Sandro Mareco victorious at Mexico Open

by Carlos Alberto Colodro
4/21/2022 – A massive chess festival took place in Chihuahua, Mexico on April 12-17. Almost a thousand participants played in the numerous open tournaments, which included events for women, amateurs and different age categories. In the main event, Argentinian GM Sandro Mareco was the outright winner after scoring 7½ out of 9 points. Pablo Salinas (Chile), Kevin Cori (Peru) and Luis Ibarra (Mexico) finished a half point. | Photo: Official site
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Number one in Latin America

Mexico Chess Open 2022The two highest-rated Latin American players in the official FIDE ranking made their way to Chihuahua to play in the main event of the Mexico Open. Jorge Cori from Peru and Sandro Mareco from Argentina both entered the tournament with a 2652 rating. Ever since Leinier Dominguez and Lazaro Bruzon transferred to the United States, the two South American players have been heading the ratings lists in Latin America.

While in last year’s edition it was Cori who prevailed, shortly after knocking out Mareco from the FIDE World Cup, this time around it was the Argentinian who came out on top. On both occasions, the winner of the event scored 7½ points.

Mareco, who also won the Ibero-American Championship two months ago, defeated Cori in their direct encounter in Chihuahua. Moreover, his performance allowed him to become the number one player in Latin America and only one of two currently in the world’s top 100 — his compatriot Alan Pichot had a great performance in Buenos Aires to join him in the top-100 live ratings list.

Three players finished a half point behind Mareco in Chihuahua: Pablo Salinas from Chile, Kevin Cori from Peru and Luis Ibarra from Mexico. Remarkably, Mareco beat Salinas and Jorge Cori in rounds 7 and 8 before drawing Kevin Cori in the final round. For those wondering, Kevin is Jorge’s cousin — Jorge is also the brother of Deysi, who is currently ranked 60th in the world among women.

Mexico Chess Open 2022

A crowded playing hall | Photo: Official site

In the marquee matchup between Jorge Cori and Mareco, the Peruvian star played a novelty reminiscent of Vladimir Kramnik’s 7...Rg8 from round 3 of the 2018 Candidates Tournament. Cori went for 11.Rg1 out of a Ragozin Defence!

 
Cori vs. Mareco - Round 8

Naturally, Mareco was dumbfounded, as he spent almost 40 minutes on his next move. White’s intentions to create a kingside attack are obvious, so the Argentinian decided to develop his pieces sensibly while dealing with his opponent’s threats.

A tense struggle followed, with Cori transferring his king to the queenside and advancing his h-pawn. The position was rather balanced, until Mareco blundered on move 37.

 

Black’s 37...Qe6 was a grave mistake, as it allowed the immediate 38.Qh5, which all but forces resignation. However, Mareco was not the only one missing this move. In a case of mutual blindness, Cori responded with 38.Qd3, preparing to push his f-pawn.

There followed 38...Rxc6 (the knight is too dangerous on the c6 outpost) 39.bxc6 Qxc6, and this time it was Cori who blundered into a losing position with 40.f5

 

Unfortunately for the Peruvian, a second case of mutual blindness was not in the cards, as Mareco found 40...Qa4, the only winning move in the position, and it is Black who has the quicker attack now!

Cori tried to save a half point by attempting to give a perpetual check, but Mareco did not falter in the remainder of the game, calmly escaping the checks and grabbing the all-important full point a few moves later.

