Player profile
Pena Marquez, Juanita Sofia
Dossier
22 of 36 games analyzed.
Accuracy: 81.6%
Opened e4: 10/10
Castled kingside: 19Same-side castling: 13Opposite-side castling: 3Did not castle: 2Castled queenside: 1
Played in the center: 7Fianchettoed kingside: 5Fianchettoed queenside: 5Played on the kingside: 5Played on the queenside: 5
Backward pawn: 12Space advantage: 12Kept the bishop pair: 11Missed tactics: 11Active pieces: 11Isolated pawn: 9Sacrificed material: 9Avoided exchanges: 8Initiated exchanges: 8Played gambits: 5
Openings
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As White 16 games 2W 1D 11L
Sicilian Defense 4 games 1W 0D 2L
Classical Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Flohr Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Dragon Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
O'Kelly Variation 1 game 0W 0D 0L
Normal System, Taimanov Line
1 game
0W
0D
0L
French Defense 3 games 1W 0D 2L
Advance Variation 1 game 1W 0D 0L
Nimzowitsch System
1 game
1W
0D
0L
Exchange Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Knight Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Caro-Kann Defense 2 games 0W 0D 1L
Exchange Variation 1 game 0W 0D 0L
(unspecified)
1 game
0W
0D
0L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Ruy Lopez 2 games 0W 0D 2L
Berlin Defense 1 game 0W 0D 1L
Improved Steinitz Defense
1 game
0W
0D
1L
Morphy Defense 1 game 0W 0D 1L
Modern Steinitz Defense
1 game
0W
0D
1L
Italian Game 2 games 0W 0D 2L
Hungarian Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Giuoco Pianissimo 1 game 0W 0D 1L
Normal
1 game
0W
0D
1L
Owen Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Philidor Defense 1 game 0W 1D 0L
Lion Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Pirc Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
As Black 20 games 5W 2D 12L
Sicilian Defense 13 games 4W 0D 8L
Najdorf Variation 7 games 2W 0D 4L
English Attack
2 games
0W
0D
2L
Yates Variation
1 game
0W
0D
0L
Lipnitsky Attack
1 game
1W
0D
0L
Adams Attack
1 game
1W
0D
0L
Zagreb Variation
1 game
0W
0D
1L
Opocensky Variation
1 game
0W
0D
1L
Modern Variations 4 games 1W 0D 3L
(unspecified)
4 games
1W
0D
3L
Bowdler Attack 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Closed 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
English Opening 3 games 1W 1D 1L
Symmetrical Variation 1 game 1W 0D 0L
Duchamp Variation
1 game
1W
0D
0L
Anglo-Indian Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
King's English Variation 1 game 0W 0D 1L
Reversed Closed Sicilian
1 game
0W
0D
1L
King's Indian Defense 2 games 0W 1D 1L
Fianchetto Variation 2 games 0W 1D 1L
Debrecen Defense
1 game
0W
0D
1L
(unspecified)
1 game
0W
1D
0L
Indian Defense 1 game 0W 0D 1L
Przepiorka Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
London System 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Blunders Top 4 of 143
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 36 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.06.27 | Round 6: Llano Colorado, Kriss Nicolle - Pena Marquez, Juanita Sofia | 6.17 | 2026.06.27 Llano Colorado, Kriss Nicolle (144439903) (1742) | 0 | 88.30% | 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 | |
| 2026.06.27 | Round 2: Polania Naranjo, Laura Camila - Pena Marquez, Juanita Sofia | 2.17 | 2026.06.27 Polania Naranjo, Laura Camila (144421354) (1594) | 0 | - | 1. e4 c5 2. Nf3 d6 3. g3 Nf6 | |
