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Øystein Bøyum Fossum

Games: 8 Wins: 3 (38%) Draws: 5 (63%) Losses: 0 (0%)
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Dossier

8 of 8 games analyzed.

Accuracy: 95.4%
Opened Nf3: 3/3
Castled kingside: 4Same-side castling: 4Did not castle: 2Castled queenside: 1Opposite-side castling: 1
Played on the kingside: 5Fianchettoed kingside: 3Played on the queenside: 1Played in the center: 1
Active pieces: 6Initiated exchanges: 6Backward pawn: 4Sacrificed material: 4Kept the bishop pair: 3Space advantage: 2Isolated pawn: 1Played gambits: 1Avoided exchanges: 1
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Openings

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As White 3 games 0W 3D 0L
English Opening 3 games 0W 3D 0L
Anglo-Indian Defense 2 games 0W 2D 0L
King's Knight Variation 2 games 0W 2D 0L
Agincourt Defense 1 game 0W 1D 0L
Neo-Catalan Declined 1 game 0W 1D 0L
As Black 4 games 3W 1D 0L
French Defense 1 game 1W 0D 0L
McCutcheon Variation 1 game 1W 0D 0L
Exchange Variation 1 game 1W 0D 0L
Queen's Gambit Accepted 1 game 0W 1D 0L
Central Variation 1 game 0W 1D 0L
Modern Defense 1 game 0W 1D 0L
Dutch Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
English Opening 1 game 1W 0D 0L
King's English Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Blunders Top 4 of 13

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

2026.06.02 · 11. Qxe4 (−16.8% win chance) 1/2-1/2
Bernhoftsen-Banks, Alec
Øystein Bøyum Fossum
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2026.06.04 · 23. Rg2 (−14.9% win chance) 1/2-1/2
Torbjørn Valvåg
Øystein Bøyum Fossum
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2023.03.05 · 44... Kg5 (−10.4% win chance) 1/2-1/2
Øystein Bøyum Fossum
Johannes Haug
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2026.06.03 · 20... Na6 (−8.8% win chance) 0-1
Øystein Bøyum Fossum
Bjerke, Richard
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Games Showing all 8 games
Date Event Round Color Opponent Result Accuracy % First moves