 
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1.d4 3 Nf6 4 2.c4 7 e6 4 3.Nf3 3 d5 4 4.Nc3 10 Bb4 23 5.Bg5 41 h6 11 6.Bxf6 1:25 Qxf6 6 7.cxd5 3:27 exd5 5 8.Rc1 0 0-0 3:12 9.a3 2 Bxc3+ 21 10.Rxc3 5 c6 47
D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4). 11.Rg1N 8:30 Predecessor: 11.e3 Bg4 12.Qb3 Nd7 13.Qxb7 Rab8 14.Qxc6 Rxb2 15.Bd3 Qxc6 16.Rxc6 Rfb8 17.0-0 R2b3 18.Ba6 Rxa3 19.Bc8 ½-½ (44) Bu,X (2644)-Jakovenko,D (2691) Wijk aan Zee 2007 11...Nd7 39:32 12.g4 44 Qd6 12:05 The position is equal. 13.g5 0 Inhibits Nf6. Re8 8:50 14.Qc2 34:27 Qf4 12:13 15.Rg3 13:26 Nf8! 5:19 16.gxh6 7:38 Qxh6 6 17.e3 1:40 Re4 0 17...Nh7 is more appropriate. 18.Qb3 2:16 Re7 2:13 19.Bd3 8 Prevents Bf5. Be6 10 20.Kd2 55 Qf6 39 21.Qd1 10:46 Bf5 57 22.Bxf5 12 Qxf5 4 23.Qg1 3 g6 6:27 24.h4 4:09 Nh7 10 25.Ne5 38 Nf6 25...Kg7= 26.f3 2:56 Nh7 Against Rg5 27.Kc1 30 Rc8 28.b4 0 28.Rg4 28...Rce8 28...Ra8= 29.Kb2 30 29.f4!± 29...a5 29...Rxe5= remains equal. 30.dxe5 Qxe5 30.f4 30 30.bxa5± Black must now prevent f4. Qh5 31.a6 30...axb4= 31.axb4 30 Ra8 32.h5 30 Qxh5 aiming for ...Qe2+. 33.Rc2 30 Against Qe2 b6 Strongly threatening ...Rea7. 34.Nxc6 30 34.Rh2 Qf5 35.Nxf7 35.Rgh3 Rea7 35...Rxf7 34.Nxg6!? Rea7 35.Ne5+ Kh8 36.Qh2 36.Nxc6? Ra2+ 37.Kb1 Ra1+ 38.Kb2 R1a2+ 39.Kb1 Ra1+ 40.Kb2 R8a2+ 41.Kb3 Rxg1-+ 36...Ra2+ 37.Kc1 Ra1+ 38.Kb2 R8a2+ 39.Kc3 Ra3+ 40.Kb2 R1a2+ 41.Kc1 Ra1+ 42.Kb2= 34...Rc7 Black has the initiative. 35.b5 30 Qf5 36.Qd1 30 36.Rc3= 36...Kg7 36...Nf6!? 37.Rh2 Kg7= 37.Rh2 30 Qe6? 37...Nf6= 38.Rgh3 Qe6 38.Qd3? 30 White must play 38.Qh5!+- Kf6 38...Rcc8 39.Qxh7+ Kf6 40.Qh4+ Kg7 41.Qh6+ Kf6 42.Qg5+ Kg7 43.f5 Qd6 44.f6+ Qxf6 45.Qh6+ 39.Qh4+ Kf5 40.Qxh7 Rxc6 41.Qh3+ Kf6 42.Qh4+ Kg7 43.Qh6+ Kf6 44.Qg5+ Kg7 45.f5 Rc2+ 46.Kxc2 Qc8+ 47.Kb2 Ra2+ 48.Kxa2 Qc4+ 49.Kb2 Qb4+ 50.Kc1 Qc3+ 51.Kd1 Qd3+ 52.Ke1 38...Rxc6 39.bxc6 30 Qxc6 Dancing on a razor blade. 40.f5? 30 Wrong is 40.Rgh3? Nf6 41.e4 dxe4-+ 40.Rg1= 40...Qa4-+ 41.Rxh7+ 30 Kxh7 42.fxg6+ 0 Endgame
KQR-KQR 42...Kh6! 43.Rh3+ 30
43...Kg5! ( -> ...Qa1+) And not 43...Kg7 44.Rh7+ Kf8 45.Rh8+ 45.gxf7 leads to mate. Qa1+ 46.Kb3 Ra3+ 47.Kc2 Ra2+ 48.Kb3 Qb2# 45...Kg7 46.Rxa8 Qxa8 47.gxf7= 44.Rg3+ 30 Kh4 Black mates. 45.Rh3+ 30 Kxh3 46.Qf5+ 30 Kh4 47.Qf4+ 30 Kh5 Weighted Error Value: White=0.82/Black=0.15 (very precise) 0–1
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Cori,J2650Mareco,S26430–1202267th Mexican-ch Open 20228.1

Both the open tournament and the women’s tournament served as qualifiers to represent Mexico in the upcoming Olympiad. Luis Ibarra and Gilberto Hernandez made it to the open team as the top scorers in the main event, while Sandra Guillen and Ameyalli Avila gained the right to represent their country at the Women’s Olympiad in Chennai.

Avila found a good-looking silent move to win his round-7 encounter. Can you find it?

Final standings - Open

Rk. Name Pts.  TB1 
1 Mareco Sandro 7,5 0,0
2 Salinas Herrera Pablo 7,0 0,0
3 Cori Quispe Kevin Joel 7,0 0,0
4 Ibarra Chami Luis Fernando 7,0 0,0
5 Cordova Emilio 6,5 0,0
6 Cori Jorge 6,5 0,0
7 Hernandez Guerrero Gilberto 6,5 0,0
8 Quesada Perez Luis Ernesto 6,5 0,0
9 Gonzalez Zamora Juan Carlos 6,0 0,0
10 Galaviz Medina Sion Radamantys 6,0 0,0
11 Diaz Villagran Robert 6,0 0,0
12 Perez Gormaz Matias 6,0 0,0
13 Garcia Guerrero Isaac Antonio 6,0 0,0
14 Jorajuria Mendoza Algol 6,0 0,0
15 Avila Bautista Roberto Al 6,0 0,0

