Chess Games DB
Find player games & weaknesses
Log in
Player profile

Grudzien, Jonatan

Standard: 1535 Rapid: 1660 Blitz: 1710 (last updated 2026-11-02)
FIDE ID: 91120845 (view FIDE profile)
Federation: POL Sex: M Birth Year: 2016 Age: 10
Title: — Women's title: — Other title: — FOA title: —
Games: 25 Wins: 10 (40%) Draws: 6 (24%) Losses: 9 (36%)
View all games
Dossier

23 of 25 games analyzed.

Accuracy: 85.3%
Opened e4: 11/11
Castled kingside: 20Same-side castling: 19Did not castle: 3Opposite-side castling: 1
Played in the center: 10Played on the queenside: 5Played on the kingside: 4Fianchettoed queenside: 1Fianchettoed kingside: 1
Active pieces: 16Sacrificed material: 15Kept the bishop pair: 15Space advantage: 14Initiated exchanges: 13Backward pawn: 9Missed tactics: 8Isolated pawn: 7Played gambits: 6Avoided exchanges: 6
View full dossier Analyze this player's games
Openings

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

As White 11 games 4W 2D 5L
Ponziani Opening 3 games 1W 0D 2L
Caro Gambit 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Jaenisch Counterattack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Sicilian Defense 3 games 1W 0D 2L
Kan Variation 2 games 0W 0D 2L
Maróczy Bind, Réti Variation 1 game 0W 0D 1L
Knight Variation 1 game 0W 0D 1L
Modern Variations 1 game 1W 0D 0L
Main Line 1 game 1W 0D 0L
French Defense 1 game 1W 0D 0L
Exchange Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Caro-Kann Defense 1 game 0W 0D 1L
Panov Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Scandinavian Defense 1 game 1W 0D 0L
Marshall Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Pirc Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Italian Game 1 game 0W 1D 0L
Paris Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
As Black 14 games 6W 4D 4L
Italian Game 6 games 3W 2D 1L
Giuoco Pianissimo 3 games 2W 1D 0L
(unspecified) 2 games 2W 0D 0L
Normal 1 game 0W 1D 0L
Classical Variation 2 games 1W 0D 1L
(unspecified) 1 game 0W 0D 1L
Giuoco Pianissimo 1 game 1W 0D 0L
Deutz Gambit 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Ruy Lopez 2 games 0W 1D 1L
Closed 1 game 0W 1D 0L
Pilnik Variation 1 game 0W 1D 0L
Morphy Defense 1 game 0W 0D 1L
Wormald Attack 1 game 0W 0D 1L
Danish Gambit Accepted 1 game 1W 0D 0L
Copenhagen Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Hungarian Opening 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Vienna Game 1 game 0W 1D 0L
Paulsen Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Queen's Gambit Declined 1 game 0W 0D 1L
Orthodox Defense 1 game 0W 0D 1L
Botvinnik Variation 1 game 0W 0D 1L
Four Knights Game 1 game 0W 0D 1L
Scotch Variation Accepted 1 game 0W 0D 1L
(unspecified) 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
Blunders Top 4 of 123

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

2025.06.12 · 53. f5+ (−47.5% win chance) 1/2-1/2
Grabon-Hafid, Nordin
Grudzien, Jonatan
View game
2026.07.13 · 61... Kb5 (−47.4% win chance) 1/2-1/2
Grudzien, Jonatan
Wilczek, Kajetan
View game
2026.08.01 · 42... h3 (−46.6% win chance) 1-0
Grudzien, Jonatan
Cholewa, Maja
View game
2025.06.12 · 50. Ke4 (−45.2% win chance) 1/2-1/2
Grabon-Hafid, Nordin
Grudzien, Jonatan
View game
View blunders & mistakes
Games Showing all 25 games
Date Event Round Color Opponent Result Accuracy % First moves