Scouting report: Maciej Klekowski (GM, POL)

2,310 over-the-board games in the Chess Stalker database (1,045 classical, 257 rapid, 1,008 blitz): 52% wins, 21% draws, 27% losses. FIDE rating 2470 standard, 2491 rapid, 2545 blitz. 423 games analyzed with Stockfish: 93% accuracy, 0.13 blunders per game.

Opening repertoire of Maciej Klekowski 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 Maciej Klekowski's style so you can rehearse the matchup — free online.

Full report: https://chessstalker.com/fide/1132717 — no account needed.

Maciej Klekowski

TitleGrandmasterFederationPolandBorn1992FIDE ID1132717

Classical2470

Rapid2491

Blitz2545

Games2,310

W · D · LWon · Drawn · Lost52 / 21 / 27

Peak2515Jan 2020

Rating history

2350

2450

2550

Oct

2024

Apr

Jul

Oct

2025

Apr

Jul

Oct

2026

Apr

Jul

Oct

Oct 2023Nov 2026

Classical2470Rapid2491Blitz2545no games played

Accuracy by phase

95.7%Opening92.5%Middlegame94.0%Endgame

Clutch factor

Insufficient data

Play style

Elite accuracy: 92.5% average

Solid conversion: 82%

Very consistent (89%)

Very precise: only 0.1 blunders/game

Dominates 1.e4 as

(71% in 200 games)

Recent games

Kowalczyk, Pawel(2227)

Polish Rapid Championship 2026 · 3 Oct 2026

1–0

Trzeciak, Emilian(1869)

Polish Rapid Championship 2026 · 3 Oct 2026

1–0

Reza, Wojciech(2320)

Polish Rapid Championship 2026 · 3 Oct 2026

1–0

Aliavdin, Nikolai(2352)

Polish Rapid Championship 2026 · 3 Oct 2026

1–0

Perucki, Maciej(2215)

Polish Rapid Championship 2026 · 3 Oct 2026

0–1

Play against Klekowski's Twin

Their real openings, level & style

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

Based on

2,310 games

Based on 2,310 games

Openings

1,159 games as White · scores 66.7%

Weaknesses

where they slip as ♔ White

Caro-Kann: Advance1.e4 c6 2.d4 d5 3.e5only 9 games, last played 6 years ago55.6%losses

French: Tarrasch1.e4 e6 2.d4 d5 3.♞d212 games, last played 5 years ago41.7%losses

Strengths

what holds up for them as ♔ White

Pirc Defense1.e4 d6 2.d4 ♞f610 games, last played 5 years ago80.0%wins

Ruy Lopez: Morphy1.e4 e5 2.♞f3 ♞c6 3.♝b5 a612 games, last played last year75.0%wins

By family

open a family to see its lines

PROTime controls · Years · Events

2,310 games in scope

LineECOGamesLast playedWins · draws · lossesScorevs 66.7%

A10–A308034w

55%22%23%

66.2%—

B20–B50944w

62%1424%

68.6%—

A00–A04854m

62%1424%

68.2%—

C00264w

65%1223%

71.2%+4.5 pts

B10–B15194m

47%1142%

52.6%—

B00–B06183y

89%

91.7%—

C63–C70171y

59%1823%

67.6%—

C20–C44132y

58%834%

57.7%—

Mistakes

Problematic pieces

Insufficient data

Critical moment

Insufficient data

Error heatmap · Critical squaresError heatmap

Insufficient data

Critical blunders

Tactical errors analyzed with Stockfish

Couldn't load this.

Endgame statistics

325 endgames (50%) · force Queen vs Queen (13%)

Strongest

79.4%

R+Bishop vs R+Knight

Weakest

60.6%

Pure Pawn

Reaches Endgame

50%

325 / 650

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 Queen vs Queen: only 13% win rate (15 games). Force this endgameShow all 14 types

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All their endgames: discover where they collapse under pressure

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Repertoire

PROTime controls · Years · Events

2,310 games in scope

8

7

6

5

4

3

2

1a

b

c

d

e

f

g

h

Explore the repertoireevery move played, ranked by frequency

1,159 games57%W20%D23%L

1,159games in this linewon 57%, drew 20%, lost 23%

Move

1. c4

8034w

55%22%23%

66%

1. e4

2014w

65%1322%

70%

1. ♞f3

724m

64%1521%

72%

1. d4

701y

48%26%26%

60%

1. f4

51y

40%20%40%

50%

1. ♞c3

33y

100%

100%

1. g4

24y

50%50%

50%

1. h4

12y

0%

1. d3

119y

100%

0%

1. b4

16y

100%

0%

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