Player profile

Mareco, Sandro

Standard: 2542 Rapid: 2566 Blitz: 2545 (last updated 2026-11-02)

FIDE ID: 112275 (view FIDE profile)

Federation: ARG Sex: M Birth Year: 1987 Age: 39

Title: GM Women's title: — Other title: — FOA title: —

Games: 215 Wins: 104 (48%) Draws: 82 (38%) Losses: 25 (12%) Other: 4

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Dossier

194 of 215 games analyzed.

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Openings

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As White 76 games 44W 23D 8L

Sicilian Defense 14 games 8W 4D 2L

Kan Variation 4 games 3W 0D 1L

Polugaevsky Variation 2 games 2W 0D 0L

Modern Variation 1 game 0W 0D 1L

Wing Attack, Fianchetto Variation 1 game 1W 0D 0L

Nyezhmetdinov-Rossolimo Attack 3 games 3W 0D 0L

Fianchetto Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Fianchetto Variation, Gufeld Gambit 1 game 1W 0D 0L

Najdorf Variation 2 games 0W 2D 0L

(unspecified) 1 game 0W 1D 0L

Yates Variation 1 game 0W 1D 0L

Taimanov Variation 1 game 0W 0D 1L

Bastrikov Variation 1 game 0W 0D 1L

Accelerated Dragon 1 game 0W 1D 0L

Maróczy Bind 1 game 0W 1D 0L

Hyperaccelerated Dragon 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

French Variation 1 game 1W 0D 0L

Normal 1 game 1W 0D 0L

Moscow Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Catalan Opening 9 games 3W 5D 1L

Open Defense 5 games 1W 3D 1L

Classical Line 3 games 1W 1D 1L

(unspecified) 1 game 0W 1D 0L

Modern Sharp Variation 1 game 0W 1D 0L

(unspecified) 2 games 2W 0D 0L

Closed 2 games 0W 2D 0L

(unspecified) 2 games 0W 2D 0L

Italian Game 7 games 4W 2D 0L

Classical Variation 3 games 1W 2D 0L

Giuoco Pianissimo 3 games 1W 2D 0L

Two Knights Defense 2 games 1W 0D 0L

Modern Bishop's Opening 2 games 1W 0D 0L

Giuoco Pianissimo 2 games 2W 0D 0L

Normal 2 games 2W 0D 0L

Queen's Gambit Declined 6 games 2W 3D 1L

Ragozin Defense 2 games 0W 1D 1L

(unspecified) 1 game 0W 1D 0L

Alekhine Variation 1 game 0W 0D 1L

Exchange Variation 2 games 1W 1D 0L

Positional Variation 2 games 1W 1D 0L

Queen's Knight Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Charousek Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

English Opening 6 games 3W 2D 1L

Symmetrical Variation 3 games 1W 1D 1L

(unspecified) 2 games 0W 1D 1L

Anti-Benoni Variation, Spielmann Defense 1 game 1W 0D 0L

King's English Variation 1 game 0W 1D 0L

Three Knights System 1 game 0W 1D 0L

Neo-Catalan 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Agincourt Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Caro-Kann Defense 5 games 4W 1D 0L

Advance Variation 4 games 4W 0D 0L

Botvinnik-Carls Defense 2 games 2W 0D 0L

Tal Variation 1 game 1W 0D 0L

Short Variation 1 game 1W 0D 0L

Exchange Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

King's Indian Attack 5 games 3W 1D 1L

(unspecified) 2 games 2W 0D 0L

Sicilian Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Keres Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Symmetrical Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

King's Indian Defense 4 games 4W 0D 0L

Fianchetto Variation 3 games 3W 0D 0L

Larsen Defense 2 games 2W 0D 0L

Classical Variation 1 game 1W 0D 0L

Orthodox Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Queen's Indian Defense, with e3 2 games 2W 0D 0L

(unspecified) 2 games 2W 0D 0L

Petrov's Defense 2 games 2W 0D 0L

(unspecified) 1 game 1W 0D 0L

Classical Attack 1 game 1W 0D 0L

Mason-Showalter Variation 1 game 1W 0D 0L

Queen's Indian Defense 2 games 2W 0D 0L

Fianchetto Variation 1 game 1W 0D 0L

Sämisch Variation 1 game 1W 0D 0L

Kasparov-Petrosian Variation 1 game 1W 0D 0L

Marco Defense 1 game 1W 0D 0L

Semi-Slav Defense 1 game 1W 0D 0L

Stoltz Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Ruy Lopez 1 game 1W 0D 0L

Berlin Defense 1 game 1W 0D 0L

Anti-Berlin Variation 1 game 1W 0D 0L

Benoni Defense 1 game 1W 0D 0L

Classical Variation 1 game 1W 0D 0L

New York Variation 1 game 1W 0D 0L

Pirc Defense 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Scandinavian Defense 1 game 1W 0D 0L

Bronstein Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Rubinstein Opening 1 game 0W 0D 1L

Bogoljubow Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Modern Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

King's Indian Attack, with e6 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Kangaroo Defense 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Lion Defense 1 game 0W 1D 0L

Lion's Jaw 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Queen's Pawn Game 1 game 0W 0D 1L

Rossolimo Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Queen's Gambit Accepted 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Zukertort Opening 1 game 1W 0D 0L

Dutch Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

French Defense 1 game 0W 1D 0L

Classical Variation 1 game 0W 1D 0L

Shirov-Anand Variation 1 game 0W 1D 0L

As Black 77 games 33W 31D 12L

Sicilian Defense 10 games 6W 2D 2L

Closed 3 games 3W 0D 0L

(unspecified) 3 games 3W 0D 0L

Najdorf Variation 2 games 1W 0D 1L

(unspecified) 1 game 0W 0D 1L

Adams Attack 1 game 1W 0D 0L

French Variation 2 games 2W 0D 0L

(unspecified) 2 games 2W 0D 0L

Nyezhmetdinov-Rossolimo Attack 1 game 0W 0D 1L

Fianchetto Variation 1 game 0W 0D 1L

Scheveningen Variation 1 game 0W 1D 0L

Classical Variation 1 game 0W 1D 0L

Delayed Alapin Variation 1 game 0W 1D 0L

with d6 1 game 0W 1D 0L

Nimzo-Indian Defense 10 games 1W 6D 2L

Normal Variation 4 games 1W 3D 0L

Ragozin Variation 1 game 0W 1D 0L

Schlechter Defense 1 game 0W 1D 0L

Classical Defense 1 game 1W 0D 0L

(unspecified) 1 game 0W 1D 0L

Sämisch Variation 3 games 0W 1D 2L

(unspecified) 2 games 0W 1D 1L

O'Kelly Variation 1 game 0W 0D 1L

Classical Variation 2 games 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Noa Variation 1 game 0W 0D 0L

St. Petersburg Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Ruy Lopez 9 games 2W 7D 0L

Closed 6 games 1W 5D 0L

Martinez Variation 2 games 0W 2D 0L

Flohr System 2 games 1W 1D 0L

Anti-Marshall 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Morphy Defense 3 games 1W 2D 0L

