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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
6Goldstein Maurice...Cornforth John Wa...0-149 ≣E41Ch Australia07 Jan 1937
72Primavera Giusepp...Mueller Klaus (GER)20100-152 ≣E41Olympiad26 Aug 1952
98Kovacs Laszlo M (...2339Cala' Ugo1-025 ≣E41Olympiad12 Sep 1954
124Johannessen Svein...2273Gislason Sigurgei...1-040 ≣E41Olympiad16 Sep 1956
571Andrade Romo Anib...2034Bastidas Rodrigue...22450-119 ≣E41Tournament \18 Sep 1998
640Tsadzikidze Natia...2308Epitashvili Ketev...21731-051 ≣E41Ch Georgia (w)02 Apr 2001
662Koczo Kristof (HUN)2081Nemeth Miklos (HUN)22900-125 ≣E41Ch Hungary (junio...30 Mar 2002
663Rattray Gordon2055McKay Roderick M ...23710-121 ≣E41Ch West Scotland26 May 2002
685Le Roux Jean-Pier...2460Bagheri Amir (FRA)24961-020 ≣E41It (cat.11)16 Feb 2004
693Santos Marcus Vin...2334Frenklakh Valery ...22961-019 ≣E41It20 Jun 2004
694De Barros Frederi...2073Schmouchkovitch C...19621-021 ≣E41It (open)14 Jul 2004
695Santos Marcus Vin...2334Rosito Jorge (ARG)24031-032 ≣E41It06 Aug 2004
696Le Roux Jean-Pier...2460Lautier Joel (FRA)26820-125 ≣E41Ch France22 Aug 2004
697Losev Sergey (RUS)2117Emeljanova M1-029 ≣E41Ch Moscow Region ...30 Aug 2004
698Lane Peter Christ...2044Brown Alan (ENG)21390-152 ≣E41It \07 Sep 2004
699Santos Marcus Vin...2334Tsuboi Edson Kenj...23871-059 ≣E41It (cat.5)17 Oct 2004
703Regis Georg (GER)2129Schmidt Gerhard (...20621-065 ≣E41Oberliga East B 2...14 Nov 2004
705Seidl Juergen (GER)2181Schubert Dieter21101-027 ≣E41Bayern Regionalli...12 Dec 2004
707Hogg StephenDonohue Tom (SCO)17150-127 ≣E41It (open)06 Mar 2005
711Vernay Gaspard (FRA)1627Lemeille Francois...20720-133E41Ch France (team) ...14 May 2005
712Navarro Nicolas V...2182Adekola Adedeji (...20800-151 ≣E41It \24 May 2005
719Longa Yauca Javie...2324Rivas Pastor Manu...24610-157 ≣E41It (open)25 Aug 2005
721Ruether Rudolf (GER)2188Kaiser Matthias (...22251-046 ≣E41Bayern Landesliga...23 Oct 2005
722Orsi Matteo (ITA)1877Torrione William ...18831-026 ≣E41It (open) (b)30 Oct 2005
743Olshevskiy Maxim ...2039Rodionov Georgy (...19811-088 ≣E41Ch Ukraine (junio...06 Nov 2006
749Chiong Luis (PHI)2364Paciencia Enrique...24320-141 ≣E41It (open)26 Dec 2006
750Ganaus Hannes (AUT)2326Slaby Jerzy (POL)24370-155 ≣E41It (open)29 Dec 2006
753Vishnyakov Igor (...2182Konyukhov Mikhail...18521-021 ≣E41Memorial Polyak17 Jan 2007
759Rodrigo Edson (BRA)1962Gallo Ponce Elber...22020-1103 ≣E41It (open)27 May 2007
762Huynh Lam Binh Ng...2021Tran Quang Khai (...20251-035 ≣E41Ch Vietnam (junio...07 Jul 2007
770Name Gabriel (BRA)2241Tsuboi Edson Kenj...23340-141 ≣E41It (open)17 Nov 2007
771Usoltseva Polina ...1842Dzemliuk Elena1-050 ≣E41Ch Ukraine (junio...18 Nov 2007