...87 players

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1.d4 10:02 Alvarez,Roberto Gabriel Nf6 21 2.Bf4 15 g6 32 3.Nc3 21 Bg7 8:53 4.e4 1:22 d6 6 5.Qd2 38 0-0 25 6.0-0-0 49 Nc6 44 7.Bh6 1:47 e5 2:20 8.Bxg7 52 Kxg7 5 9.Nge2 3:24 B07: Pirc Defence: Miscellaneous Systems. Ng4 2:19 10.Qe1 52
10...exd4N 10:14 Predecessor: 10...Qf6 11.dxe5 Qxf2 12.exd6 Qxe1 13.Rxe1 cxd6 14.h3 Nf6 15.g4 Be6 16.Nf4 h6 1-0 (51) Ederer,K (2196)-Keevil,P (2154) LSS email 2011 Telechess CBM 157 [Alvarez,Roberto Gabriel] 11.Nxd4 8 White is slightly better. Nxd4 13 12.Rxd4 3 Qg5+ 8:02 13.Qd2 3:48 13.Kb1 13...Qxd2+= 25 14.Rxd2 2 Be6 13 15.f3 2:55 Nf6 17 16.g3 2:38 a6 23 17.Bg2 1:07       b5 16 18.f4 1:12
Hoping for e5. 18...Rae8 2:10 19.a3 6:10 h5 4:21 20.h3 7:53 Nd7 6:08       21.Bf3 1:42 f6 1:44 22.Rg2 10:34 Bf7 3:25 23.g4 3:32 hxg4 7 24.Bxg4 10 Nc5 11 25.Bf3 30 Rh8 25 26.h4 1:08 Rh6 4:16 27.h5 3:37 Ne6 10:30 28.Ne2 2:41 Kf8 35 29.f5 2:20 gxf5 1:00 Much weaker is 29...Ng5 30.fxg6 Bxg6 31.Rxg5 fxg5 32.hxg6 Rxh1+ 33.Bxh1= 30.exf5 2:28 Ng5 8 31.Bg4 6 Now White is beyond hope. Better is 31.Bb7 31...Bd5-+ 11 32.Rgg1 38 Bxh1 11 33.Rxh1 2 Re4 11 Prevents Nf4. 34.Rg1 16 Rh7 1:50 35.Kd2 15 Rhe7 10 36.Nc3 2:05 Rd4+ 1:15 37.Kc1 2 c5 1:35 38.Ne2 24
38.b3 38...Rxg4! 7       Weighted Error Value: White=0.41/Black=0.04 (flawless) 0–1
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WhiteEloWBlackEloBResYearECOEventRnd
Cruz Gomez,M2028Cori,J26500–12022B0767th Mexican-ch Open 20221.1
Mareco,S2643Silva Hernandez,J20061–02022E9567th Mexican-ch Open 20221.2
Ramirez Esqueda,E1931Hernandez Guerrero,G25640–12022B5767th Mexican-ch Open 20221.3
Cordova,E2534Guerrero Cataldo,J19761–02022A1567th Mexican-ch Open 20221.4
Flores Irurso,P1912Gonzalez Zamora,J25440–12022B4067th Mexican-ch Open 20221.5
Obregon Rivero,J2536Sierra Arballo,J19161–02022C8467th Mexican-ch Open 20221.6
Flores Teillery,A1879Salinas Herrera,P25170–12022D4667th Mexican-ch Open 20221.7
Quesada Perez,L2517Robles Sanchez,F18781–02022E9067th Mexican-ch Open 20221.8
Sauceda Castillo,F1842Cori Quispe,K24920–12022A4967th Mexican-ch Open 20221.9
Ibarra Chami,L2451Gonzalez Cruz,I18141–02022A2967th Mexican-ch Open 20221.10
Steinberg,E1808Perez Gormaz,M24040–12022B8067th Mexican-ch Open 20221.11
Fernandez Hernandez,A2376Martinez Martinez,I18211–02022D1167th Mexican-ch Open 20221.12
Rivera Garcia,D1780Galaviz Medina,S23740–12022B8367th Mexican-ch Open 20221.13
Diaz Rosas,J2393Pena Davalos,D17611–02022C0267th Mexican-ch Open 20221.14
Dominguez Gonzalez,E1785Torres Rosas,L23560–12022C0267th Mexican-ch Open 20221.15
Figueredo Losada,L2342Contreras Frias,G17711–02022E9367th Mexican-ch Open 20221.16
Kowalski Davila,E1735Garcia Guerrero,I23380–12022E5167th Mexican-ch Open 20221.17
Benitez Lozano,J2309Villanueva De Leon,V17291–02022A5967th Mexican-ch Open 20221.18
Jimenez Jimenez,D1721Sandoval Mercado,C22890–12022E8167th Mexican-ch Open 20221.19
Diaz Villagran,R2318Baeza,P17111–02022B2267th Mexican-ch Open 20221.20
Serrato,R1707Capo Vidal,U23061–02022D0067th Mexican-ch Open 20221.21
Maass Garza R,A2265Huerta Milan,H16721–02022B7367th Mexican-ch Open 20221.22
Almendarez Verdin,M1662Morales Garcia,S2246½–½2022D4567th Mexican-ch Open 20221.23
Tapie Amione,P2241Gomez Vazquez,E16611–02022B9867th Mexican-ch Open 20221.24
