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Nimzo-Indian, Sämisch Variation, Main line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 0-0 6. e3 c5 7. Bd3 Nc6

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
305Nguyen Huynh Minh...2456Tran Minh Tung1-028 ≣E41Ch Vietnam (junio...27 Jul 2002
303Niklasson Christe...2375Barkhagen Jonas (...24580-132 ≣E20Ch Sweden (team) ...
42Nikolaevsky Yuri ...2315Zurakhov Vladlen ...24151-046 ≣E20Ch Ukraine
294Norri Joose (FIN)2403Agopov Mikael (FIN)23761-028 ≣E41Ch Finland
421Nunes Allan Hurba...1976Oliveira Silvio E...23570-129 ≣E20Ch Brazil (1/2 fi...02 Nov 2009
209Oei Hway Ik (NED)2235Van Den Doel Erik...23050-140 ≣E41It (open)
162Oertle MirkoRoederer Kai (GER)22180-128 ≣E20It (open)
84Oestreich ReinhardUpmann H1-024 ≣E20Ch OWL
438Olivares Francisc...2283Gongora Liuber (CUB)22880-136 ≣E41Tournament (Elo)07 Nov 2010
339Otero Diasmany (CUB)2414Hernandez Holden ...24831-047 ≣E47Ch Cuba (Gr. B)10 Apr 2005
33Owens BenjaminSiegel Merrick0-135 ≣E46Ch Manhattan Ches...
64Pachman Ludek (GER)2278Porath Yosef (ISR)23401-022 ≣E41Olympiad
119Pajarinen SamiVuori Jorma1-044 ≣E20Ch Finland (corr.)
378Pak Evgeniy (KAZ)2184Prohaszka Peter (...24700-135 ≣E46Olympiad (under 16)11 Aug 2007
245Paschall William ...2365Jagodzinski Andre...22151-034 ≣E47It (a)
43Pasman MarksKlavins Janis1-047 ≣E41Ch Riga
314Pedersen Nicolai ...2466Sokolov Andrei (FRA)25911-032 ≣E46Bundesliga 2002/03
329Pedersen Nicolai ...2466Peek Maurice (NED)23431-043 ≣E46It (open)10 Aug 2004
337Pedersen Nicolai ...2496Hansen Curt (DEN)26070-131 ≣E46Ch Denmark (KO-sy...24 Mar 2005
117Peltonen LeifBaranowski Tadeus...19721-032 ≣E41?
275Petersen Terji (FAI)2142Berg Olaf (FAI)22790-134 ≣E47It (open)
280Picazo Lopez Juan...2055Garcia Carbo Marc...23540-140 ≣E41Ch Spain (open)
367Picazo Lopez Juan...2188Hernandez Holden ...25661-030 ≣E47It (open)05 Apr 2007
132Pieterse Gert (NED)2400Langeweg Kick (NED)23091-030 ≣E46It (open)
65Piket Joop J (NED)2125Flesch Janos0-118 ≣E20It \
393Pirogov Vladislav...1693Sanatullin Rinat ...22030-118 ≣E20Tournament (Elo) \22 Dec 2007
101Pliester Leon (NED)2300Taulbut Shaun M (...23760-138 ≣E41It (open)
44Polugaevsky Lev A...2585Furman Semyen A (...0-122 ≣E41Tournament
269Pons Sastre Santi...2328Kolev Atanas (BUL)25820-135 ≣E20It (open)
100Popovich Sviatosl...2233Abram Gary0-133 ≣E20World Tournament ...
45Popov Vladilen (BUL)2260Filipov F (BUL)1-045 ≣E41Ch Bulgaria
360Porper Eduard (CAN)2462Ganaus Hannes (AUT)23260-135 ≣E20It (open)01 Aug 2006
75Porreca Giorgio (...Dalla Villa Corrado1-027 ≣E20?
284Pugh Larry (USA)2059Nolan Gregory M0-147 ≣E20It \
239Punteri Marco (ITA)2049Sale Srdjan (CRO)24250-141 ≣E41It (open)
193Pyka Andreas (GER)2056Brauer Christian ...21150-143 ≣A40It (open) \
268Pyka Andreas (GER)2065Morsch Andreas17161-033 ≣E41It (open)
129Pyrich George (SCO)2014Morrison Graham (...23390-141 ≣E46Ch Scotland
366Radjabov Teimour ...2742Leko Peter (HUN)27550-131 ≣E20It \29 Mar 2007
279Raineri Pablo (ARG)2164Parker Jonathan (...25390-131 ≣E20It (open)
23Raizman Maurice2200De Greif Boris (COL)22551-032 ≣E41Olympiad
154RastasVinikka0-130 ≣E20Ch Finland (corr.)
144Rastas SeppoEkmark Raimo1-022 ≣E20?
125Rastas SeppoMolarius Reijo (FIN)1-031 ≣E20?
108Rau Juergen (GER)2152Zuchner1-026 ≣A15Ch DDR (corr.)
