Bernasek, Jan

CZE CZE·Born 1986·FIDE #311995·1,415 Games

Classical25011,361 Games

Rapid250522 Games

Blitz243032 Games

Statistics

1415

Total

624

Wins

496

Draws

293

Losses

44%35%21%

Play Style

What you need to know before facing them

Elite accuracy: 93.2% average

Solid conversion: 91%

Very consistent (91%)

Very precise: only 0.1 blunders/game

Dominates 1.e4 ♔ (71% in 62 games)

Deep Analysis

Stockfish 18 · Classical games · 131 analyzed

Accuracy by phase

Opening96.1%

Middlegame92.9%

Endgame94.7%

Clutch Factor

Performance under pressure

+5%

Winning (+2 or more)94%

57 Games

Equal position95%

48 Games

Losing (-2 or more)89%

26 Games

Problematic Pieces

Which pieces cause most errors?

♕

26%

29 errors

♖

21%

24 errors

♙

19%

22 errors

♗

14%

16 errors

♞

13%

15 errors

♔

7 errors

Critical Moment

When does the first serious error occur?

Move 49average

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?

abcdefgh

Many

Few

Critical squares

c47 err

f47 err

g56 err

b55 err

d44 err

c4/f4 concentrate most errors. Force decisions in those zones.

Recent Games

Havelka, Josef2341

TCh-CZE Extraliga 2025-26 · 29 Mar 2026

1-0

Ragger, Markus2560

Å¡achy.cz Extraliga 2025-... · 28 Mar 2026

1-0

Samunenkov, Ihor2598

Round 9: Bernasek, Jan - ... · 27 Mar 2026

0-1

Stehno, Pavel2306

TCh-CZE 1 Liga Zapad · 22 Mar 2026

1-0

Burdalev, Kirill2313

TCh-CZE 1 Liga Zapad · 1 Mar 2026

0-1

Hracek, Zbynek2546

šachy.cz Extraliga 2025-2... · 22 Feb 2026

½-½

Openings

Based on player games

Weaknesses

EXPLOIT!

White

Italian: Two Knights

44.4%

9 GamesLow sample·Loses

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

Black

No significant weaknesses detected as Black

Strengths

AVOID

White

Slav: Semi-Slav

60.0%

20 Games·Wins

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3

Queen's Gambit Declined

56.4%

55 Games·Wins

1.d4 d5 2.c4 e6

Black

Sicilian: Taimanov

50.0%

14 Games·Wins

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

Ruy Lopez: Morphy

45.5%

11 Games·Wins

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

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#28Nfd8??

Tactics

vs Rydl

OTB·2026

▶

#57Na5+??

Endgame

vs Stocek

OTB·2026

▶

#38Qc5??

Tactics

vs Ludvik

OTB·2025

▶

#40Qb7??

Tactics

vs Nemec

OTB·2025

▶

#29Rxg5+??

Tactics

vs Paulus

OTB·2025

▶

#48Bxc6??

Endgame

vs Bures

Blitz·2024

▶

#33a5??

Tactics

vs Kusa

Blitz·2024

▶

#32Qb8+??

Tactics

vs Babula

Blitz·2024

▶

#30Qc4+??

Tactics

vs Havelka

OTB·2024

▶

#56Kc4??

Endgame

vs Nguyen

OTB·2024

Endgame Statistics

22 endgame categories analyzed — discover where they collapse under pressure

Repertoire

☰ All

♟ Classical

⚡ Rapid

🔥 Blitz

PRO

2026

2025

2024

2023

2022

2021

PRO

Starting Position

705 Games

53%32%15%

Move	Games	%
1.d4	585	68%
1.e4 Strong	62	71%
1.Nf3	30	70%
1.c4	23	67%
1.b3 Strong	2	75%
1.e3 Strong	1	100%
1.f4 Strong	1	100%
1.d3	1	50%

1.d4

68%

585

1.e4

71%

1.Nf3

70%

1.c4

67%

1.b3

75%

1.e3

100%

1.f4

100%

1.d3

50%

Bernasek, Jan

Play against Bernasek, Jan's Twin

Statistics

Play Style

Deep Analysis

Clutch Factor

Problematic Pieces

Critical Moment

Error Heatmap

Recent Games

Openings

Weaknesses

Italian: Two Knights

Strengths

Slav: Semi-Slav

Queen's Gambit Declined

Sicilian: Taimanov

Ruy Lopez: Morphy

Critical Blunders