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Sierra Pena, Alberto

Standard: 1679 Rapid: 1592 Blitz: 1531 (last updated 2026-11-02)
FIDE ID: 54537240 (view FIDE profile)
Federation: ESP Sex: M Birth Year: 2011 Age: 15
Title: — Women's title: — Other title: — FOA title: —
Games: 4 Wins: 0 (0%) Draws: 3 (75%) Losses: 1 (25%)
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Dossier

4 of 4 games analyzed.

Accuracy: 84.3%
Opened d4: 1/1
Did not castle: 2Castled kingside: 2Same-side castling: 2
Played in the center: 3Played on the queenside: 2Fianchettoed queenside: 2
Space advantage: 4Sacrificed material: 3Active pieces: 2Missed tactics: 2Isolated pawn: 2Kept the bishop pair: 2Played gambits: 1Initiated exchanges: 1Avoided exchanges: 1
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Openings

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As White 1 game 0W 1D 0L
Indian Defense 1 game 0W 1D 0L
Colle System 1 game 0W 1D 0L
King's Indian Variation 1 game 0W 1D 0L
As Black 3 games 0W 2D 1L
French Defense 2 games 0W 1D 1L
Advance Variation 2 games 0W 1D 1L
Wade Variation 1 game 0W 1D 0L
Milner-Barry Gambit, Main Line 1 game 0W 0D 1L
Queen's Gambit Declined 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Blunders Top 4 of 21

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

2025.09.10 · 49... Kc6 (−60.6% win chance) 1-0
Sierra Pena, Alberto
Puebla Herrero, Angel
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2025.09.10 · 25... Kc5 (−45.9% win chance) 1-0
Sierra Pena, Alberto
Puebla Herrero, Angel
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2025.09.08 · 45. Kd3 (−42.7% win chance) 1/2-1/2
Gonzalez Alonso, Gorka
Sierra Pena, Alberto
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2025.09.10 · 22... Qc4 (−30.8% win chance) 1-0
Sierra Pena, Alberto
Puebla Herrero, Angel
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Games Showing all 4 games
Date Event Round Color Opponent Result Accuracy % First moves