Anderssen Variation 1 game 0W 1D 0L

Tarrasch Variation 1 game 0W 1D 0L

Neo-Arkhangelsk Variation 1 game 1W 0D 0L

Caro-Kann Defense 6 games 2W 3D 1L

Tartakower Variation 2 games 0W 2D 0L

(unspecified) 2 games 0W 2D 0L

Exchange Variation 2 games 2W 0D 0L

Rubinstein Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Two Knights Attack 1 game 0W 0D 1L

Mindeno Variation, Exchange Line 1 game 0W 0D 1L

Advance Variation 1 game 0W 1D 0L

Botvinnik-Carls Defense 1 game 0W 1D 0L

Queen's Gambit Declined 6 games 3W 3D 0L

Exchange Variation 5 games 2W 3D 0L

Positional Variation 4 games 1W 3D 0L

Reshevsky Variation 1 game 1W 0D 0L

Three Knights Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

English Opening 5 games 3W 2D 0L

King's English Variation 3 games 1W 2D 0L

(unspecified) 2 games 1W 1D 0L

Kramnik-Shirov Counterattack 1 game 0W 1D 0L

Anglo-Indian Defense 1 game 1W 0D 0L

King's Indian Formation 1 game 1W 0D 0L

Agincourt Defense 1 game 1W 0D 0L

Neo-Catalan Declined 1 game 1W 0D 0L

Indian Defense 5 games 2W 1D 2L

Anti-Nimzo-Indian 3 games 2W 0D 1L

(unspecified) 3 games 2W 0D 1L

Dzindzi-Indian Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Normal Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Italian Game 5 games 3W 1D 1L

Classical Variation 3 games 2W 0D 1L

Giuoco Pianissimo 3 games 2W 0D 1L

Two Knights Defense 1 game 1W 0D 0L

Modern Bishop's Opening 1 game 1W 0D 0L

Giuoco Piano 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Four Knights Game 4 games 1W 2D 1L

Spanish Variation 2 games 1W 1D 0L

(unspecified) 2 games 1W 1D 0L

(unspecified) 1 game 0W 0D 1L

Scotch Variation Accepted 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

King's Indian Attack 3 games 1W 1D 1L

(unspecified) 2 games 0W 1D 1L

Sicilian Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Semi-Slav Defense 2 games 2W 0D 0L

Normal Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Bogo-Indian Defense 2 games 1W 1D 0L

Wade-Smyslov Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Retreat Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Queen's Pawn Game 2 games 1W 0D 1L

London System 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Symmetrical Variation 1 game 1W 0D 0L

Pseudo-Catalan 1 game 1W 0D 0L

King's Indian Defense 1 game 1W 0D 0L

Orthodox Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Zukertort Opening 1 game 0W 0D 1L

Sicilian Invitation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Benoni Defense 1 game 1W 0D 0L

Fianchetto Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Philidor Defense 1 game 0W 1D 0L

Lion Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Polish Opening 1 game 1W 0D 0L

Outflank 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

Trompowsky Attack 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

French Defense 1 game 0W 1D 0L

Tarrasch Variation 1 game 0W 1D 0L

Open System, Main Line 1 game 0W 1D 0L

Blunders Top 4 of 490

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

2025.03.10 · 56... Ke5 (−95.1% win chance) 0-1

Mareco, Sandro

Rodriguez Vila, Andres

Engine View game

2023.08.16 · 44... Qxd7 (−88.3% win chance) 1-0

Mareco, Sandro

Matamoros Franco, Carlos S.

