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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
174Machacek Petr (CZE)Blatny Frantisek ...21121-030 ≣E20Memorial Gargulak
736Yermishin Viktor ...2410Lao Lenath (FRA)19561-019 ≣E20Memorial Georgiev...05 Sep 2006
61Kottnauer Cenek (...2370Sliwa Bogdan (POL)22351-040 ≣E41Memorial G.Maroczy
452LibertNilsson Nils S (DEN)22600-120E20Memorial I.Bolesl...
653Perchik VladimirKhliastikov Georg...20820-146 ≣E20Memorial I.Stepichev
170Calero I (CUB)Ivkov Borislav (SRB)24160-142 ≣E20Memorial J.Capabl...
857Gongora Maikel (CUB)2468Morales Rolando (...22651-042 ≣E41Memorial J.Capabl...16 Jun 2010
746Pedersen Nicolai ...2510Barrientos Sergio...24210-133 ≣A17Memorial J.Capabl...26 Nov 2006
863Patzelt Nikolaus ...1876Bonk Andras (GER)18591-052 ≣E41Memorial Karl Mal...11 Jul 2010
17Najdorf Miguel (POL)2445Rohacek Vladimir ...1-020 ≣E41Memorial K.Treybal
18Sajtar Jaroslav (...Kottnauer Cenek (...23701-032 ≣E41Memorial K.Treybal
214Nielsen Carl-EvaldOe Oluf (DEN)20610-143 ≣E20Memorial L.Rasmussen
745Calisi Elia (ITA)1884Gambardella Piero...20370-143 ≣E20Memorial Magari12 Nov 2006
29Averbakh Yuri L (...2445Kan Ilia Abramovich0-137 ≣E41Memorial N.Riumin
632Galvan Jesus (PER)2187Lorenzini Martin ...23671-036 ≣E20Memorial Pablo Go...
598Kostadinov George...2097Berry Jonathan (CAN)22871-031 ≣E41Memorial P.Keres ...
692Fletcher ChrisSladek Vaclav (CAN)20580-129 ≣E20Memorial P.Keres ...22 May 2004
753Vishnyakov Igor (...2182Konyukhov Mikhail...18521-021 ≣E41Memorial Polyak17 Jan 2007
659Ganaus Hannes (AUT)2360Danner Georg (AUT)23771-075 ≣E20Memorial Poyntner...
131Geller Efim P (RUS)2455Kholmov Ratmir D ...24321-034 ≣E20Memorial Przepiorka
645Sanchez Rodenas A...1769Vayser Vladimir (...0-135 ≣E20Memorial Shumov (...
138Matchett HGTTanfield G1-030 ≣E20Memorial Stevenson
751Shapran Nikita (RUS)1892Gutsuliak Yana (RUS)19490-133 ≣E41Memorial T.Petros...
795Shirobokov Roman ...2166Lykov Sergey (RUS)22511-049 ≣E20Memorial V.Emshanov
639Kaminik Aleksanda...2245Zifroni Dov (ISR)25480-140 ≣E20Memorial V.Liberz...
468Zaremba Andrie (USA)2348Ward Tom (USA)22650-149 ≣E20n) (b
813Zell StefanFrombach Ralf (GER)22160-1114 ≣E41NRW-liga 2008/0901 Mar 2009
427Schaedler Juergen...2096Mettendorf G1-040 ≣E20Oberliga Baden 19...
472Schelter Thomas (...2170Gebhardt Ulrich (...22250-129 ≣E20Oberliga East 199...
703Regis Georg (GER)2129Schmidt Gerhard (...20621-065 ≣E41Oberliga East B 2...14 Nov 2004
445Saglam BuelentSondors Peteris (...20780-155 ≣E20Oberliga Mittelrh...
446Werner MariaPluemer Detlef (GER)21960-140 ≣E20Oberliga Northeas...
