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

Salinas Herrera, Pablo

CHI CHI·Born 1994·FIDE #3407128·3,030 Games

Classical24542,822 Games

Rapid241965 Games

Blitz2529165 Games

Statistics

3030

Total

1698

Wins

423

Draws

910

Losses

56%14%30%

Play Style

What you need to know before facing them

Elite accuracy: 92.9% average

Solid conversion: 93%

Very consistent (89%)

Very precise: only 0.1 blunders/game

Dominates 1.d4 ♔ (73% in 703 games)

Deep Analysis

Stockfish 18 · Classical games · 456 analyzed

Accuracy by phase

Opening96.6%

Middlegame93.2%

Endgame94.4%

Clutch Factor

Performance under pressure

+5%

Winning (+2 or more)94%

256 Games

Equal position95%

103 Games

Losing (-2 or more)89%

97 Games

Problematic Pieces

Which pieces cause most errors?

♙

20%

93 errors

♕

19%

88 errors

♖

19%

91 errors

♞

15%

69 errors

♗

14%

67 errors

♔

13%

60 errors

Critical Moment

When does the first serious error occur?

Move 52average

1-15

16-25

26-35

36-45

46+

57% of blunders occur between move 46+. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

13

12

12

24

14

15

13

16

12

13

abcdefgh

Many

Few

Critical squares

e524 err

g416 err

d415 err

f514 err

e113 err

e5/g4 concentrate most errors. Force decisions in those zones.

Recent Games

D

Atakhan, Abtin2405

3rd 3-0 Thu 28th May 2026 · 28 May 2026

½-½

W

Arnold, Ken

3rd 3-0 Thu 28th May 2026 · 28 May 2026

1-0

D

Yoo, Christopher Woojin2607

3rd 3-0 Thu 28th May 2026 · 28 May 2026

½-½

W

Rohwer, Paul2020

3rd 3-0 Thu 28th May 2026 · 28 May 2026

1-0

D

Atwell, Rose2383

3rd 3-0 Thu 28th May 2026 · 28 May 2026

½-½

L

Taher, Yoseph Theolifus2451

3rd 3-0 Thu 28th May 2026 · 28 May 2026

0-1

Openings

Based on player games

Weaknesses

EXPLOIT!

White

Sicilian: Taimanov

50.0%

18 Games·Loses

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6

King's Indian

43.8%

16 Games·Loses

1.d4 Nf6 2.c4 g6

Black

Ruy Lopez: Morphy

52.5%

99 Games·Loses

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6

Ruy Lopez: Closed

57.9%

19 Games·Loses

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7

Strengths

AVOID

White

London System

81.5%

27 Games·Wins

1.d4 Nf6 2.Bf4 d5

Queen's Gambit Declined

75.0%

12 Games·Wins

1.d4 d5 2.c4 e6

Black

Sicilian: e6 Systems

60.8%

199 Games·Wins

1.e4 c5 2.Nf3 e6

King's Indian

70.6%

17 Games·Wins

1.d4 Nf6 2.c4 g6

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#19Bxc2??

Tactics

vs Marrujo Pardo

OTB·2026

▶

#57b5??

Endgame

vs Larino Nieto

OTB·2026

▶

#25Rg1??

Tactics

vs Harikrishna

Blitz·2025

▶

#28Ba3??

Tactics

vs Xiao

Blitz·2025

▶

#52Rxe5??

Endgame

vs Pranav V

Blitz·2025

▶

#58Qxb6??

Endgame

vs Martirosyan

Blitz·2025

▶

#53Bb5+??

Endgame

vs Ahmad

Blitz·2025

▶

#33Kf8??

Tactics

vs Maghsoodloo

Blitz·2025

▶

#76Nd8??

Endgame

vs Smirnov

Blitz·2025

▶

#33Rg4??

Tactics

vs Esipenko

Blitz·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

1506 Games

62%12%26%

Move	Games	Performance	%
1.d4 Strong	703		73%
1.e4	701		63%
1.Nf3	94		65%
1.c4 Weak	5		20%
1.Nc3 Strong	1		100%
1.g3 Weak	1		0%
1.b3 Weak	1		0%

1.d4

73%

703

1.e4

63%

701

1.Nf3

65%

94

1.c4

20%

5

1.Nc3

100%

1

1.g3

0%

1

1.b3

0%

1

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