Engine View game

2025.12.13 · 55... a2 (−82.4% win chance) 1-0

Mareco, Sandro

Silva, Luca

Engine View game

2025.12.10 · 31. Bd3 (−57.2% win chance) 0-1

Flores, Diego

Mareco, Sandro

Engine View game

View blunders & mistakes

Games Showing all 215 games

Date	Event	Round	Opponent	Result	Accuracy %	First moves
2026.09.27	Olymp 2026 Open	11.87	2026.09.27 Sipila, Vilka (505455) (2474)	1	89.10%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2026.09.26	Olymp 2026 Open	10.403	2026.09.26 Can, Isik (6383742) (2569)	½	84.60%	1. e4 c6 2. d4 d5 3. Nd2 dxe4
2026.09.25	Olymp 2026 Open	9.86	2026.09.25 Sousa, Andre Ventura (1917617) (2451)	1	88.90%	1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6
2026.09.24	Olymp 2026 Open	8.207	2026.09.24 Wong, Zhenyong Jayden (5821975) (2360)	1	99.30%	1. e4 c6 2. d4 d5 3. e5 Bf5
2026.09.23	Olymp 2026 Open	7.94	2026.09.23 Quizon, Daniel (5217911) (2414)	½	97.30%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2026.09.21	Olymp 2026 Open	5.87	2026.09.21 Quirhuayo Chumbe, German Gonzalo (3813509) (2381)	0	85.80%	1. e4 c6 2. Nc3 d5 3. Nf3 Bg4
2026.09.19	Olymp 2026 Open	4.407	2026.09.19 Sargsyan, Shant (13306766) (2630)	0	88.90%	1. Nf3 d5 2. g3 c5 3. Bg2 Nf6
2026.09.18	Olymp 2026 Open	3.106	2026.09.18 Ahmed Hassan (12200590) (2190)	1	95.80%	1. Nf3 Nf6 2. c4 g6 3. g3 Bg7
2026.09.16	Olymp 2026 Open	1.107	2026.09.16 Oluka Robert Mcligeyo (10814647) (2138)	1	97.40%	1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+
2026.06.10	Round 11: Fier, Alexandr - Mareco, Sandro	11.2	2026.06.10 Fier, Alexandr (2107139) (2553)	½	-	1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6
2026.06.08	Round 9: Mareco, Sandro - Jimenez Garcia, Emmanuel	9.2	2026.06.08 Jimenez Garcia, Emmanuel (6504779) (2349)	1	97.90%	1. d4 Nf6 2. c4 e6 3. g3 Bb4+
2026.06.07	Round 8: Diaz Perez, Michel Alejandro - Mareco, Sandro	8.5	2026.06.07 Diaz Perez, Michel Alejandro (3517179) (2425)	1	97.50%	1. d4 Nf6 2. c4 e6 3. Nc3 d5
2026.06.06	Round 7: Mareco, Sandro - Berdayes Ason, Dylan Isidro	7.5	2026.06.06 Berdayes Ason, Dylan Isidro (3516016) (2460)	½	96.90%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2026.06.05	Round 6: Lopez Rayo, Santiago - Mareco, Sandro	6.3	2026.06.05 Lopez Rayo, Santiago (4455665) (2418)	½	95.60%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2026.06.05	Round 5: Mareco, Sandro - Delgado Romero, Marco	5.6	2026.06.05 Delgado Romero, Marco (3832457) (2373)	1	96.10%	1. d4 Nf6 2. c4 c5 3. d5 e6
2026.06.04	Round 4: Baules Rodriguez, Jorge Luis - Mareco, Sandro	4.12	2026.06.04 Baules Rodriguez, Jorge Luis (6600247) (2283)	1	87.90%	1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+
2026.06.04	Round 3: Mareco, Sandro - Rios Gomez, Cristhian Camilo	3.3	2026.06.04 Rios Gomez, Cristhian Camilo (4403940) (2405)	0	-	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2026.06.04	Round 1: Mareco, Sandro - Monroy Lopez, Gustavo Adolfo	1.5	2026.06.04 Monroy Lopez, Gustavo Adolfo (7306431) (2062)	1	-	1. e4 c5 2. Nf3 Nc6 3. Bb5 g6
2026.06.03	Round 2: Torres Rosas, Luis Carlos - Mareco, Sandro	2.4	2026.06.03 Torres Rosas, Luis Carlos (5111080) (2312)	1	94.40%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2026.06.02	Round 10: Mareco, Sandro - Shankland, Sam	10.1	2026.06.02 Shankland, Sam (2004887) (2647)	½	95.00%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2025.12.15	Round 8: Slipak, Sergio - Mareco, Sandro	8.5	2025.12.15 Slipak, Sergio (100250) (2374)	1	95.60%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2025.12.14	Round 7: Mareco, Sandro - Shirov, Alexei	7.4	2025.12.14 Shirov, Alexei (2209390) (2610)	½	98.70%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2025.12.13	Round 6: Oro, Faustino - Mareco, Sandro	6.2	2025.12.13 Oro, Faustino (20000197) (2503)	½	99.00%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2025.12.13	Round 11: Flores, Diego - Mareco, Sandro	11.2	2025.12.13 Flores, Diego (108049) (2582)	1	94.60%	1. Nf3 d5 2. g3 Nf6 3. Bg2 e6
2025.12.13	Round 10: Shirov, Alexei - Mareco, Sandro	10.3	2025.12.13 Shirov, Alexei (2209390) (2579)	½	-	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2025.12.13	Round 9: Mareco, Sandro - Granda Zuniga, Julio E	9.4	2025.12.13 Granda Zuniga, Julio E (3800024) (2624)	1	-	1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6
2025.12.13	Round 8: Silva, Luca - Mareco, Sandro	8.2	2025.12.13 Silva, Luca (147370) (2242)	0	57.20%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2025.12.13	Round 7: Mareco, Sandro - Tempone, Marcelo	7.5	2025.12.13 Tempone, Marcelo (100269) (2388)	1	95.50%	1. e4 e5 2. Nf3 Nf6 3. d3 d6
2025.12.13	Round 6: Carcamo, Matias - Mareco, Sandro	6.6	2025.12.13 Carcamo, Matias (115541) (2314)	1	92.90%	1. e4 c5 2. Nc3 Nc6 3. g3 g6
2025.12.12	Round 4: Della Morte, German - Mareco, Sandro	4.3	2025.12.12 Della Morte, German (113522) (2306)	1	88.20%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6
2025.12.12	Round 3: Mareco, Sandro - Benedetti, Julio	3.6	2025.12.12 Benedetti, Julio (172545) (2327)	1	85.50%	1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7
2025.12.12	Round 2: De Dovitiis, Alejo - Mareco, Sandro	2.7	2025.12.12 De Dovitiis, Alejo (101400) (2257)	1	94.70%	1. e4 c6 2. d4 d5 3. exd5 cxd5
2025.12.12	Round 1: Mareco, Sandro - Bursztyn, Ioshua	1.7	2025.12.12 Bursztyn, Ioshua (157767) (2063)	1	97.70%	1. d4 Nf6 2. c4 e6 3. g3 Bb4+
2025.12.12	Round 5: Mareco, Sandro - Darcyl, Tomas	5.4	2025.12.12 Darcyl, Tomas (100404) (2360)	½	97.00%	1. c4 e5 2. Nc3 Nc6 3. Nf3 g6