| 2026.06.20 | Round 7: Libardo Tamayo Vasquez - Pena Marquez, Juanita Sofia | 7.36 | 2026.06.20 Tamayo Vasquez, Libardo (144485018) | * | - | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.06.20 | Round 6: Pena Marquez, Juanita Sofia - Angulo Ricardo, Milton | 6.29 | 2026.06.20 Angulo Ricardo, Milton (4497651) (1737) | * | - | 1. e4 c6 2. d4 d5 3. exd5 cxd5 | |
| 2026.06.20 | Round 5: Gutierrez Vera, Erick Sneider - Pena Marquez, Juanita Sofia | 5.37 | 2026.06.20 Gutierrez Vera, Erick Sneider (144467591) | 1 | 88.20% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.06.20 | Round 4: Pena Marquez, Juanita Sofia - Davila Uzcategui, Kelleger Alexan | 4.31 | 2026.06.20 Davila Uzcategui, Kelleger Alexan (144480482) (1698) | 0 | 79.10% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 | |
| 2026.06.20 | Round 3: Jade Gabriela Arismendi Barragan - Pena Marquez, Juanita Sofia | 3.39 | 2026.06.20 Jade Gabriela Arismendi Barragan | 1 | 94.40% | 1. e4 c5 2. Bc4 d6 3. Qh5 e6 | |
| 2026.06.20 | Round 2: Pena Marquez, Juanita Sofia - Estrella Becerra, Fernando | 2.26 | 2026.06.20 Estrella Becerra, Fernando (4420900) (1947) | 0 | 88.60% | 1. e4 b6 2. d4 Bb7 3. Nc3 e6 | |
| 2026.06.20 | Round 1: Ceballos, Julio Cesar - Pena Marquez, Juanita Sofia | 1.24 | 2026.06.20 Ceballos, Julio Cesar (4415531) (1813) | 1 | - | 1. c4 g6 2. g3 Bg7 3. Bg2 c5 | |
| 2026.06.20 | Round 1: Ceballos, Julio Cesar - Pena Marquez, Juanita Sofia | 1.25 | 2026.06.20 Ceballos, Julio Cesar (4415531) (1813) | 0 | 92.40% | 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 | |
| 2026.05.24 | Round 7: Celis Vargas, Walter Enrique - Pena Marquez, Juanita Sofia | 7.44 | 2026.05.24 Celis Vargas, Walter Enrique (4426533) (1772) | 0 | 84.50% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.05.24 | Round 6: Pena Marquez, Juanita Sofia - Ardila Pena, Wilfran | 6.52 | 2026.05.24 Ardila Pena, Wilfran (144478429) (1425) | 1 | - | 1. e4 e6 2. d4 d5 3. e5 c5 | |
| 2026.05.24 | Round 5: Buritica Diaz, Winner Fair - Pena Marquez, Juanita Sofia | 5.48 | 2026.05.24 Buritica Diaz, Winner Fair (144483414) | ½ | 87.70% | 1. c4 Nf6 2. e3 g6 3. Ne2 Bg7 | |
| 2026.05.24 | Round 4: Pena Marquez, Juanita Sofia - Guerra, Alvaro | 4.36 | 2026.05.24 Guerra, Alvaro (4440366) (1987) | 0 | 89.90% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.05.24 | Round 3: Alvarez Guzman, Joseph Emmanuel - Pena Marquez, Juanita Sofia | 3.39 | 2026.05.24 Alvarez Guzman, Joseph Emmanuel (4498747) (1690) | 0 | - | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.05.24 | Round 1: Ortegon Villacorte, Linda Daniela - Pena Marquez, Juanita Sofia | 1.25 | 2026.05.24 Ortegon Villacorte, Linda Daniela (4407113) (1906) | 0 | 89.70% | 1. e4 c5 2. Nc3 d6 3. f4 Nc6 | |
| 2026.04.20 | Round 7: Pena Marquez, Juanita Sofia - Sanabria Bello, Javier | 7.35 | 2026.04.20 Sanabria Bello, Javier (144477716) (1619) | 0 | - | 1. e4 c6 2. Nf3 d5 3. exd5 cxd5 | |
| 2026.04.20 | Round 6: Jimenez Pirajan, Samuel Esteban - Pena Marquez, Juanita Sofia | 6.30 | 2026.04.20 Jimenez Pirajan, Samuel Esteban (144428790) (1795) | 0 | - | 1. e4 c5 2. Nf3 d6 3. b3 Nc6 | |
