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Nimzo-Indian, Sämisch Variation, 4.a3 Bxc3+ 5.bxc3 c5 6.e3 Notation: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3

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
784Vrajitoru Vlad-La...653Tiron Lucian-Ilie5510-124 ≣E41Ch Romania (juniors)14 Apr 2008
864Grochowski Marius...1919Tarajkiewicz Krzy...14661-029 ≣E41It (open)17 Jul 2010
820Ruiz Rodriguez Fe...Norte Garcia Andr...17040-131 ≣E41Tournament (open)...09 May 2009
707Hogg StephenDonohue Tom (SCO)17150-127 ≣E41It (open)06 Mar 2005
464Bernardino LOliveira Vera (POR)17151-018 ≣E41Ch Coimbra (team)
869Navrotescu Andree...1910Aseeva Anastasia ...17631-026 ≣E41Ch Europe (junior...23 Sep 2010
826Bisaro Andrea (ITA)1702Del Forno Sinicco...17851-041 ≣E41Tournament (open)11 Jul 2009
920Feliciano Vanessa...2194Da Cruz Karoliny ...17991-024 ≣E41Ch Brazil (w)22 Mar 2012
860Swiech Przemyslaw...1448Bartoszek Marcin ...18011-013 ≣E41Ch Poland (team) ...08 Jul 2010
933Perena Catherine ...2091Mendoza Shania Ma...18061-035 ≣E41Ch Philippines (w)16 Jul 2012
874Jansen Lauritz (GER)1790Grigorian Spartak...18351-022 ≣E41Ch Germany (junio...29 Dec 2010
753Vishnyakov Igor (...2182Konyukhov Mikhail...18521-021 ≣E41Memorial Polyak17 Jan 2007
863Patzelt Nikolaus ...1876Bonk Andras (GER)18591-052 ≣E41Memorial Karl Mal...11 Jul 2010
862Musialkiewicz Jan...2104Borawski Jakub (POL)18670-121 ≣E41Ch Poland (team) ...10 Jul 2010
722Orsi Matteo (ITA)1877Torrione William ...18831-026 ≣E41It (open) (b)30 Oct 2005
825Bisaro Andrea (ITA)1702Pillon Giovanni P...18900-146 ≣E41Tournament (open)07 Jul 2009
483Sustek Vladimir (...1959Csefalvay Stefan ...19160-163 ≣E41Ch Slovakia (open)
931Janzelj Lara1745Brankovic Slavoljub19201-066 ≣E41Ch Central Serbia...10 Jul 2012
796Praszak Michal (POL)2216Zmarzly Aleksandr...19321-035 ≣E41It (open) (a)21 Aug 2008
866Huebner Alan-Ari ...1617Lang Martin (GER)19370-147 ≣E41It (open) \07 Aug 2010
751Shapran Nikita (RUS)1892Gutsuliak Yana (RUS)19490-133 ≣E41Memorial T.Petros...
661Nuber Blasius (GER)2303Ulmer Micha (GER)19591-072 ≣E41Ch Germany (junio...
392Urbatsch MarkSobczak Miroslaw ...19621-027 ≣E41corr.
694De Barros Frederi...2073Schmouchkovitch C...19621-021 ≣E41It (open)14 Jul 2004
843Swiech Przemyslaw...1448Grudzien Piotr (POL)19771-027 ≣E41Ch Poland (junior...09 Mar 2010
743Olshevskiy Maxim ...2039Rodionov Georgy (...19811-088 ≣E41Ch Ukraine (junio...06 Nov 2006
790Colin Vincent (FRA)2421Primel Dominique ...19851-025 ≣E41It (open)
72Primavera Giusepp...Mueller Klaus (GER)20100-152 ≣E41Olympiad26 Aug 1952
153Ben Hassan ALund Per (DEN)20150-124 ≣E41Olympiad (student...