2025.12.11	Round 5: Mareco, Sandro - Tari, Aryan	5.1	2025.12.11 Tari, Aryan (1510045) (2590)	0	82.40%	1. c4 c5 2. Nf3 Nf6 3. e3 g6
2025.12.11	Round 4: Schnaider, Ilan - Mareco, Sandro	4.3	2025.12.11 Schnaider, Ilan (169013) (2402)	0	83.10%	1. e4 c5 2. Nf3 Nc6 3. Bb5 g6
2025.12.10	Round 3: Mareco, Sandro - Flores, Diego	3.3	2025.12.10 Flores, Diego (108049) (2567)	0	74.90%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2025.12.09	Round 2: Granda Zuniga, Julio E - Mareco, Sandro	2.4	2025.12.09 Granda Zuniga, Julio E (3800024) (2624)	½	95.50%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2025.12.08	Round 1: Mareco, Sandro - Cheparinov, Ivan	1.5	2025.12.08 Cheparinov, Ivan (2905540) (2625)	½	98.40%	1. d4 d5 2. c4 e6 3. Nc3 Nf6
2025.12.06	Round 9: Mareco, Sandro - Tari, Aryan	9.1	2025.12.06 Tari, Aryan (1510045) (2636)	½	99.10%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2025.11.14	Round 6: Oro, Faustino - Mareco, Sandro	6.1	2025.11.14 Oro, Faustino (20000197) (2487)	½	93.00%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2025.11.14	Round 5: Mareco, Sandro - Oro, Faustino	5.1	2025.11.14 Oro, Faustino (20000197) (2487)	0	82.60%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2025.11.14	Round 4: Oro, Faustino - Mareco, Sandro	4.1	2025.11.14 Oro, Faustino (20000197) (2495)	½	96.10%	1. d4 Nf6 2. c4 e6 3. Nc3 d5
2025.11.14	Round 3: Mareco, Sandro - Oro, Faustino	3.1	2025.11.14 Oro, Faustino (20000197) (2495)	½	85.00%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2025.11.14	Round 2: Oro, Faustino - Mareco, Sandro	2.1	2025.11.14 Oro, Faustino (20000197) (2495)	½	99.00%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2025.11.14	Round 1: Mareco, Sandro - Oro, Faustino	1.1	2025.11.14 Oro, Faustino (20000197) (2495)	½	89.90%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2025.10.20	Round 9: Mareco, Sandro - Di Berardino, Diego Rafael	9.1	2025.10.20 Di Berardino, Diego Rafael (2105446) (2444)	1	94.60%	1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6
2025.10.20	Round 8: Gomez, Carlos David - Mareco, Sandro	8.1	2025.10.20 Gomez, Carlos David (114669) (2412)	1	96.00%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2025.10.20	Round 7: Mareco, Sandro - Silva, Caio Henrique Angelico	7.1	2025.10.20 Silva, Caio Henrique Angelico (22777210) (2264)	*	-	1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6
2025.10.20	Round 6: Flores Quillas, Diego Saul Rodri - Mareco, Sandro	6.1	2025.10.20 Flores Quillas, Diego Saul Rodri (3822508) (2395)	½	-	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2025.10.20	Round 5: Mareco, Sandro - Ticona Rocabado, Licael Roderick	5.1	2025.10.20 Ticona Rocabado, Licael Roderick (3319113) (2398)	½	94.90%	1. c4 c5 2. Nf3 Nc6 3. g3 g6
2025.10.20	Round 4: Hoffman, Alejandro - Mareco, Sandro	4.1	2025.10.20 Hoffman, Alejandro (100340) (2312)	0	-	1. Nf3 c5 2. g3 b6 3. Bg2 Bb7
2025.10.20	Round 3: Cubas, Jose - Mareco, Sandro	3.1	2025.10.20 Cubas, Jose (3700267) (2408)	½	72.10%	1. e4 c6 2. d4 d5 3. Nd2 dxe4
2025.10.20	Round 2: Mareco, Sandro - Casalaspro, Mathias Andre	2.1	2025.10.20 Casalaspro, Mathias Andre (22772626) (2261)	1	-	1. Nf3 Nf6 2. d4 g6 3. c4 Bg7
2025.10.20	Round 1: Filgueiras, Nathan Felipe - Mareco, Sandro	1.1	2025.10.20 Filgueiras, Nathan Felipe (2188562) (2399)	0	88.10%	1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6
2025.07.06	Round 9: Mareco, Sandro - Soriano Quispe, Ivan Excender	9.5	2025.07.06 Soriano Quispe, Ivan Excender (3822656) (2361)	1	95.20%	1. c4 e6 2. Nf3 d5 3. e3 Nf6
2025.07.05	Round 8: Silva, Kaua Marques - Mareco, Sandro	8.4	2025.07.05 Silva, Kaua Marques (22701168) (2297)	½	94.20%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2025.07.04	Round 7: Mareco, Sandro - Strikovic, Aleksa	7.2	2025.07.04 Strikovic, Aleksa (900150) (2375)	½	97.00%	1. e4 d6 2. d4 Nf6 3. Nc3 e5
2025.07.02	Round 5: Mareco, Sandro - Umetsubo, Cesar Hidemitsu	5.3	2025.07.02 Umetsubo, Cesar Hidemitsu (2103400) (2346)	1	93.90%	1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6
2025.07.01	Round 4: Hoffman, Alejandro - Mareco, Sandro	4.8	2025.07.01 Hoffman, Alejandro (100340) (2339)	1	93.00%	1. d4 Nf6 2. Nf3 e6 3. c4 c5
2025.06.29	Round 1: Mareco, Sandro - Figueroa, Matias Alejandro	1.1	2025.06.29 Figueroa, Matias Alejandro (44794770) (1880)	½	79.40%	1. Nf3 g6 2. c4 c5 3. d4 cxd4
2025.06.27	Round 6: Do Valle Cardoso, Lucas - Mareco, Sandro	6.1	2025.06.27 Do Valle Cardoso, Lucas (2163144) (2385)	½	98.00%	1. e4 d6 2. d4 Nf6 3. Nc3 e5
2025.05.31	Round 11: Panjwani, Raja - Mareco, Sandro	11.7	2025.05.31 Panjwani, Raja (2604493) (2446)	½	98.20%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2025.05.30	Round 10: Mareco, Sandro - Avila Pavas, Santiago	10.6	2025.05.30 Avila Pavas, Santiago (4437128) (2469)	½	90.70%	1. Nf3 d5 2. g3 Bg4 3. Bg2 c6
2025.05.29	Round 9: Campos Gomez, Manuel - Mareco, Sandro	9.6	2025.05.29 Campos Gomez, Manuel (4444710) (2355)	½	96.30%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2025.05.28	Round 8: Mareco, Sandro - Ynojosa Aponte, Felix Jose	8.8	2025.05.28 Ynojosa Aponte, Felix Jose (3900258) (2392)	1	99.20%	1. d4 Nf6 2. c4 e6 3. Nf3 b6
2025.05.27	Round 7: Schnaider, Ilan - Mareco, Sandro	7.7	2025.05.27 Schnaider, Ilan (169013) (2388)	½	97.50%	1. e4 c6 2. d4 d5 3. e5 c5
2025.05.26	Round 6: Mareco, Sandro - Contreras Huaman, Fiorella	6.14	2025.05.26 Contreras Huaman, Fiorella (3824675) (2341)	1	91.30%	1. e4 c6 2. d4 d5 3. e5 c5
