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Player profile

Janeczko, Jakub

Standard: 2200 Rapid: 2216 Blitz: 2251 (last updated 2026-11-02)
FIDE ID: 21871655 (view FIDE profile)
Federation: POL Sex: M Birth Year: 2007 Age: 19
Title: — Women's title: — Other title: — FOA title: —
Games: 243 Wins: 86 (35%) Draws: 92 (38%) Losses: 64 (26%) Other: 1
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Dossier

211 of 243 games analyzed.

Accuracy: 90.8%
Opened e4: 68/70Opened Nf3: 1/70Opened d4: 1/70
Castled kingside: 104Same-side castling: 89Did not castle: 23Castled queenside: 17Opposite-side castling: 16
Fianchettoed kingside: 53Played in the center: 48Played on the kingside: 47Played on the queenside: 30Fianchettoed queenside: 13
Active pieces: 106Kept the bishop pair: 87Space advantage: 84Sacrificed material: 81Initiated exchanges: 78Backward pawn: 68Isolated pawn: 68Avoided exchanges: 36Missed tactics: 29Played gambits: 20
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Openings

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As White 85 games 32W 34D 19L
Sicilian Defense 36 games 17W 10D 9L
(unspecified) 15 games 10W 2D 3L
(unspecified) 15 games 10W 2D 3L
Najdorf Variation 5 games 1W 2D 2L
(unspecified) 2 games 1W 0D 1L
Amsterdam Variation 2 games 0W 1D 1L
English Attack 1 game 0W 1D 0L
Nyezhmetdinov-Rossolimo Attack 3 games 1W 2D 0L
Gurgenidze Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Fianchetto Variation 1 game 1W 0D 0L
Closed 3 games 2W 1D 0L
Carlsen Variation 2 games 2W 0D 0L
(unspecified) 1 game 0W 1D 0L
Moscow Variation 3 games 1W 1D 1L
(unspecified) 2 games 1W 0D 1L
Main Line 1 game 0W 1D 0L
Hyperaccelerated Dragon 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Kupreichik Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Lasker-Pelikan Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Taimanov Variation 1 game 0W 1D 0L
Bastrikov Variation 1 game 0W 1D 0L
Richter-Rauzer Variation 1 game 1W 0D 0L
Neo-Modern Variation, Early Deviations 1 game 1W 0D 0L
Kan Variation 1 game 1W 0D 0L
Polugaevsky Variation 1 game 1W 0D 0L
Accelerated Dragon 1 game 0W 0D 1L
Maróczy Bind 1 game 0W 0D 1L
French Defense 11 games 3W 5D 3L
Winawer Variation 5 games 1W 3D 1L
Portisch-Hook Variation 2 games 0W 2D 0L
Petrosian Variation 1 game 0W 0D 1L
Poisoned Pawn Variation Declined 1 game 1W 0D 0L
Advance Variation 1 game 0W 1D 0L
Steinitz Variation 3 games 1W 1D 1L
Boleslavsky Variation 3 games 1W 1D 1L
King's Indian Attack 3 games 1W 1D 1L
(unspecified) 3 games 1W 1D 1L
Caro-Kann Defense 11 games 5W 4D 2L
Maróczy Variation 4 games 2W 2D 0L
(unspecified) 4 games 2W 2D 0L
Advance Variation 2 games 0W 0D 2L
Botvinnik-Carls Defense 1 game 0W 0D 1L
Van der Wiel Attack 1 game 0W 0D 1L
Breyer Variation 2 games 1W 1D 0L
(unspecified) 2 games 1W 1D 0L
Karpov Variation 1 game 1W 0D 0L
Smyslov Variation 1 game 1W 0D 0L
Classical Variation 1 game 0W 1D 0L
Lobron System 1 game 0W 1D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Four Knights Game 8 games 3W 3D 2L
Gunsberg Variation 8 games 3W 3D 2L
(unspecified) 8 games 3W 3D 2L
Bishop's Opening 4 games 1W 2D 1L
Vienna Hybrid 4 games 1W 2D 1L
(unspecified) 3 games 1W 2D 0L
Spielmann Attack 1 game 0W 0D 1L
Italian Game 3 games 0W 3D 0L
Two Knights Defense 2 games 0W 2D 0L
Modern Bishop's Opening 2 games 0W 2D 0L
Giuoco Pianissimo 1 game 0W 1D 0L
Italian Four Knights Variation 1 game 0W 1D 0L
Philidor Defense 3 games 1W 1D 1L
Lion Variation 2 games 1W 1D 0L
(unspecified) 2 games 1W 1D 0L
Exchange Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Scandinavian Defense 2 games 0W 2D 0L
Portuguese Gambit 2 games 0W 2D 0L
Wuss Variation 2 games 0W 2D 0L
Czech Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Zukertort Opening 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Petrov's Defense 1 game 0W 1D 0L
Damiano Variation 1 game 0W 1D 0L
Kholmov Gambit 1 game 0W 1D 0L
Vienna Game 1 game 0W 1D 0L
Frankenstein-Dracula Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Queen's Pawn Game 1 game 1W 0D 0L
London System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Ruy Lopez 1 game 0W 0D 1L
Closed 1 game 0W 0D 1L
Martinez Variation 1 game 0W 0D 1L
King's Indian Attack 1 game 0W 1D 0L
Sicilian Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
As Black 91 games 29W 34D 27L
Sicilian Defense 27 games 6W 14D 6L
Nyezhmetdinov-Rossolimo Attack 8 games 1W 4D 2L
(unspecified) 7 games 1W 4D 2L
