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Player profile

Sigvaldsen, Sebastian

Standard: 1837 Rapid: 1809 Blitz: 1886 (last updated 2026-11-02)
FIDE ID: 1569660 (view FIDE profile)
Federation: NOR Sex: M Birth Year: 2010 Age: 16
Title: — Women's title: — Other title: — FOA title: —
Games: 77 Wins: 23 (30%) Draws: 26 (34%) Losses: 28 (36%)
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Dossier

76 of 77 games analyzed.

Accuracy: 87.4%
Opened d4: 33/38Opened e4: 5/38
Castled kingside: 69Same-side castling: 65Did not castle: 6Opposite-side castling: 1Castled queenside: 1
Played in the center: 26Played on the queenside: 21Played on the kingside: 19Fianchettoed queenside: 11Fianchettoed kingside: 9
Active pieces: 54Sacrificed material: 45Space advantage: 42Initiated exchanges: 42Backward pawn: 40Isolated pawn: 26Kept the bishop pair: 24Avoided exchanges: 24Missed tactics: 22Played gambits: 9
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Openings

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As White 38 games 14W 13D 11L
Queen's Gambit Declined 9 games 1W 3D 5L
Modern Variation 3 games 0W 2D 1L
Knight Defense 3 games 0W 2D 1L
Neo-Orthodox Variation 2 games 0W 0D 2L
Main Line 2 games 0W 0D 2L
Janowski Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Harrwitz Attack 1 game 0W 0D 1L
Two Knights Defense 1 game 0W 0D 1L
Vienna Variation 1 game 0W 1D 0L
Quiet Variation 1 game 0W 1D 0L
Marshall Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Indian Defense 4 games 0W 3D 1L
London System 2 games 0W 2D 0L
(unspecified) 2 games 0W 2D 0L
Czech-Indian 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Normal Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Nimzo-Indian Defense 3 games 2W 0D 1L
Leningrad Variation 2 games 1W 0D 1L
(unspecified) 2 games 1W 0D 1L
Three Knights Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Benoni Defense 3 games 1W 0D 2L
Classical Variation 2 games 1W 0D 1L
New York Variation 1 game 1W 0D 0L
(unspecified) 1 game 0W 0D 1L
Semi-Benoni 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Caro-Kann Defense 2 games 1W 1D 0L
Bronstein-Larsen Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Exchange Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Queen's Pawn Game 2 games 1W 1D 0L
London System 2 games 1W 1D 0L
(unspecified) 2 games 1W 1D 0L
King's Indian Defense 2 games 1W 1D 0L
Normal Variation 2 games 1W 1D 0L
King's Knight Variation 2 games 1W 1D 0L
Slav Defense 2 games 0W 1D 1L
Czech Variation 1 game 0W 1D 0L
Dutch Variation 1 game 0W 1D 0L
Exchange Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Semi-Slav Defense 2 games 2W 0D 0L
Chigorin Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Botvinnik Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
French Defense 2 games 0W 2D 0L
Exchange Variation 2 games 0W 2D 0L
(unspecified) 2 games 0W 2D 0L
Old Indian Defense 2 games 1W 0D 1L
Janowski Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Normal Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Queen's Indian Defense 1 game 1W 0D 0L
Kasparov Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Sicilian Defense 1 game 1W 0D 0L
Four Knights Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Queen's Indian Accelerated 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Pseudo Queen's Indian Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Queen's Gambit Accepted 1 game 1W 0D 0L
Classical Defense 1 game 1W 0D 0L
Rubinstein Variation 1 game 1W 0D 0L
As Black 39 games 9W 13D 17L
French Defense 13 games 2W 3D 8L
Advance Variation 3 games 0W 1D 2L
Paulsen Attack 1 game 0W 0D 1L
Nimzowitsch Attack 1 game 0W 1D 0L
(unspecified) 1 game 0W 0D 1L
Classical Variation 3 games 1W 0D 2L
Steinitz Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Normal Variation 1 game 1W 0D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Tarrasch Variation 1 game 0W 0D 1L
Closed Variation 1 game 0W 0D 1L
Steinitz Variation 1 game 0W 0D 1L
Boleslavsky Variation 1 game 0W 0D 1L
Queen's Knight 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Two Knights Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Exchange Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Winawer Variation 1 game 0W 0D 1L
Advance Variation 1 game 0W 0D 1L
Queen's Gambit Declined 7 games 2W 3D 2L
Exchange Variation 3 games 0W 2D 1L
Positional Variation 3 games 0W 2D 1L
Semi-Tarrasch Defense 1 game 0W 1D 0L
with e3 1 game 0W 1D 0L
Normal Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Ragozin Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Orthodox Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
English Opening 5 games 0W 5D 0L
Anglo-Indian Defense 3 games 0W 3D 0L
(unspecified) 2 games 0W 2D 0L
Hedgehog System 1 game 0W 1D 0L
Symmetrical Variation 2 games 0W 2D 0L
Duchamp Variation 1 game 0W 1D 0L
Ultra-Symmetrical Variation 1 game 0W 1D 0L
Sicilian Defense 3 games 2W 0D 1L
Alapin Variation 1 game 1W 0D 0L
Barmen Defense 1 game 1W 0D 0L
Hyperaccelerated Dragon 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Open 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Tarrasch Defense 3 games 0W 1D 2L
Symmetrical Variation 3 games 0W 1D 2L
(unspecified) 3 games 0W 1D 2L
Queen's Pawn Game 3 games 2W 0D 1L
London System 2 games 2W 0D 0L
with e6 2 games 2W 0D 0L
Colle System 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Bishop's Opening 1 game 0W 0D 1L
Vienna Hybrid 1 game 0W 0D 1L
Spielmann Attack 1 game 0W 0D 1L
Neo-Grünfeld Defense 1 game 0W 0D 1L
Classical Variation 1 game 0W 0D 1L
Original Defense 1 game 0W 0D 1L
Semi-Slav Defense 1 game 0W 0D 1L
Main Line 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Nimzo-Indian Defense 1 game 0W 1D 0L
Normal Variation 1 game 0W 1D 0L
Gligoric System 1 game 0W 1D 0L
Torre Attack 1 game 1W 0D 0L
Classical Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Blunders Top 4 of 360

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

2026.10.04 · 52. Rc3 (−91.8% win chance) 1/2-1/2
Aadhvika A
Sigvaldsen, Sebastian
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2026.07.06 · 28... Rh8 (−73.2% win chance) 1-0
Sigvaldsen, Sebastian
Vestjord, Harald Christian
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2025.04.15 · 20... Nd7 (−61.8% win chance) 1-0
Sigvaldsen, Sebastian
Neukamm, Christian
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2024.03.31 · 34. Nh4 (−58.6% win chance) 0-1
Holten, Terje
Sigvaldsen, Sebastian
View game
View blunders & mistakes
Games Showing all 77 games
Date Event Round Color Opponent Result Accuracy % First moves