2025.05.26	Round 5: Valdes Escobar, Alvaro - Mareco, Sandro	5.10	2025.05.26 Valdes Escobar, Alvaro (3405451) (2317)	½	93.80%	1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6
2025.05.24	Round 3: Filgueiras, Nathan Felipe - Mareco, Sandro	3.5	2025.05.24 Filgueiras, Nathan Felipe (2188562) (2370)	0	90.70%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2025.05.24	Round 2: Mareco, Sandro - Rodrigues, Edgar	2.5	2025.05.24 Rodrigues, Edgar (2107090) (2245)	1	97.30%	1. Nf3 Nf6 2. g3 g6 3. b3 Bg7
2025.05.23	Round 1: Carcamo, Matias - Mareco, Sandro	1.5	2025.05.23 Carcamo, Matias (115541) (2077)	1	-	1. e4 c5 2. Nc3 e6 3. g3 Nc6
2025.04.19	Ronda 9: Mareco, Sandro - Cori Quispe, Kevin Joel	9.2	2025.04.19 Cori Quispe, Kevin Joel (3814017) (2464)	1	98.00%	1. Nf3 Nf6 2. c4 e6 3. g3 d5
2025.04.18	Ronda 8: Martinez Alcantara, Jose Eduardo - Mareco, Sandro	8.2	2025.04.18 Martinez Alcantara, Jose Eduardo (3805662) (2606)	½	92.80%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2025.04.18	Ronda 7: Fernandez Hernandez, Arturo A. - Mareco, Sandro	7.4	2025.04.18 Fernandez Hernandez, Arturo A. (3509230) (2305)	1	98.50%	1. d4 d5 2. Nf3 Nf6 3. c4 e6
2025.04.17	Ronda 6: Mareco, Sandro - Cori, Jorge	6.2	2025.04.17 Cori, Jorge (3802272) (2593)	½	-	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2025.04.17	Ronda 5: Mareco, Sandro - Montes Orozco, Miguel Angel	5.4	2025.04.17 Montes Orozco, Miguel Angel (5159989) (2294)	1	96.70%	1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5
2025.04.16	Ronda 4: Real Pereyra, Jeronimo - Mareco, Sandro	4.11	2025.04.16 Real Pereyra, Jeronimo (5114004) (2125)	1	-	1. e4 c5 2. Nf3 e6 3. g3 Nc6
2025.04.16	Ronda 3: Mareco, Sandro - Lopez Michelone, Manuel	3.17	2025.04.16 Lopez Michelone, Manuel (5100305) (1976)	1	-	1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6
2025.04.14	Ronda 1: Morlett Ovalle, Cris Sebastian - Mareco, Sandro	1.3	2025.04.14 Morlett Ovalle, Cris Sebastian (5146330) (1976)	0	77.40%	1. d4 Nf6 2. Nf3 d5 3. Bf4 c5
2025.04.04	III Abierto Internacional de FAOGBA 2 al	4.1	2025.04.04 Coro, Lucas (147222) (2424)	1	-	1. d4 Nf6 2. c4 g6 3. Nf3 Bg7
2025.04.02	III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez	9	2025.04.02 Flores, Diego (108049) (2545)	½	96.50%	1. c4 e5 2. e3 Nf6 3. Nc3 d5
2025.04.02	III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez	8	2025.04.02 Cuenca Jimenez, Jose Fernando (2255570) (2487)	½	-	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2025.04.02	III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez	7	2025.04.02 Diaz Hollemaert, Nahuel (104019) (2361)	1	76.40%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2025.04.02	III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez	6	2025.04.02 Rodriguez Vila, Andres (3000010) (2427)	½	91.10%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2025.04.02	III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez	5	2025.04.02 Quintiliano, Renato R. (2117568) (2504)	0	-	1. d4 d5 2. Nf3 Nf6 3. e3 e6
2025.04.02	III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez	4	2025.04.02 Coro, Lucas (147222) (2424)	1	93.40%	1. d4 Nf6 2. c4 g6 3. Nf3 Bg7
2025.04.02	III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez	3	2025.04.02 Silva, Luca (147370) (2248)	1	92.00%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2025.04.02	III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez	2	2025.04.02 Brizzi, Milagros Tatiana (128350) (2176)	1	-	1. e4 c6 2. d4 d5 3. e5 c5
2025.04.02	III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez	1	2025.04.02 Gutierrez, Marcelo Enrique (126977) (2042)	1	93.30%	1. b4 c6 2. c4 d5 3. cxd5 cxd5
2025.03.24	Round 11: Mareco, Sandro - Diaz Hollemaert, Nahuel	11.2	2025.03.24 Diaz Hollemaert, Nahuel (104019) (2463)	1	-	1. e4 g6 2. d4 d6 3. Nc3 a6
2025.03.24	Round 10: Cuenca Jimenez, Jose Fernando - Mareco, Sandro	10.2	2025.03.24 Cuenca Jimenez, Jose Fernando (2255570) (2457)	1	-	1. d4 Nf6 2. c4 e6 3. Nc3 d5
2025.03.24	Round 9: Mareco, Sandro - Vazquez, Facundo	9.3	2025.03.24 Vazquez, Facundo	1	-	1. Nf3 d5 2. g3 Nf6 3. Bg2 e6
2025.03.22	Round 6: Mareco, Sandro - Flores, Diego	6.2	2025.03.22 Flores, Diego (108049) (2585)	1	93.80%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2025.03.22	Round 5: Perez Ponsa, Federico - Mareco, Sandro	5.3	2025.03.22 Perez Ponsa, Federico (117927) (2592)	1	93.60%	1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6
2025.03.22	Round 4: Izquierdo, Daniel - Mareco, Sandro	4.6	2025.03.22 Izquierdo, Daniel (3000044) (2216)	1	90.40%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2025.03.22	Round 3: Mareco, Sandro - Hungaski, Robert	3.3	2025.03.22 Hungaski, Robert (2021030) (2406)	½	88.40%	1. d4 e6 2. c4 Bb4+ 3. Nd2 c5
2025.03.22	Round 2: Fiori, Hector - Mareco, Sandro	2.3	2025.03.22 Fiori, Hector (110485) (2086)	1	98.50%	1. e4 c6 2. d4 d5 3. exd5 cxd5
2025.03.22	Round 1: Mareco, Sandro - Ramos, Gabriel	1.3	2025.03.22 Ramos, Gabriel (122440) (1848)	1	94.60%	1. e4 c5 2. Nf3 g6 3. Bc4 Bg7
2025.03.21	Round 13: Oro, Faustino - Mareco, Sandro	13.2	2025.03.21 Oro, Faustino (20000197) (2444)	0	82.10%	1. Nf3 d5 2. g3 Nc6 3. d4 Bf5
2025.03.21	Round 12: Mareco, Sandro - Flores, Diego	12.3	2025.03.21 Flores, Diego (108049) (2602)	1	92.60%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2025.03.21	Round 10: Coppola, Claudio - Mareco, Sandro	10.4	2025.03.21 Coppola, Claudio (3001717) (2169)	1	91.20%	1. b3 d5 2. Bb2 c6 3. e3 Bf5
2025.03.21	Round 9: Mareco, Sandro - Dominguez, Facundo	9.4	2025.03.21 Dominguez, Facundo	1	87.60%	1. Nf3 c5 2. e4 e6 3. d4 cxd4
