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Player profile

Alonso Castillo, Sergio

Standard: 2022 Rapid: 2016 Blitz: 0 (last updated 2026-10-02)
FIDE ID: 2206129 (view FIDE profile)
Federation: ESP Sex: M Birth Year: 1973 Age: 53
Title: — Women's title: — Other title: — FOA title: —
Games: 1 Wins: 0 (0%) Draws: 0 (0%) Losses: 1 (100%)
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Dossier

1 of 1 game analyzed.

Accuracy: 81.5%
Did not castle: 1
Fianchettoed queenside: 1
Kept the bishop pair: 1Backward pawn: 1Space advantage: 1Active pieces: 1Avoided exchanges: 1Missed tactics: 1
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Openings

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As White 0 games 0W 0D 0L

No games as White in this range.

As Black 1 game 0W 0D 1L
Czech Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Blunders Top 4 of 6

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

2025.07.06 · 29... Nxe5 (−36.4% win chance) 1-0
Alonso Castillo, Sergio
Martin Barcelo, Carles
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2025.07.06 · 26... e5 (−20.4% win chance) 1-0
Alonso Castillo, Sergio
Martin Barcelo, Carles
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2025.07.06 · 24... Qa6 (−8.4% win chance) 1-0
Alonso Castillo, Sergio
Martin Barcelo, Carles
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2025.07.06 · 11... e6 (−5.8% win chance) 1-0
Alonso Castillo, Sergio
Martin Barcelo, Carles
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View blunders & mistakes
Games Showing all 1 game
Date Event Round Color Opponent Result Accuracy % First moves