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

IM

Asgarizadeh, Ahmad

IRI IRI·Born 1998·FIDE #12505684·401 Games

Classical2452401 Games

Rapid24190 Games

Blitz23750 Games

Statistics

401

Total

170

Wins

103

Draws

128

Losses

42%26%32%

Play Style

What you need to know before facing them

Elite accuracy: 94.5% average

Very consistent (94%)

Very precise: only 0.0 blunders/game

Dominates 1.d4 ♚ (62% in 67 games)

Vulnerable to 1.c4 ♚ (only 33%)

Deep Analysis

Stockfish 18 · Classical games · 29 analyzed

Accuracy by phase

Opening97.0%

Middlegame94.8%

Endgame95.1%

Clutch Factor

Performance under pressure

+3%

Winning (+2 or more)95%

13 Games

Equal position96%

11 Games

Losing (-2 or more)92%

5 Games

Problematic Pieces

Which pieces cause most errors?

♙

30%

3 errors

♖

30%

3 errors

♞

20%

2 errors

♕

20%

2 errors

♗

0%

0 errors

♔

0%

0 errors

Critical Moment

When does the first serious error occur?

Move 47average

1-15

16-25

26-35

36-45

46+

100% of blunders occur between move 46+. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

1

1

1

1

1

1

1

1

1

1

abcdefgh

Many

Few

Critical squares

b71 err

b81 err

c31 err

c51 err

d41 err

b7/b8 concentrate most errors. Force decisions in those zones.

Recent Games

L

Liu, Casper2278

Titled Tue 5th Sep Late · 5 Sept 2023

1-0

W

Gracia Alvarez, Gerardo Antonio2222

Titled Tue 20th Sep Early · 20 Sept 2022

1-0

W

Sadilek, Peter2327

Titled Tue 20th Sep Early · 20 Sept 2022

1-0

L

Aizpurua, Patrick Emilio2310

Titled Tue 20th Sep Early · 20 Sept 2022

1-0

L

Itgelt, Khuyagtsogt2184

Titled Tue 20th Sep Early · 20 Sept 2022

0-1

W

Bilan, Danila2303

Titled Tue 20th Sep Early · 20 Sept 2022

0-1

Openings

Based on player games

Weaknesses

EXPLOIT!

White

French: Winawer

50.0%

14 Games·Loses

1.e4 e6 2.d4 d5 3.Nc3 Bb4

Black

Sicilian: e6 Systems

62.5%

16 Games·Loses

1.e4 c5 2.Nf3 e6

Strengths

AVOID

White

Sicilian: Kan

81.8%

11 Games·Wins

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6

Black

Italian: Giuoco Piano

54.5%

11 Games·Wins

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5

Queen's Gambit Accepted

50.0%

22 Games·Wins

1.d4 d5 2.c4 dxc4

Critical Blunders

Tactical errors analyzed with Stockfish

1 errors

▶

#47Rg2??

Endgame

vs Kanmazalp

OTB·2019

Endgame Statistics

6 endgame categories analyzed — discover where they collapse under pressure

Repertoire

☰ All

♟ Classical

⚡ Rapid

🔥 Blitz

PRO

·

2023

2022

2021

2020

2019

2018

PRO

8

7

6

5

4

3

2

1a

b

c

d

e

f

g

h

Starting Position

196 Games

43%30%27%

Move	Games	Performance	%
1.e4	194		59%
1.Nf3 Weak	1		0%
1.c4	1		50%

1.e4

59%

194

1.Nf3

0%

1

1.c4

50%

1

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