Cori,J2650Diaz Villagran,R2318½–½2022A2667th Mexican-ch Open 20222.1
Cruz Gomez,M2028Cori,J2650202267th Mexican-ch Open 20222.1
Maass Garza R,A2265Mareco,S26430–12022B4067th Mexican-ch Open 20222.2
Hernandez Guerrero,G2564Tapie Amione,P22411–02022B1167th Mexican-ch Open 20222.3
Hernandez Guerrero,E2232Cordova,E25340–12022B6167th Mexican-ch Open 20222.4
Gonzalez Zamora,J2544Avila Rodriguez,J2182½–½2022E4667th Mexican-ch Open 20222.5
Obregon Rivero,J2536Sierra Arballo,J1916202267th Mexican-ch Open 20222.6
Gonzalez Arroyo,L2210Obregon Rivero,J25361–02022B5167th Mexican-ch Open 20222.6
Salinas Herrera,P2517Lopez Raygoza,L22071–02022B3167th Mexican-ch Open 20222.7
Flores Teillery,A1879Salinas Herrera,P2517202267th Mexican-ch Open 20222.7
Flores Guerrero,J2251Quesada Perez,L25170–12022A2067th Mexican-ch Open 20222.8
Cori Quispe,K2492Blanco Fernandez,A22161–02022B3667th Mexican-ch Open 20222.9
Sauceda Castillo,F1842Cori Quispe,K2492202267th Mexican-ch Open 20222.9
Ibarra Chami,L2451Gonzalez Cruz,I1814202267th Mexican-ch Open 20222.10
Quiroga Jaquez,A2185Ibarra Chami,L24510–12022E5167th Mexican-ch Open 20222.10
Perez Gormaz,M2404Luna Javier,E2148½–½2022B2267th Mexican-ch Open 20222.11
Steinberg,E1808Perez Gormaz,M2404202267th Mexican-ch Open 20222.11
Fernandez Hernandez,A2376Martinez Martinez,I1821202267th Mexican-ch Open 20222.12
Avila Bautista,R2090Fernandez Hernandez,A2376½–½2022D1167th Mexican-ch Open 20222.12
Galaviz Medina,S2374Hernandez Jimenez,A21671–02022E3867th Mexican-ch Open 20222.13
Rivera Garcia,D1780Galaviz Medina,S2374202267th Mexican-ch Open 20222.13
Diaz Rosas,J2393Pena Davalos,D17612022C8367th Mexican-ch Open 20222.14
Jorajuria Mendoza,A2006Diaz Rosas,J23930–12022C8367th Mexican-ch Open 20222.14
Torres Rosas,L2356Rosales Campos,P20390–12022C0067th Mexican-ch Open 20222.15
Dominguez Gonzalez,E1785Torres Rosas,L2356202267th Mexican-ch Open 20222.15
Figueredo Losada,L2342Contreras Frias,G1771202267th Mexican-ch Open 20222.16
Montes Orozco,M1914Figueredo Losada,L2342½–½2022A4267th Mexican-ch Open 20222.16
Garcia Guerrero,I2338Rascon Vega,A21070–12022D0067th Mexican-ch Open 20222.17
Kowalski Davila,E1735Garcia Guerrero,I2338202267th Mexican-ch Open 20222.17
Benitez Lozano,J2309Villanueva De Leon,V1729202267th Mexican-ch Open 20222.18
Bayona Ordonez,A-Benitez Lozano,J23090–12022E3267th Mexican-ch Open 20222.18
Sandoval Mercado,C2289Davalos Prieto,A21031–02022E0567th Mexican-ch Open 20222.19
Jimenez Jimenez,D1721Sandoval Mercado,C22892022E0567th Mexican-ch Open 20222.19
Diaz Villagran,R2318Baeza,P1711202267th Mexican-ch Open 20222.20
Morales Garcia,S2246Serrato,R17071–02022D5367th Mexican-ch Open 20222.20
Palma Villanueva,M2210Almendarez Verdin,M16620–12022C6367th Mexican-ch Open 20222.21
Serrato,R1707Capo Vidal,U2306202267th Mexican-ch Open 20222.21
Maass Garza R,A2265Huerta Milan,H1672202267th Mexican-ch Open 20222.22
Paredes Guzman,F1891Pacheco Almaraz,J16431–02022D5567th Mexican-ch Open 20222.22
Almendarez Verdin,M1662Morales Garcia,S2246202267th Mexican-ch Open 20222.23
Gomez Carbajal,D-Amezcua Luria,J20010–12022C5067th Mexican-ch Open 20222.23
Capo Vidal,U2306Arizpe,F12741–02022E7667th Mexican-ch Open 20222.24
Tapie Amione,P2241Gomez Vazquez,E16612022E7667th Mexican-ch Open 20222.24
Corrales Jimenez,Z2151Diaz Osorio,A16271–02022C4567th Mexican-ch Open 20222.25
