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

De La Rosa Diaz, Osvaldo J.

Standard: 1633 Rapid: 1601 Blitz: 1656 (last updated 2026-10-02)
FIDE ID: 3109143 (view FIDE profile)
Federation: PUR Sex: M Birth Year: 2001 Age: 25
Title: — Women's title: — Other title: — FOA title: —
Games: 7 Wins: 3 (43%) Draws: 2 (29%) Losses: 2 (29%)
View all games
Dossier

7 of 7 games analyzed.

Accuracy: 87.5%
Opened c4: 1/3Opened Nf3: 1/3Opened d4: 1/3
Castled kingside: 5Same-side castling: 4Opposite-side castling: 3Castled queenside: 2
Played on the kingside: 3Fianchettoed queenside: 2Played on the queenside: 1Played in the center: 1
Backward pawn: 6Space advantage: 5Initiated exchanges: 5Active pieces: 5Sacrificed material: 3Kept the bishop pair: 2Avoided exchanges: 1
View full dossier
Openings

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

As White 3 games 2W 1D 0L
King's Indian Defense 2 games 1W 1D 0L
Semi-Averbakh System 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Normal Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Nimzo-Larsen Attack 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
As Black 4 games 1W 1D 2L
Caro-Kann Defense 2 games 0W 1D 1L
Exchange Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Tartakower Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Pirc Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Italian Game 1 game 0W 0D 1L
Classical Variation 1 game 0W 0D 1L
Giuoco Pianissimo 1 game 0W 0D 1L
Blunders Top 4 of 38

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

2024.07.25 · 46... Kg6 (−35.1% win chance) 1-0
De La Rosa Diaz, Osvaldo J.
Pacheco Calderon, Jarek
View game
2024.07.26 · 15. O-O-O (−28.1% win chance) 1/2-1/2
Patel, Yash
De La Rosa Diaz, Osvaldo J.
View game
2024.07.25 · 42... Rc8 (−25.1% win chance) 1-0
De La Rosa Diaz, Osvaldo J.
Pacheco Calderon, Jarek
View game
2024.07.26 · 31. Qe6+ (−24.3% win chance) 1/2-1/2
Patel, Yash
De La Rosa Diaz, Osvaldo J.
View game
View blunders & mistakes
Games Showing all 7 games
Date Event Round Color Opponent Result Accuracy % First moves