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

Bagrationi, Alexander

ISR ISR·Born 1990·FIDE #14104954·643 Games

Classical2444625 Games

Rapid234515 Games

Blitz23223 Games

Statistics

643

Total

275

Wins

149

Draws

218

Losses

43%23%34%

Play Style

What you need to know before facing them

Elite accuracy: 92.5% average

Very consistent (84%)

Very precise: only 0.1 blunders/game

Dominates 1.c4 ♚ (69% in 16 games)

Vulnerable to 1.Nf3 ♚ (only 35%)

Deep Analysis

Stockfish 18 · Classical games · 126 analyzed

Accuracy by phase

Opening95.8%

Middlegame93.1%

Endgame94.5%

Clutch Factor

Performance under pressure

+5%

Winning (+2 or more)93%

51 Games

Equal position94%

47 Games

Losing (-2 or more)89%

28 Games

Problematic Pieces

Which pieces cause most errors?

♕

24%

28 errors

♗

22%

26 errors

♖

21%

25 errors

♙

19%

23 errors

♔

8%

10 errors

♞

5%

6 errors

Critical Moment

When does the first serious error occur?

Move 33average

1-15

16-25

26-35

36-45

46+

50% of blunders occur between move 26-35. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

4

4

4

4

5

4

6

5

4

4

abcdefgh

Many

Few

Critical squares

f36 err

d25 err

f45 err

c14 err

d34 err

f3/d2 concentrate most errors. Force decisions in those zones.

Recent Games

L

Esipenko, Andrey2684

Titled Tue 12th May 2026 · 12 May 2026

0-1

W

Wadsworth, Matthew J2529

Titled Tue 12th May 2026 · 12 May 2026

0-1

L

Weishaeutel, Moritz2393

Titled Tue 12th May 2026 · 12 May 2026

1-0

L

Laohawirapap, Prin2398

Titled Tue 12th May 2026 · 12 May 2026

1-0

D

Sathvik Adiga2400

Titled Tue 12th May 2026 · 12 May 2026

½-½

W

Grot, Blazej2325

Titled Tue 12th May 2026 · 12 May 2026

1-0

Openings

Based on player games

Weaknesses

EXPLOIT!

White

No significant weaknesses detected as White

Black

Petroff Defense

75.0%

8 GamesLow sample·Loses

1.e4 e5 2.Nf3 Nf6

Strengths

AVOID

White

No consistent strengths detected as White

Black

Sicilian: d6 Systems

50.0%

18 Games·Wins

1.e4 c5 2.Nf3 d6

Caro-Kann

50.0%

14 Games·Wins

1.e4 c6 2.d4 d5

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#31Nb1??

Tactics

vs Lymar

OTB·2025

▶

#31Rxe8+??

Tactics

vs Reichmann

OTB·2025

▶

#16O-O-O??

Tactics

vs Udelnov

OTB·2025

▶

#38d4??

Tactics

vs Stolwijk

OTB·2024

▶

#31h6??

Tactics

vs Menzel

OTB·2024

▶

#49f3??

Endgame

vs Lain

OTB·2024

▶

#15Bxh6??

Tactics

vs Hamburger

OTB·2024

▶

#54Qa6??

Endgame

vs Palchuk

OTB·2024

▶

#40Qd3??

Tactics

vs Ondozi

OTB·2024

▶

#58Kg7??

Endgame

vs Vandenbussche

Rapid·2023

Endgame Statistics

21 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

316 Games

46%24%30%

Move	Games	Performance	%
1.d4	184		57%
1.e4	125		59%
1.c4 Strong	4		75%
1.Nf3 Weak	2		25%
1.f4 Weak	1		0%

1.d4

57%

184

1.e4

59%

125

1.c4

75%

4

1.Nf3

25%

2

1.f4

0%

1

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