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

D

IM

Delgado Ramos, Hector

CUB CUB·Born 1985·FIDE #3504824·211 Games

Classical2447211 Games

Rapid24180 Games

Blitz24530 Games

Play against Delgado Ramos, Hector's Twin

PRO

Uses their openings, level & style

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

Ready to play

211 games analyzed

Statistics

Total

211

Wins

102

Draws

73

Losses

36

48%35%17%

Deep Analysis

Stockfish 18 · Classical games · 0 analyzed

Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?

Insufficient data

Problematic Pieces — Which pieces cause most errors?

Insufficient data

Critical Moment — When does the first serious error occur?

Insufficient data

Error Heatmap — Where do most errors occur?

Insufficient data

Openings

Based on player games

Weaknesses

— exploit these lines

No significant weaknesses detected as White

No significant weaknesses detected as Black

Strengths

— avoid these lines

White60.0%Wins

Sicilian: 2...Nc6 — 1.e4 c5 2.Nf3 Nc610 Games · last played 15 years ago

Black52.9%Wins

Sicilian: Dragon — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g617 Games · last played 15 years ago

Critical Blunders

Tactical errors analyzed with Stockfish

No blunders recorded

Recent Games

211 Games

L

Alvarez Pedraza, Aramis(2471)

Chess Rumble 2017 · 4 Nov 2017

1-0

D

Leon Archibaldo, Orlando Andres(2183)

Chess Rumble 2017 · 4 Nov 2017

½-½

W

Ordonez Gonzalez, Gabriel(1876)

Chess Rumble 2017 · 4 Nov 2017

0-1

L

Bruzon Batista, Lazaro(2661)

Chess Rumble 2017 · 4 Nov 2017

1-0

W

Silva, Henrique Brasil Barrientos(2486)

Chess Rumble 2017 · 4 Nov 2017

1-0

W

Chaluja Garcia Prieto, Jose Antonio(1829)

Chess Rumble 2017 · 4 Nov 2017

1-0

Repertoire

8

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6

5

4

3

2

1a

b

c

d

e

f

g

h

Move arrowsmost-played moves

Starting Position

Stockfish

103 Games

54%35%11%

Move	Games	Performance	%
1.e4 Strong	53		77%
1.d4	45		67%
1.Nf3	3		67%
1.c4 Weak	1		0%
1.a3 Strong	1		100%

MoveGamesPerformance%

1.e4Strong

53

77%

1.d4

45

67%

1.Nf3

3

67%

1.c4Weak

1

0%

1.a3Strong

1

100%

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