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Player profile

O`brien, Jer

Standard: 1656 Rapid: 0 Blitz: 0 (last updated 2026-10-02)
FIDE ID: 2535610 (view FIDE profile)
Federation: IRL Sex: M Birth Year: 2009 Age: 17
Title: — Women's title: — Other title: — FOA title: —
Games: 5 Wins: 0 (0%) Draws: 2 (40%) Losses: 3 (60%)
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Dossier

5 of 5 games analyzed.

Accuracy: 88.5%
Opened e4: 3/3
Castled kingside: 4Same-side castling: 3Castled queenside: 1
Played in the center: 4Played on the kingside: 1
Active pieces: 5Space advantage: 4Backward pawn: 3Sacrificed material: 3Initiated exchanges: 3Isolated pawn: 3Avoided exchanges: 2Missed tactics: 2Kept the bishop pair: 1
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Openings

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As White 3 games 0W 1D 2L
Pirc Defense 1 game 0W 0D 1L
Austrian Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Sicilian Defense 1 game 0W 0D 1L
Alapin Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Caro-Kann Defense 1 game 0W 1D 0L
Advance Variation 1 game 0W 1D 0L
Short Variation 1 game 0W 1D 0L
As Black 2 games 0W 1D 1L
Caro-Kann Defense 2 games 0W 1D 1L
Exchange Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Forgacs Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Blunders Top 4 of 34

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

2025.07.28 · 37. Nh6 (−38.1% win chance) 1/2-1/2
Semenov, Igor
O`brien, Jer
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2025.07.28 · 70. Rb6 (−35.3% win chance) 1/2-1/2
Semenov, Igor
O`brien, Jer
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2025.07.29 · 37... Qe6 (−19.2% win chance) 1-0
O`brien, Jer
Booth, Zander
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2025.07.29 · 24. c3 (−18.5% win chance) 0-1
McGrath, Ethan
O`brien, Jer
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Games Showing all 5 games
Date Event Round Color Opponent Result Accuracy % First moves