Player profile

Zajaczkowski, Marek

Standard: 1639 Rapid: 1609 Blitz: 0 (last updated 2026-10-02)
FIDE ID: 343410685 (view FIDE profile)
Federation: ENG Sex: M Birth Year: 1980 Age: 46
Title: — Women's title: — Other title: — FOA title: —
Games: 37 Wins: 13 (35%) Draws: 3 (8%) Losses: 21 (57%)
Dossier

36 of 37 games analyzed.

Accuracy: 85%
Opened e4: 11/18Opened f4: 6/18Opened h4: 1/18
Same-side castling: 29Castled kingside: 28Castled queenside: 8Opposite-side castling: 4
Played in the center: 12Played on the kingside: 11Fianchettoed kingside: 6Fianchettoed queenside: 6Played on the queenside: 5
Sacrificed material: 29Missed tactics: 25Active pieces: 24Kept the bishop pair: 21Backward pawn: 16Initiated exchanges: 16Space advantage: 14Isolated pawn: 12Played gambits: 9Avoided exchanges: 7
Openings

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As White 19 games 7W 0D 12L
Bird Opening 5 games 3W 0D 2L
(unspecified) 4 games 3W 0D 1L
(unspecified) 4 games 3W 0D 1L
Dutch Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
French Defense 2 games 0W 0D 2L
Pelikan Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Knight Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Sicilian Defense 2 games 1W 0D 1L
Smith-Morra Gambit Deferred 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Open 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
King's Gambit Accepted 2 games 1W 0D 1L
MacLeod Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Kieseritzky Gambit 1 game 0W 0D 1L
Kolisch Defense 1 game 0W 0D 1L
Alekhine Defense 2 games 0W 0D 2L
Spielmann Gambit 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Pirc Defense 1 game 1W 0D 0L
Austrian Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Kádas Opening 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Scandinavian Defense 1 game 0W 0D 1L
Gubinsky-Melts Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Vienna Game 1 game 0W 0D 1L
Vienna Gambit 1 game 0W 0D 1L
Main Line 1 game 0W 0D 1L
Caro-Kann Defense 1 game 0W 0D 1L
Maróczy Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Blackmar-Diemer Gambit Accepted 1 game 0W 0D 1L
Ziegler Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
As Black 18 games 6W 3D 9L
Alekhine Defense 8 games 3W 1D 4L
Scandinavian Variation 3 games 3W 0D 0L
(unspecified) 3 games 3W 0D 0L
Four Pawns Attack 2 games 0W 0D 2L
Main Line 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Normal Variation 2 games 0W 1D 1L
(unspecified) 2 games 0W 1D 1L
Exchange Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Englund Gambit 5 games 2W 1D 2L
(unspecified) 5 games 2W 1D 2L
(unspecified) 5 games 2W 1D 2L
Queen's Pawn Game 2 games 0W 0D 2L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Anti-Torre 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Dutch Defense 1 game 0W 1D 0L
Fianchetto Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
English Opening 1 game 0W 0D 1L
Anglo-Indian Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Sicilian Defense 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Blunders Top 4 of 237

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

2024.03.03 · 40. gxf3 (−80.7% win chance) 0-1
Casti, Cristina
Zajaczkowski, Marek
View game
2025.03.01 · 18... Qa1+ (−61.7% win chance) 0-1
Zajaczkowski, Marek
Rayment, Elijah
View game
2026.03.14 · 12. Qe1 (−49.6% win chance) 0-1
Taylor, Neil
Zajaczkowski, Marek
View game
2026.03.14 · 45. Kxg2 (−43.8% win chance) 0-1
Taylor, Neil
Zajaczkowski, Marek
View game
Games Showing all 37 games
Date Event Round Color Opponent Result Accuracy % First moves