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

Porat, Shay

ISR ISR·Born 1985·FIDE #2806258·246 Games

Classical2489246 Games

Rapid24990 Games

Blitz25530 Games

Statistics

246

Total

87

Wins

75

Draws

84

Losses

35%30%34%

Play Style

What you need to know before facing them

Plays 95.7% better with black

Very precise: only 0.0 blunders/game

Dominates 1.d4 ♔ (62% in 131 games)

Vulnerable to 1.e4 ♚ (only 37%)

Deep Analysis

Stockfish 18 · Classical games · 1 analyzed

Accuracy by phase

Opening98.0%

Middlegame95.1%

Endgame—

Clutch Factor

Performance under pressure

0%

Winning (+2 or more)85%

0 Games

Equal position96%

1 Games

Losing (-2 or more)85%

0 Games

Problematic Pieces

Which pieces cause most errors?

♗

0%

0 errors

♔

0%

0 errors

♞

0%

0 errors

♙

0%

0 errors

♕

0%

0 errors

♖

0%

0 errors

Critical Moment

When does the first serious error occur?

Move 30average

1-15

16-25

26-35

36-45

46+

Error Heatmap

Where do most errors occur?

Insufficient data

Recent Games

L

Germanovs, Georgijs2260

2nd 3-0 Thu 11th Dec 2025 · 11 Dec 2025

1-0

W

Altini, Nicola2360

2nd 3-0 Thu 11th Dec 2025 · 11 Dec 2025

1-0

W

Askarov, Bakhtiyar2293

2nd 3-0 Thu 11th Dec 2025 · 11 Dec 2025

1-0

L

Punin, Andrii2289

2nd 3-0 Thu 11th Dec 2025 · 11 Dec 2025

1-0

L

Dumbelovic, Novak2312

2nd 3-0 Thu 11th Dec 2025 · 11 Dec 2025

1-0

W

Khmelniker, Ilya2503

TCh-ISR 2015 · 1 May 2015

1-0

Openings

Based on player games

Weaknesses

EXPLOIT!

White

No significant weaknesses detected as White

Black

French: Tarrasch

70.0%

10 Games·Loses

1.e4 e6 2.d4 d5 3.Nd2

Sicilian: d6 Systems

56.5%

23 Games·Loses

1.e4 c5 2.Nf3 d6

Strengths

AVOID

White

Catalan

60.0%

15 Games·Wins

1.d4 Nf6 2.c4 e6 3.g3

Black

No consistent strengths detected as Black

Critical Blunders

Tactical errors analyzed with Stockfish

No blunders recorded

Repertoire

☰ All

♟ Classical

⚡ Rapid

🔥 Blitz

PRO

·

2025

2015

2013

2012

2011

2010

PRO

8

7

6

5

4

3

2

1a

b

c

d

e

f

g

h

Starting Position

134 Games

47%28%25%

Move	Games	Performance	%
1.d4	131		62%
1.Nf3 Weak	2		0%
1.e4	1		50%

1.d4

62%

131

1.Nf3

0%

2

1.e4

50%

1

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