Player profile

Haarsma, Syb

Standard: 0 Rapid: 1638 Blitz: 1828 (last updated 2026-11-02)
FIDE ID: 40120953 (view FIDE profile)
Federation: NED Sex: M Birth Year: 2014 Age: 12
Title: — Women's title: — Other title: — FOA title: —
Games: 9 Wins: 2 (22%) Draws: 4 (44%) Losses: 3 (33%)
Dossier

5 of 9 games analyzed.

Accuracy: 84.2%
Opened Nf3: 2/2
Castled kingside: 3Same-side castling: 3Did not castle: 2
Fianchettoed queenside: 3Fianchettoed kingside: 2Played in the center: 2Played on the kingside: 1Played on the queenside: 1
Initiated exchanges: 5Kept the bishop pair: 4Backward pawn: 4Space advantage: 2Active pieces: 2Missed tactics: 2Isolated pawn: 1
Openings

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As White 4 games 2W 1D 1L
King's Indian Attack 3 games 1W 1D 1L
(unspecified) 3 games 1W 1D 1L
(unspecified) 3 games 1W 1D 1L
Zukertort Opening 1 game 1W 0D 0L
Black Mustang Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
As Black 5 games 0W 3D 2L
Sicilian Defense 3 games 0W 2D 1L
Taimanov Variation 2 games 0W 2D 0L
Bastrikov Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Kan Variation 1 game 0W 0D 1L
Maróczy Bind, Réti Variation 1 game 0W 0D 1L
Nimzo-Indian Defense 1 game 0W 0D 1L
St. Petersburg Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
English Opening 1 game 0W 1D 0L
Carls-Bremen System 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Blunders Top 4 of 27

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

2026.05.14 · 26... Qg3+ (−48.7% win chance) 1/2-1/2
Haarsma, Syb
Botter, Jeroen
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2026.05.15 · 13. Be4 (−33.8% win chance) 1/2-1/2
Plukkel, Guus
Haarsma, Syb
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2026.05.16 · 42... Kxd5 (−29.4% win chance) 1/2-1/2
Haarsma, Syb
Li, Vince
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2026.05.16 · 47... exf4 (−28.3% win chance) 1-0
Haarsma, Syb
Van Rossem, Jules
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Games Showing all 9 games
Date Event Round Color Opponent Result Accuracy % First moves