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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
90Maher VLorson Gerhard24750-149 ≣E41Olympiad
92Neu AloyseO'kelly De Galway...24600-146 ≣E20Olympiad
690Willinger TimO'Reilly Gerard0-168 ≣E20It (open)24 Apr 2004
3Stahlberg Gideon ...Keres Paul (EST)25800-127 ≣A40It
96Balanel Ion (ROM)Olafsson Fridrik ...24340-148 ≣E41Zt
231Haut HKetzscher Roland ...20850-159 ≣E20corr.
100Somogyi Istvan (HUN)2205Barczay Laszlo (HUN)23810-135 ≣E41Ch Hungary
925Sutkovic Damir (BIH)2339Smith Bryan G (USA)24500-152 ≣E20It (open)06 May 2012
102Alster DKolarov Atanas S ...24150-135 ≣E20It
609Fernandez Juan C ...2410Gonzalez Aguirre ...21440-163 ≣E41It (open)
105Geller Efim P (RUS)2455Spassky Boris V (...25480-131 ≣E20Ch URS
106Vladimirov Boris ...2340Kholmov Ratmir D ...24320-141 ≣E20Ch URS (1/2 final)
292Vyzmanavin Alexey...2540Razuvaev Yuri S (...25100-127 ≣E41Ch URS (1 liga)
108Doda Zbigniew (POL)2345Solecki Zbigniew0-134 ≣A17Ch Poland
651Kaminik Aleksanda...2266Ruderfer Mark B (...23440-134 ≣E20Ch Israel (team)
339Kekki Petri (FIN)2335Welin Thomas (SWE)23750-116 ≣E41It (open)
214Nielsen Carl-EvaldOe Oluf (DEN)20610-143 ≣E20Memorial L.Rasmussen
346Palsson B (ISL)2020Adorjan Andras (HUN)25200-133 ≣E41It (open)
253Swindell LMartz William R0-142 ≣E20It \
369Santos Carlos P (...2404Walsh Chris (WLS)21580-124 ≣E20Ch World (juniors...
850Veleski Robert (MKD)2282Cioara Andrei Nes...24260-143 ≣E20It (open) \21 Apr 2010
120Dittmann SieghardPuc Stojan (SLO)22550-156 ≣E20It
121Polugaevsky Lev A...2585Averbakh Yuri L (...24450-132 ≣E20Ch URS
930Cazacu Gabriela (...1814Forthofer Robert ...22590-134 ≣E20It (open)10 Jul 2012
123Mastichiadis Foti...Weichselbaumer Er...0-150 ≣E20Olympiad11 Sep 1956
761Hubel Merten (GER)2093Rueberg Jobst (GER)22230-143 ≣E20It (open)26 Jun 2007
126KabanovBoleslavsky Isaak...0-134 ≣E20Ch Belarus
128Napolitano Mario ...Batik Frantisek0-112 ≣E41?
130Vladimirov Boris ...2340Gipslis Aivars (LAT)24290-128 ≣E20Ch URS (1/2 final)
87Fragoso DarcyVasconcellos Fern...0-158 ≣E20Ch Brazil
132Garcia Balado LShocron Ruben (USA)22590-133 ≣E20Ch Argentina
479Rodrigues Camilo ...2100Taffal Fuad (JOR)20820-145 ≣A40Ch World (juniors)
136Spassky Boris V (...2548Tal Mikhail N (LAT)25200-173 ≣E20Ch URS
619Berg Kurt M (NOR)Royset Paal (NOR)22570-170 ≣E41It (open)
81Szabo Laszlo (HUN)1903Sliwa Bogdan (POL)22350-143 ≣E20It
400Blanco Cesar Augu...2105Roldan Manzo Eddy R0-139 ≣E20Ch Guatemala (may...
637Shevchenko MaksimLanin Alexsej (RUS)21660-126E20Ch Russia (junior...
147Wotulo Max A (INA)2245Momo Suren (MGL)0-149 ≣E20Olympiad
410Markotic Gordan (...2287Kolev Atanas (BUL)25910-119 ≣E41It (open)
149Vladimirov Boris ...2340Shamkovich Leonid...23420-125 ≣E20Ch URS
848Stahnke Axel1412Simmonds Leteisha14240-136 ≣A40It (open) (challe...09 Apr 2010
151Gasztonyi Endre (...2295Vladimirov Boris ...23400-135E41Match \
153Ben Hassan ALund Per (DEN)20150-124 ≣E41Olympiad (student...
158Iljinsky Yaroslav...2270Rosenfeld Isai K0-166 ≣E20Ch URS (1/2 final)
66Doerner CharlesGerman Eugenio (BRA)23150-164 ≣E20Olympiad
161Farias Sergio A (...2220Hollmann Jose0-188 ≣E20Ch Brazil
162Lombardy William ...2435Evans Larry M (USA)24700-142 ≣E20Match
283Kretschmar HeinzDubinin Peter V (...0-138 ≣E41corr.
163Mileika JanisGipslis Aivars (LAT)24290-134 ≣E20Ch Latvia
463Sukudian RubenGomez Baillo Jorg...24200-141 ≣E41It (open) \
713Van Elst Andreas ...2282Fedorchuk Sergey ...25640-150 ≣E20It (open)10 Jul 2005
169Bratcko ICeglar Michael (GER)20000-129 ≣E20Tournament
170Calero I (CUB)Ivkov Borislav (SRB)24160-142 ≣E20Memorial J.Capabl...