775Ipatov Alexander ...2265Golubka Petr (UKR)22701-051 ≣E41Ch Ukraine (junio...06 Dec 2007
776Ganaus Hannes (AUT)2294Moranda Wojciech ...25330-145 ≣E41Ch Europe (active)15 Dec 2007
780Olarasu Ioana (ROM)1820Baciu Anca-Otilia...21770-134 ≣E41Ch Romania (w)25 Feb 2008
781Sokolov Ivan (NED)2650Bakker Sven (NED)22321-030 ≣E41Ch Netherlands (t...08 Mar 2008
784Vrajitoru Vlad-La...653Tiron Lucian-Ilie5510-124 ≣E41Ch Romania (juniors)14 Apr 2008
786Hasanova Turkan (...1897Timman Jan H (NED)25800-143 ≣E41Cup President13 May 2008
793Spirin Oleg (RUS)2438Andersen Morten (...21871-042 ≣E41Cup North Sea (open)16 Jul 2008
796Praszak Michal (POL)2216Zmarzly Aleksandr...19321-035 ≣E41It (open) (a)21 Aug 2008
797Manfredi Vincenzo...2206Tatai Stefano (ITA)23621-043 ≣E41It (open)27 Aug 2008
800Neverov Valeriy (...2571Constantin David ...20911-046 ≣E41It (open) \13 Sep 2008
801Yurkov Alexey (UKR)2174Minenko Andrey (RUS)23261-052 ≣E41Ch Ukraine (junio...02 Oct 2008
802Berczes David (HUN)2514Jurek Josef (CZE)23541-054 ≣E41It (open)04 Oct 2008
803Li Ruofan (SIN)2426Vasilevich Tatjan...23680-112 ≣E41World Mindsports ...08 Oct 2008
813Zell StefanFrombach Ralf (GER)22160-1114 ≣E41NRW-liga 2008/0901 Mar 2009
820Ruiz Rodriguez Fe...Norte Garcia Andr...17040-131 ≣E41Tournament (open)...09 May 2009
822Ryklis BorisKolmakov Pavel (RUS)22680-122 ≣E41It (open) \19 Jun 2009
825Bisaro Andrea (ITA)1702Pillon Giovanni P...18900-146 ≣E41Tournament (open)07 Jul 2009
826Bisaro Andrea (ITA)1702Del Forno Sinicco...17851-041 ≣E41Tournament (open)11 Jul 2009
836Ezat Mohamed (EGY)2459Ameir Moheb (EGY)20881-050 ≣E41Ch Arab Cities29 Oct 2009
843Swiech Przemyslaw...1448Grudzien Piotr (POL)19771-027 ≣E41Ch Poland (junior...09 Mar 2010
845Horvath Jeno Kalm...2048Charleshouse Glen...21921-027 ≣E41It (open) \23 Mar 2010
851Torres Sevilla Cr...1943Martin Rodriguez ...1-034 ≣E41Memorial Francisc...25 Apr 2010
855Azevedo Eduardo J...1959Palacio Igor Da P...21430-147 ≣E41It (open)04 Jun 2010
856Doelker Kai (GER)1723Gruenter Martin (...21780-126 ≣E41Ch Germany (junio...06 Jun 2010
857Gongora Maikel (CUB)2468Morales Rolando (...22651-042 ≣E41Memorial J.Capabl...16 Jun 2010
860Swiech Przemyslaw...1448Bartoszek Marcin ...18011-013 ≣E41Ch Poland (team) ...08 Jul 2010
861Swiech Przemyslaw...1448Obrusnik Michal (...22100-140 ≣E41Ch Poland (team) ...10 Jul 2010
862Musialkiewicz Jan...2104Borawski Jakub (POL)18670-121 ≣E41Ch Poland (team) ...10 Jul 2010
863Patzelt Nikolaus ...1876Bonk Andras (GER)18591-052 ≣E41Memorial Karl Mal...11 Jul 2010
864Grochowski Marius...1919Tarajkiewicz Krzy...14661-029 ≣E41It (open)17 Jul 2010
866Huebner Alan-Ari ...1617Lang Martin (GER)19370-147 ≣E41It (open) \07 Aug 2010