Flores Rodriguez,A1662Ancheyta Tejas,C17891–02022B0167th Mexican-ch Open 20222.26
Real Pereyra,D2049Ortega Beltran,X17250–12022B7067th Mexican-ch Open 20222.27
Mareco,S2643Galaviz Medina,S2374½–½2022B5167th Mexican-ch Open 20223.1
Diaz Rosas,J2393Hernandez Guerrero,G2564½–½2022B4667th Mexican-ch Open 20223.2
Cordova,E2534Benitez Lozano,J23091–02022A3067th Mexican-ch Open 20223.3
Rosales Campos,P2039Salinas Herrera,P25170–12022B4167th Mexican-ch Open 20223.4
Quesada Perez,L2517Sandoval Mercado,C22890–12022E2067th Mexican-ch Open 20223.5
Rascon Vega,A2107Cori Quispe,K24920–12022B5067th Mexican-ch Open 20223.6
Ibarra Chami,L2451Gonzalez Arroyo,L22101–02022C7767th Mexican-ch Open 20223.7
Avila Rodriguez,J2182Cori,J26500–12022C1867th Mexican-ch Open 20223.8
Luna Javier,E2148Gonzalez Zamora,J25440–12022D1167th Mexican-ch Open 20223.9
Almendarez Verdin,M1662Perez Gormaz,M24040–12022A5867th Mexican-ch Open 20223.10
Fernandez Hernandez,A2376Montes Orozco,M19140–12022A1267th Mexican-ch Open 20223.11
Figueredo Losada,L2342Avila Bautista,R20901–02022B2367th Mexican-ch Open 20223.12
Diaz Villagran,R2318Paredes Guzman,F18911–02022B2267th Mexican-ch Open 20223.13
Amezcua Luria,J2001Morales Garcia,S22460–12022D4667th Mexican-ch Open 20223.14
Obregon Rivero,J2536Martinez Martinez,I18211–02022D1167th Mexican-ch Open 20223.15
Rivera Garcia,D1780Torres Rosas,L23560–12022B9467th Mexican-ch Open 20223.16
Pena Davalos,D1761Garcia Guerrero,I23380–12022A3767th Mexican-ch Open 20223.17
Kowalski Davila,E1735Capo Vidal,U23061–02022D3167th Mexican-ch Open 20223.18
Tapie Amione,P2241Contreras Frias,G17711–02022B0767th Mexican-ch Open 20223.19
Serrato,R1707Hernandez Guerrero,E22320–12022A4567th Mexican-ch Open 20223.20
Lopez Raygoza,L2207Villanueva De Leon,V17291–02022B5167th Mexican-ch Open 20223.21
Mejia Nunez,H1611Flores Guerrero,J22510–12022B0167th Mexican-ch Open 20223.22
Blanco Fernandez,A2216Baeza,P17111–02022E1067th Mexican-ch Open 20223.23
Garduno Huerta,J1622Quiroga Jaquez,A21851–02022D4067th Mexican-ch Open 20223.24
Padilla Garcia,C1834Corrales Jimenez,Z21511–02022B2367th Mexican-ch Open 20223.25
Ruiz Villalba,A1831Guerrero Rodriguez,A20190–12022C0267th Mexican-ch Open 20223.26
Ortega Beltran,X1725Martinez de La Trinidad,A18431–02022A2267th Mexican-ch Open 20223.27
Cori Quispe,K2492Cordova,E2534½–½2022C0167th Mexican-ch Open 20224.1
Salinas Herrera,P2517Ibarra Chami,L24511–02022B5167th Mexican-ch Open 20224.2
Sandoval Mercado,C2289Cori,J26500–12022A5067th Mexican-ch Open 20224.3
Morales Garcia,S2246Mareco,S2643½–½2022D2467th Mexican-ch Open 20224.4
Hernandez Guerrero,G2564Figueredo Losada,L2342½–½2022C6367th Mexican-ch Open 20224.5
Gonzalez Zamora,J2544Diaz Rosas,J23931–02022E6067th Mexican-ch Open 20224.6
Perez Gormaz,M2404Diaz Villagran,R2318½–½2022D0067th Mexican-ch Open 20224.7
Galaviz Medina,S2374Montes Orozco,M19141–02022D1867th Mexican-ch Open 20224.8
Blanco Fernandez,A2216Obregon Rivero,J25360–12022B3867th Mexican-ch Open 20224.9
Jorajuria Mendoza,A2006Quesada Perez,L25170–12022C6767th Mexican-ch Open 20224.10
Torres Rosas,L2356Hernandez Jimenez,A21671–02022D1567th Mexican-ch Open 20224.11
Garcia Guerrero,I2338Rosales Campos,P2039½–½2022A1467th Mexican-ch Open 20224.12
Benitez Lozano,J2309Rascon Vega,A2107½–½2022E9767th Mexican-ch Open 20224.13
