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

Vetoshko, Volodymyr

UKR UKR·Born 1998·FIDE #14122480·1,371 Games

Classical25041,236 Games

Rapid245878 Games

Blitz246357 Games

Statistics

1371

Total

617

Wins

453

Draws

301

Losses

45%33%22%

Play Style

What you need to know before facing them

Elite accuracy: 94.2% average

High resilience (59%): Dangerous even when losing

Solid conversion: 88%

Very consistent (90%)

Very precise: only 0.1 blunders/game

Dominates 1.d4 ♔ (71% in 127 games)

Deep Analysis

Stockfish 18 · Classical games · 318 analyzed

Accuracy by phase

Opening96.6%

Middlegame94.1%

Endgame95.4%

Clutch Factor

Performance under pressure

+6%

Winning (+2 or more)95%

145 Games

Equal position95%

129 Games

Losing (-2 or more)89%

44 Games

Problematic Pieces

Which pieces cause most errors?

♞

22%

37 errors

♖

22%

36 errors

♙

18%

30 errors

♕

15%

25 errors

♗

12%

20 errors

♔

11%

18 errors

Critical Moment

When does the first serious error occur?

Move 41average

1-15

16-25

26-35

36-45

46+

39% of blunders occur between move 46+. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

8

5

5

8

6

5

5

7

5

5

abcdefgh

Many

Few

Critical squares

d58 err

e78 err

g47 err

e56 err

d65 err

d5/e7 concentrate most errors. Force decisions in those zones.

Recent Games

L

Taher, Yoseph Theolifus2451

Titled Tue 7th Apr 2026 · 7 Apr 2026

1-0

D

Guzikov, Danil2142

Titled Tue 7th Apr 2026 · 7 Apr 2026

½-½

L

So, Wesley2754

Titled Tue 7th Apr 2026 · 7 Apr 2026

0-1

W

Tomb, Maroun2090

Titled Tue 7th Apr 2026 · 7 Apr 2026

0-1

W

Punin, Andrii2289

Titled Tue 7th Apr 2026 · 7 Apr 2026

1-0

W

Zeliantsova, Kseniya2176

Titled Tue 7th Apr 2026 · 7 Apr 2026

0-1

Openings

Based on player games

Weaknesses

EXPLOIT!

White

Caro-Kann: Exchange

43.8%

16 Games·Loses

1.e4 c6 2.d4 d5 3.exd5

Black

No significant weaknesses detected as Black

Strengths

AVOID

White

King's Indian: Classical

90.9%

11 Games·Wins

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2

Queen's Gambit Declined

66.7%

18 Games·Wins

1.d4 d5 2.c4 e6

Black

Sicilian: e6 Systems

56.0%

100 Games·Wins

1.e4 c5 2.Nf3 e6

Italian Game

46.2%

13 Games·Wins

1.e4 e5 2.Nf3 Nc6 3.Bc4

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#56b4??

Endgame

vs Pankiv

Rapid·2025

▶

#43Qc3??

Endgame

vs Nie

OTB·2025

▶

#52Rd3??

Endgame

vs Hamitevici

OTB·2025

▶

#18Nb5??

Tactics

vs Teclaf

OTB·2025

▶

#51h4??

Endgame

vs Rudolf

OTB·2025

▶

#38Ke5??

Tactics

vs Gloeckler

OTB·2025

▶

#39Qc2+??

Tactics

vs Michalczak

OTB·2025

▶

#17Rh3??

Tactics

vs Fishchuk

Rapid·2024

▶

#17Qf4??

Tactics

vs Shevchenko

Rapid·2024

▶

#22f6??

Tactics

vs Oleksiyenko

Blitz·2024

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

682 Games

51%30%19%

Move	Games	Performance	%
1.e4	452		65%
1.d4 Strong	127		71%
1.b3	43		65%
1.c4	38		61%
1.Nf3	22		66%

1.e4

65%

452

1.d4

71%

127

1.b3

65%

43

1.c4

61%

38

1.Nf3

66%

22

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