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

K

IM

Kuzuev, Danil

RUS RUS·Born 1981·FIDE #4129245·217 Games

Classical2436217 Games

Rapid24190 Games

Blitz24080 Games

Play against Kuzuev, Danil's Twin

PRO

Uses their openings, level & style

Practice against a bot that uses their real openings and playing style

Ready to play

217 games analyzed

Statistics

Total

217

Wins

92

Draws

51

Losses

74

42%24%34%

Play Style

What you need to know before facing them

Very high accuracy: 88.6% average

Plays 3.8% better with white

Very consistent (91%)

Dominates 1.e4 ♔ (60% in 106 games)

Vulnerable to 1.Nf3 ♚ (only 42%)

Deep Analysis

Stockfish 18 · Classical games · 3 analyzed

Accuracy by phase

Opening

97.2%

Middlegame

86.4%

Endgame

88.5%

Clutch Factor

-2%

Winning (+2 or more)

85%0g

Equal position

91%1g

Losing (-2 or more)

87%2g

Performance under pressure

Problematic Pieces — Which pieces cause most errors?

32%

7 errors

27%

6 errors

18%

4 errors

9%

2 errors

9%

2 errors

5%

1 errors

Critical Moment — When does the first serious error occur?

Move 75 average

0%

0%

0%

50%

50%

1-15

16-25

26-35

36-45

46+

50% of blunders occur between move 36-45. Keep tension until that moment.

Error Heatmap — Where do most errors occur?

3

Few

Many

Errors mapped

17

Hotspot zone

h6 / c1

Critical squares

h6

3 err

c1

2 err

d7

2 err

d8

2 err

e3

2 err

h6/c1 concentrate most errors. Force decisions in those zones.

Openings

Based on player games

No clear weaknesses!

Critical Blunders

2 errors · Stockfish

#67d8=Q??Endgamevs FierOTB · 2025

#62Qc1+??Endgamevs MamedovOTB · 2025

Recent Games

217 Games

D

Sovetbekova, Nurai(1950)

Titled Tue 25th Mar Early · 25 Mar 2025

½-½

W

Tamono, Ruby(2173)

Titled Tue 25th Mar Early · 25 Mar 2025

1-0

W

Arun, Siddharth(1993)

Titled Tue 25th Mar Early · 25 Mar 2025

0-1

L

Janik, Igor(2527)

Titled Tue 25th Mar Early · 25 Mar 2025

1-0

D

Souleidis, Georgios(2418)

Titled Tue 25th Mar Early · 25 Mar 2025

½-½

L

Laddha, Shubh Jayesh(2303)

Titled Tue 25th Mar Early · 25 Mar 2025

1-0

Repertoire

8

7

6

5

4

3

2

1a

b

c

d

e

f

g

h

Move arrowsmost-played moves

Starting Position

Stockfish

106 Games

48%24%28%

Move	Games	Performance	%
1.e4	106		60%

MoveGamesPerformance%

1.e4

106

60%

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