Player profile

Mazur, Stefan

Standard: 2374 Rapid: 2386 Blitz: 2297 (last updated 2026-11-02)
FIDE ID: 14909332 (view FIDE profile)
Federation: SVK Sex: M Birth Year: 1992 Age: 34
Title: IM Women's title: — Other title: — FOA title: —
Games: 169 Wins: 79 (47%) Draws: 43 (25%) Losses: 47 (28%)
Dossier

158 of 169 games analyzed.

Accuracy: 90.4%
Opened e4: 47/59Opened Nf3: 4/59Opened d4: 3/59Opened Nc3: 3/59Opened b3: 1/59Opened c3: 1/59
Castled kingside: 92Same-side castling: 80Castled queenside: 20Opposite-side castling: 19Did not castle: 6
Played on the kingside: 46Fianchettoed kingside: 30Played in the center: 30Played on the queenside: 23Fianchettoed queenside: 19
Active pieces: 93Initiated exchanges: 71Sacrificed material: 70Backward pawn: 63Isolated pawn: 58Space advantage: 56Kept the bishop pair: 52Missed tactics: 22Avoided exchanges: 22Played gambits: 16
Openings

Click "+" to add that group to the games list below. Multiple groups can be added at once.

As White 64 games 26W 18D 20L
Sicilian Defense 23 games 8W 4D 11L
French Variation 4 games 2W 0D 2L
Westerinen Attack 2 games 1W 0D 1L
Normal 1 game 1W 0D 0L
(unspecified) 1 game 0W 0D 1L
Modern Variations 3 games 1W 0D 2L
(unspecified) 3 games 1W 0D 2L
Closed 2 games 1W 1D 0L
Anti-Sveshnikov Variation, with d6 2 games 1W 1D 0L
Taimanov Variation 2 games 0W 1D 1L
Bastrikov Variation 2 games 0W 1D 1L
Najdorf Variation 2 games 0W 0D 2L
Adams Attack 2 games 0W 0D 2L
Richter-Rauzer Variation 2 games 0W 0D 2L
Neo-Modern Variation, Nyezhmetdinov Attack 1 game 0W 0D 1L
Vitolins Variation 1 game 0W 0D 1L
Classical Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Dragon Variation 1 game 0W 1D 0L
Yugoslav Attack, Czerniak Variation 1 game 0W 1D 0L
O'Kelly Variation 1 game 1W 0D 0L
Venice System 1 game 1W 0D 0L
Nyezhmetdinov-Rossolimo Attack 1 game 0W 0D 1L
Fianchetto Variation 1 game 0W 0D 1L
Hyperaccelerated Dragon 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Accelerated Dragon 1 game 1W 0D 0L
Modern Bc4 Variation 1 game 1W 0D 0L
Kan Variation 1 game 0W 1D 0L
Polugaevsky Variation 1 game 0W 1D 0L
Alapin Variation 1 game 0W 0D 1L
Smith-Morra Declined 1 game 0W 0D 1L
Ruy Lopez 14 games 6W 4D 4L
Closed 8 games 4W 1D 3L
Chigorin Defense 3 games 2W 0D 1L
Breyer Defense, Zaitsev Hybrid 2 games 1W 0D 1L
Zaitsev System 1 game 1W 0D 0L
(unspecified) 1 game 0W 1D 0L
Martinez Variation 1 game 0W 0D 1L
Morphy Defense 5 games 2W 2D 1L
Cozio Defense 1 game 1W 0D 0L
Neo-Arkhangelsk Variation 1 game 1W 0D 0L
Schliemann Defense Deferred 1 game 0W 1D 0L
Tarrasch Variation 1 game 0W 1D 0L
Steinitz Deferred 1 game 0W 0D 1L
Berlin Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Caro-Kann Defense 7 games 2W 5D 0L
Classical Variation 4 games 1W 3D 0L
Lobron System 2 games 1W 1D 0L
Main Line 2 games 0W 2D 0L
Advance Variation 1 game 0W 1D 0L
Short Variation 1 game 0W 1D 0L
Endgame Offer 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Main Line 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
French Defense 5 games 2W 1D 2L
Two Knights Variation 2 games 1W 0D 1L
(unspecified) 2 games 1W 0D 1L
Hecht-Reefschläger Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Winawer Variation 1 game 1W 0D 0L
Alekhine Gambit Accepted 1 game 1W 0D 0L
Advance Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
? 4 games 3W 1D 0L
(unspecified) 4 games 3W 1D 0L
(unspecified) 4 games 3W 1D 0L
Four Knights Game 3 games 2W 0D 1L
Spanish Variation 1 game 1W 0D 0L
Symmetrical Variation 1 game 1W 0D 0L
Gunsberg Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Van Geet Opening 2 games 1W 0D 1L
(unspecified) 2 games 1W 0D 1L
(unspecified) 2 games 1W 0D 1L
King's Indian Attack 1 game 1W 0D 0L
Wahls Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
English Opening 1 game 0W 1D 0L
Symmetrical Variation 1 game 0W 1D 0L
Hedgehog Defense 1 game 0W 1D 0L
Nimzo-Larsen Attack 1 game 0W 1D 0L
Modern Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Italian Game 1 game 0W 0D 1L
Scotch Gambit 1 game 0W 0D 1L
Anderssen Attack 1 game 0W 0D 1L
Vienna Game 1 game 1W 0D 0L
Mengarini Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Tarrasch Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
