Scouting report: Jerzy Slaby (IM, POL)

613 over-the-board games in the Chess Stalker database (601 classical, 12 rapid): 46% wins, 23% draws, 31% losses. FIDE rating 2451 standard, 2431 rapid, 2443 blitz. 15 games analyzed with Stockfish: 90% accuracy, 0.13 blunders per game.

  • Opening repertoire of Jerzy Slaby as White and Black, with results per line — free.
  • Weaknesses and blunder patterns, evaluated with Stockfish — free.
  • Recent over-the-board games and endgame statistics.
  • Twin Bot: a sparring bot that imitates Jerzy Slaby's style so you can rehearse the matchup — free online.

Full report: https://chessstalker.com/fide/1121405 — no account needed.

Chess Stalker

Jerzy Slaby

IM

Polandborn 1983FIDE ID 1121405

Rating & statistics

FIDE rating lists · Sep 2023 – Sep 2026
2400
2440
2480
2469 · Sep 2023
Oct
2024
Apr
Jul
Oct
2025
Apr
Jul
Oct
2026
Apr
Jul
Oct
Sep 2023Oct 2026
2451
2443
2431
2493peak, Nov 2011
613games
279wins, 46%
142draws, 23%
192losses, 31%

Play style

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.e4 as ♔ (58% in 238 games)
Vulnerable to 1.c4 ♚ (only 48%)

Play against Slaby's Twin

Their real openings, level & style

Based on 613 games

Openings

613 games

Weaknesses

where they slip as ♔ White
French: Classical1.e4 e6 2.d4 d5 3.♞c3 ♞f6only 9 games, last played 3 months ago66.7%losses
Alekhine Defense1.e4 ♞f6 2.e5 ♞d5only 8 games, last played 2 years ago50.0%losses

Strengths

what holds up for them as ♔ White
Ruy Lopez: Morphy1.e4 e5 2.♞f3 ♞c6 3.♝b5 a622 games, last played last year63.6%wins
Sicilian: e6 Systems1.e4 c5 2.♞f3 e624 games, last played 2 years ago58.3%wins

Deep analysis

Stockfish · Classical · 15 analyzed
Accuracy by phase
Opening
95.4%
Middlegame
91.8%
Endgame
93.6%
Clutch factor
+2%
Winning (+2)
93%
Equal
87%
Losing (−2)
91%
Problematic pieces
35%
8 err
22%
5 err
17%
4 err
13%
3 err
9%
2 err
4%
1 err
Critical moment
Move 25 avg
0%
1-15
50%
16-25
50%
26-35
0%
36-45
0%
46+
50% of blunders occur after move 16-25. Keep tension until then.
Error heatmap · Critical squares
2
2
2
2
2
2
Few
Many
a5
2
d5
2
e6
2
f1
2
h2
2
a5/d5 concentrate most errors. Force decisions in those zones.

Critical blunders

8 errors
#28
f4?? vs Seemann
Middlegame · OTB · 2026
#28
exd5?? vs Kantans
Middlegame · OTB · 2026
#32
h3?? vs Bluebaum
Endgame · OTB · 2025
#33
♜f2?? vs McLachlan
Endgame · Rapid · 2025
#34
♜xc8?? vs Verbytski
Endgame · Rapid · 2025
#21
♛a1+?? vs Liu
Middlegame · Rapid · 2025

Recent games

Mis, Mieszko(2391)

TCh-POL Ekstraliga 2026 · 24 Jun 2026

0–1
Seemann, Jakub(2548)

TCh-POL Ekstraliga 2026 · 23 Jun 2026

1–0
Szpar, Milosz(2499)

TCh-POL Ekstraliga 2026 · 20 Jun 2026

0–1
Raczek, Krzysztof(2487)

TCh-POL Ekstraliga 2026 · 19 Jun 2026

0–1
Kantans, Toms(2571)

TCh-POL Ekstraliga 2026 · 16 Jun 2026

0–1
Durarbayli, Vasif(2612)

Titled Tue 18th Mar Early · 18 Mar 2025

0–1

Endgame statistics

Repertoire

PRO
613 games in scope
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
305 games50%W19%D31%L
Move
1. e4
2383m
51%1435%
58%
1. ♞f3
332y
36%42%22
58%
1. d4
183m
50%39%
69%
1. c4
1113y
64%27%
77%
1. g3
51y
80%20
90%

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