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Cosquillo Castillo, Sebastian Isaac

Standard: 1471 Rapid: 1488 Blitz: 0 (last updated 2026-11-02)
FIDE ID: 3471438 (view FIDE profile)
Federation: CHI Sex: M Birth Year: 2012 Age: 14
Title: — Women's title: — Other title: — FOA title: —
Games: 5 Wins: 1 (20%) Draws: 0 (0%) Losses: 4 (80%)
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Dossier

4 of 5 games analyzed.

Accuracy: 81.6%
Opened e4: 2/2
Castled kingside: 3Same-side castling: 3Did not castle: 1
Played on the queenside: 3Played in the center: 2Fianchettoed queenside: 1Fianchettoed kingside: 1Played on the kingside: 1
Isolated pawn: 4Active pieces: 4Sacrificed material: 4Missed tactics: 3Space advantage: 3Initiated exchanges: 3Kept the bishop pair: 2Avoided exchanges: 1Played gambits: 1Backward pawn: 1
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Openings

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As White 2 games 0W 0D 2L
Sicilian Defense 1 game 0W 0D 1L
Closed 1 game 0W 0D 1L
Fianchetto Variation 1 game 0W 0D 1L
Caro-Kann Defense 1 game 0W 0D 1L
Accelerated Panov Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
As Black 3 games 1W 0D 2L
Queen's Gambit Declined 1 game 0W 0D 1L
Three Knights Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Ruy Lopez 1 game 1W 0D 0L
Nürnberg Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Scotch Game 1 game 0W 0D 1L
Schmidt Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Blunders Top 4 of 32

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

2026.06.11 · 23. hxg6 (−38.3% win chance) 0-1
Vasquez Santis, Marco Ignacio
Cosquillo Castillo, Sebastian Isaac
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2026.06.01 · 40. Nc4 (−24.9% win chance) 0-1
Campos Zambrano, Alexis Andres
Cosquillo Castillo, Sebastian Isaac
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2026.10.15 · 11... Bxa2 (−23.6% win chance) 1-0
Cosquillo Castillo, Sebastian Isaac
Valdes Berdichewsky, Lucas Gaspar
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2026.06.11 · 18. gxf6 (−22.7% win chance) 0-1
Vasquez Santis, Marco Ignacio
Cosquillo Castillo, Sebastian Isaac
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View blunders & mistakes
Games Showing all 5 games
Date Event Round Color Opponent Result Accuracy % First moves