Chess Games DB
Find player games & weaknesses
Log in
Player profile

Sierra Brian

Standard: 1696 Rapid: 0 Blitz: 0 (last updated 2026-10-02)
FIDE ID: 6707823 (view FIDE profile)
Federation: ESA Sex: M Birth Year: 1979 Age: 47
Title: — Women's title: — Other title: — FOA title: —
Games: 7 Wins: 2 (29%) Draws: 4 (57%) Losses: 1 (14%)
View all games
Dossier

4 of 7 games analyzed.

Accuracy: 86.1%
Opened c4: 2/2
Castled kingside: 2Same-side castling: 2Did not castle: 2
Fianchettoed kingside: 4Played on the queenside: 3Played on the kingside: 1Fianchettoed queenside: 1
Backward pawn: 4Sacrificed material: 3Missed tactics: 3Initiated exchanges: 3Kept the bishop pair: 2Active pieces: 2Space advantage: 2Avoided exchanges: 1Isolated pawn: 1
View full dossier Analyze this player's games
Openings

Click "+" to add that group to the games list below. Multiple groups can be added at once.

As White 3 games 1W 2D 0L
English Opening 2 games 1W 1D 0L
King's English Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Symmetrical Variation 1 game 0W 1D 0L
Ultra-Symmetrical Variation 1 game 0W 1D 0L
King's Indian Attack 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
As Black 4 games 1W 2D 1L
English Opening 1 game 0W 0D 1L
Great Snake Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Hungarian Opening 1 game 0W 1D 0L
Symmetrical Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Modern Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Caro-Kann Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Blunders Top 4 of 38

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

2025.09.06 · 47. Rd7 (−45.4% win chance) 1/2-1/2
Perez Nayeli
Sierra Brian
View game
2025.09.06 · 38. Rha1 (−40.4% win chance) 1/2-1/2
Perez Nayeli
Sierra Brian
View game
2025.09.06 · 48. b7 (−29% win chance) 1/2-1/2
Perez Nayeli
Sierra Brian
View game
2025.09.06 · 35. Kf2 (−26.9% win chance) 1/2-1/2
Perez Nayeli
Sierra Brian
View game
View blunders & mistakes
Games Showing all 7 games
Date Event Round Color Opponent Result Accuracy % First moves