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

Pichot, Alan

ESP ESP·Born 1998·FIDE #110973·4,545 Games

Classical25813,898 Games

Rapid2597294 Games

Blitz2608446 Games

Statistics

4545

Total

2405

Wins

975

Draws

1163

Losses

53%21%26%

Play Style

What you need to know before facing them

Elite accuracy: 93.2% average

Solid conversion: 92%

Very consistent (88%)

Very precise: only 0.1 blunders/game

Dominates 1.c4 ♔ (84% in 54 games)

Vulnerable to 1.b3 ♚ (only 47%)

Deep Analysis

Stockfish 18 · Classical games · 811 analyzed

Accuracy by phase

Opening96.8%

Middlegame93.4%

Endgame94.4%

Clutch Factor

Performance under pressure

+4%

Winning (+2 or more)94%

234 Games

Equal position95%

167 Games

Losing (-2 or more)90%

99 Games

Problematic Pieces

Which pieces cause most errors?

♖

27%

107 errors

♕

19%

76 errors

♙

16%

65 errors

♞

14%

56 errors

♗

12%

49 errors

♔

12%

49 errors

Critical Moment

When does the first serious error occur?

Move 46average

1-15

16-25

26-35

36-45

46+

52% of blunders occur between move 46+. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

11

11

16

14

15

15

11

11

12

13

abcdefgh

Many

Few

Critical squares

f616 err

e515 err

f515 err

d514 err

e313 err

f6/e5 concentrate most errors. Force decisions in those zones.

Recent Games

W

Kilgus, Georg2344

TCh-AUT Rapid 2026 · 17 May 2026

1-0

W

Krzyzanowski, Marcin2493

TCh-AUT Rapid 2026 · 17 May 2026

1-0

D

Dardha, Daniel2602

TCh-AUT Rapid 2026 · 17 May 2026

½-½

D

Cieslak, Patryk2494

TCh-AUT Rapid 2026 · 17 May 2026

½-½

W

Jarocka, Liwia2288

TCh-AUT Rapid 2026 · 17 May 2026

1-0

W

Matthias, Thorsten2034

TCh-AUT Rapid 2026 · 17 May 2026

0-1

Openings

Based on player games

Weaknesses

EXPLOIT!

White

No significant weaknesses detected as White

Black

Reti: KIA

64.3%

14 Games·Loses

1.Nf3 d5 2.g3 Nf6

Queen's Gambit Accepted

55.6%

9 GamesLow sample·Loses

1.d4 d5 2.c4 dxc4

Strengths

AVOID

White

Sicilian: d6 Systems

57.8%

353 Games·Wins

1.e4 c5 2.Nf3 d6

Sicilian: Sveshnikov

72.7%

22 Games·Wins

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5

Black

Sicilian: e6 Systems

50.0%

260 Games·Wins

1.e4 c5 2.Nf3 e6

Sicilian: d6 Systems

65.0%

100 Games·Wins

1.e4 c5 2.Nf3 d6

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#35Ne3??

Tactics

vs Ansat

Blitz·2025

▶

#69Kb3??

Endgame

vs Bharath Subramaniyam H

Blitz·2025

▶

#41Qxc6??

Endgame

vs Maksimovic

Blitz·2025

▶

#31Qb7??

Tactics

vs Karthik V

Rapid·2025

▶

#40c2??

Tactics

vs Andreikin

Rapid·2025

▶

#28cxd4??

Tactics

vs Sindarov

Blitz·2025

▶

#71Ra4??

Endgame

vs Gukesh D

Blitz·2025

▶

#33Qg4??

Tactics

vs Andreikin

OTB·2025

▶

#27Qxb7??

Tactics

vs Martirosyan

OTB·2025

▶

#40Kd8??

Tactics

vs Tabatabaei

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

2282 Games

58%21%21%

Move	Games	Performance	%
1.e4	2067		67%
1.d4 Strong	88		82%
1.Nf3 Strong	69		75%
1.c4 Strong	54		84%
1.b3 Weak	2		25%
1.g3 Weak	1		0%
1.e3 Strong	1		100%

1.e4

67%

2067

1.d4

82%

88

1.Nf3

75%

69

1.c4

84%

54

1.b3

25%

2

1.g3

0%

1

1.e3

100%

1

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