Player profile

Moreno Sierra, Juan David

Standard: 1635 Rapid: 1912 Blitz: 1774 (last updated 2026-11-02)
FIDE ID: 4497015 (view FIDE profile)
Federation: COL Sex: M Birth Year: 2005 Age: 21
Title: — Women's title: — Other title: — FOA title: —
Games: 98 Wins: 50 (51%) Draws: 8 (8%) Losses: 39 (40%) Other: 1
Dossier

72 of 98 games analyzed.

Accuracy: 87.6%
Opened d4: 21/36Opened e4: 10/36Opened Nf3: 4/36Opened c4: 1/36
Castled kingside: 55Same-side castling: 48Did not castle: 12Opposite-side castling: 6Castled queenside: 3
Played on the kingside: 26Played in the center: 23Played on the queenside: 10Fianchettoed queenside: 9Fianchettoed kingside: 9
Active pieces: 54Sacrificed material: 47Space advantage: 43Initiated exchanges: 42Backward pawn: 36Kept the bishop pair: 34Missed tactics: 27Isolated pawn: 22Avoided exchanges: 10Played gambits: 9
Openings

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As White 50 games 24W 5D 21L
Queen's Pawn Game 16 games 6W 1D 9L
Accelerated London System 9 games 4W 1D 4L
(unspecified) 7 games 3W 1D 3L
Steinitz Countergambit 2 games 1W 0D 1L
London System 5 games 1W 0D 4L
(unspecified) 3 games 0W 0D 3L
with e6 2 games 1W 0D 1L
Chigorin Variation 2 games 1W 0D 1L
(unspecified) 2 games 1W 0D 1L
Indian Defense 13 games 6W 0D 7L
Accelerated London System 12 games 6W 0D 6L
(unspecified) 12 games 6W 0D 6L
Wade-Tartakower Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Sicilian Defense 5 games 2W 2D 1L
Alapin Variation 4 games 2W 2D 0L
(unspecified) 3 games 2W 1D 0L
Barmen Defense 1 game 0W 1D 0L
Closed 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Italian Game 3 games 3W 0D 0L
Two Knights Defense 2 games 2W 0D 0L
Max Lange Attack 1 game 1W 0D 0L
Fritz Variation 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
French Defense 2 games 2W 0D 0L
King's Indian Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Chigorin Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
London System 2 games 1W 0D 1L
(unspecified) 2 games 1W 0D 1L
(unspecified) 2 games 1W 0D 1L
English Opening 2 games 0W 0D 2L
Agincourt Defense 2 games 0W 0D 2L
Neo-Catalan Declined 1 game 0W 0D 1L
Wimpy System 1 game 0W 0D 1L
Scandinavian Defense 1 game 1W 0D 0L
Schiller-Pytel Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Zukertort Opening 1 game 0W 0D 1L
Dutch Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Petrov's Defense 1 game 0W 1D 0L
Classical Attack 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Benoni Defense 1 game 1W 0D 0L
Old Benoni 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Horwitz Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Pirc Defense 1 game 1W 0D 0L
Austrian Attack 1 game 1W 0D 0L
Weiss Variation 1 game 1W 0D 0L
Queen's Gambit Declined 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
As Black 46 games 26W 3D 16L
Queen's Pawn Game 8 games 4W 2D 1L
Zukertort Variation 4 games 1W 2D 1L
(unspecified) 4 games 1W 2D 1L
London System 1 game 0W 0D 0L
(unspecified) 1 game 0W 0D 0L
Barry Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Symmetrical Variation 1 game 1W 0D 0L
Pseudo-Catalan 1 game 1W 0D 0L
Stonewall Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Sicilian Defense 8 games 4W 0D 4L
O'Kelly Variation 4 games 3W 0D 1L
(unspecified) 1 game 0W 0D 1L
Venice System 1 game 1W 0D 0L
Yerevan System 1 game 1W 0D 0L
Normal System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Closed 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Hyperaccelerated Dragon 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Smith-Morra Gambit Accepted 1 game 0W 0D 1L
Fianchetto Defense 1 game 0W 0D 1L
Caro-Kann Defense 7 games 4W 0D 3L
Exchange Variation 2 games 2W 0D 0L
(unspecified) 2 games 2W 0D 0L
Advance Variation 2 games 0W 0D 2L
Botvinnik-Carls Defense 2 games 0W 0D 2L
Tartakower Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Breyer Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Classical Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Alekhine Defense 5 games 4W 0D 1L
Exchange Variation 3 games 2W 0D 1L
(unspecified) 3 games 2W 0D 1L
Four Pawns Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Scandinavian Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
English Opening 4 games 1W 0D 3L
Anglo-Indian Defense 3 games 1W 0D 2L
(unspecified) 1 game 0W 0D 1L
Queen's Knight Variation 1 game 0W 0D 1L
Hedgehog System 1 game 1W 0D 0L
King's English Variation 1 game 0W 0D 1L
Four Knights Variation, Fianchetto Line, with Nb6 1 game 0W 0D 1L
Slav Defense 3 games 1W 0D 2L
Quiet Variation 2 games 0W 0D 2L
Schallopp Defense 2 games 0W 0D 2L
Exchange Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
King's Indian Defense 2 games 2W 0D 0L
Orthodox Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Fianchetto Variation 1 game 1W 0D 0L
Panno Variation 1 game 1W 0D 0L
Queen's Gambit Declined 2 games 1W 1D 0L
Exchange Variation 1 game 0W 1D 0L
Reshevsky Variation 1 game 0W 1D 0L
Orthodox Defense 1 game 1W 0D 0L
Botvinnik Variation 1 game 1W 0D 0L
London System 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
French Defense 1 game 1W 0D 0L
Advance Variation 1 game 1W 0D 0L
Wade Variation 1 game 1W 0D 0L
Réti Opening 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Indian Defense 1 game 1W 0D 0L
Przepiorka Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Semi-Slav Defense 1 game 0W 0D 1L
Marshall Gambit 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Horwitz Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Dutch Defense 1 game 1W 0D 0L
Hopton Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Blunders Top 4 of 398

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

2026.03.15 · 32. Qd7 (−78.3% win chance) 1/2-1/2
Mendez Rodriguez, Andres David
Moreno Sierra, Juan David
View game
2026.06.15 · 56... Rg1+ (−62.3% win chance) 0-1
Moreno Sierra, Juan David
Conde Granada, Alain Camilo
View game
2026.05.03 · 65... Rc2 (−47.5% win chance) 0-1
Moreno Sierra, Juan David
Villalobos Gaitan, Fernando
View game
2026.05.03 · 67... Rc1+ (−47.5% win chance) 0-1
Moreno Sierra, Juan David
Villalobos Gaitan, Fernando
View game
Games Showing all 98 games
Date Event Round Color Opponent Result Accuracy % First moves