Player profile
Rosero, Jefferson
Dossier
8 of 8 games analyzed.
Accuracy: 88.3%
Opened c4: 2/4Opened b4: 1/4Opened e4: 1/4
Castled kingside: 6Same-side castling: 5Opposite-side castling: 2Castled queenside: 1Did not castle: 1
Played on the kingside: 4Fianchettoed kingside: 3Played in the center: 3Fianchettoed queenside: 3
Sacrificed material: 6Initiated exchanges: 6Space advantage: 6Backward pawn: 5Missed tactics: 5Active pieces: 4Kept the bishop pair: 3Avoided exchanges: 1Isolated pawn: 1Played gambits: 1
Openings
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As White 4 games 1W 1D 2L
English Opening 2 games 0W 0D 2L
Anglo-Indian Defense 1 game 0W 0D 1L
Hedgehog System
1 game
0W
0D
1L
King's English Variation 1 game 0W 0D 1L
Two Knights Variation
1 game
0W
0D
1L
Polish Opening, with d5 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Sicilian Defense 1 game 1W 0D 0L
Smith-Morra Gambit 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
As Black 4 games 2W 1D 1L
Scandinavian Defense 2 games 2W 0D 0L
Anderssen Counterattack 1 game 1W 0D 0L
Orthodox Attack
1 game
1W
0D
0L
Mieses-Kotroc Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Benoni Defense 1 game 0W 1D 0L
Modern Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Modern Defense 1 game 0W 0D 1L
Standard Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Blunders Top 4 of 42
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 8 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2024.05.30 | Round 8: Zapata, Juan Carlos - Rosero, Jefferson | 2024.05.30 Zapata, Juan Carlos (4403479) (1894) | ½ | 92.60% | 1. d4 Nf6 2. c4 c5 3. d5 e6 | ||
| 2024.05.30 | Round 7: Rosero, Jefferson - Sanchez Barreto, Josue Efrain | 2024.05.30 Sanchez Barreto, Josue Efrain (4477324) (1794) | 0 | 81.60% | 1. c4 Nf6 2. Nc3 e6 3. e3 d5 | ||
| 2024.05.30 | Round 6: Herrera Jimenez, Mateo - Rosero, Jefferson | 2024.05.30 Herrera Jimenez, Mateo (144404018) (1845) | 1 | 98.40% | 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 | ||
| 2024.05.30 | Round 5: Rosero, Jefferson - Jimenez Salas, Maria Teresa | 2024.05.30 Jimenez Salas, Maria Teresa (3843866) (1838) | ½ | 85.80% | 1. b4 d5 2. Bb2 Nf6 3. a3 Bg4 | ||
| 2024.05.30 | Round 4: Meza Galvan, Victor Andres - Rosero, Jefferson | 2024.05.30 Meza Galvan, Victor Andres (4432061) (1724) | 1 | 94.90% | 1. e4 d5 2. exd5 Qxd5 3. d4 c6 | ||
| 2024.05.30 | Round 3: Rosero, Jefferson - Guevara Ruiz, Santiago Jose | 2024.05.30 Guevara Ruiz, Santiago Jose (6708870) (1806) | 0 | 77.40% | 1. c4 e5 2. Nc3 Nf6 3. e3 c6 | ||
| 2024.05.30 | Round 2: Quesada Perez, Luis Ernesto - Rosero, Jefferson | 2024.05.30 Quesada Perez, Luis Ernesto (3520773) (2536) | 0 | 84.60% | 1. e4 d6 2. d4 g6 3. Nc3 Bg7 | ||
| 2024.05.29 | Round 1: Rosero, Jefferson - Sanchez Bermudez, Jeronimo | 2024.05.29 Sanchez Bermudez, Jeronimo (4486935) (1662) | 1 | 91.40% | 1. e4 c5 2. d4 cxd4 3. c3 Nc6 |