What is Oskar Wieczorek's FIDE rating?

Oskar Wieczorek's FIDE rating is 2495 standard, 2334 rapid, 2362 blitz. Chess Stalker tracks it together with Oskar Wieczorek's over-the-board games and opening repertoire.

How many OTB games has Oskar Wieczorek played?

The Chess Stalker database holds 2,163 over-the-board games by Oskar Wieczorek (1,929 classical, 135 rapid, 99 blitz), with 48% wins. The full list, with openings and results, is on Oskar Wieczorek's Chess Stalker profile.

How do I prepare against Oskar Wieczorek?

Open Oskar Wieczorek's free Chess Stalker report: opening repertoire with results per line as White and Black, recurring weaknesses and blunder patterns evaluated with Stockfish, and recent games. Then rehearse against the Twin Bot, which imitates Oskar Wieczorek's style, before facing them.

Oskar Wieczorek

Polandborn 1994FIDE ID 1133950

Rating & statistics

FIDE rating lists · Sep 2023 – Sep 2026

2300

2400

2500

2494 · Sep 2023

Oct

2024

Apr

Jul

Oct

2025

Apr

Jul

Oct

2026

Apr

Jul

Oct

Sep 2023Oct 2026

2495Classical

2362Blitz

2334Rapid

2512peak, May 2023

2,163games

1,039wins, 48%

452draws, 21%

671losses, 31%

Rated gamesInactive · rating frozenOfficial FIDE lists · drag the range below the chartPeak 2512 · May 2023

Play style

before facing themWhat you need to know before facing them

Elite accuracy: 92.5% average

Very consistent (89%)

Very precise: only 0.1 blunders/game

Dominates 1.Nf3 as

(76% in 44 games)

Play against Wieczorek's Twin

Their real openings, level & style

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

Based on

2,163 games

Based on 2,163 games

Openings

2,163 gamesBased on 2,163 player games

Weaknesses

where they slip as ♔ White

Modern Defense1.e4 g6 2.d4 ♝g721 games, last played 3 years ago52.4%losses

Strengths

what holds up for them as ♔ White

Sicilian: d6 Systems1.e4 c5 2.♞f3 d6185 games, last played 5 months ago56.8%wins

Four Knights1.e4 e5 2.♞f3 ♞c6 3.♞c3 ♞f683 games, last played last year56.6%wins

Deep analysis

Stockfish · Classical · 188 analyzedStockfish · Classical games · 188 analyzed

Accuracy by phase

Opening

96.2%

Middlegame

92.5%

Endgame

93.7%

Clutch factor

+3%

Winning (+2)Winning (+2)

93%71g

EqualEqual position

95%59g

Losing (−2)Losing (−2)

90%58g

Accuracy under pressure barely drops when losing.

Problematic pieces

24%

48 err

21%

42 err

20%

39 err

14%

27 err

12%

23 err

17 err

Critical moment

Move 32 avg

1-15

13%

16-25

53%

26-35

27%

36-45

46+

53% of blunders occur after move 26-35. Keep tension until then.of blunders occur after move 26-35. Keep tension until then.

Error heatmap · Critical squaresError heatmap

Few

Many

69Errors mapped

d5 / b4Hotspot zone

Critical squares

1212 err

77 err

66 err

d5/b4 concentrate most errors. Force decisions in those zones.

Critical blunders

10 errors · Stockfish

#43

♞c4?? vs Ivanisevic

Endgame · OTB · 2026

#61

♞c4+?? vs Piekielny

Endgame · Rapid · 2024

#30

♜b2+?? vs Lukasiewicz

Endgame · Rapid · 2024

#54

♛xb7?? vs Fromm

Endgame · OTB · 2024

#39

♛f3?? vs Martinez Alcantara

Endgame · OTB · 2024

#29

fxg3?? vs Duda

Endgame · OTB · 2024

Recent games

2,163 games

Adhiban, B.(2536)

57th Italian Teams Gp A · 28 Apr 2026

0–1

Korpa, Bence(2526)

57th Italian Teams Gp A · 27 Apr 2026

½–½

Sarana, Alexey(2658)

57th Italian Teams Gp A · 27 Apr 2026

½–½

Ivanisevic, Ivan(2543)

57th Italian Teams Gp A · 26 Apr 2026

0–1

Teclaf, Pawel(2572)

57th Italian Teams Gp A · 25 Apr 2026

½–½

Mastrovasilis, Dimitrios(2526)

57th Italian Teams Gp A · 25 Apr 2026

½–½

Endgame statistics

174 endgames (52.1%) · force Opposite-Color Bishops (0%)

Strongest

79.4%

R+Bishop vs R+Knight

Weakest

60.6%

Pure Pawn

Reaches Endgame

52.1%

174 / 334

B vs N Pref

52.4%·47.8%

prefers the bishop

PiecesTypeWin %games

Rook + Equal Minors

56%44%

77.9%353g

R+Bishop vs R+Knight

59%41%

79.4%306g

Rook vs Minor (Exchange)

49%50%

73.7%281g

Rook vs Rook

48%50%

72.6%252g

Rook vs Two Minors

56%44%

78.1%160g

Pure Pawn

36%50%14

60.6%109g

Rook + Equal Minors77.9%353g

R+Bishop vs R+Knight79.4%306g

Rook vs Minor (Exchange)73.7%281g

Rook vs Rook72.6%252g

Rook vs Two Minors78.1%160g

Pure Pawn60.6%109g

Weak in Opposite-Color Bishops: only 0% win rate (8 games). Force this endgameShow all 14 types

Unlock Endgame Statistics

All their endgames: discover where they collapse under pressure

Repertoire

PROTime controls · Years · Events

2,163 games in scope

Explore the repertoireevery move played, ranked by frequency

1,075 games53%W19%D28%L

1,075games in this linewon 53%, drew 19%, lost 28%

Move

1. e4

9577m

53%18%29%

62%

1. c4

442y

50%25%25%

63%

1. ♞f3

445m

59%34%

76%

1. d4

124y

42%50%8

67%

1. b3

63y

83%17

92%

1. ♞c3

69y

50%1733%

58%

1. g3

53y

40%20%40%

50%

1. c3

14y

100%

Scouting report: Oskar Wieczorek (GM, POL)

Oskar Wieczorek

Rating & statistics

Play style

Play against Wieczorek's Twin

Openings

Weaknesses

Strengths

Deep analysis

Critical blunders

Recent games

Endgame statistics

Repertoire