439Ceragioli JohnHimes Harold0-130 ≣E20Ch State California
719Longa Yauca Javie...2324Rivas Pastor Manu...24610-157 ≣E41It (open)25 Aug 2005
451Golder Louis (USA)2142Tamarkin Larry S ...20730-129 ≣A40Ch Nassau Chess Club
453AkopianUtemov Vladimir (...23850-129 ≣E41It (open)
456Malo Guillen Jose...2189Kolev Atanas (BUL)24950-157 ≣E20It (open) \
467Pyka Andreas (GER)2056Esser Norbert (GER)21880-138 ≣E41Cup Germany
180Detthow BoDe Freitas Marcio...0-141 ≣E20Zt
748Kocabalkan Tayfun...1653Bapci Hikmet0-125 ≣E20Ch Turkey (1/2 fi...19 Dec 2006
469Zawadski Stephane...2181Marciano David (FRA)24550-154 ≣E20Ch France (team)
298Psakhis Lev (ISR)2540Plaskett Jim (ENG)24800-126 ≣E41?
185Lubienski Tadeusz...2033Salminsh Gedimins...0-135 ≣E20Cup Baltic (corr.)
481Molinari Gianfran...2085Blevinal T20600-139 ≣E41Tournament
480Ilham Abd Hamid (...Ooi Chern Ee (MAS)22200-123 ≣E20Ch Asia (team)
745Calisi Elia (ITA)1884Gambardella Piero...20370-143 ≣E20Memorial Magari12 Nov 2006
190Popovic Petar (SRB)2485Karaklajic Nikola...23030-135 ≣E20It
193Kaminik Aleksanda...2168Shmit Anatoly (LAT)22000-132 ≣E20Ch URS (team)
194Tate LSLudgate Alan (IRL)22650-136 ≣E20Ch Great Britain ...
191Erozbek Akdogan2200Suwandhio Eddy0-140 ≣E20Olympiad
196Morgado Juan J (ARG)2219Castelli Raul (ARG)21000-130 ≣E20Ch Chess Club
730Voss Chantal (GER)1898Rummer Baerbel13120-150 ≣E20Ch Germany (junio...09 Jun 2006
508Wilke MarkusSchaaf Rene (GER)21860-114 ≣A40Ch Hessen (junior...
199Skalkotas Nikolao...2178Cabezudo Carlos0-141 ≣A17Ch World (juniors...
201Maher VincentHenry Paul (IRL)23750-138 ≣E20Ch Ireland
202Oestreich ReinhardSoelter Reinhold ...20720-149 ≣E20Ch OWL
516Sinclair Mark (NZL)2215Smith Robert W (NZL)23050-127 ≣E41Ch New Zealand
204Sikora Jan (CZE)2251Pachman Ludek (GER)22780-134 ≣E20Ch Czechoslovakia
444Thron CarstenHelms Sven (GER)20600-144 ≣E20Ch JBLN East 1993/94
206Nisman Boris I (RUS)2351Karpov Anatoly (RUS)26170-146 ≣A17Ch URS (team)
207Payrhuber KlausBohm Hans (NED)23170-140 ≣E20Ch Europe (juniors)
208Holt EricRomanishin Oleg M...25370-134 ≣E20It (open) (junior...
497Jetzl Joerg (AUT)2203Farago Ivan (HUN)25150-148 ≣E20It (open)
212Szabo Laszlo (HUN)1903Najdorf Miguel (POL)24450-125 ≣E41It
448Borovicka Bohumil...1997Michenka Jozef (CZE)23460-140 ≣E41It (open)
543Lutter Ladislav (...1940Janos Jozef (SVK)21450-168 ≣E20Ch Slovakia (team...
594Tikhanov Adolf (RUS)2235Orlov Vassily (RUS)24310-154 ≣E41It (open) \
137Kunz HorstDorawa Bernhard (...19820-159 ≣E20Ch DDR
536Liardet Fabrice (...2380Ekstroem Roland (...24750-162 ≣E20It (open)
533Reduan Aband MohdHisar Simanjuntak0-136 ≣E41Ch World Cities
10Rudakovsky Iosif ...Lisitsyn Georgy (...0-161 ≣E20Ch URS
433MacKay Ian D (SCO)2289Motwani Paul (SCO)24940-173 ≣E41Ch Scotland
417Petrov Peter2325Christov I0-133 ≣E20corr.
429Belcher EdwardFriedman Josef (USA)21860-160 ≣E20It (open)
560Durao Pedro (POR)2138Damaso Rui (POR)24300-124 ≣E20It (young masters)
139Espinoza CarlosPinzon Solis Filipe0-141 ≣E20It
416Gokhale J Tratar ...Fish Gennadij (GER)24400-154 ≣E41Ch World (juniors...
856Doelker Kai (GER)1723Gruenter Martin (...21780-126 ≣E41Ch Germany (junio...06 Jun 2010
682Santos Marcus Vin...2334Tsuboi Edson Kenj...23870-167 ≣E41It (cat.3)