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

Samunenkov, Ihor

UKR UKR·Born 2009·FIDE #14187086·3,016 Games

Classical25952,752 Games

Rapid2450138 Games

Blitz2540170 Games

Statistics

3016

Total

1616

Wins

575

Draws

822

Losses

54%19%27%

Play Style

What you need to know before facing them

Elite accuracy: 93.3% average

Very consistent (88%)

Very precise: only 0.1 blunders/game

Dominates 1.e4 ♔ (72% in 524 games)

Deep Analysis

Stockfish 18 · Classical games · 530 analyzed

Accuracy by phase

Opening96.8%

Middlegame93.5%

Endgame94.8%

Clutch Factor

Performance under pressure

+5%

Winning (+2 or more)94%

205 Games

Equal position94%

203 Games

Losing (-2 or more)89%

92 Games

Problematic Pieces

Which pieces cause most errors?

♙

20%

86 errors

♖

20%

88 errors

♕

19%

80 errors

♗

16%

69 errors

♞

13%

56 errors

♔

12%

51 errors

Critical Moment

When does the first serious error occur?

Move 42average

1-15

16-25

26-35

36-45

46+

43% of blunders occur between move 46+. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

12

10

13

11

10

10

17

13

11

20

abcdefgh

Many

Few

Critical squares

e420 err

e517 err

f613 err

g513 err

d712 err

e4/e5 concentrate most errors. Force decisions in those zones.

Recent Games

W

Gokerkan, Cem Kaan2507

Titled Tue 19th May 2026 · 19 May 2026

1-0

W

Bryakin, Mikhail2472

Titled Tue 19th May 2026 · 19 May 2026

0-1

W

Nguyen Tung Quan2197

Titled Tue 19th May 2026 · 19 May 2026

1-0

L

Shandrygin, Nikita2209

Titled Tue 19th May 2026 · 19 May 2026

1-0

L

Erigaisi Arjun2751

Titled Tue 19th May 2026 · 19 May 2026

0-1

W

Amin, Bassem2627

Titled Tue 19th May 2026 · 19 May 2026

1-0

Openings

Based on player games

Weaknesses

EXPLOIT!

White

Sicilian: Classical

45.5%

11 Games·Loses

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6

Black

Slav: Semi-Slav

72.7%

11 Games·Loses

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3

Reti: Double Fianchetto

66.7%

12 Games·Loses

1.Nf3 Nf6 2.g3 c5

Strengths

AVOID

White

Caro-Kann: Advance

74.3%

35 Games·Wins

1.e4 c6 2.d4 d5 3.e5

French: Tarrasch

72.0%

50 Games·Wins

1.e4 e6 2.d4 d5 3.Nd2

Black

Nimzo-Indian: Rubinstein

70.4%

27 Games·Wins

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3

Caro-Kann: Main Line

60.0%

50 Games·Wins

1.e4 c6 2.d4 d5 3.Nc3 dxe4

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#36Qb6??

Tactics

vs Le

Blitz·2025

▶

#62Ng2??

Endgame

vs Niemann

Blitz·2025

▶

#38Kg7??

Tactics

vs Pranav V

Blitz·2025

▶

#41Nxg1??

Endgame

vs Yilmaz

Rapid·2025

▶

#28Bh5??

Tactics

vs Puranik

Blitz·2025

▶

#22Rc2??

Tactics

vs Ganguly

Blitz·2025

▶

#24g4??

Tactics

vs Bortnyk

Blitz·2025

▶

#28Qd3??

Tactics

vs Kadric

Blitz·2025

▶

#24Bh6??

Tactics

vs Pechac

OTB·2025

▶

#55Nc6+??

Endgame

vs Andreikin

OTB·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

1494 Games

57%18%25%

Move	Games	Performance	%
1.d4	930		64%
1.e4 Strong	524		72%
1.Nf3	22		57%
1.b3 Strong	14		71%
1.c4 Strong	2		75%
1.f4 Weak	1		0%
1.Nc3 Strong	1		100%

1.d4

64%

930

1.e4

72%

524

1.Nf3

57%

22

1.b3

71%

14

1.c4

75%

2

1.f4

0%

1

1.Nc3

100%

1

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