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Player profile

de Boer, Willem

Standard: 1812 Rapid: 1593 Blitz: 1691 (last updated 2026-11-02)
FIDE ID: 343427251 (view FIDE profile)
Federation: ENG Sex: M Birth Year: 2014 Age: 12
Title: — Women's title: — Other title: — FOA title: —
Games: 25 Wins: 6 (24%) Draws: 12 (48%) Losses: 7 (28%)
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Dossier

24 of 25 games analyzed.

Accuracy: 88.2%
Opened d4: 5/9Opened Nf3: 2/9Opened b3: 1/9Opened e4: 1/9
Same-side castling: 14Castled kingside: 12Castled queenside: 3
Played in the center: 8Fianchettoed queenside: 4Played on the queenside: 4Fianchettoed kingside: 4Played on the kingside: 1
Kept the bishop pair: 10Active pieces: 10Initiated exchanges: 10Sacrificed material: 7Backward pawn: 7Missed tactics: 4Space advantage: 4Avoided exchanges: 4Isolated pawn: 4Played gambits: 1
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Openings

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As White 9 games 1W 5D 3L
Queen's Pawn Game 3 games 1W 1D 1L
Accelerated London System 2 games 1W 1D 0L
(unspecified) 2 games 1W 1D 0L
London System 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Zukertort Opening 2 games 0W 2D 0L
Nimzo-Larsen Variation 2 games 0W 2D 0L
(unspecified) 2 games 0W 2D 0L
Indian Defense 1 game 0W 1D 0L
Accelerated London System 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Nimzo-Larsen Attack 1 game 0W 0D 1L
Classical Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Sicilian Defense 1 game 0W 0D 1L
Grand Prix Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Horwitz Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
As Black 7 games 2W 4D 1L
Scandinavian Defense 4 games 0W 3D 1L
Main Line 4 games 0W 3D 1L
(unspecified) 4 games 0W 3D 1L
Sicilian Defense 2 games 1W 1D 0L
Closed 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Accelerated Dragon 1 game 1W 0D 0L
Maróczy Bind 1 game 1W 0D 0L
Pirc Defense 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
Quiet System, Chigorin Line 1 game 1W 0D 0L
Blunders Top 4 of 116

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

? · 38. f3 (−63.5% win chance) 0-1
Helsby, Matthew
de Boer, Willem
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2025.07.31 · 45. Kd3 (−47.5% win chance) 1/2-1/2
Wang, Hantin
de Boer, Willem
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? · 60. Kd4 (−47.4% win chance) 0-1
Helsby, Matthew
de Boer, Willem
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2026.11.01 · 34. Rd1 (−45.8% win chance) 1/2-1/2
Penarrubia Blasco, Jose Alfredo
de Boer, Willem
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Games Showing all 25 games
Date Event Round Color Opponent Result Accuracy % First moves