Player profile
Pacheco Rosario, Juan C.
Dossier
14 of 15 games analyzed.
Accuracy: 83%
Opened e4: 2/2
Castled kingside: 3Same-side castling: 3Castled queenside: 2Opposite-side castling: 1Did not castle: 1
Played in the center: 3Played on the queenside: 2Fianchettoed kingside: 1Played on the kingside: 1
Initiated exchanges: 3Active pieces: 3Sacrificed material: 3Backward pawn: 2Space advantage: 2Isolated pawn: 2Kept the bishop pair: 1Played gambits: 1Avoided exchanges: 1
Openings
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As White 2 games 0W 1D 1L
Sicilian Defense 2 games 0W 1D 1L
Accelerated Dragon 1 game 0W 1D 0L
Modern Variation
1 game
0W
1D
0L
Dragon Variation 1 game 0W 0D 1L
Yugoslav Attack, Hungarian Dragon
1 game
0W
0D
1L
As Black 4 games 1W 0D 3L
Caro-Kann Defense 2 games 0W 0D 2L
Tartakower Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Advance Variation 1 game 0W 0D 1L
Bronstein Variation
1 game
0W
0D
1L
English Opening 1 game 0W 0D 1L
Symmetrical Variation 1 game 0W 0D 1L
Botvinnik System Reversed, with e3
1 game
0W
0D
1L
Queen's Gambit Declined 1 game 1W 0D 0L
Three Knights Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Blunders Top 4 of 89
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 15 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2025.12.20 | Round 9: Lopez Escobar, Jose David - Pacheco Rosario, Juan C. | 9.5 | 2025.12.20 Lopez Escobar, Jose David (7304862) (1941) | 0 | 89.60% | 1. c4 c5 2. Nc3 g6 3. g3 Bg7 | |
| 2025.12.18 | Round 7: Bernard, Omari - Pacheco Rosario, Juan C. | 7.7 | 2025.12.18 Bernard, Omari (7714912) (1694) | 0 | 90.40% | 1. e4 c6 2. d4 d5 3. Nc3 dxe4 | |
| 2025.12.18 | Round 6: Pacheco Rosario, Juan C. - Samuel Bisnath, Kael | 6.5 | 2025.12.18 Samuel Bisnath, Kael (7706880) (1940) | ½ | 85.70% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2025.12.16 | Round 3: Ramirez, Daniel - Pacheco Rosario, Juan C. | 3.7 | 2025.12.16 Ramirez, Daniel (8410259) (1800) | 0 | 66.70% | 1. e4 c6 2. Ne2 d5 3. e5 Bf5 | |
| 2025.12.15 | Round 2: Pacheco Rosario, Juan C. - Ramos Rodriguez, Daniel | 2.5 | 2025.12.15 Ramos Rodriguez, Daniel (6511635) (1910) | 0 | 67.80% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2025.12.15 | Round 1: Foreshaw, Jayden - Pacheco Rosario, Juan C. | 1.7 | 2025.12.15 Foreshaw, Jayden (7408560) (1863) | 1 | 97.60% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| FIDE World Youth U16 Chess Olympiad 2025 | 9 | Huertas Cabrera, Daniel (144411073) (1630) | 1 | 85.20% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | ||
| FIDE World Youth U16 Chess Olympiad 2025 | 8 | Majid, Zara (33100624) (1597) | 1 | 86.50% | 1. d4 Nf6 2. Bf4 d5 3. e3 e6 | ||
| Round 7: Bedi, Vaibhav - Pacheco Rosario, Juan C. | 7.30 | Bedi, Vaibhav (7501900) (1751) | 0 | 80.90% | 1. e4 e6 2. d4 d5 3. e5 c5 | ||
| Round 1: Ramirez Espino, Alessandro - Pacheco Rosario, Juan C. | 1.26 | Ramirez Espino, Alessandro (3880907) (1868) | 0 | 87.70% | 1. d4 Nf6 2. Nc3 d5 3. f3 e6 | ||
| FIDE World Youth U16 Chess Olympiad 2025 | 6 | Suarez Ortiz, Samuel Felipe (144437250) (1471) | 1 | 91.80% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 | ||
| Round 5: Pacheco Rosario, Juan C. - Fernandez Herrera, Andres | 5.38 | Fernandez Herrera, Andres (144410344) (1792) | 0 | 85.60% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| Round 4: James, Levi - Pacheco Rosario, Juan C. | 4.34 | James, Levi (7708726) (1724) | 0 | 80.20% | 1. e4 e6 2. d4 d5 3. exd5 exd5 | ||
| Round 2: Lizarazo Camelo, Sara Alejandra - Pacheco Rosario, Juan C. | 2.34 | Lizarazo Camelo, Sara Alejandra (144406150) (1716) | ½ | - | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | ||
| FIDE World Youth U16 Chess Olympiad 2025 | 3 | Hernandez Rincon, Samuel David (144435185) | 1 | 79.10% | 1. e4 c5 2. Nf3 Nc6 3. d4 e6 |