Guerrero Cataldo,J1976Tapie Amione,P2241½–½2022D0267th Mexican-ch Open 20224.14
Hernandez Guerrero,E2232Davalos Prieto,A21031–02022B6767th Mexican-ch Open 20224.15
Gonzalez Arroyo,L2210Kowalski Davila,E17351–02022B1967th Mexican-ch Open 20224.16
Bayona Ordonez,A-Lopez Raygoza,L2207½–½2022E9167th Mexican-ch Open 20224.17
Flores Guerrero,J2251Garduno Huerta,J16221–02022D0067th Mexican-ch Open 20224.18
Paredes Guzman,F1891Fernandez Hernandez,A23760–12022A9667th Mexican-ch Open 20224.19
Amezcua Luria,J2001Maass Garza R,A22650–12022D9367th Mexican-ch Open 20224.20
Ramirez Esqueda,E1931Avila Rodriguez,J21820–12022B9067th Mexican-ch Open 20224.21
De Loera Torres,N1556Luna Javier,E21480–12022D8067th Mexican-ch Open 20224.22
Palma Villanueva,M2210Flores Teillery,A1879½–½2022B9267th Mexican-ch Open 20224.23
Gongora Montes,B2157Almendarez Verdin,M16621–02022D9767th Mexican-ch Open 20224.24
Guerrero Rodriguez,A2019Mora Velasco,A1780½–½2022B2267th Mexican-ch Open 20224.25
Salas Estrada,A1654Avila Fraire,A19550–12022B2467th Mexican-ch Open 20224.26
Avila Bautista,T-Padilla Garcia,C1834½–½2022A2567th Mexican-ch Open 20224.27
Cordova,E2534Salinas Herrera,P2517½–½2022A0767th Mexican-ch Open 20225.1
Cori,J2650Cori Quispe,K24921–02022E1167th Mexican-ch Open 20225.2
Galaviz Medina,S2374Gonzalez Zamora,J25440–12022E3267th Mexican-ch Open 20225.3
Mareco,S2643Sandoval Mercado,C22891–02022A5967th Mexican-ch Open 20225.4
Diaz Villagran,R2318Hernandez Guerrero,G2564½–½2022A0867th Mexican-ch Open 20225.5
Obregon Rivero,J2536Morales Garcia,S22461–02022B4967th Mexican-ch Open 20225.6
Quesada Perez,L2517Hernandez Guerrero,E22321–02022A6567th Mexican-ch Open 20225.7
Ibarra Chami,L2451Flores Guerrero,J22511–02022A8467th Mexican-ch Open 20225.8
Figueredo Losada,L2342Perez Gormaz,M24040–12022B1267th Mexican-ch Open 20225.9
Gonzalez Arroyo,L2210Torres Rosas,L2356½–½2022B3267th Mexican-ch Open 20225.10
Fernandez Hernandez,A2376Lopez Raygoza,L22071–02022A1767th Mexican-ch Open 20225.11
Diaz Rosas,J2393Gongora Montes,B21571–02022C5567th Mexican-ch Open 20225.12
Luna Javier,E2148Garcia Guerrero,I2338½–½2022A0767th Mexican-ch Open 20225.13
Rosales Campos,P2039Benitez Lozano,J23090–12022A3167th Mexican-ch Open 20225.14
Rascon Vega,A2107Maass Garza R,A22651–02022B4067th Mexican-ch Open 20225.15
Tapie Amione,P2241Bayona Ordonez,A-1–02022C0267th Mexican-ch Open 20225.16
Avila Rodriguez,J2182Guerrero Cataldo,J19761–02022B0167th Mexican-ch Open 20225.17
Montes Orozco,M1914Capo Vidal,U23061–02022D3167th Mexican-ch Open 20225.18
Flores Teillery,A1879Blanco Fernandez,A22160–12022A1067th Mexican-ch Open 20225.19
Steinberg,E1808Quiroga Jaquez,A21850–12022C7667th Mexican-ch Open 20225.20
Pena Davalos,D1761Palma Villanueva,M22100–12022A4867th Mexican-ch Open 20225.21
Hernandez Jimenez,A2167Gonzalez Cruz,I18141–02022C5467th Mexican-ch Open 20225.22
Kowalski Davila,E1735Avila Bautista,R20900–12022A7367th Mexican-ch Open 20225.23
Mejia Nunez,H1611Jorajuria Mendoza,A20060–12022B3367th Mexican-ch Open 20225.24
Avila Fraire,A1955Guerrero Rodriguez,A2019½–½2022B4067th Mexican-ch Open 20225.25
Salas Estrada,A1783Guillen Cristobal,S19330–12022A0567th Mexican-ch Open 20225.26
Ramirez Toledo,A1810Padilla Garcia,C18341–02022D0267th Mexican-ch Open 20225.27
Salinas Herrera,P2517Cori,J2650½–½2022B1367th Mexican-ch Open 20226.1