869Navrotescu Andree...1910Aseeva Anastasia ...17631-026 ≣E41Ch Europe (junior...23 Sep 2010
871Romero OscarCastaneda Jorge L...21230-153 ≣E41Ch Pan-American (...18 Nov 2010
874Jansen Lauritz (GER)1790Grigorian Spartak...18351-022 ≣E41Ch Germany (junio...29 Dec 2010
890Dobos Jozsef (HUN)2272Kelemen Gabor (HUN)21890-141 ≣E41Ch Hungary (team)...01 May 2011
892Ilic Dragan (SRB)2388Govedarica Radova...23891-028 ≣E41Cup Serbia (team)20 May 2011
893Dupre Paul Donald...2037Arkell Keith C (ENG)24090-114 ≣E41It (open)27 May 2011
895Ezat Mohamed (EGY)2434Belouadah Saad (ALG)22870-141 ≣E41Ch Africa08 Jun 2011
896Yargici Mazhar Ku...1921Emiroglu Cankut (...22421-053 ≣E41Ch Turkey (team)02 Jul 2011
897Nyvlt Otto (CZE)1986Sodoma Jan (CZE)23800-132 ≣E41It \03 Jul 2011
898Ezat Mohamed (EGY)2434Ameir Moheb (EGY)21921-043E41It \05 Jul 2011
900Siebrecht Sebasti...2471Illijin Neboisa (...21741-069 ≣E41Ch Switzerland (o...12 Jul 2011
904Ezat Mohamed (EGY)2434Nabaty Tamir (ISR)25630-141 ≣E41Ch World (team)18 Jul 2011
905Yefimov Mstislav ...2168Szymanski Marcin ...24160-147 ≣E41It (open)06 Aug 2011
911Abdel Razik Khale...2423Omorere Benjamin ...22231-043 ≣E41Tournament \10 Sep 2011
920Feliciano Vanessa...2194Da Cruz Karoliny ...17991-024 ≣E41Ch Brazil (w)22 Mar 2012
922Kleine Bruna Fern...1893Ribeiro Regina (BRA)20200-125 ≣E41Ch Brazil (w)25 Mar 2012
923Kaidanov Gregory ...2588Gerzhoy Leonid (CAN)24951-047 ≣E41It (open)05 Apr 2012
928Castaneda ReinaldoPinero Carlos21280-156 ≣E41Ch Venezuela (exp...19 Jun 2012
931Janzelj Lara1745Brankovic Slavoljub19201-066 ≣E41Ch Central Serbia...10 Jul 2012
933Perena Catherine ...2091Mendoza Shania Ma...18061-035 ≣E41Ch Philippines (w)16 Jul 2012
278Toth Bela (ITA)2400Csom Istvan (HUN)25000-140 ≣E41It \
511Semmel MarkusDoery Jeno (HUN)23400-141 ≣E41It (open)
481Molinari Gianfran...2085Blevinal T20600-139 ≣E41Tournament
298Psakhis Lev (ISR)2540Plaskett Jim (ENG)24800-126 ≣E41?
269Barbero Gerardo F...2441Panno Oscar (ARG)25400-144 ≣E41It (open)
414Wills ColinGilmour Duncan1-041 ≣E41Ch Belconnen
463Sukudian RubenGomez Baillo Jorg...24200-141 ≣E41It (open) \
540Vladimirov Boris ...2340Abzhirko Nikolay ...20571-047 ≣E41It (seniors)
524Punteri Marco (ITA)2049De Bortoli Peter ...21831-027 ≣E41Ch Italy (juniors)
135Pasman MarksKlasups Karlis1-040 ≣E41Ch Riga
33Benko Francisco (...2036Bolbochan Julio (...24400-161 ≣E41It
171Kanko Ilkka (FIN)2231Ofstad Per (NOR)21821-028 ≣E41Zt
619Berg Kurt M (NOR)Royset Paal (NOR)22570-170 ≣E41It (open)
267Szabo Laszlo (HUN)1903Lein Anatoly (USA)25350-142 ≣E41?
634Cvetkovic Ivana (...Franciskovic Bork...20501-053 ≣E41Ch Croatia (team)...
687Pushin Vladimir (...2231Kiselev Vitaliy (...21621-035 ≣E41Ch Russia (junior...
460Ryskin Alexander ...2435Pushkov Nikolai (...25150-134 ≣E41It