2025.03.21	Round 8: Diaz Hollemaert, Nahuel - Mareco, Sandro	8.3	2025.03.21 Diaz Hollemaert, Nahuel (104019) (2455)	½	81.40%	1. c4 e5 2. Nc3 Bb4 3. Qc2 Ne7
2025.03.21	Round 7: Mareco, Sandro - Fiori, Hector	7.5	2025.03.21 Fiori, Hector (110485) (2089)	1	83.20%	1. Nf3 e6 2. c4 g5 3. h3 Bg7
2025.03.21	Round 6: Bustelo, Tabare - Mareco, Sandro	6.9	2025.03.21 Bustelo, Tabare (3000362) (2022)	1	87.20%	1. d4 Nf6 2. Bg5 d5 3. Bxf6 gxf6
2025.03.21	Round 4: Galaviz Medina, Sion Radamantys - Mareco, Sandro	4.3	2025.03.21 Galaviz Medina, Sion Radamantys (5123119) (2321)	0	75.70%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2025.03.21	Round 3: Mareco, Sandro - Hoffman, Alejandro	3.3	2025.03.21 Hoffman, Alejandro (100340) (2297)	½	91.60%	1. e4 d6 2. d4 Nf6 3. f3 g6
2025.03.21	Round 2: Izquierdo, Sebastian - Mareco, Sandro	2.3	2025.03.21 Izquierdo, Sebastian (3001610) (2047)	1	83.30%	1. d4 Nf6 2. Nf3 d5 3. g3 Bf5
2025.03.21	Round 1: Mareco, Sandro - Errazola, Mauricio	1.3	2025.03.21 Errazola, Mauricio (3017141) (1886)	1	92.60%	1. Nf3 Nf6 2. c4 b6 3. d4 Bb7
2025.03.19	Round 7: Mareco, Sandro - Oro, Faustino	7.1	2025.03.19 Oro, Faustino (20000197) (2423)	1	-	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2025.03.19	Round 8: Galaviz Medina, Sion Radamantys - Mareco, Sandro	8.1	2025.03.19 Galaviz Medina, Sion Radamantys (5123119) (2344)	0	86.20%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2025.03.19	Round 11: Perez Ponsa, Federico - Mareco, Sandro	11.1	2025.03.19 Perez Ponsa, Federico (117927) (2598)	½	84.00%	1. d4 Nf6 2. c4 e6 3. Nc3 d5
2025.03.10	Round 10: Mareco, Sandro - Galaviz Medina, Sion Radamantys	10.3	2025.03.10 Galaviz Medina, Sion Radamantys (5123119) (2501)	½	94.00%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2025.03.10	Round 9: Oro, Faustino - Mareco, Sandro	9.2	2025.03.10 Oro, Faustino (20000197) (2427)	1	95.10%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2025.03.10	Round 8: Mareco, Sandro - Rodriguez Vila, Andres	8.2	2025.03.10 Rodriguez Vila, Andres (3000010) (2429)	0	93.80%	1. d4 d6 2. Nf3 g6 3. c4 Bg7
2025.03.10	Round 7: Cuenca Jimenez, Jose Fernando - Mareco, Sandro	7.3	2025.03.10 Cuenca Jimenez, Jose Fernando (2255570) (2479)	½	98.90%	1. d4 d5 2. c4 e6 3. Nc3 Nf6
2025.03.10	Round 6: Flores, Diego - Mareco, Sandro	6.1	2025.03.10 Flores, Diego (108049) (2551)	½	98.30%	1. Nf3 d5 2. g3 Nc6 3. d4 Bf5
2025.03.10	Round 5: Galaviz Medina, Sion Radamantys - Mareco, Sandro	5.3	2025.03.10 Galaviz Medina, Sion Radamantys (5123119) (2501)	½	93.00%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2025.03.10	Round 4: Mareco, Sandro - Oro, Faustino	4.2	2025.03.10 Oro, Faustino (20000197) (2427)	½	95.00%	1. e4 c6 2. d4 d5 3. exd5 cxd5
2025.03.10	Round 3: Rodriguez Vila, Andres - Mareco, Sandro	3.2	2025.03.10 Rodriguez Vila, Andres (3000010) (2429)	1	61.60%	1. c4 e6 2. Nc3 d5 3. d4 Nf6
2025.03.10	Round 2: Mareco, Sandro - Cuenca Jimenez, Jose Fernando	2.3	2025.03.10 Cuenca Jimenez, Jose Fernando (2255570) (2479)	1	80.00%	1. d4 Nf6 2. c4 e6 3. Nc3 d5
2025.03.10	Round 1: Mareco, Sandro - Flores, Diego	1.1	2025.03.10 Flores, Diego (108049) (2551)	1	96.10%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2024.12.06	Round 11: Acosta, Pablo Ismael - Mareco, Sandro	11.2	2024.12.06 Acosta, Pablo Ismael (124311) (2454)	1	96.30%	1. e4 c5 2. Nf3 e6 3. Nc3 a6
2024.12.05	Round 10: Mareco, Sandro - Perez Ponsa, Federico	10.4	2024.12.05 Perez Ponsa, Federico (117927) (2536)	½	95.50%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2024.12.04	Round 9: Mareco, Sandro - Coro, Lucas	9.1	2024.12.04 Coro, Lucas (147222) (2401)	1	98.50%	1. e4 c5 2. Nf3 Nc6 3. Bb5 d6
2024.12.03	Round 8: Valerga, Diego - Mareco, Sandro	8.6	2024.12.03 Valerga, Diego (100587) (2445)	1	88.90%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2024.12.02	Round 7: Mareco, Sandro - Flores, Diego	7.2	2024.12.02 Flores, Diego (108049) (2545)	½	98.10%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2024.11.29	Round 4: Krysa, Leandro - Mareco, Sandro	4.4	2024.11.29 Krysa, Leandro (116807) (2496)	1	93.70%	1. c4 e5 2. g3 Nc6 3. Bg2 f5
2024.11.28	Round 3: Mareco, Sandro - Peralta, Fernando	3.4	2024.11.28 Peralta, Fernando (105309) (2546)	½	95.20%	1. c4 e6 2. g3 d5 3. Bg2 Nf6
2024.11.27	Round 2: Spata, German - Mareco, Sandro	2.3	2024.11.27 Spata, German (113026) (2399)	½	94.70%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2024.11.26	Round 1: Mareco, Sandro - Tokman, Ariel	1.5	2024.11.26 Tokman, Ariel (117420) (2390)	1	95.80%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2024.10.14	Round 9: Mareco, Sandro - Arrieta Hernandez, Cristian	9.1	2024.10.14 Arrieta Hernandez, Cristian (4455207) (2247)	1	95.80%	1. d4 e6 2. c4 d5 3. Nc3 f5
2024.10.14	Round 8: Arenas, David - Mareco, Sandro	8.1	2024.10.14 Arenas, David (4403177) (2326)	1	96.10%	1. e4 c5 2. Nc3 a6 3. Nge2 d6
2024.10.13	Round 7: Mareco, Sandro - Valderrama Quiceno, Esteban Alb	7.1	2024.10.13 Valderrama Quiceno, Esteban Alb (4442024) (2407)	1	94.40%	1. e4 c6 2. d4 d5 3. e5 Bf5
2024.10.13	Round 6: Barrientos, Sergio E - Mareco, Sandro	6.2	2024.10.13 Barrientos, Sergio E (4401824) (2412)	1	93.50%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2024.10.12	Round 5: Mareco, Sandro - Mitkov, Nikola	5.1	2024.10.12 Mitkov, Nikola (15000290) (2346)	0	81.00%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2024.10.12	Round 4: Cordoba Roa, Angel Gabriel - Mareco, Sandro	4.1	2024.10.12 Cordoba Roa, Angel Gabriel (3957624) (2332)	1	88.10%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2024.10.11	Round 3: Mareco, Sandro - Hernandez Montes, Jhon Sebastian	3.1	2024.10.11 Hernandez Montes, Jhon Sebastian (4412249) (2308)	1	87.30%	1. Nf3 d5 2. g3 Nc6 3. d4 Bf5
