Hracek, Zbynek

CZE CZE·Born 1970·FIDE #300071·2,879 Games

Classical25252,766 Games

Rapid255966 Games

Blitz253447 Games

Play against Hracek, Zbynek's Twin

PRO

Uses their openings, level & style

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

Ready to play

2879 games analyzed

Statistics

Total

2879

Wins

973

Draws

1534

Losses

372

34%53%13%

Play Style

What you need to know before facing them

Elite accuracy: 94.8% average

Solid conversion: 83%

Very consistent (92%)

Very precise: only 0.0 blunders/game

Dominates 1.g3 ♚ (70% in 15 games)

Deep Analysis

Stockfish 18 · Classical games · 361 analyzed

Accuracy by phase

Opening

97.1%

Middlegame

94.8%

Endgame

95.8%

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

+5%

Winning (+2 or more)

95%94g

Equal position

96%214g

Losing (-2 or more)

90%53g

Performance under pressure

Problematic Pieces — Which pieces cause most errors?

23%

29 errors

21%

26 errors

19%

24 errors

14%

17 errors

14%

18 errors

11 errors

Critical Moment — When does the first serious error occur?

Move 35 average

44%

56%

1-15

16-25

26-35

36-45

46+

56% of blunders occur between move 36-45. Keep tension until that moment.

Error Heatmap — Where do most errors occur?

Few

Many

Errors mapped

Hotspot zone

c4 / d6

Critical squares

6 err

5 err

c4/d6 concentrate most errors. Force decisions in those zones.

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

Petroff: Steinitz Attack — 1.e4 e5 2.Nf3 Nf6 3.d415 Games · last played 4 years ago

White56.3%Wins

King's Indian: Main Line — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O16 Games · last played 12 years ago

Black54.5%Wins

Sicilian: Kan — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a611 Games · last played 4 months ago

Critical Blunders

10 errors · Stockfish

#71Ne6??Endgamevs LaurusasOTB · 2025

#42Ke4??Endgamevs GloserOTB · 2024

#35Kh6??Tacticsvs HorvathOTB · 2023

#55c7??Endgamevs LivaicOTB · 2023

#19dxc4??Tacticsvs PolakOTB · 2023

#17Qd6??Tacticsvs PolakOTB · 2022

#40Qd3??Tacticsvs UrazayevOTB · 2022

#41Rc1+??Endgamevs SasikiranOTB · 2022

#27exd5??Tacticsvs PetenyiOTB · 2020

#40Kf8??Tacticsvs StocekOTB · 2020

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Endgame Statistics

PRO23 endgame categories analyzed

Endgame Statistics

Reveal weaknesses →

23 endgame categories analyzed — discover where they collapse under pressure

Repertoire

Move arrowsmost-played moves

Starting Position

Stockfish

1441 Games

38%52%10%

Move	Games	%
1.e4	1058	64%
1.d4	254	64%
1.c4	93	62%
1.Nf3	36	65%

MoveGamesPerformance%

1.e4

1058

64%

1.d4

254

64%

1.c4

62%

1.Nf3

65%