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

Le, Quang Liem

TOP 50

VIE VIE·Born 1991·FIDE #12401137·4,568 Games

Classical27313,422 Games

Rapid2636576 Games

Blitz2683702 Games

Statistics

4568

Total

2282

Wins

1400

Draws

885

Losses

50%31%19%

Play Style

What you need to know before facing them

Elite accuracy: 93.9% average

Very consistent (90%)

Very precise: only 0.1 blunders/game

Dominates 1.g3 ♔ (80% in 23 games)

Deep Analysis

Stockfish 18 · Classical games · 690 analyzed

Accuracy by phase

Opening96.9%

Middlegame94.0%

Endgame95.5%

Clutch Factor

Performance under pressure

+5%

Winning (+2 or more)95%

179 Games

Equal position96%

231 Games

Losing (-2 or more)90%

90 Games

Problematic Pieces

Which pieces cause most errors?

♖

30%

108 errors

♙

16%

57 errors

♗

15%

55 errors

♕

15%

54 errors

♔

13%

46 errors

♞

12%

44 errors

Critical Moment

When does the first serious error occur?

Move 42average

1-15

16-25

26-35

36-45

46+

39% of blunders occur between move 46+. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

12

10

11

12

12

14

10

12

11

9

abcdefgh

Many

Few

Critical squares

e514 err

d512 err

e712 err

f312 err

g612 err

e5/d5 concentrate most errors. Force decisions in those zones.

Recent Games

D

Florescu, Codrut-Constantin2188

1st 3-0 Thu 21st May 2026 · 21 May 2026

½-½

D

Negrean, Andrei2353

1st 3-0 Thu 21st May 2026 · 21 May 2026

½-½

W

Aslanov, Umid2359

1st 3-0 Thu 21st May 2026 · 21 May 2026

1-0

W

Jasinski, Alexander2157

1st 3-0 Thu 21st May 2026 · 21 May 2026

0-1

W

Brown, Akeem2060

1st 3-0 Thu 21st May 2026 · 21 May 2026

0-1

D

Mischuk, Dmitry2298

1st 3-0 Thu 21st May 2026 · 21 May 2026

½-½

Openings

Based on player games

Weaknesses

EXPLOIT!

White

Reti: Double Fianchetto

46.2%

13 Games·Loses

1.Nf3 Nf6 2.g3 g6

Black

Reti: Gambit

55.6%

9 GamesLow sample·Loses

1.Nf3 d5 2.c4 e6

Strengths

AVOID

White

Reti vs King's Indian

76.3%

80 Games·Wins

1.Nf3 Nf6 2.c4 g6

Caro-Kann: Advance

71.4%

14 Games·Wins

1.e4 c6 2.d4 d5 3.e5

Black

Sicilian: d6 Systems

52.5%

202 Games·Wins

1.e4 c5 2.Nf3 d6

Sicilian: Sveshnikov

68.8%

16 Games·Wins

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#73Ke3??

Endgame

vs Zemlyanskii

Blitz·2025

▶

#121Bc1??

Endgame

vs Samunenkov

Blitz·2025

▶

#25Rg6??

Tactics

vs Hovhannisyan

Blitz·2025

▶

#27Rxa4??

Tactics

vs Nguyen

Blitz·2025

▶

#27Be4??

Tactics

vs Kosakowski

Blitz·2025

▶

#32Bxd5+??

Tactics

vs Yakubboev

Blitz·2025

▶

#15Rf4??

Tactics

vs Ahmad

Rapid·2025

▶

#48Nh4??

Endgame

vs Mamedyarov

Blitz·2025

▶

#50Rc5+??

Endgame

vs Donchenko

OTB·2025

▶

#41Kg3??

Endgame

vs Oparin

Blitz·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

2316 Games

54%30%16%

Move	Games	Performance	%
1.d4	1215		67%
1.Nf3 Strong	651		73%
1.e4	236		69%
1.c4	188		65%
1.g3 Strong	23		80%
1.b3 Strong	2		100%
1.f4 Strong	1		100%

1.d4

67%

1215

1.Nf3

73%

651

1.e4

69%

236

1.c4

65%

188

1.g3

80%

23

1.b3

100%

2

1.f4

100%

1

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