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

Tabatabaei, M. Amin

IRI IRI·Born 2001·FIDE #12521213·3,518 Games

Classical27142,976 Games

Rapid2593321 Games

Blitz2586264 Games

Statistics

3518

Total

1886

Wins

843

Draws

784

Losses

54%24%22%

Play Style

What you need to know before facing them

Elite accuracy: 94.8% average

Solid conversion: 85%

Very consistent (92%)

Very precise: only 0.0 blunders/game

Dominates 1.b3 ♔ (75% in 30 games)

Deep Analysis

Stockfish 18 · Classical games · 156 analyzed

Accuracy by phase

Opening96.9%

Middlegame94.4%

Endgame95.5%

Clutch Factor

Performance under pressure

+4%

Winning (+2 or more)96%

66 Games

Equal position96%

63 Games

Losing (-2 or more)91%

27 Games

Problematic Pieces

Which pieces cause most errors?

♖

19%

18 errors

♞

18%

17 errors

♕

18%

17 errors

♔

17%

16 errors

♗

15%

14 errors

♙

15%

14 errors

Critical Moment

When does the first serious error occur?

Move 57average

1-15

16-25

26-35

36-45

46+

60% of blunders occur between move 46+. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

5

3

3

5

4

5

7

5

4

4

abcdefgh

Many

Few

Critical squares

f57 err

c75 err

g55 err

g65 err

h75 err

f5/c7 concentrate most errors. Force decisions in those zones.

Recent Games

L

Le Tuan Minh (VIE)2585

Titled Tue 19th May 2026 · 19 May 2026

0-1

W

Nguyen, Ngoc Truong Son2600

Titled Tue 19th May 2026 · 19 May 2026

0-1

W

Samimi, Armin2157

Titled Tue 19th May 2026 · 19 May 2026

1-0

W

Roebers, Eline2389

Titled Tue 19th May 2026 · 19 May 2026

0-1

L

Tari, Aryan2641

Titled Tue 19th May 2026 · 19 May 2026

1-0

W

Puzyrevsky, Semyon2364

Titled Tue 19th May 2026 · 19 May 2026

1-0

Openings

Based on player games

Weaknesses

EXPLOIT!

White

No significant weaknesses detected as White

Black

No significant weaknesses detected as Black

Strengths

AVOID

White

Reti: KIA

83.3%

12 Games·Wins

1.Nf3 d5 2.g3 Nf6

Italian: Two Knights

69.6%

56 Games·Wins

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6

Black

Sicilian: d6 Systems

56.5%

184 Games·Wins

1.e4 c5 2.Nf3 d6

Sicilian: e6 Systems

62.5%

24 Games·Wins

1.e4 c5 2.Nf3 e6

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#32Rbg8??

Tactics

vs Erigaisi Arjun

Blitz·2025

▶

#47Ra6??

Endgame

vs Rapport

Blitz·2025

▶

#27Qc4??

Tactics

vs Gukesh D

Blitz·2025

▶

#41Rd1??

Endgame

vs Ahmad

Blitz·2025

▶

#51Be1??

Endgame

vs Suleymanli

Blitz·2025

▶

#37Rf8??

Tactics

vs Mamedov

Blitz·2025

▶

#65Rd7??

Endgame

vs Yakubboev

Blitz·2025

▶

#32Ne2??

Tactics

vs Fedoseev

Rapid·2025

▶

#25Re6??

Tactics

vs Kopylov

Blitz·2025

▶

#19Rf4??

Tactics

vs Peyrer

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

1771 Games

59%23%18%

Move	Games	Performance	%
1.d4	766		68%
1.e4 Strong	616		72%
1.c4	190		70%
1.Nf3 Strong	141		72%
1.b3 Strong	30		75%
1.a3 Strong	8		94%
1.g3	6		67%
1.Nc3	6		67%
1.a4 Weak	2		0%
1.b4 Weak	2		25%
1.d3 Strong	1		100%
1.e3 Strong	1		100%
1.h4 Strong	1		100%
1.g4 Strong	1		100%

1.d4

68%

766

1.e4

72%

616

1.c4

70%

190

1.Nf3

72%

141

1.b3

75%

30

1.a3

94%

8

1.g3

67%

6

1.Nc3

67%

6

1.a4

0%

2

1.b4

25%

2

1.d3

100%

1

1.e3

100%

1

1.h4

100%

1

1.g4

100%

1

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