Fianchetto Variation 1 game 0W 0D 0L
Kalashnikov Variation 3 games 1W 2D 0L
(unspecified) 3 games 1W 2D 0L
Moscow Variation 3 games 0W 2D 1L
(unspecified) 3 games 0W 2D 1L
Four Knights Variation 2 games 0W 1D 1L
Exchange Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 1D 0L
Accelerated Dragon 2 games 1W 1D 0L
Maróczy Bind 1 game 1W 0D 0L
Modern Variation 1 game 0W 1D 0L
Pin Variation 1 game 0W 1D 0L
Koch Variation 1 game 0W 1D 0L
Wing Gambit 1 game 0W 1D 0L
Abrahams Variation 1 game 0W 1D 0L
Najdorf Variation 1 game 0W 0D 1L
Petronić Attack 1 game 0W 0D 1L
Sozin Attack 1 game 0W 0D 1L
Flank Variation 1 game 0W 0D 1L
Modern Variations 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Czerniak Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Delayed Alapin Variation 1 game 1W 0D 0L
with e6 1 game 1W 0D 0L
Alapin Variation 1 game 0W 1D 0L
Smith-Morra Declined 1 game 0W 1D 0L
French Variation 1 game 0W 1D 0L
Westerinen Attack 1 game 0W 1D 0L
Alekhine Defense 24 games 12W 3D 9L
Exchange Variation 11 games 7W 2D 2L
(unspecified) 8 games 4W 2D 2L
Voronezh Variation 3 games 3W 0D 0L
Modern Variation 5 games 1W 1D 3L
Larsen Variation 5 games 1W 1D 3L
Four Pawns Attack 4 games 2W 0D 2L
Fianchetto Variation 3 games 2W 0D 1L
(unspecified) 1 game 0W 0D 1L
Sämisch Attack 2 games 0W 0D 2L
(unspecified) 2 games 0W 0D 2L
Two Pawns Attack 1 game 1W 0D 0L
Tate Variation 1 game 1W 0D 0L
Normal Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
English Opening 9 games 2W 5D 2L
Symmetrical Variation 6 games 1W 3D 2L
Four Knights Variation 2 games 0W 1D 1L
Mecking Variation 1 game 0W 1D 0L
Rubinstein Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 0D 1L
Anti-Benoni Variation 1 game 1W 0D 0L
King's English Variation 3 games 1W 2D 0L
Three Knights System 1 game 0W 1D 0L
Reversed Closed Sicilian 1 game 0W 1D 0L
(unspecified) 1 game 1W 0D 0L
Benko Gambit Accepted 4 games 1W 1D 2L
Fully Accepted Variation 3 games 0W 1D 2L
(unspecified) 3 games 0W 1D 2L
Dlugy Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Queen's Pawn Game 4 games 1W 1D 2L
Symmetrical Variation 1 game 0W 0D 1L
Pseudo-Catalan 1 game 0W 0D 1L
Chigorin Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Modern Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
London System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Zukertort Opening 3 games 1W 0D 2L
Sicilian Invitation 3 games 1W 0D 2L
(unspecified) 3 games 1W 0D 2L
Indian Defense 3 games 2W 1D 0L
Pseudo-Benko 2 games 1W 1D 0L
(unspecified) 2 games 1W 1D 0L
Normal Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
King's Indian Defense 3 games 0W 1D 2L
Averbakh Variation 2 games 0W 0D 2L
Modern Defense, Burgess Line 1 game 0W 0D 1L
Modern Defense 1 game 0W 0D 1L
Fianchetto Variation 1 game 0W 1D 0L
Uhlmann-Szabo System 1 game 0W 1D 0L
Catalan Opening 2 games 0W 0D 2L
Open Defense 2 games 0W 0D 2L
(unspecified) 2 games 0W 0D 2L
Queen's Gambit Declined 2 games 1W 1D 0L
Ragozin Defense 1 game 1W 0D 0L
Alekhine Variation 1 game 1W 0D 0L
Austrian Defense 1 game 0W 1D 0L
Gusev Countergambit 1 game 0W 1D 0L
Benko Gambit Declined 2 games 1W 1D 0L
Main Line 2 games 1W 1D 0L
(unspecified) 2 games 1W 1D 0L
Bogo-Indian Defense 1 game 0W 1D 0L
Retreat Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
King's Indian Attack 1 game 0W 1D 0L
Sicilian Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Benoni Defense 1 game 0W 1D 0L
Fianchetto Variation 1 game 0W 1D 0L
Hastings Defense, Main Line 1 game 0W 1D 0L
London System, with Be2 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Vienna Game 1 game 1W 0D 0L
Vienna Gambit 1 game 1W 0D 0L
Paulsen Attack 1 game 1W 0D 0L
French Defense 1 game 0W 1D 0L
Schlechter Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Queen's Indian Defense 1 game 0W 1D 0L
Kasparov-Petrosian Variation 1 game 0W 1D 0L
Hedgehog Variation 1 game 0W 1D 0L
Trompowsky Attack 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Blunders Top 4 of 740

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

2024.06.27 · 24. Rf3 (−92.1% win chance) 1-0
Nguyen, Piotr
Janeczko, Jakub
View game
? · 24. Bc6 (−78.8% win chance) 1-0
Musial, Igor
Janeczko, Jakub
View game
2024.06.27 · 25. Rxf5 (−76.7% win chance) 1-0
Nguyen, Piotr
Janeczko, Jakub
View game
2024.07.08 · 35... Qc1 (−70.4% win chance) 0-1
Janeczko, Jakub
Pancewicz, Szymon
View game
View blunders & mistakes
Games Showing all 243 games
Date Event Round Color Opponent Result Accuracy % First moves