Slaby, Jerzy

POL POL·Born 1983·FIDE #1121405·620 Games

Classical2451607 Games

Rapid243113 Games

Blitz24430 Games

Play against Slaby, Jerzy's Twin

PRO

Uses their openings, level & style

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

Ready to play

620 games analyzed

Statistics

Total

620

Wins

281

Draws

145

Losses

194

45%23%31%

Play Style

What you need to know before facing them

Elite accuracy: 90.3% average

Plays 6.3% better with black

High resilience (65%): Dangerous even when losing

Solid conversion: 87%

Very precise: only 0.1 blunders/game

Dominates 1.c4 ♔ (77% in 11 games)

Vulnerable to 1.c4 ♚ (only 48%)

Deep Analysis

Stockfish 18 · Classical games · 15 analyzed

Accuracy by phase

Opening

95.4%

Middlegame

91.8%

Endgame

93.6%

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

+2%

Winning (+2 or more)

93%6g

Equal position

87%6g

Losing (-2 or more)

91%3g

Performance under pressure

Problematic Pieces — Which pieces cause most errors?

35%

8 errors

22%

5 errors

17%

4 errors

13%

3 errors

2 errors

1 errors

Critical Moment — When does the first serious error occur?

Move 25 average

50%

1-15

16-25

26-35

36-45

46+

50% of blunders occur between move 16-25. Keep tension until that moment.

Error Heatmap — Where do most errors occur?

Few

Many

Errors mapped

Hotspot zone

a5 / d5

Critical squares

2 err

a5/d5 concentrate most errors. Force decisions in those zones.

Openings

Based on player games

Weaknesses

— exploit these lines

White66.7%Loses

French: Classical — 1.e4 e6 2.d4 d5 3.Nc3 Nf6

9 Games · Low samplePlay this line

Black61.5%Loses

Slav Defense — 1.d4 d5 2.c4 c6

13 GamesPlay this line

Strengths

— avoid these lines

White65.2%Wins

Ruy Lopez: Morphy — 1.e4 e5 2.Nf3 Nc6 3.Bb5 a623 Games

White58.3%Wins

Sicilian: e6 Systems — 1.e4 c5 2.Nf3 e624 Games

Black50.0%Wins

Caro-Kann: Exchange — 1.e4 c6 2.d4 d5 3.exd514 Games

Critical Blunders

Tactical errors analyzed with Stockfish

No blunders recorded

Recent Games

620 Games

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Endgame Statistics

PRO13 endgame categories analyzed

Endgame Statistics

Reveal weaknesses →

13 endgame categories analyzed — discover where they collapse under pressure

Repertoire

Move arrowsmost-played moves

Starting Position

Stockfish

308 Games

50%20%30%

Move	Games	%
1.e4	240	59%
1.Nf3	34	57%
1.d4	18	69%
1.c4 Strong	11	77%
1.g3 Strong	5	90%

MoveGamesPerformance%

1.e4

240

59%

1.Nf3

57%

1.d4

69%

1.c4Strong

77%

1.g3Strong

90%