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Player profile

Jaferian, Koosha

Standard: 2260 Rapid: 2157 Blitz: 2296 (last updated 2026-11-02)
FIDE ID: 12507440 (view FIDE profile)
Federation: CAN Sex: M Birth Year: 1998 Age: 28
Title: FM Women's title: — Other title: — FOA title: —
Games: 78 Wins: 27 (35%) Draws: 28 (36%) Losses: 23 (29%)
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Dossier

70 of 78 games analyzed.

Accuracy: 91.4%
Opened e4: 21/24Opened d4: 3/24
Castled kingside: 34Same-side castling: 27Opposite-side castling: 12Castled queenside: 7Did not castle: 7
Played in the center: 18Played on the queenside: 12Played on the kingside: 10Fianchettoed kingside: 5Fianchettoed queenside: 5
Initiated exchanges: 35Active pieces: 31Sacrificed material: 29Kept the bishop pair: 26Isolated pawn: 22Space advantage: 22Backward pawn: 19Missed tactics: 11Played gambits: 8Avoided exchanges: 5
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Openings

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As White 28 games 11W 10D 7L
Sicilian Defense 12 games 5W 4D 3L
Alapin Variation 6 games 2W 2D 2L
(unspecified) 4 games 2W 1D 1L
Barmen Defense 1 game 0W 1D 0L
Stoltz Attack 1 game 0W 0D 1L
Najdorf Variation 2 games 1W 1D 0L
Amsterdam Variation 2 games 1W 1D 0L
Closed 2 games 1W 0D 1L
Traditional 2 games 1W 0D 1L
Taimanov Variation 1 game 1W 0D 0L
Bastrikov Variation, English Attack 1 game 1W 0D 0L
Delayed Alapin Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
French Defense 3 games 0W 1D 2L
Paulsen Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Tarrasch Variation 1 game 0W 0D 1L
Open System, Euwe-Keres Line 1 game 0W 0D 1L
Schlechter Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Caro-Kann Defense 2 games 0W 2D 0L
Endgame Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Two Knights Attack 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Queen's Gambit Declined 2 games 0W 0D 2L
Harrwitz Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Italian Game 1 game 0W 1D 0L
Scotch Gambit 1 game 0W 1D 0L
Max Lange Attack 1 game 0W 1D 0L
Nimzowitsch Defense 1 game 0W 1D 0L
Williams Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Scandinavian Defense 1 game 1W 0D 0L
Modern Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Nimzo-Larsen Attack 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Scotch Game 1 game 1W 0D 0L
Mieses Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Modern Defense 1 game 1W 0D 0L
Standard Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Dutch Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Czech Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Indian Defense 1 game 0W 1D 0L
Accelerated London System 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
As Black 25 games 12W 8D 5L
Caro-Kann Defense 8 games 5W 2D 1L
Tartakower Variation 4 games 3W 1D 0L
(unspecified) 4 games 3W 1D 0L
Advance Variation 2 games 1W 0D 1L
Botvinnik-Carls Defense 2 games 1W 0D 1L
Classical Variation 1 game 1W 0D 0L
Flohr Variation 1 game 1W 0D 0L
Exchange Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
King's Indian Attack 2 games 0W 1D 1L
Double Fianchetto 2 games 0W 1D 1L
(unspecified) 2 games 0W 1D 1L
Queen's Pawn Game 2 games 0W 1D 1L
London System 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Symmetrical Variation 1 game 0W 1D 0L
Pseudo-Catalan 1 game 0W 1D 0L
English Opening 2 games 0W 1D 1L
Symmetrical Variation 2 games 0W 1D 1L
Anti-Benoni Variation, Spielmann Defense 1 game 0W 1D 0L
Rubinstein Variation 1 game 0W 0D 1L
Sicilian Defense 1 game 0W 1D 0L
Taimanov Variation 1 game 0W 1D 0L
Szén Variation 1 game 0W 1D 0L
Nimzo-Indian Defense 1 game 1W 0D 0L
St. Petersburg Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Indian Defense 1 game 0W 0D 1L
Wade-Tartakower Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Queen's Indian Defense 1 game 1W 0D 0L
Fianchetto Variation 1 game 1W 0D 0L
Check Variation, Intermezzo Line 1 game 1W 0D 0L
Scandinavian Defense 1 game 1W 0D 0L
Modern Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Philidor Defense 1 game 1W 0D 0L
Lion Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Nimzo-Larsen Attack 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Ruy Lopez 1 game 0W 1D 0L
Morphy Defense 1 game 0W 1D 0L
Anderssen Variation 1 game 0W 1D 0L
Four Knights Game 1 game 1W 0D 0L
Spanish Variation 1 game 1W 0D 0L
Rubinstein Variation 1 game 1W 0D 0L
Réti Opening 1 game 0W 1D 0L
Réti Accepted 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Vienna Game 1 game 1W 0D 0L
Mieses Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Blunders Top 4 of 268

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

2026.05.16 · 109. Rc7 (−47.5% win chance) 1/2-1/2
Qian, Eric
Jaferian, Koosha
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2025.10.19 · 32... gxh3 (−46.9% win chance) 1-0
Jaferian, Koosha
Zhou, Lily
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? · 9... Rg8 (−46.8% win chance) 1-0
Jaferian, Koosha
Deepak, Laksshana
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2024.04.01 · 30... Bxb4 (−40.2% win chance) 1-0
Jaferian, Koosha
Piasetski, Leon
View game
View blunders & mistakes
Games Showing all 78 games
Date Event Round Color Opponent Result Accuracy % First moves