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Hafthorsson, Jon Ulfur

Standard: 1869 Rapid: 1637 Blitz: 1734 (last updated 2026-11-02)
FIDE ID: 2323206 (view FIDE profile)
Federation: ISL Sex: M Birth Year: 2002 Age: 24
Title: — Women's title: — Other title: IA FOA title: —
Games: 23 Wins: 7 (30%) Draws: 4 (17%) Losses: 12 (52%)
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Dossier

10 of 23 games analyzed.

Accuracy: 89.4%
Opened d4: 3/4Opened b3: 1/4
Castled kingside: 7Same-side castling: 6Opposite-side castling: 1Castled queenside: 1Did not castle: 1
Played on the queenside: 5Fianchettoed kingside: 5Played in the center: 3Fianchettoed queenside: 1Played on the kingside: 1
Active pieces: 9Initiated exchanges: 8Space advantage: 7Sacrificed material: 6Isolated pawn: 5Backward pawn: 4Missed tactics: 4Kept the bishop pair: 4Played gambits: 1
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Openings

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As White 9 games 4W 1D 4L
Rapport-Jobava System 2 games 0W 0D 2L
(unspecified) 2 games 0W 0D 2L
(unspecified) 2 games 0W 0D 2L
Pirc Defense 2 games 2W 0D 0L
Classical Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Kholmov System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Queen's Pawn Game 1 game 1W 0D 0L
Chigorin Variation 1 game 1W 0D 0L
Shaviliuk Gambit 1 game 1W 0D 0L
Indian Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Rapport-Jobava System, with e6 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Nimzo-Larsen Attack 1 game 0W 1D 0L
Modern Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Horwitz Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
As Black 12 games 3W 3D 6L
Sicilian Defense 5 games 1W 2D 2L
Accelerated Dragon 2 games 1W 0D 1L
Maróczy Bind 2 games 1W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Nyezhmetdinov-Rossolimo Attack 1 game 0W 1D 0L
Fianchetto Variation 1 game 0W 1D 0L
Alapin Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
King's Indian Defense 4 games 2W 1D 1L
(unspecified) 3 games 1W 1D 1L
(unspecified) 3 games 1W 1D 1L
Fianchetto Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
King's Indian Attack 1 game 0W 0D 1L
Symmetrical Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Pirc Defense 1 game 0W 0D 1L
Kholmov System 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Italian Game 1 game 0W 0D 1L
Classical Variation 1 game 0W 0D 1L
Greco Gambit, Dubov Italian 1 game 0W 0D 1L
Blunders Top 4 of 49

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

2024.08.13 · 33. Rd3 (−44.2% win chance) 0-1
Deruelle Sala, Albert
Hafthorsson, Jon Ulfur
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2024.08.18 · 19... Qb4 (−24.2% win chance) 1-0
Hafthorsson, Jon Ulfur
Karkovic, Mate
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2023.03.31 · 13... Qd7 (−23.5% win chance) 1-0
Hafthorsson, Jon Ulfur
Botez, Alexandra
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2024.10.30 · 14... b5 (−22.8% win chance) 0-1
Hafthorsson, Jon Ulfur
Lindberg Hansen, Noa
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View blunders & mistakes
Games Showing all 23 games
Date Event Round Color Opponent Result Accuracy % First moves