| 2026.04.20 | Round 5: Pena Marquez, Juanita Sofia - Sierra Daza, Edinson | 5.38 | 2026.04.20 Sierra Daza, Edinson (144458754) (1761) | 1 | - | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2026.04.20 | Round 4: Fonseca Guarin, John Henry - Pena Marquez, Juanita Sofia | 4.32 | 2026.04.20 Fonseca Guarin, John Henry (144407858) (1679) | ½ | - | 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 | |
| 2026.04.20 | Round 3: Pena Marquez, Juanita Sofia - Becerra, Sergio | 3.31 | 2026.04.20 Becerra Cuervo, Sergio (144453442) (1720) | 0 | - | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.04.20 | Round 2: Albarracin Garcia, Jhon Jairo - Pena Marquez, Juanita Sofia | 2.34 | 2026.04.20 Albarracin Garcia, Jhon Jairo (144445873) (1690) | 1 | - | 1. e4 c5 2. Nf3 d6 3. Bc4 Nc6 | |
| 2026.04.19 | Round 1: Pena Marquez, Juanita Sofia - Leguizamo Cortes, Laura Juliana | 1.24 | 2026.04.19 Leguizamo Cortes, Laura Juliana (144403186) (1853) | * | - | 1. e4 c5 2. Nf3 a6 3. d4 cxd4 | |
| 2026.03.28 | Round 5: Pena Marquez, Juanita Sofia - Kelleger Alexander Davila Uzcategui | 5.45 | 2026.03.28 Kelleger Alexander Davila Uzcategui | 0 | 90.00% | 1. e4 e6 2. Nf3 d5 3. exd5 exd5 | |
| 2026.03.28 | Round 4: Davila Ariza, Daniel - Pena Marquez, Juanita Sofia | 4.35 | 2026.03.28 Davila Ariza, Daniel (4451562) (1648) | 0 | - | 1. d4 Nf6 2. Bf4 g6 3. Nf3 Bg7 | |
| 2026.03.28 | Round 3: Pena Marquez, Juanita Sofia - Albarracin Garcia, Jhon Jairo | 3.37 | 2026.03.28 Albarracin Garcia, Jhon Jairo (144445873) (1702) | ½ | 78.20% | 1. e4 Nf6 2. Nc3 e5 3. Nf3 d6 | |
| 2026.03.28 | Round 2: Torres Bobadilla, Johan Sebastian - Pena Marquez, Juanita Sofia | 2.46 | 2026.03.28 Torres Bobadilla, Johan Sebastian (144402929) (1601) | 1 | 63.40% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.03.28 | Round 1: Pena Marquez, Juanita Sofia - Castillo, Samir | 1.32 | 2026.03.28 Castillo, Samir (22797530) (1858) | 0 | 69.90% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2025.12.07 | Round 3: Pena Marquez, Juanita Sofia - Herrera Catrilef, Alison | 3.35 | 2025.12.07 Herrera Catrilef, Alison (3463419) (1754) | 0 | 83.90% | 1. e4 d6 2. Nf3 Nf6 3. Nc3 e5 | |
| 2025.12.06 | Round 2: Quevedo Bonilla, Paula Thaliana - Pena Marquez, Juanita Sofia | 2.33 | 2025.12.06 Quevedo Bonilla, Paula Thaliana (4492498) (1834) | 0 | 65.10% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2025.03.30 | Round 5: Pena Marquez, Juanita Sofia - Vargas Sanchez, German Gonzalo | 5.46 | 2025.03.30 Vargas Sanchez, German Gonzalo (4489055) (1730) | 0 | 69.70% | 1. e4 e6 2. Nf3 c6 3. d4 d5 | |
| 2025.03.30 | Round 2: Luna Ruiz, Alvaro Jose - Pena Marquez, Juanita Sofia | 2.47 | 2025.03.30 Luna Ruiz, Alvaro Jose (144455275) (1657) | 0 | 77.00% | 1. c4 e5 2. Nc3 Nc6 3. g3 Nf6 | |
| 2025.02.23 | Round 2: Pena Marquez, Juanita Sofia - Ocanto Diquez, Victor Alejandro | 2.34 | 2025.02.23 Ocanto Diquez, Victor Alejandro (144449089) (1774) | 0 | 77.40% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 | |
| 2024.11.24 | Round 4: Guiza Vargas, Angel David - Pena Marquez, Juanita Sofia | 4.24 | 2024.11.24 Guiza Vargas, Angel David (144446551) (1767) | 0 | 69.60% | 1. e4 c5 2. Nf3 d6 3. Bc4 e6 | |
| 2024.11.24 | Round 3: Rosero, Hugo Alberto - Pena Marquez, Juanita Sofia | 3.22 | 2024.11.24 Rosero, Hugo Alberto (4410769) | 0 | 82.80% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.11.24 | Round 1: Pena Marquez, Juanita Sofia - Castillo, Samir | 1.18 | 2024.11.24 Castillo, Samir (22797530) (1804) | 0 | 86.00% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 |