Player profile

Mazur, Jan

Games: 11 Wins: 3 (27%) Draws: 1 (9%) Losses: 7 (64%)
Dossier

9 of 11 games analyzed.

Accuracy: 88.1%
Opened d4: 3/5Opened Nf3: 1/5Opened e4: 1/5
Castled kingside: 7Same-side castling: 6Did not castle: 2Opposite-side castling: 1
Played on the kingside: 5Played in the center: 3Fianchettoed queenside: 3Played on the queenside: 2Fianchettoed kingside: 2
Active pieces: 5Initiated exchanges: 5Kept the bishop pair: 5Backward pawn: 5Sacrificed material: 4Space advantage: 4Avoided exchanges: 3Missed tactics: 3Isolated pawn: 2Played gambits: 2
Openings

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As White 7 games 1W 1D 5L
Queen's Gambit Declined 2 games 0W 0D 2L
Harrwitz Attack 2 games 0W 0D 2L
(unspecified) 1 game 0W 0D 1L
Orthodox Defense 1 game 0W 0D 1L
Semi-Slav Defense 1 game 0W 0D 1L
Normal Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Queen's Pawn Game 1 game 0W 0D 1L
Zukertort Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Queen's Gambit Accepted 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
English Opening 1 game 0W 0D 1L
Symmetrical Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Italian Game 1 game 0W 1D 0L
Hungarian Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
As Black 4 games 2W 0D 2L
French Defense 3 games 1W 0D 2L
King's Indian Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Tarrasch Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Rubinstein Variation 1 game 0W 0D 1L
Capablanca Line 1 game 0W 0D 1L
Queen's Pawn Game 1 game 1W 0D 0L
Colle System 1 game 1W 0D 0L
Anti-Colle 1 game 1W 0D 0L
Blunders Top 4 of 50

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

2026.04.19 · 21... Nxe5 (−47.1% win chance) 0-1
Mazur, Jan
Biel, Maciej
View game
2026.04.15 · 26... Rb6 (−32.9% win chance) 0-1
Mazur, Jan
Zbrzezny, Andrzej
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2026.04.17 · 46. fxg4 (−26.9% win chance) 0-1
Sobotka, Jan
Mazur, Jan
View game
2026.04.17 · 32... g6 (−18.7% win chance) 1-0
Mazur, Jan
Feliksinski, Tadeusz
View game
Games Showing all 11 games
Date Event Round Color Opponent Result Accuracy % First moves