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Ruy Lopez, Open (Tarrasch) Defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4

In each game under Location you see masterchessopen.com but it's not a valid website, so please don't use it. Claus Gamborg, Jan. 2023

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#WhiteRatingBlackRatingResultMovesECOTournamentDate
629Ostrowska Dominik...1882Wyczawska Agata (...18191-027 ≣C70Ch Poland (team) ...09 Jul 2008
259Osmer JensRehbein Malte1-018 ≣C70Ch Bremen (junior...
526Osbourne SamGarcia Jose Manuel0-111 ≣C70Ch European Union
609Ortegon Juan Carlos1882Rojas Barrero And...22230-121 ≣C70It (open)12 Jan 2008
678Omeri Silvan (ITA)2137Ceccarini Marco (...20751-023 ≣C70It (open)
169Olsson Ake (SWE)2255Wiedenkeller Mich...24730-122 ≣C70Ch Sweden
165Olesen Martin (DEN)2304Brynell Stellan (...24910-121 ≣C70It (open)
741Oiveira Renato De...2101Leite Joao Carlos...17721-028 ≣C70Memorial Bobby Fi...10 Mar 2012
199Offinger Robert (...2214Shirazi H1-024 ≣C70Ch Pfalz
451Oakes AshleyCutting Luke1-027 ≣C70Ch ACT
88NymanSkold Kristian (SWE)23400-127 ≣C70?
173Nunn John D M (ENG)2575Karl Hans (SUI)23601-021 ≣C70It (open)
569Nunez Daniel (COL)2171Loza Diego1-023 ≣C70Ch Pan-American (...08 Aug 2006
744Ntalabiras Spiros1815Maxilaris Vasilios10051-026C70Tournament (open)24 Mar 2012
280Nock DavidSoutham David (CAN)20860-128 ≣C70Ch Ontario
303Nilsson Anders (SWE)2194Welin Mats (SWE)22511-019 ≣C70It (open) (b)
663Nikitinyh Boris (...2226Vlasov Egor (RUS)22831-025 ≣C70Ch Chigorin Chess...25 May 2009
454Nijboer Friso (NED)2553Smeets Jan (NED)24671-028 ≣C70Ch Netherlands (o...
593Nietsch Horst (GER)2028Schacht Thomas (GER)16781-013C70It (open) \19 May 2007
531Niemeyer Sarah (GER)1754Kroemker Lars1-027 ≣C70Tournament (Gr.7)16 May 2005
556Niechoj Norbert (...2107Huebner Wolfgang ...21910-126 ≣C70It (open) (seniors)05 Mar 2006
657Nicolleau MathiasMahe Romain (FRA)19810-119 ≣C70It (open)17 Apr 2009
355Nicolas RobertoChari Sebastian1-019 ≣C70It (open)
533Nguyen Thao Luong...Nguyen Thu Anh Tu...1-025 ≣C70Ch Vietnam (junio...
688Nguyen Anh KhoiDuong Trieu An1-018C70Tournament (Elo) (a)
264Nevanlinna Risto ...2252Jarnefelt Wilhelm...18701-016 ≣C70Ch Club
181Nevanlinna Risto ...2252Ronnqvist Timo1-023 ≣C70It (open)
627Negi Parimarjan (...2597Becerra Rivero Ju...26021-026 ≣C70It (open)29 Jun 2008
115Nathan RCollett R0-115 ≣C70Ch Great Britain ...
746Narvaez Faber Alb...2160Forero Beltran Jo...17831-025 ≣C70It \08 Apr 2012
139Myers TMoroney S0-122 ≣C70It (open)
129Myers Hugh EdwardPena Gomez Manuel...24061-022 ≣C70It
560Murray FindlaySykes Chris (SCO)19371-017 ≣C70Ch East of Scotland
700Mukhametzhanov Ma...2002Shirokov Yury (RUS)18671-025 ≣C70Tournament (open)
520Mueller Philip (SUI)2090Karl Hans (SUI)22830-122 ≣C70Ch Switzerland (t...07 Nov 2004
196MuellerBulow G1-028 ≣C70corr.
60MorrisonIsaacs Lewis1-016 ≣C70?
212Moroz Alexander (...2285Huzman Alexander ...24651-026 ≣C70Ch Ukraine
283Moreno Carnero Ja...2519Moisset Gaston1-027 ≣C70Ch Argentina (jun...
536Moranda Wojciech ...2451Yahya Mohamed Sal...21361-024 ≣C70Ch World (juniors...19 Jul 2005
647Monkhbat ChogdorKang Jinsoo15891-028 ≣C70It (open)01 Dec 2008
314Momeni Hadi (IRI)2315Effatian Mehdi (IRI)22001-025 ≣C70It (open) \
448Molin Laurent (FRA)1839Viard Maxime (FRA)18931-020 ≣C70It (open) (b)
251Mokcsay Robert (HUN)2264Szabo Zsolt (HUN)21960-120 ≣C70It (open) (junior...
626Modes AndreCosta Leonardo1-019C70Ch Paulista (final)28 Jun 2008
479Mirzaei Saleh (IRI)2047Ayesha Eassa Mohd1-011C70It (open) (juniors)
501Mingorance Torres...1753Fernandez Flores ...1-013C65It (open)
2Minckwitz Johanne...Lange Max (GER)1-027C70?
