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Player profile

Koupil, Stepan

Standard: 1842 Rapid: 1848 Blitz: 1784 (last updated 2026-11-02)
FIDE ID: 23742119 (view FIDE profile)
Federation: CZE Sex: M Birth Year: 2012 Age: 14
Title: — Women's title: — Other title: — FOA title: —
Games: 41 Wins: 15 (37%) Draws: 9 (22%) Losses: 17 (41%)
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Dossier

34 of 41 games analyzed.

Accuracy: 88.4%
Opened e4: 10/10
Same-side castling: 13Castled kingside: 11Castled queenside: 5Did not castle: 4Opposite-side castling: 2
Played in the center: 6Played on the kingside: 5Played on the queenside: 4Fianchettoed queenside: 2
Sacrificed material: 18Active pieces: 16Isolated pawn: 12Initiated exchanges: 10Played gambits: 7Missed tactics: 7Space advantage: 6Avoided exchanges: 6Backward pawn: 5Kept the bishop pair: 5
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Openings

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

As White 13 games 5W 5D 3L
Sicilian Defense 7 games 2W 2D 3L
Moscow Variation 2 games 0W 1D 1L
Main Line 2 games 0W 1D 1L
Old Sicilian 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Delayed Alapin Variation 1 game 0W 0D 1L
with e6 1 game 0W 0D 1L
Alapin Variation 1 game 1W 0D 0L
Barmen Defense 1 game 1W 0D 0L
O'Kelly Variation 1 game 0W 1D 0L
Venice System 1 game 0W 1D 0L
Najdorf Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Ruy Lopez 1 game 0W 1D 0L
Exchange 1 game 0W 1D 0L
Alekhine Variation 1 game 0W 1D 0L
Petrov's Defense 1 game 1W 0D 0L
Three Knights Game 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Four Knights Game 1 game 0W 1D 0L
Scotch Variation 1 game 0W 1D 0L
Schmid Defense 1 game 0W 1D 0L
Caro-Kann Defense 1 game 0W 1D 0L
Advance Variation 1 game 0W 1D 0L
Bayonet Attack 1 game 0W 1D 0L
Scotch Game 1 game 1W 0D 0L
Schmidt Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Pirc Defense 1 game 1W 0D 0L
Byrne Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
As Black 14 games 7W 2D 5L
Italian Game 4 games 1W 1D 2L
Evans Gambit 2 games 0W 0D 2L
Tartakower Attack 2 games 0W 0D 2L
Classical Variation 2 games 1W 1D 0L
Giuoco Pianissimo 1 game 0W 1D 0L
Greco Gambit, Moeller-Therkatz Attack 1 game 1W 0D 0L
English Opening 2 games 1W 0D 1L
Agincourt Defense 1 game 0W 0D 1L
Neo-Catalan Declined 1 game 0W 0D 1L
Anglo-Indian Defense 1 game 1W 0D 0L
Hedgehog System 1 game 1W 0D 0L
Caro-Kann Defense 2 games 1W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Classical Variation 1 game 1W 0D 0L
Main Line 1 game 1W 0D 0L
Nimzo-Larsen Attack 2 games 0W 1D 1L
Modern Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Classical Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Catalan Opening 1 game 1W 0D 0L
Tarrasch Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Vienna Game 1 game 1W 0D 0L
Falkbeer Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Ruy Lopez 1 game 1W 0D 0L
Morphy Defense 1 game 1W 0D 0L
Tarrasch Variation 1 game 1W 0D 0L
Philidor Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Blunders Top 4 of 154

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

2026.10.29 · 26... Qxf5 (−59% win chance) 1-0
Koupil, Stepan
Simakhin, Martin
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2025.10.25 · 49. Nf1 (−47.5% win chance) 0-1
Benes, Jan Jeronym
Koupil, Stepan
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? · 32. Qe4 (−39.6% win chance) 0-1
Vraj, Ondrej
Koupil, Stepan
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2026.03.07 · 56... c3 (−36.7% win chance) 0-1
Koupil, Stepan
Honcharov, Makar
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View blunders & mistakes
Games Showing all 41 games
Date Event Round Color Opponent Result Accuracy % First moves