Gonzalez Zamora,J2544Mareco,S26430–12022D3067th Mexican-ch Open 20226.2
Quesada Perez,L2517Cordova,E2534½–½2022D1767th Mexican-ch Open 20226.3
Perez Gormaz,M2404Obregon Rivero,J25360–12022B2267th Mexican-ch Open 20226.4
Hernandez Guerrero,G2564Ibarra Chami,L24511–02022C8367th Mexican-ch Open 20226.5
Cori Quispe,K2492Diaz Villagran,R23181–02022C1867th Mexican-ch Open 20226.6
Tapie Amione,P2241Fernandez Hernandez,A23760–12022B4867th Mexican-ch Open 20226.7
Avila Rodriguez,J2182Galaviz Medina,S23740–12022B8167th Mexican-ch Open 20226.8
Montes Orozco,M1914Diaz Rosas,J2393½–½2022D9767th Mexican-ch Open 20226.9
Torres Rosas,L2356Rascon Vega,A2107½–½2022C5567th Mexican-ch Open 20226.10
Benitez Lozano,J2309Gonzalez Arroyo,L22100–12022A2567th Mexican-ch Open 20226.11
Palma Villanueva,M2210Figueredo Losada,L23420–12022C7767th Mexican-ch Open 20226.12
Garcia Guerrero,I2338Hernandez Jimenez,A21671–02022A2267th Mexican-ch Open 20226.13
Sandoval Mercado,C2289Luna Javier,E21481–02022D7967th Mexican-ch Open 20226.14
Morales Garcia,S2246Davalos Prieto,A21031–02022D3767th Mexican-ch Open 20226.15
Hernandez Guerrero,E2232Silva Hernandez,J20060–12022B7267th Mexican-ch Open 20226.16
Flores Guerrero,J2251Flores Irurso,P1912½–½2022A0367th Mexican-ch Open 20226.17
Avila Bautista,R2090Blanco Fernandez,A22161–02022A1567th Mexican-ch Open 20226.18
Quiroga Jaquez,A2185Arizpe,F12741–02022D2067th Mexican-ch Open 20226.19
Jorajuria Mendoza,A2006Gongora Montes,B2157½–½2022C8867th Mexican-ch Open 20226.20
Maass Garza R,A2265Rivera Garcia,D17801–02022B5967th Mexican-ch Open 20226.21
Lopez Raygoza,L2207Almendarez Verdin,M16621–02022C0167th Mexican-ch Open 20226.22
Guerrero Cataldo,J1976Rosales Campos,P20391–02022E0467th Mexican-ch Open 20226.23
Diaz Guerrero,J1518Paredes Guzman,F1891½–½2022B9267th Mexican-ch Open 20226.24
Ramirez Toledo,A1810Avila Fraire,A1955½–½2022A0467th Mexican-ch Open 20226.25
Guillen Cristobal,S1933Mora Velasco,A17801–02022B0167th Mexican-ch Open 20226.26
Real Pereyra,D2049Flores Rodriguez,A1662½–½2022B4367th Mexican-ch Open 20226.27
Cori,J2650Obregon Rivero,J2536½–½2022A3667th Mexican-ch Open 20227.1
Mareco,S2643Salinas Herrera,P25171–02022D5267th Mexican-ch Open 20227.2
Fernandez Hernandez,A2376Hernandez Guerrero,G2564½–½2022A3867th Mexican-ch Open 20227.3
Cordova,E2534Gonzalez Zamora,J2544½–½2022A1167th Mexican-ch Open 20227.4
Galaviz Medina,S2374Quesada Perez,L25170–12022A8467th Mexican-ch Open 20227.5
Gonzalez Arroyo,L2210Cori Quispe,K24920–12022B4267th Mexican-ch Open 20227.6
Ibarra Chami,L2451Sandoval Mercado,C22891–02022A3667th Mexican-ch Open 20227.7
Rascon Vega,A2107Perez Gormaz,M24040–12022B1467th Mexican-ch Open 20227.8
Diaz Rosas,J2393Morales Garcia,S22460–12022B4867th Mexican-ch Open 20227.9
Torres Rosas,L2356Montes Orozco,M19141–02022D1567th Mexican-ch Open 20227.10
Figueredo Losada,L2342Quiroga Jaquez,A21851–02022C2267th Mexican-ch Open 20227.11
Silva Hernandez,J2006Garcia Guerrero,I23380–12022D3867th Mexican-ch Open 20227.12
Benitez Lozano,J2309Avila Bautista,R2090½–½2022A6767th Mexican-ch Open 20227.13
Diaz Villagran,R2318Bayona Ordonez,A-1–02022C0067th Mexican-ch Open 20227.14
Flores Guerrero,J2251Maass Garza R,A22650–12022D0067th Mexican-ch Open 20227.15
Jorajuria Mendoza,A2006Tapie Amione,P22411–02022B4067th Mexican-ch Open 20227.16