2024.10.11	Round 2: Narvaez, Zamir - Mareco, Sandro	2.1	2024.10.11 Narvaez, Zamir (4404238) (2080)	1	98.30%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2024.10.10	Round 1: Mareco, Sandro - Aponte Castillo, Ernesto	1.1	2024.10.10 Aponte Castillo, Jose Ernesto (4402960) (2002)	1	97.50%	1. Nf3 f5 2. c4 Nf6 3. g3 e6
2023.11.05	FIDE Grand Swiss 2023	11.50	2023.11.05 Lazavik, Denis (13515110) (2560)	0	88.70%	1. d4 Nf6 2. c4 e6 3. Nf3 a6
2023.11.04	FIDE Grand Swiss 2023	10.51	2023.11.04 Royal, Shreyas (448869) (2407)	½	90.30%	1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7
2023.11.03	FIDE Grand Swiss 2023	9.52	2023.11.03 Dardha, Daniel (240990) (2580)	½	97.50%	1. d4 Nf6 2. c4 e6 3. Bf4 d5
2023.11.02	FIDE Grand Swiss 2023	8.38	2023.11.02 Xiong, Jeffery (2047640) (2693)	0	63.60%	1. d4 d5 2. c4 dxc4 3. Nf3 a6
2023.11.01	FIDE Grand Swiss 2023	7.32	2023.11.01 Saric, Ivan (14508150) (2647)	0	88.80%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2023.10.30	FIDE Grand Swiss 2023	6.34	2023.10.30 Pichot, Alan (110973) (2650)	½	90.50%	1. d4 Nf6 2. c4 e6 3. Nf3 a6
2023.10.29	FIDE Grand Swiss 2023	5.24	2023.10.29 Praggnanandhaa R (25059530) (2738)	½	96.00%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2023.10.28	FIDE Grand Swiss 2023	4.34	2023.10.28 Bluebaum, Matthias (24651516) (2668)	½	75.10%	1. c4 Nf6 2. Nf3 e6 3. Nc3 d5
2023.10.27	FIDE Grand Swiss 2023	3.37	2023.10.27 Ivanchuk, Vasyl (14100010) (2653)	½	90.10%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2023.10.26	FIDE Grand Swiss 2023	2.34	2023.10.26 Shevchenko, Kirill (14129574) (2671)	½	91.00%	1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7
2023.10.25	FIDE Grand Swiss 2023	1.28	2023.10.25 Grandelius, Nils (1710400) (2689)	½	99.20%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2023.08.18	CE_Segunda	7.12	2023.08.18 Gonzalez Guedes, Iyan (24524131) (2263)	1	97.10%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2023.08.17	CE_Segunda	6.22	2023.08.17 Gomez Dominguez, Xabier (2274876) (2159)	1	95.10%	1. e4 c5 2. Nf3 g6 3. Bc4 Nc6
2023.08.16	CE_Segunda	5.7	2023.08.16 Matamoros Franco, Carlos S. (3600017) (2441)	0	55.90%	1. Nf3 d5 2. g3 Nf6 3. Bg2 e6
2023.08.15	CE_Segunda	4.2	2023.08.15 Gascon Del Nogal, Jose Rafael (3902463) (2468)	0	79.40%	1. Nf3 d5 2. g3 Nf6 3. Bg2 e6
2023.08.15	CE_Segunda	3.2	2023.08.15 Garcia Ramos, Daniel (32010311) (2468)	1	90.30%	1. c4 e6 2. Nf3 d5 3. g3 d4
2023.08.14	CE_Segunda	2.2	2023.08.14 Korneev Leskova, Svyatoslav (22267565) (2223)	1	97.50%	1. c4 e6 2. Nf3 d5 3. e3 Nf6
2023.08.13	CE_Segunda	1.7	2023.08.13 Castro Quijano, Eduardo (24507407) (2108)	1	97.50%	1. Nf3 Nf6 2. c4 e6 3. g3 d5
	1_division	7.9	Barseghyan, Harutyun (13304585) (2461)	½	99.50%	1. e4 c6 2. d4 d5 3. exd5 cxd5
	1_division	6.15	Grigoryan, Karen H. (13301004) (2468)	½	94.00%	1. d4 Nf6 2. c4 e6 3. Bg5 d5
	1_division	5.15	Belkaid, Sohan (45180350) (2333)	½	92.30%	1. d4 d5 2. c4 e6 3. Nc3 Nf6
	1_division	4.21	Arizmendi Martinez, Julen Luis (2205092) (2491)	½	97.60%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
	1_division	3.3	Van Wely, Loek (1000268) (2632)	½	96.20%	1. Nf3 d5 2. c4 c6 3. g3 Bg4
	1_division	2.9	Cruz Lledo, Pablo (2297361) (2426)	1	92.50%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
	1_division	1.21	Castellanos Rodriguez, Renier (3404650) (2490)	1	93.20%	1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+
2023.12.02	Round 9: Osvaldo Zambrana - Sandro Mareco		2023.12.02 Osvaldo Zambrana (2400)	0	69.50%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2023.12.01	Round 8: Sandro Mareco - Jose Fernando Cuenca Jimenez		2023.12.01 Jose Fernando Cuenca Jimenez (2505)	½	95.90%	1. d4 d5 2. c4 e6 3. Nc3 Be7
2023.11.30	Round 7: Andres Rodriguez Vila - Sandro Mareco		2023.11.30 Andres Rodriguez Vila (2405)	1	96.50%	1. Nf3 d5 2. g3 Nf6 3. Bg2 e6
2023.11.29	Round 6: Sandro Mareco - Oscar De La Riva Aguado		2023.11.29 Oscar De La Riva Aguado (2437)	½	92.70%	1. e4 e6 2. d4 d5 3. Nc3 Nf6
2023.11.29	Round 5: Cristobal Henriquez Villagra - Sandro Mareco		2023.11.29 Cristobal Henriquez Villagra (2630)	½	96.70%	1. e4 e6 2. d4 d5 3. Nd2 c5
2023.11.28	Round 4: Ermes Espinosa Veloz - Sandro Mareco		2023.11.28 Ermes Espinosa Veloz (2478)	½	99.50%	1. e4 c5 2. Nf3 d6 3. c3 Nf6
2023.11.26	Round 3: Sandro Mareco - Sergio Duran Vega		2023.11.26 Sergio Duran Vega (2392)	1	95.10%	1. e4 c5 2. Nf3 Nc6 3. Bb5 g6
2023.11.26	Round 2: Jorge Luis Baules Rodriguez - Sandro Mareco		2023.11.26 Jorge Luis Baules Rodriguez (2283)	*	95.70%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2023.11.25	Round 1: Sandro Mareco - Maria Florencia Fernandez		2023.11.25 Maria Florencia Fernandez (2099)	1	94.10%	1. Nf3 Nf6 2. c4 e6 3. g3 d5
2023.10.15	Round 9: Jose Eduardo Martinez Alcantara - Sandro Mareco		2023.10.15 Jose Eduardo Martinez Alcantara (2611)	½	98.10%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2023.10.15	Round 8: Sandro Mareco - Carlos Daniel Albornoz Cabrera		2023.10.15 Carlos Daniel Albornoz Cabrera (2582)	1	92.40%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2023.10.14	Round 7: Juan Carlos Gonzalez Zamora - Sandro Mareco		2023.10.14 Juan Carlos Gonzalez Zamora (2479)	½	96.00%	1. d4 Nf6 2. c4 e6 3. g3 d5
