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Player profile

Olsen, William Fegth

Standard: 2038 Rapid: 2106 Blitz: 2060 (last updated 2026-11-02)
FIDE ID: 1571176 (view FIDE profile)
Federation: NOR Sex: M Birth Year: 2014 Age: 12
Title: — Women's title: — Other title: — FOA title: —
Games: 59 Wins: 26 (44%) Draws: 17 (29%) Losses: 15 (25%) Other: 1
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Dossier

47 of 59 games analyzed.

Accuracy: 88.4%
Opened e4: 13/21Opened d4: 5/21Opened Nf3: 3/21
Castled kingside: 34Same-side castling: 31Did not castle: 5Castled queenside: 2Opposite-side castling: 2
Fianchettoed kingside: 12Fianchettoed queenside: 11Played on the queenside: 10Played in the center: 9Played on the kingside: 9
Sacrificed material: 27Active pieces: 23Isolated pawn: 23Initiated exchanges: 23Kept the bishop pair: 21Space advantage: 20Backward pawn: 17Missed tactics: 10Avoided exchanges: 7Played gambits: 2
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Openings

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As White 27 games 12W 8D 7L
Sicilian Defense 8 games 5W 1D 2L
Alapin Variation 2 games 0W 0D 2L
Smith-Morra Declined 1 game 0W 0D 1L
Barmen Defense 1 game 0W 0D 1L
Classical Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Kalashnikov Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Kan Variation 1 game 1W 0D 0L
Modern Variation 1 game 1W 0D 0L
Prins Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Taimanov Variation 1 game 1W 0D 0L
Bastrikov Variation 1 game 1W 0D 0L
Delayed Alapin Variation 1 game 1W 0D 0L
with d6 1 game 1W 0D 0L
Ruy Lopez 4 games 1W 2D 1L
Morphy Defense 3 games 1W 2D 0L
Steinitz Deferred 1 game 0W 1D 0L
Neo-Arkhangelsk Variation 1 game 0W 1D 0L
Modern Steinitz Defense, Fianchetto Variation 1 game 1W 0D 0L
Closed 1 game 0W 0D 1L
Bogoljubow Variation 1 game 0W 0D 1L
Caro-Kann Defense 3 games 1W 0D 2L
Tartakower Variation 2 games 0W 0D 2L
(unspecified) 2 games 0W 0D 2L
Maróczy Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Queen's Pawn Game 3 games 1W 1D 1L
Chigorin Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Zukertort Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Symmetrical Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
French Defense 2 games 0W 2D 0L
Winawer Variation 1 game 0W 1D 0L
Alekhine-Maróczy Gambit 1 game 0W 1D 0L
Exchange Variation 1 game 0W 1D 0L
Monte Carlo Variation 1 game 0W 1D 0L
Catalan Opening 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Queen's Gambit Declined 1 game 1W 0D 0L
Exchange Variation 1 game 1W 0D 0L
Positional Variation 1 game 1W 0D 0L
Slav Defense 1 game 0W 1D 0L
Chebanenko Variation 1 game 0W 1D 0L
Advance System 1 game 0W 1D 0L
Scandinavian Defense 1 game 0W 1D 0L
Valencian Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Italian Game 1 game 1W 0D 0L
Giuoco Pianissimo 1 game 1W 0D 0L
Italian Four Knights Variation 1 game 1W 0D 0L
Indian Defense 1 game 1W 0D 0L
Budapest Gambit Accepted 1 game 1W 0D 0L
Main Line, Adler Variation 1 game 1W 0D 0L
English Opening 1 game 1W 0D 0L
Agincourt Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
As Black 26 games 13W 6D 6L
Sicilian Defense 12 games 6W 5D 1L
Lasker-Pelikan Variation 3 games 1W 2D 0L
(unspecified) 3 games 1W 2D 0L
Closed 2 games 2W 0D 0L
Traditional 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Four Knights Variation 2 games 1W 1D 0L
Exchange Variation 2 games 1W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Nyezhmetdinov-Rossolimo Attack 1 game 0W 0D 1L
Fianchetto Variation 1 game 0W 0D 1L
Kan Variation 1 game 1W 0D 0L
Knight Variation 1 game 1W 0D 0L
French Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Löwenthal Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
English Opening 3 games 1W 1D 1L
Anglo-Indian Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Anglo-Dutch Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
King's English Variation 1 game 0W 1D 0L
Kramnik-Shirov Counterattack 1 game 0W 1D 0L
French Defense 2 games 1W 0D 1L
Winawer Variation 1 game 0W 0D 1L
Bogoljubow Variation 1 game 0W 0D 1L
Advance Variation 1 game 1W 0D 0L
Paulsen Attack 1 game 1W 0D 0L
Nimzo-Indian Defense 1 game 1W 0D 0L
Normal Variation 1 game 1W 0D 0L
Botvinnik System 1 game 1W 0D 0L
Four Knights Game 1 game 0W 0D 1L
Scotch Variation Accepted 1 game 0W 0D 1L
Main Line 1 game 0W 0D 1L
Queen's Indian Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Rapport-Jobava System 1 game 0W 0D 0L
(unspecified) 1 game 0W 0D 0L
(unspecified) 1 game 0W 0D 0L
Indian Defense 1 game 1W 0D 0L
Accelerated London System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Pirc Defense 1 game 1W 0D 0L
Sveshnikov System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
King's Indian Defense 1 game 0W 0D 1L
Normal Variation 1 game 0W 0D 1L
Rare Defenses 1 game 0W 0D 1L
Dutch Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Zukertort Opening 1 game 0W 0D 1L
Kingside Fianchetto 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Blunders Top 4 of 237

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

2026.01.03 · 53. Qf4+ (−90.5% win chance) 1-0
Hetland, Even
Olsen, William Fegth
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2026.01.04 · 26... Be4 (−70.6% win chance) 0-1
Olsen, William Fegth
Arvola, Daniel
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????.??.?? · 51... Kd4 (−49.5% win chance) 1/2-1/2
Olsen, William Fegth
Xin, Lisa J.
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????.??.?? · 27... Qxa2 (−47.5% win chance) 1/2-1/2
Olsen, William Fegth
Xin, Lisa J.
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View blunders & mistakes
Games Showing all 59 games
Date Event Round Color Opponent Result Accuracy % First moves