Flores Irurso,P1912Avila Rodriguez,J21820–12022B9067th Mexican-ch Open 20227.17
Lopez Raygoza,L2207Guerrero Cataldo,J1976½–½2022B1067th Mexican-ch Open 20227.18
Paredes Guzman,F1891Capo Vidal,U23061–02022D3167th Mexican-ch Open 20227.19
Pena Davalos,D1761Hernandez Guerrero,E22320–12022A3467th Mexican-ch Open 20227.20
Luna Javier,E2148Martinez Martinez,I18211–02022D0267th Mexican-ch Open 20227.21
Kowalski Davila,E1735Palma Villanueva,M22100–12022E9067th Mexican-ch Open 20227.22
Gongora Montes,B2157Villanueva De Leon,V17291–02022A5767th Mexican-ch Open 20227.23
Hernandez Jimenez,A2167Arizpe,F12741–02022B2267th Mexican-ch Open 20227.24
Guillen Cristobal,S1933Ramirez Toledo,A18101–02022B3267th Mexican-ch Open 20227.25
Avila Fraire,A1955Avila Bautista,T-1–02022B3467th Mexican-ch Open 20227.26
Ruiz Villalba,A1831Corrales Jimenez,Z2151½–½2022B2267th Mexican-ch Open 20227.27
Cori,J2650Mareco,S26430–12022D3867th Mexican-ch Open 20228.1
Obregon Rivero,J2536Quesada Perez,L25170–12022C4567th Mexican-ch Open 20228.2
Cori Quispe,K2492Gonzalez Zamora,J25441–02022B0667th Mexican-ch Open 20228.3
Hernandez Guerrero,G2564Torres Rosas,L23561–02022C0067th Mexican-ch Open 20228.4
Garcia Guerrero,I2338Cordova,E25340–12022A4067th Mexican-ch Open 20228.5
Salinas Herrera,P2517Figueredo Losada,L23421–02022B0767th Mexican-ch Open 20228.6
Morales Garcia,S2246Ibarra Chami,L24510–12022D3867th Mexican-ch Open 20228.7
Perez Gormaz,M2404Fernandez Hernandez,A2376½–½2022B0567th Mexican-ch Open 20228.8
Gonzalez Arroyo,L2210Galaviz Medina,S23740–12022B5367th Mexican-ch Open 20228.9
Avila Bautista,R2090Diaz Villagran,R2318½–½2022A1567th Mexican-ch Open 20228.10
Maass Garza R,A2265Jorajuria Mendoza,A20060–12022D0467th Mexican-ch Open 20228.11
Sandoval Mercado,C2289Avila Rodriguez,J2182½–½2022E0467th Mexican-ch Open 20228.12
Silva Hernandez,J2006Diaz Rosas,J23930–12022A4567th Mexican-ch Open 20228.13
Gongora Montes,B2157Benitez Lozano,J23091–02022E2167th Mexican-ch Open 20228.14
Hernandez Guerrero,E2232Hernandez Jimenez,A21671–02022C8467th Mexican-ch Open 20228.15
Montes Orozco,M1914Lopez Raygoza,L2207½–½2022D2067th Mexican-ch Open 20228.16
Quiroga Jaquez,A2185Rascon Vega,A21070–12022A4967th Mexican-ch Open 20228.17
Guerrero Cataldo,J1976Luna Javier,E2148½–½2022B2267th Mexican-ch Open 20228.18
Palma Villanueva,M2210Davalos Prieto,A2103½–½2022B3167th Mexican-ch Open 20228.19
Cruz Gomez,M2028Paredes Guzman,F18910–12022B1367th Mexican-ch Open 20228.20
Gonzalez Cruz,I1814Tapie Amione,P22410–12022E3267th Mexican-ch Open 20228.21
Bayona Ordonez,A-Flores Guerrero,J22510–12022E3267th Mexican-ch Open 20228.22
Rosales Campos,P2039Garduno Huerta,J16221–02022C4967th Mexican-ch Open 20228.23
Avila Fraire,A1955Guillen Cristobal,S19330–12022B8967th Mexican-ch Open 20228.25
Real Pereyra,D2049Guerrero Rodriguez,A20190–12022B7067th Mexican-ch Open 20228.26
Corrales Jimenez,Z2151Ortega Beltran,X1725½–½2022B3567th Mexican-ch Open 20228.27

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Carlos Colodro is a Hispanic Philologist from Bolivia. He works as a freelance translator and writer since 2012. A lot of his work is done in chess-related texts, as the game is one of his biggest interests, along with literature and music.
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