Zilka, Stepan

CZE CZE·Born 1988·FIDE #315303·1,449 Games

Classical25261,256 Games

Rapid242883 Games

Blitz2462110 Games

Play against Zilka, Stepan's Twin

PRO

Uses their openings, level & style

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

Ready to play

1449 games analyzed

Statistics

Total

1449

Wins

620

Draws

562

Losses

265

43%39%18%

Play Style

What you need to know before facing them

Elite accuracy: 94.5% average

High resilience (59%): Dangerous even when losing

Solid conversion: 87%

Very consistent (92%)

Very precise: only 0.0 blunders/game

Dominates 1.c4 ♔ (71% in 19 games)

Deep Analysis

Stockfish 18 · Classical games · 323 analyzed

Accuracy by phase

Opening

96.9%

Middlegame

93.9%

Endgame

95.3%

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

+4%

Winning (+2 or more)

95%131g

Equal position

95%146g

Losing (-2 or more)

91%46g

Performance under pressure

Problematic Pieces — Which pieces cause most errors?

20%

40 errors

20%

40 errors

18%

35 errors

18%

35 errors

12%

23 errors

12%

23 errors

Critical Moment — When does the first serious error occur?

Move 44 average

11%

44%

22%

1-15

16-25

26-35

36-45

46+

44% of blunders occur between move 26-35. Keep tension until that moment.

Error Heatmap — Where do most errors occur?

Few

Many

Errors mapped

Hotspot zone

e2 / c5

Critical squares

8 err

7 err

e2/c5 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

White80.0%Wins

Italian: Giuoco Piano — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc510 Games · last played 5 months ago

White63.2%Wins

Caro-Kann — 1.e4 c6 2.Nf3 d519 Games

Black71.4%Wins

Sicilian: e6 Systems — 1.e4 c5 2.Nf3 e614 Games

Black60.0%Wins

Ruy Lopez: Exchange — 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc610 Games

Critical Blunders

10 errors · Stockfish

#39Bb7??Tacticsvs NavaraOTB · 2026

#35Rc8??Tacticsvs RubesBlitz · 2025

#28Qf4??Tacticsvs BrozkaBlitz · 2025

#39Kh7??Tacticsvs PulpanBlitz · 2025

#21Qe8??Tacticsvs DragnevOTB · 2025

#29Bxf8??Tacticsvs BouskaOTB · 2025

#27Ra6??Tacticsvs VykoukRapid · 2025

#35Nc5??Tacticsvs FinekOTB · 2025

#38Rg4??Tacticsvs BeerdsenOTB · 2025

#29Bxf2+??Tacticsvs ToczekOTB · 2024

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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

737 Games

48%36%16%

Move	Games	%
1.e4	357	66%
1.d4	333	68%
1.Nf3	24	52%
1.c4 Strong	19	71%
1.c3	2	50%
1.b3	2	50%

MoveGamesPerformance%

1.e4

357

66%

1.d4

333

68%

1.Nf3

52%

1.c4Strong

71%

1.c3

50%

1.b3

50%