2023.10.14	Round 6: Sandro Mareco - Julio Cesar Diaz Rosas		2023.10.14 Julio Cesar Diaz Rosas (2337)	1	96.30%	1. c4 Nf6 2. Nc3 e6 3. Nf3 d5
2023.10.13	Round 5: Dylan Isidro Berdayes Ason - Sandro Mareco		2023.10.13 Dylan Isidro Berdayes Ason (2495)	½	97.50%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2023.10.13	Round 4: Sandro Mareco - Sion Radamantys Galaviz Medina		2023.10.13 Sion Radamantys Galaviz Medina (2454)	½	94.00%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2023.10.13	Round 4: Sandro Mareco - Sion Radamantys Galaviz Medina		2023.10.13 Sion Radamantys Galaviz Medina (2454)	*	99.70%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2023.10.13	Round 1: Amanda Maria Muniz Guevara - Sandro Mareco		2023.10.13 Amanda Maria Muniz Guevara (2133)	½	95.80%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2023.10.13	Round 2: Sandro Mareco - Alexander Andres Hernandez Jimenez		2023.10.13 Alexander Andres Hernandez Jimenez (2100)	1	94.70%	1. Nf3 d5 2. c4 c6 3. g3 Nf6
2023.10.13	Round 3: Carlos Sandoval Mercado - Sandro Mareco		2023.10.13 Carlos Sandoval Mercado (2387)	1	96.70%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2023.05.23	Round 11: Sandro Mareco - Elier Miranda Mesa		2023.05.23 Elier Miranda Mesa	½	92.70%	1. e4 c6 2. d4 d5 3. e5 Bf5
2023.05.22	Round 10: Joshua Johnson - Sandro Mareco		2023.05.22 Joshua Johnson	½	91.00%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6
2023.05.21	Round 9: Sandro Mareco - Matias Latorre		2023.05.21 Matias Latorre	1	93.70%	1. Nf3 e6 2. c4 d5 3. g3 Be7
2023.05.21	Round 8: Osvaldo Zambrana - Sandro Mareco		2023.05.21 Osvaldo Zambrana	0	89.50%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2023.05.20	Round 7: Sandro Mareco - Fidel Corrales Jimenez		2023.05.20 Fidel Corrales Jimenez	½	94.40%	1. d4 Nf6 2. c4 g6 3. Nf3 Bg7
2023.05.19	Round 6: Josiah Stearman - Sandro Mareco		2023.05.19 Josiah Stearman	½	95.30%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2023.05.18	Round 5: Sandro Mareco - Brian Sebasti Escalante Ramirez		2023.05.18 Brian Sebasti Escalante Ramirez	½	97.10%	1. d4 e6 2. Nf3 Nf6 3. c4 a6
2023.05.17	Round 4: Maximillian Lu - Sandro Mareco		2023.05.17 Maximillian Lu	*	91.20%	1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5
2023.05.16	Round 3: Sandro Mareco - Carlos Paul Abreu Jean		2023.05.16 Carlos Paul Abreu Jean	1	95.40%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2023.05.16	Round 2: Josue Araujo Sanchez - Sandro Mareco		2023.05.16 Josue Araujo Sanchez	½	95.50%	1. c4 Nf6 2. Nc3 e5 3. g3 Bb4
2023.05.15	Round 1: Sandro Mareco - Eduardo Galvez Dastin		2023.05.15 Eduardo Galvez Dastin	1	85.20%	1. c4 c6 2. Nf3 d5 3. e3 Nf6
2023.04.09	Round 9: Sandro Mareco - Abel Fabian Lopez Gonzalez		2023.04.09 Abel Fabian Lopez Gonzalez	1	88.90%	1. c4 e6 2. Nf3 d5 3. d4 dxc4
2023.04.09	Round 8: Rodney Oscar Perez Garcia - Jose Eduardo Martinez Alcantara		2023.04.09 Luis Ernesto Quesada Perez	½	98.60%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2023.04.08	Round 7: Sandro Mareco - Cristobal Henriquez Villagra		2023.04.08 Cristobal Henriquez Villagra	½	95.90%	1. Nf3 d5 2. d4 Nf6 3. c4 e6
2023.04.07	Round 6: Jose Eduardo Martinez Alcantara - Sandro Mareco		2023.04.07 Jose Eduardo Martinez Alcantara	½	97.10%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2023.04.07	Round 5: Sandro Mareco - Vyom Vidyarthi		2023.04.07 Vyom Vidyarthi	1	95.20%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2023.04.07	Round 4: Yusuan A. Gutierrez Delgado - Sandro Mareco		2023.04.07 Yusuan A. Gutierrez Delgado	1	96.50%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2023.04.07	Round 1: Sandro Mareco - Guillermo Javier Ruiz Gonzalez		2023.04.07 Guillermo Javier Ruiz Gonzalez	1	95.90%	1. Nf3 d5 2. c4 d4 3. b4 b6
2023.04.06	Round 3: Sandro Mareco - Sion Radamantys Galaviz Medina		2023.04.06 Sion Radamantys Galaviz Medina	1	93.80%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2023.04.06	Round 2: Cristobal Henriquez Villagra - Sandro Mareco		2023.04.06 Cristobal Henriquez Villagra	1	95.70%	1. d4 Nf6 2. c4 e6 3. Nc3 d5
2023.01.29	Round 10: Sandro Mareco - Juan Sebastian Melian		2023.01.29 Juan Sebastian Melian	1	98.30%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2023.01.28	Round 9: Juliana Sayumi Terao - Sandro Mareco		2023.01.28 Juliana Sayumi Terao	1	93.20%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2023.01.27	Round 8: Sandro Mareco - Evandro Amorim Barbosa		2023.01.27 Evandro Amorim Barbosa	½	81.60%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2023.01.27	Round 7: Diego Rafael Di Berardino - Sandro Mareco		2023.01.27 Diego Rafael Di Berardino	½	95.80%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2023.01.26	Round 6: Sandro Mareco - Matheus Mendes Domingues Ribeiro		2023.01.26 Matheus Mendes Domingues Ribeiro	1	97.20%	1. Nf3 d5 2. c4 e6 3. g3 Nf6
2023.01.26	Round 5: Edgar Rodrigues - Sandro Mareco		2023.01.26 Edgar Rodrigues	½	87.70%	1. e4 e5 2. Nf3 Nc6 3. d4 exd4
2023.01.25	Round 4: Sandro Mareco - Yago Labussiere		2023.01.25 Yago Labussiere	1	98.10%	1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5
2023.01.24	Round 3: Vitor Augusto Ponciano De Carvalho - Sandro Mareco		2023.01.24 Vitor Augusto Ponciano De Carvalho	1	96.00%	1. e4 c5 2. Nf3 Nc6 3. g3 g6
2023.01.24	Round 2: Sandro Mareco - Renan Barbosa Monteiro Soares		2023.01.24 Renan Barbosa Monteiro Soares	1	82.20%	1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7
2023.01.23	Round 1: Edgardo Campora - Sandro Mareco		2023.01.23 Edgardo Campora	1	95.50%	1. e4 c5 2. Nf3 e6 3. c3 Nf6