922Kleine Bruna Fern...1893Ribeiro Regina (BRA)20200-125 ≣E41Ch Brazil (w)25 Mar 2012
762Huynh Lam Binh Ng...2021Tran Quang Khai (...20251-035 ≣E41Ch Vietnam (junio...07 Jul 2007
434Minzer Claudio Ja...2370Aberbach Angel (ARG)20301-027 ≣E41It (open)
634Cvetkovic Ivana (...Franciskovic Bork...20501-053 ≣E41Ch Croatia (team)...
274Schuster Carlos (...2294Moscovich Fabian ...20501-026 ≣E41Ch Argentina (und...
540Vladimirov Boris ...2340Abzhirko Nikolay ...20571-047 ≣E41It (seniors)
481Molinari Gianfran...2085Blevinal T20600-139 ≣E41Tournament
703Regis Georg (GER)2129Schmidt Gerhard (...20621-065 ≣E41Oberliga East B 2...14 Nov 2004
711Vernay Gaspard (FRA)1627Lemeille Francois...20720-133E41Ch France (team) ...14 May 2005
572Bank Friis Carste...2269Vovk Oksana (DEN)20751-024 ≣E41Ch Denmark (cand.)
712Navarro Nicolas V...2182Adekola Adedeji (...20800-151 ≣E41It \24 May 2005
586Danielsen Arne (NOR)2243Lilleoren David (...20800-142 ≣E41Ch Norway (team) ...
836Ezat Mohamed (EGY)2459Ameir Moheb (EGY)20881-050 ≣E41Ch Arab Cities29 Oct 2009
800Neverov Valeriy (...2571Constantin David ...20911-046 ≣E41It (open) \13 Sep 2008
519Jugow Alexander (...2230Weiler Ludwig20951-038 ≣E41Ch Hessen (seniors)
542Laudati APienabarca Nicola...21060-188 ≣E41It (open)
705Seidl Juergen (GER)2181Schubert Dieter21101-027 ≣E41Bayern Regionalli...12 Dec 2004
566Henriksson Svante...2151Johansson Jukka (...21171-037 ≣E41It (open)
297Popp Klaus2200Weigel Herbert (GER)21181-031 ≣E41Ch Mittelfranken
871Romero OscarCastaneda Jorge L...21230-153 ≣E41Ch Pan-American (...18 Nov 2010
928Castaneda ReinaldoPinero Carlos21280-156 ≣E41Ch Venezuela (exp...19 Jun 2012
404Dreyer Martin (NZL)2275Metge J Nigel (NZL)21301-039 ≣E41Ch New Zealand
243Dittmann Hans-Ado...2170Groenegres Wilfri...21340-142 ≣E41It (b)
370Efimov Igor (MNC)2395Andreoli Renato (...21380-126 ≣E41It (open)
698Lane Peter Christ...2044Brown Alan (ENG)21390-152 ≣E41It \07 Sep 2004
855Azevedo Eduardo J...1959Palacio Igor Da P...21430-147 ≣E41It (open)04 Jun 2010
603Boskovic Martin (...1999Siegmund Rainer (...21430-128 ≣E41It (open)
609Fernandez Juan C ...2410Gonzalez Aguirre ...21440-163 ≣E41It (open)
559Dias Paulo (POR)2295Neto Horacio (POR)21570-126 ≣E41Ch City
687Pushin Vladimir (...2231Kiselev Vitaliy (...21621-035 ≣E41Ch Russia (junior...