737Milligan Helen (NZL)1979Ansell Alan (NZL)20790-121 ≣C70It (open)22 Jan 2012
487Mihalichenko Blad...2308Kozlov Yriy (UKR)22880-122 ≣C70Ch Club \
7Mieses SMeitner Philipp (...1-024 ≣C70?
5Mieses SFlechsig E1-027 ≣C70?
24Mieses Jacques (GER)Kirschner Heinrich1-028 ≣C70?
726Mierins Eriks (LAT)2109Slusnys Evaldas (...18941-018 ≣C70Cup Baltija (open)23 Jun 2011
659Miculka David (CZE)1607Barta Tomas14591-026 ≣C70Czech League 2008...25 Apr 2009
44Meyer Lars A (DEN)2284Helms H0-123 ≣C70?
670Meszaros Ferenc (...1909Agoston Aron (SRB)19800-118 ≣C70It (open) (b)20 Jul 2009
705Mesar Antun (CRO)1652Barbaric Tomislav1-020 ≣C70It (open) (junior...03 Dec 2010
413Menendez Miranda ...Vazquez Alonso Ad...19041-027C70Ch Asturia
406Menendez Miranda ...Fernandez Miguel ...22111-018 ≣C70Ch Spain (team) (...
743Mejia Garcia Mich...1985Garcia Rivera Man...1-015 ≣C70Ch Department (ju...23 Mar 2012
29Meitner Philipp (...Schlechter Carl (...0-126 ≣C70?
309Meier Kurt (SEY)1991Krebs Jean-Francois1-011 ≣C70It (open)
298Mehltreter OttoComputer \0-128 ≣C70Simultan
723Meghara LyliaDaouda Sabar Ousm...20971-028 ≣C70Zt28 May 2011
400Meczynski Waldema...2236Cybulak Adam (POL)22701-018 ≣C70Ch Poland (team) ...
471McShane Luke J (ENG)2568Computer \13671-028 ≣C70Match \21 Jun 2002
462McKenzie Colin (AUS)Palit Vikram (AUS)0-125 ≣C70Ch Australia (res...
223McDonald Neil R (...2360Flear Christine (...21951-028 ≣C70Ch Great Britain
383Matejovic Juraj (...2243Bobak Martin15701-018 ≣C70Ch Slovakia
394Mate Gyula (HUN)2109Pinter Mark (HUN)20591-028C70Ch Hungary (team)...
506Martin Perez Javi...2232Pena Dieguez Manu...20601-013 ≣C70It (open)30 Mar 2004
605Martinez Martinez...2144Penas Hernandez X...21931-014 ≣C70Tournament (Elo) \17 Nov 2007
405Martinez MarianoOjer Lora Iker (ESP)20260-127 ≣C70Ch Spain (qual.)
213Martin Del Campo ...2210Alvarez Fernandez...23571-027 ≣C70Simultan
711Martin Arranz Llu...1768Guix Torres David...19970-120 ≣C70Tournament (open) \21 Jan 2011
80Martin Andrew D (...2399Almgren Sven1-025 ≣C70?
155Marjanovic Slavko...1949Komnenic Branko (...22981-023 ≣C70It (open)
476Marinsek Tomaz (SLO)2214Ursic Mateja (SLO)19931-022 ≣C70Ch Slovenia (team...21 Nov 2002
172Maresca FilippoRallo V1-021 ≣C70Ch Italy
577Marcin Marian (SVK)1987Mertens Tomas (SVK)19540-127 ≣C70Ch Slovakia (team...16 Dec 2006
503Mannion Stephen R...2357Harstad Christian...21091-023 ≣C70It \05 Feb 2004
586Manetto Luis (ENG)1592Pettersen Joar Gu...20270-121 ≣C70It (open) \01 Feb 2007
488Manet Eric (FRA)2070Dupuis Dominique ...20180-123 ≣C70It (open)
753Makropoulou Marin...2248Lemani Eirini (GRE)12401-021 ≣C70Ch Greece (team)04 Jul 2012
168Maki Veijo (FIN)2370Riihimaki Seppo1-027 ≣C70?
390Magem Badals Jord...2528Moya Soriano Migu...22751-022 ≣C70Ch Spain (team) (...
353Madl Ildiko (HUN)2375Mikhalevski Alexa...24700-122 ≣C70It (cat.7)
352Madl Ildiko (HUN)2375Forgo Eva (HUN)22851-024 ≣C70Ch Hungary (w)
15Mackenzie George ...Zukertort Johanne...1-028 ≣C70It
692Lupan NikitaBardan Dmitriy0-127 ≣C70Ch Ukraine (junio...06 May 2010
301Lukac Roman (SVK)2165Petrik Matus19901-015 ≣C70Ch Slovakia (team...
714Lucci Bruno WGuimaraes Ricardo A0-123 ≣C70It (open)03 Apr 2011
52LowenborgEnglund Fritz0-127 ≣C70?
548Lovejoy David (AUS)2004Bielenberg Nathanael1-023 ≣C70Ch Australia (major)
718Lorenzo De La Riv...2383Olle Castillo Sal...17621-025 ≣C70Tournament (open) \26 Apr 2011
354Lopez Del Barrio ...2125Folch Zaragoza Jo...19611-023 ≣C70It (open)
742Lon RonnyNielsen Hogni Eig...19780-128 ≣C70Ch Faroe Islands ...11 Mar 2012
36Loman Rudolf J (NED)Neumann Augustin ...0-127 ≣C70It
1Loewenthal Johann...Brien1-023 ≣C70?