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Player profile

Derejczyk, Maciej

Standard: 0 Rapid: 0 Blitz: 1434 (last updated 2026-11-02)
FIDE ID: 21060460 (view FIDE profile)
Federation: POL Sex: M Birth Year: 1977 Age: 49
Title: — Women's title: — Other title: — FOA title: —
Games: 8 Wins: 2 (25%) Draws: 1 (13%) Losses: 5 (63%)
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Dossier

8 of 8 games analyzed.

Accuracy: 79.3%
Opened e4: 4/4
Castled kingside: 5Same-side castling: 5Castled queenside: 2Did not castle: 1Opposite-side castling: 1
Played on the queenside: 5Fianchettoed queenside: 3Played in the center: 1
Sacrificed material: 5Missed tactics: 5Active pieces: 4Backward pawn: 3Initiated exchanges: 3Isolated pawn: 3Kept the bishop pair: 3Space advantage: 3Played gambits: 1Avoided exchanges: 1
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Openings

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As White 4 games 1W 1D 2L
Ruy Lopez 1 game 1W 0D 0L
Exchange Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Caro-Kann Defense 1 game 0W 0D 1L
Hillbilly Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Italian Game 1 game 0W 1D 0L
Giuoco Pianissimo 1 game 0W 1D 0L
Normal 1 game 0W 1D 0L
Sicilian Defense 1 game 0W 0D 1L
Bowdler Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
As Black 4 games 1W 0D 3L
French Defense 3 games 1W 0D 2L
Knight Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Steiner Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Schlechter Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Polish Opening 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Blunders Top 4 of 43

This player's costliest moves in analyzed games. Can you find the winning move?

2026.08.01 · 13... Bxa3 (−40.5% win chance) 1-0
Derejczyk, Maciej
Zagorski, Krzysztof
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2026.08.01 · 11... b4 (−30.1% win chance) 1-0
Derejczyk, Maciej
Kotkowska, Agnieszka
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2026.08.01 · 22. Nxb7 (−28.5% win chance) 1/2-1/2
Leszczynski, Bartlomiej
Derejczyk, Maciej
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2026.08.01 · 28. Ne5 (−27.5% win chance) 1-0
Ustyjanczuk, Adam
Derejczyk, Maciej
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View blunders & mistakes
Games Showing all 8 games
Date Event Round Color Opponent Result Accuracy % First moves