585Chiong Luis (PHI)2387Divljan Igor (YUG)21651-032 ≣E41It (open)
574Andersen Ejnar (DEN)2111Petersen Steen (DEN)21660-126 ≣E41Tournament
616Petritaj Ferdinan...2194Van Hoolandt Patr...21691-028 ≣E41It (open)
640Tsadzikidze Natia...2308Epitashvili Ketev...21731-051 ≣E41Ch Georgia (w)02 Apr 2001
378Borulya Ekaterina...2308Tsiganova Monika ...21730-145 ≣E41Ch URS (w)
601Moskalenko Viktor...2508Bevia Luis Martin...21731-031 ≣E41It (open)
900Siebrecht Sebasti...2471Illijin Neboisa (...21741-069 ≣E41Ch Switzerland (o...12 Jul 2011
780Olarasu Ioana (ROM)1820Baciu Anca-Otilia...21770-134 ≣E41Ch Romania (w)25 Feb 2008
856Doelker Kai (GER)1723Gruenter Martin (...21780-126 ≣E41Ch Germany (junio...06 Jun 2010
171Kanko Ilkka (FIN)2231Ofstad Per (NOR)21821-028 ≣E41Zt
524Punteri Marco (ITA)2049De Bortoli Peter ...21831-027 ≣E41Ch Italy (juniors)
514Khairunnisa W (MAS)1967Mouradian Knarik ...21851-042 ≣E41Olympiad (w)
793Spirin Oleg (RUS)2438Andersen Morten (...21871-042 ≣E41Cup North Sea (open)16 Jul 2008
684Eriksson Johan (SWE)2423Lappalainen Tommy...21881-024 ≣E41Cup Rilton
467Pyka Andreas (GER)2056Esser Norbert (GER)21880-138 ≣E41Cup Germany
656Deruelle Sala Alb...2158Lozano Arribas Ca...21880-142 ≣E41It (open)
890Dobos Jozsef (HUN)2272Kelemen Gabor (HUN)21890-141 ≣E41Ch Hungary (team)...01 May 2011
898Ezat Mohamed (EGY)2434Ameir Moheb (EGY)21921-043E41It \05 Jul 2011
845Horvath Jeno Kalm...2048Charleshouse Glen...21921-027 ≣E41It (open) \23 Mar 2010
582Winiwarter Felix ...2225Pilaj Herwig (AUT)21970-138 ≣E41It (open)
504Sutter TobiasRehl Danny (GER)21971-037 ≣E41Badische ch (juni...
303Anderson AnthonyAlmeida Jose T (POR)21980-142 ≣E41Ch World (team) (...
677Ruchkin Yuri (RUS)2238Makhianov Vadim (...22011-026 ≣E41Ch Russia (1/2 fi...
759Rodrigo Edson (BRA)1962Gallo Ponce Elber...22020-1103 ≣E41It (open)27 May 2007
450Sarmiento Alfonso...2230Garcia Padron Jua...22020-141 ≣E41It (open)
383Winiwarter Felix ...2176Titz Heimo (AUT)22021-062 ≣E41Staatsliga
700Tregubov Vadim (UKR)2390Yaremko Nazar (UKR)22030-140 ≣E41Ch Ukraine (junio...
360Kanko Ilkka (FIN)2231Manni Matti (FIN)22061-046 ≣E41Ch Finland (team)
861Swiech Przemyslaw...1448Obrusnik Michal (...22100-140 ≣E41Ch Poland (team) ...10 Jul 2010
342Hill Robin (AUS)2175Parsonage Ian (AUS)22151-076 ≣E41Ch Australia
813Zell StefanFrombach Ralf (GER)22160-1114 ≣E41NRW-liga 2008/0901 Mar 2009
505Eriksson Johan (SWE)2310Nordstrom Felix (...22200-125 ≣E41Ch Sweden (master...
671Sailer Mike (USA)2136Dimitrijevic Dark...22211-025 ≣E41It (open)
402Rodrigues JPOliveira Antonio ...22221-033 ≣E41It (open)
363Stelzer Harald (GER)2272Lex Christoph (GER)22231-047E41Bundesliga 1988/8...
911Abdel Razik Khale...2423Omorere Benjamin ...22231-043 ≣E41Tournament \10 Sep 2011
721Ruether Rudolf (GER)2188Kaiser Matthias (...22251-046 ≣E41Bayern Landesliga...23 Oct 2005
604Toth Bela (ITA)2389Kluss Kai (GER)22271-030 ≣E41Bundesliga (2nd) ...
499Chiong Luis (PHI)2390Perez Roland22301-031 ≣E41It (open)
304McCambridge Vince...2465Contin Daniel (ITA)22301-044 ≣E41Ch World (team) (...
781Sokolov Ivan (NED)2650Bakker Sven (NED)22321-030 ≣E41Ch Netherlands (t...08 Mar 2008