Beerdsen, Thomas

NED NED·Born 1998·FIDE #1030108·3,341 Games

Classical25193,214 Games

Rapid250452 Games

Blitz255299 Games

Statistics

3341

Total

1737

Wins

702

Draws

896

Losses

52%21%27%

Play Style

What you need to know before facing them

Elite accuracy: 93.5% average

High resilience (62%): Dangerous even when losing

Solid conversion: 90%

Very consistent (90%)

Very precise: only 0.1 blunders/game

Dominates 1.a4 ♔ (73% in 20 games)

Vulnerable to 1.c4 ♚ (only 44%)

Deep Analysis

Stockfish 18 · Classical games · 762 analyzed

Accuracy by phase

Opening96.2%

Middlegame93.5%

Endgame95.0%

Clutch Factor

Performance under pressure

+5%

Winning (+2 or more)95%

243 Games

Equal position95%

177 Games

Losing (-2 or more)90%

80 Games

Problematic Pieces

Which pieces cause most errors?

♕

22%

67 errors

♖

21%

65 errors

♙

18%

54 errors

♞

15%

47 errors

♔

12%

38 errors

♗

11%

34 errors

Critical Moment

When does the first serious error occur?

Move 35average

1-15

16-25

26-35

36-45

46+

29% of blunders occur between move 26-35. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

abcdefgh

Many

Few

Critical squares

f313 err

d411 err

f611 err

h611 err

e410 err

f3/d4 concentrate most errors. Force decisions in those zones.

Recent Games

Ngo, Quang Thai2359

18th BPB Limburg Open · 25 May 2026

0-1

Thorfinnsson, Bjorn2356

18th BPB Limburg Open · 25 May 2026

½-½

Ramien, David2206

18th BPB Limburg Open · 24 May 2026

0-1

Kurt, Sascha2325

18th BPB Limburg Open · 24 May 2026

½-½

Helmer,Jan2219

18th BPB Limburg Open · 23 May 2026

0-1

Kshirsagar,Pranav2146

18th BPB Limburg Open · 22 May 2026

½-½

Openings

Based on player games

Weaknesses

EXPLOIT!

White

French: Steinitz

44.4%

9 GamesLow sample·Loses

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5

Black

Sicilian: Closed

75.0%

8 GamesLow sample·Loses

1.e4 c5 2.Nc3 a6

Strengths

AVOID

White

Sicilian: d6 Systems

57.3%

255 Games·Wins

1.e4 c5 2.Nf3 d6

French: Classical

68.3%

60 Games·Wins

1.e4 e6 2.d4 d5 3.Nc3 Nf6

Black

Italian: Two Knights

69.6%

92 Games·Wins

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6

Ruy Lopez: Schliemann

66.7%

108 Games·Wins

1.e4 e5 2.Nf3 Nc6 3.Bb5 f5

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#23Qf6??

Tactics

vs Kunin

OTB·2026

▶

#44gxh3??

Endgame

vs Bosiocic

OTB·2025

▶

#35Qh1+??

Tactics

vs Nigmatov

OTB·2025

▶

#29Bb5??

Tactics

vs Badacsonyi

OTB·2025

▶

#33Qxe5??

Tactics

vs Badacsonyi

OTB·2025

▶

#35Kf2??

Tactics

vs Van Foreest

OTB·2025

▶

#32Nfe8??

Tactics

vs Van Foreest

OTB·2025

▶

#39Rxe1+??

Tactics

vs Warmerdam

Rapid·2025

▶

#36Ra3??

Endgame

vs Batsuren

OTB·2025

▶

#26Bxf7??

Tactics

vs Kacharava

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

Starting Position

1681 Games

56%20%24%

Move	Games	%
1.e4	1566	66%
1.d4	27	54%
1.g4	23	63%
1.c4	21	67%
1.a4 Strong	20	73%
1.Nf3	8	69%
1.h3 Strong	6	83%
1.b3	5	70%
1.Nc3	3	67%
1.a3 Strong	1	100%
1.g3 Strong	1	100%

1.e4

66%

1566

1.d4

54%

1.g4

63%

1.c4

67%

1.a4

73%

1.Nf3

69%

1.h3

83%

1.b3

70%

1.Nc3

67%

1.a3

100%

1.g3

100%

Beerdsen, Thomas

Play against Beerdsen, Thomas's Twin

Statistics

Play Style

Deep Analysis

Clutch Factor

Problematic Pieces

Critical Moment

Error Heatmap

Recent Games

Openings

Weaknesses

French: Steinitz

Sicilian: Closed

Strengths

Sicilian: d6 Systems

French: Classical

Italian: Two Knights

Ruy Lopez: Schliemann

Critical Blunders