.1%

21 Games·Wins

1.d4 d5 2.Bf4 c5

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#35Rxd2+??

Tactics

vs Gharibyan

Blitz·2025

▶

#28g6+??

Tactics

vs Robson

Blitz·2025

▶

#26Ncxe5??

Tactics

vs Assylov

Blitz·2025

▶

#40Bf6??

Tactics

vs Suleimen

Blitz·2025

▶

#27d6??

Tactics

vs Ibrahimli

Blitz·2025

▶

#30Nd8??

Tactics

vs Niemann

Blitz·2025

▶

#24Nh7??

Tactics

vs Galaviz Medina

Rapid·2025

▶

#35Kh2??

Tactics

vs Averin

Blitz·2025

▶

#24Nxa2??

Tactics

vs Sindarov

Blitz·2025

▶

#59Rxg4+??

Endgame

vs Martirosyan

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

1053 Games

52%26%22%

Move	Games	Performance	%
1.e4	949		65%
1.d4	77		69%
1.Nf3	10		70%
1.c4	9		39%
1.Nc3	7		57%
1.e3 Strong	1		100%

1.e4

65%

949

1.d4

69%

77

1.Nf3

70%

10

1.c4

39%

9

1.Nc3

57%

7

1.e3

100%

1

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