As Black 64 games 32W 13D 19L
King's Indian Defense 7 games 3W 2D 2L
Fianchetto Variation 4 games 2W 1D 1L
Uhlmann-Szabo System 3 games 1W 1D 1L
Carlsbad Variation 1 game 1W 0D 0L
Orthodox Variation 2 games 0W 1D 1L
Positional Defense 1 game 0W 1D 0L
Bayonet Attack 1 game 0W 0D 1L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Ruy Lopez 6 games 0W 4D 2L
Closed 3 games 0W 1D 2L
Balla Variation 1 game 0W 0D 1L
Delayed Exchange 1 game 0W 0D 1L
(unspecified) 1 game 0W 1D 0L
Morphy Defense 2 games 0W 2D 0L
Mackenzie Variation 1 game 0W 1D 0L
Fianchetto Defense Deferred 1 game 0W 1D 0L
Cozio Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Queen's Gambit Declined 6 games 2W 0D 4L
Albin Countergambit 3 games 2W 0D 1L
(unspecified) 3 games 2W 0D 1L
Chigorin Defense 1 game 0W 0D 1L
Main Line 1 game 0W 0D 1L
Tartakower Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Semi-Slav 1 game 0W 0D 1L
Abrahams Variation 1 game 0W 0D 1L
English Opening 5 games 4W 0D 1L
King's English Variation 2 games 2W 0D 0L
Four Knights Variation, Quiet Line 1 game 1W 0D 0L
Four Knights Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Four Knights System 1 game 0W 0D 1L
Nimzowitsch Variation 1 game 0W 0D 1L
Agincourt Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
? 5 games 3W 1D 1L
(unspecified) 5 games 3W 1D 1L
(unspecified) 5 games 3W 1D 1L
Four Knights Game 4 games 2W 2D 0L
Spanish Variation 3 games 2W 1D 0L
(unspecified) 1 game 1W 0D 0L
Rubinstein Variation Accepted 1 game 0W 1D 0L
Symmetrical Variation 1 game 1W 0D 0L
Scotch Variation Accepted 1 game 0W 1D 0L
Main Line 1 game 0W 1D 0L
Italian Game 4 games 1W 0D 3L
Two Knights Defense 3 games 1W 0D 2L
Modern Bishop's Opening 3 games 1W 0D 2L
Classical Variation 1 game 0W 0D 1L
Giuoco Pianissimo 1 game 0W 0D 1L
King's Indian Attack 4 games 3W 1D 0L
Symmetrical Defense 2 games 1W 1D 0L
(unspecified) 2 games 1W 1D 0L
(unspecified) 2 games 2W 0D 0L
(unspecified) 2 games 2W 0D 0L
Queen's Pawn Game 3 games 1W 2D 0L
Krause Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Stonewall Attack 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Chandler Gambit 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Nimzowitsch Defense 3 games 2W 1D 0L
Williams Variation 2 games 1W 1D 0L
(unspecified) 2 games 1W 1D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Caro-Kann Defense 2 games 2W 0D 0L
Endgame Offer 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Exchange Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Modern Defense 2 games 2W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Lizard Defense 1 game 1W 0D 0L
Mittenberger Gambit 1 game 1W 0D 0L
Indian Defense 2 games 1W 0D 1L
Przepiorka Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Accelerated London System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Scotch Game 2 games 2W 0D 0L
Mieses Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Scotch Gambit 1 game 1W 0D 0L
Advance Variation 1 game 1W 0D 0L
Mexican Defense 2 games 0W 0D 2L
(unspecified) 2 games 0W 0D 2L
(unspecified) 2 games 0W 0D 2L
Slav Defense 1 game 0W 0D 1L
Quiet Variation 1 game 0W 0D 1L
Schallopp Defense 1 game 0W 0D 1L
Bishop's Opening 1 game 1W 0D 0L
Vienna Hybrid 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Vienna Game 1 game 1W 0D 0L
Frankenstein-Dracula Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Catalan Opening 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
London System 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Bird Opening 1 game 1W 0D 0L
Dutch Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Van't Kruijs Opening 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Blunders Top 4 of 519

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

2025.05.02 · 47. Qxf6 (−83.7% win chance) 0-1
Krnan, Tomas
Mazur, Stefan
View game
2023.09.09 · 32. Rxh4 (−83% win chance) 0-1
Koval, Maros
Mazur, Stefan
View game
2025.05.02 · 45. Qxh5 (−80.7% win chance) 0-1
Krnan, Tomas
Mazur, Stefan
View game
2023.09.09 · 36... Nf5 (−68.8% win chance) 1-0
Mazur, Stefan
Jablonicky, Martin
View game
Games Showing all 169 games
Date Event Round Color Opponent Result Accuracy % First moves