316Hoffmann Alexande...2135Gutsche Klemens0-136 ≣E20Oberliga NRW 1985/86
145Toran Albero Roma...2445De Lange Daan1-030 ≣E20Olympiad
227Lim Kok Ann Dr (SIN)2038Le Marquand22001-025 ≣E20Olympiad
249Garrido FedericoChaves Marcelo Fe...21341-040 ≣E20Olympiad
134Cintron RafaelCardoso Radolfo T...23300-142 ≣E41Olympiad
941Edirisinghe Dulan...2046Meshkov Yuri A (RUS)23900-170 ≣E20Olympiad05 Sep 2012
191Erozbek Akdogan2200Suwandhio Eddy0-140 ≣E20Olympiad
66Doerner CharlesGerman Eugenio (BRA)23150-164 ≣E20Olympiad
165Colon H (PUR)Chipev T (BUL)0-140 ≣E20Olympiad
256Garcia Raimundo (...2327Giardelli Sergio ...23151-041 ≣E20Olympiad
91Milev Zdravko (BUL)2230Olafsson Fridrik ...24340-131 ≣E20Olympiad
124Johannessen Svein...2273Gislason Sigurgei...1-040 ≣E41Olympiad16 Sep 1956
167Kristinsson (ISL)Tsagan T (MNG)1-038 ≣E20Olympiad
166Johannessen Svein...2273Filipov F (BUL)1-041 ≣E20Olympiad
147Wotulo Max A (INA)2245Momo Suren (MGL)0-149 ≣E20Olympiad
146Toran Albero Roma...2445O'Hare E1-031 ≣E20Olympiad
226Garcia Raimundo (...2420Hamann Svend (DEN)24901-041 ≣E20Olympiad
228Sorri Kari Juhani...2251Keeshan M22001-037 ≣E20Olympiad
125Mastichiadis Foti...O'Riordan Kenneth...1-026 ≣E20Olympiad17 Sep 1956
123Mastichiadis Foti...Weichselbaumer Er...0-150 ≣E20Olympiad11 Sep 1956
192Szabo Laszlo (HUN)1903Ortega Ruiz Jose ...22661-041 ≣E20Olympiad
98Kovacs Laszlo M (...2339Cala' Ugo1-025 ≣E41Olympiad12 Sep 1954
92Neu AloyseO'kelly De Galway...24600-146 ≣E20Olympiad
90Maher VLorson Gerhard24750-149 ≣E41Olympiad
377Dreyer Martin (NZL)2275Teo Kok-Siong (SIN)22740-160 ≣E41Olympiad
376Clement CCallychurn J1-062 ≣E20Olympiad
89Kelly TAnderson Frank R ...0-122 ≣E20Olympiad
88Beni Alfred (AUT)2210O'kelly De Galway...24600-134 ≣A17Olympiad
67Szabo Laszlo (HUN)1903German Eugenio (BRA)23151-059 ≣A13Olympiad
45Mastichiadis FotisO'kelly De Galway...24600-141 ≣E20Olympiad
44Mastichiadis FotisEuwe Max (NED)0-134 ≣E20Olympiad
241Lim Kok Ann Dr (SIN)2038Sztekel1-041 ≣E20Olympiad
43Castillo Larenas ...O'kelly De Galway...24600-142 ≣E20Olympiad
375Borici Ylvije (ALB)Mills Natalie (AUS)20290-141 ≣E20Olympiad
72Primavera Giusepp...Mueller Klaus (GER)20100-152 ≣E41Olympiad26 Aug 1952
513Dreyer Martin (NZL)2310Tissir Mohamed (MAR)24540-124 ≣E41Olympiad
251Kretschmar HeinzKramer Haije J (NED)23300-134 ≣E41Olympiad (corr.)
187Kasanen JuhaSoom1-017 ≣E20Olympiad (student...
155Taieb AKuijpers Frans A ...22800-136 ≣E20Olympiad (student...
153Ben Hassan ALund Per (DEN)20150-124 ≣E41Olympiad (student...
154Eriksson GHavansi Erkki E T...22230-144 ≣E20Olympiad (student...
872Burcu Cagatay (TUR)1878Tilicheev Viaches...23430-136 ≣E20Olympiad (under 16)27 Nov 2010
766Prohaszka Peter (...2470Rian Kapriaga (INA)20861-033 ≣E20Olympiad (under 16)12 Aug 2007
765Pak Evgeniy (KAZ)2184Salehian Sina (IRI)20301-064 ≣E20Olympiad (under 16)08 Aug 2007
514Khairunnisa W (MAS)1967Mouradian Knarik ...21851-042 ≣E41Olympiad (w)
606Russell Corey (USA)2314Gulko Boris F (USA)26430-137 ≣E20Oz.com qualifier ...
383Winiwarter Felix ...2176Titz Heimo (AUT)22021-062 ≣E41Staatsliga
382Winiwarter Felix ...2176Gerhold Michael (...22511-035 ≣E41Staatsliga
592Olujic Steve1910Levy David N L (SCO)23100-129 ≣E20Tournament
157Welling ChristopherMueller0-144 ≣A17Tournament
562Legemaat Gert (NED)2216Lambers Gerrit Hans1-026 ≣E20Tournament
144GolschmanGonzales Gil J0-133 ≣E20Tournament
225Huelsmann Josef (...2214Nippgen Georg (GER)22341-029 ≣E20Tournament
481Molinari Gianfran...2085Blevinal T20600-139 ≣E41Tournament
22Lilienthal Andor ...2385Smyslov Vassily (...24941-044 ≣E41Tournament
169Bratcko ICeglar Michael (GER)20000-129 ≣E20Tournament
423Bauerle PHaakonstad O1-030 ≣E20Tournament
127Esposito AlfredoPiro A1-035 ≣E20Tournament
250Bosco Ricardo (ARG)2142Giudici Ernesto (...22801-048 ≣E41Tournament
82Keres Paul (EST)2580Ragozin Viachesla...1-041 ≣E20Tournament
574Andersen Ejnar (DEN)2111Petersen Steen (DEN)21660-126 ≣E41Tournament
571Andrade Romo Anib...2034Bastidas Rodrigue...22450-119 ≣E41Tournament \18 Sep 1998
854Chen Yun (CHN)2181Li Wenliang (CHN)24410-152 ≣E20Tournament \18 May 2010
885Reznik Vladimir (...2170Palchun Grigory (...21941-034 ≣E20Tournament \
247Fodor Istvan (HUN)1988Lepsenyi Lorant (...20550-123 ≣E20Tournament \
778Dommes Vladimir M...2264Gaprindashvili No...20751-031 ≣E20Tournament \18 Jan 2008
911Abdel Razik Khale...2423Omorere Benjamin ...22231-043 ≣E41Tournament \10 Sep 2011
806Arana Garate Jon ...1917Sanz Perez Eduard...21841-049 ≣A40Tournament (a)29 Nov 2008