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Player profile

Kotkowski, Jacek Stefan

Standard: 1672 Rapid: 1698 Blitz: 1821 (last updated 2026-10-02)
FIDE ID: 1542150 (view FIDE profile)
Federation: NOR Sex: M Birth Year: 2007 Age: 19
Title: — Women's title: — Other title: — FOA title: —
Games: 29 Wins: 14 (48%) Draws: 5 (17%) Losses: 9 (31%) Other: 1
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Dossier

27 of 29 games analyzed.

Accuracy: 87.5%
Opened e4: 12/13Opened d4: 1/13
Castled kingside: 21Same-side castling: 14Castled queenside: 3Opposite-side castling: 3Did not castle: 3
Played in the center: 14Fianchettoed queenside: 6Played on the queenside: 6Fianchettoed kingside: 5Played on the kingside: 5
Sacrificed material: 18Active pieces: 18Kept the bishop pair: 16Initiated exchanges: 16Isolated pawn: 14Space advantage: 14Backward pawn: 9Missed tactics: 9Played gambits: 8Avoided exchanges: 7
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Openings

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As White 14 games 7W 1D 5L
Sicilian Defense 6 games 3W 0D 2L
Löwenthal Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Kalashnikov Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Taimanov Variation 1 game 1W 0D 0L
Bastrikov Variation, English Attack 1 game 1W 0D 0L
Dragon Variation 1 game 0W 0D 1L
Modern Bc4 Variation 1 game 0W 0D 1L
Lasker-Pelikan Variation 1 game 1W 0D 0L
Sveshnikov Variation, Chelyabinsk Variation 1 game 1W 0D 0L
Najdorf Variation 1 game 0W 0D 0L
Petronić Attack 1 game 0W 0D 0L
French Defense 2 games 1W 0D 1L
Schlechter Variation 2 games 1W 0D 1L
(unspecified) 2 games 1W 0D 1L
Rubinstein Opening 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Rat Defense 1 game 1W 0D 0L
Balogh Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Caro-Kann Defense 1 game 1W 0D 0L
Two Knights Attack 1 game 1W 0D 0L
Mindeno Variation 1 game 1W 0D 0L
Scotch Game 1 game 1W 0D 0L
Scotch Gambit 1 game 1W 0D 0L
London Defense 1 game 1W 0D 0L
Philidor Defense 1 game 0W 0D 1L
Exchange Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Modern Defense 1 game 0W 0D 1L
Norwegian Defense 1 game 0W 0D 1L
Norwegian Gambit 1 game 0W 0D 1L
As Black 15 games 7W 4D 4L
Sicilian Defense 8 games 3W 3D 2L
Najdorf Variation 2 games 0W 1D 1L
Opocensky Variation 1 game 0W 1D 0L
Adams Attack 1 game 0W 0D 1L
Closed 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Smith-Morra Gambit Accepted 1 game 0W 0D 1L
Fianchetto Defense 1 game 0W 0D 1L
McDonnell Attack 1 game 1W 0D 0L
Toilet Variation 1 game 1W 0D 0L
Alapin Variation 1 game 0W 1D 0L
Barmen Defense 1 game 0W 1D 0L
Moscow Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Modern Variations 1 game 1W 0D 0L
Main Line 1 game 1W 0D 0L
Indian Defense 3 games 1W 1D 1L
Reversed Chigorin Defense 2 games 1W 0D 1L
(unspecified) 2 games 1W 0D 1L
Accelerated London System 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
English Opening 2 games 2W 0D 0L
Symmetrical Variation 1 game 1W 0D 0L
Anti-Benoni Variation, Spielmann Defense 1 game 1W 0D 0L
King's English Variation 1 game 1W 0D 0L
Reversed Closed Sicilian 1 game 1W 0D 0L
Nimzo-Indian Defense 1 game 0W 0D 1L
Sämisch Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Catalan Opening 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Blunders Top 4 of 124

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

2026.08.01 · 21. Bc1 (−48.8% win chance) 1-0
Olejniczak, Romuald
Kotkowski, Jacek Stefan
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2026.08.01 · 43. Qd4 (−47.5% win chance) 0-1
Chromicz, Andrzej
Kotkowski, Jacek Stefan
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2026.08.03 · 40. Ke2 (−44.7% win chance) 0-1
Klek, Mikolaj
Kotkowski, Jacek Stefan
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2026.08.01 · 40. Qe3 (−39.4% win chance) 0-1
Chromicz, Andrzej
Kotkowski, Jacek Stefan
View game
View blunders & mistakes
Games Showing all 29 games
Date Event Round Color Opponent Result Accuracy % First moves