Scouting report: Jacek Gdanski (GM, POL)

1,644 over-the-board games in the Chess Stalker database (1,459 classical, 86 rapid, 99 blitz): 38% wins, 39% draws, 23% losses. FIDE rating 2478 standard, 2324 rapid, 2298 blitz. 183 games analyzed with Stockfish: 91% accuracy, 0.16 blunders per game.

  • Opening repertoire of Jacek Gdanski 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 Jacek Gdanski's style so you can rehearse the matchup — free online.

Full report: https://chessstalker.com/fide/1100106 — no account needed.

Chess Stalker

Jacek Gdanski

GM

Polandborn 1970FIDE ID 1100106

Rating & statistics

FIDE rating lists · Sep 2023 – Sep 2026
2250
2350
2450
2550
2484 · Sep 2023
Oct
2024
Apr
Jul
Oct
2025
Apr
Jul
Oct
2026
Apr
Jul
Oct
Sep 2023Oct 2026
2478
2324
2298
2546peak, Jul 2004
1,644games
632wins, 38%
642draws, 39%
370losses, 23%

Play style

before facing them
Elite accuracy: 91.3% average
Very consistent (83%)
Very precise: only 0.2 blunders/game
Dominates 1.e4 as ♔ (62% in 744 games)
Vulnerable to 1.Nf3 ♚ (only 47%)

Play against Gdanski's Twin

Their real openings, level & style

Based on 1,644 games

Openings

1,644 games

Weaknesses

where they slip as ♔ White
Sicilian: Classical1.e4 c5 2.♞f3 d6 3.d4 cxd4 4.♞xd4 ♞f6 5.♞c3 ♞c615 games, last played 18 years ago46.7%losses

Strengths

what holds up for them as ♔ White
Sicilian: Closed1.e4 c5 2.♞c3 ♞c680 games, last played last year55.0%wins
Petroff Defense1.e4 e5 2.♞f3 ♞f610 games, last played 3 years ago60.0%wins

Deep analysis

Stockfish · Classical · 183 analyzed
Accuracy by phase
Opening
95.8%
Middlegame
91.9%
Endgame
93.8%
Clutch factor
+6%
Winning (+2)
93%
Equal
93%
Losing (−2)
86%
Problematic pieces
23%
52 err
19%
43 err
19%
42 err
15%
33 err
13%
30 err
12%
27 err
Critical moment
Move 37 avg
5%
1-15
14%
16-25
33%
26-35
29%
36-45
19%
46+
33% of blunders occur after move 26-35. Keep tension until then.
Error heatmap · Critical squares
11
Few
Many
e5
11
c6
8
d5
8
f4
8
b3
7
e5/c6 concentrate most errors. Force decisions in those zones.

Critical blunders

10 errors
#14
hxg6?? vs Hamitevici
Middlegame · OTB · 2025
#29
♞e5?? vs Leniart
Middlegame · OTB · 2025
#30
♛xc7?? vs Sengupta
Endgame · OTB · 2025
#23
♛c8?? vs Rekuc
Middlegame · OTB · 2025
#14
h4?? vs Chmura
Middlegame · OTB · 2025
#22
♛xe5?? vs Frank
Middlegame · OTB · 2025

Recent games

Ostlund, Joar(2338)

Rond 3: Gdanski, Jacek - Ostlund... · 30 Nov 2025

0–1
Urkedal, Frode Olav Olsen(2570)

Rond 2: Urkedal, Frode Olav Olse... · 29 Nov 2025

0–1
Krasenkow, Michal(2502)

Jana Maciei Memorial 2025 · 7 Jul 2025

1–0
Leniart, Arkadiusz(2472)

Jana Maciei Memorial 2025 · 7 Jul 2025

0–1
Hamitevici, Vladimir(2427)

Jana Maciei Memorial 2025 · 7 Jul 2025

0–1
Rekuc, Patryk(2204)

Jana Maciei Memorial 2025 · 7 Jul 2025

1–0

Endgame statistics

Repertoire

PRO
1,644 games in scope
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
830 games43%W38%D19%L
Move
1. e4
74410m
44%37%19
62%
1. ♞f3
402y
38%55%
65%
1. c4
222y
41%45%14
64%
1. d4
204y
30%45%25%
53%
1. g3
320y
33%67%
17%
1. e3
19y
100%
100%

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