111Ravikumar Vaidyan...2385Levitt Jonathan (...24201-038 ≣E20It (open) \
89Razzaghi ABehroozi Ev1-023 ≣E41Ch Iran
394Rej Tomek (AUS)2327Lazarus Ben (AUS)21720-142 ≣E20Ch Australia03 Jan 2008
368Rej Tomek (AUS)2283Solomon Stephen J...24651-037 ≣E20It (open)13 Apr 2007
155RemensbergerMilosevic0-124 ≣E47Bundesliga 1989/90
151Remensberger Paul...2065Milosevic Goran (...23490-124 ≣E47It (open)
122Remlinger Larry (...2380Larsen Bent (DEN)25650-142E46It (open)
36Reshevsky Samuel ...2430Hearst Eliot Sanford1-037 ≣A17Memorial Rosenwald
158Reul MBoehle Reinard (GER)21080-135 ≣A40Ch Hessen (qual)
185Richter Michael (...2484Stevanovic Igor (...21800-130 ≣E41Ch Germany (junio...
313Rico Galiano Arse...2266Lalic Bogdan (ENG)25150-133 ≣E20It (cat.4)
309Riedel Holger Dr ...2284Bogner Norbert (GER)20721-030 ≣E20It (open)
352Rink Christian (GER)2140Weigel Robert Dr ...22330-149 ≣E41Bayern Landesliga...19 Feb 2006
383Rodrigo Edson (BRA)1962Gazel Cohen Perei...22500-139 ≣E47Ch Paulista12 Oct 2007
386Rodrigo Edson (BRA)1962Zampronha Wladimi...21430-136 ≣E47Tournament (Elo)03 Nov 2007
327Rodriguez Cordon ...2280Furio Zapata Robe...18261-018 ≣E20It11 Jul 2004
142Rokitta NSonntag Hans-Hube...23850-140 ≣E46It (open) \
66Romani Elio (ITA)2275Greiveldinger E0-138 ≣E20Olympiad
418Rosmuller Anton (...2112Vovk Yuri (UKR)25670-124 ≣E47It (open)03 Aug 2009
235Rost Van Tonninge...2280Weigel Herbert (GER)21181-044 ≣E20Ch Germany (senio...
51Rotstein Efim (GER)2341Lazarev Efim M (UKR)24280-132 ≣E47Ch Ukraine
312Roubalik Vlastimi...2089Ginzburg Mikhail ...23460-123 ≣E20Memorial O.Duras ...
40Rubio Aguado Fern...Letelier Rene (CHI)21510-141 ≣E20Zt
39Rubio Aguado Fern...Cuellar Gacharna ...22800-132 ≣E20It
200Ryskin Alexander ...2515Luther Thomas (GER)25101-044 ≣A40Memorial I.Bolesl...
391Sahelices Casado ...2117Lopez Gonzalez Da...21760-137 ≣A13It (open) (under ...04 Dec 2007
257Salimaki Janne (FIN)2215Haapasalo Jukka-P...22450-135E41Ch Helsinki
302Santana Orlando (...2172Leitao Rafael (BRA)25260-119 ≣E20Cup Itau (open)
160Santos Carlos P (...2404Prakash G B (IND)23320-138 ≣E20Ch World (juniors...
442Santos Marcus Vin...2341Leitao Rafael (BRA)26220-117 ≣E20Memorial Antonio ...15 Jan 2011
343Santos Marcus Vin...2353Lopez Gonzalez Da...22451-041 ≣E41It (cat.3)09 Jul 2005
350Santos Marcus Vin...2353Mekhitarian Kriko...22801-046 ≣E46Ch Brazil20 Dec 2005
317Schaffer Hendrik ...2222Seifert Volker (GER)23291-037 ≣A40Ch Germany (junio...
288Scharping Hans-Ma...2125Schenk Andreas (GER)24780-147 ≣A40It (open) \
5Schmidt Paul F (EST)Bogoljubow Efim D...0-131 ≣E47It
88Scholze JReschke Heinz0-130 ≣E47corr.
109Schreiber Hans (GER)1981Roisin L0-121 ≣E20Europe Tournament...
419Serna Lara Sergio...2234Suba Mihai (ROM)25400-128 ≣E47It (open)03 Sep 2009
341Sharavdorj Dashze...2453Rensch Daniel (USA)23611-027 ≣E41It \12 Jun 2005
407Shengelia Davit (...2547Jaracz Pawel (POL)25131-035 ≣E47Bundesliga 2008/0929 Nov 2008
137Shereshevski Mikh...2475Piesina Gintautas...23901-047 ≣E41Ch URS (1/2 final)
87Shereshevski Mikh...2475Yuferov Sergey N ...24121-047 ≣E46Memorial A.Sokolsky
171Siebert Lutz (GER)2174Tuerk Philipp (GER)21501-049 ≣A40Ch NRW
401Simovic Mladen (CRO)1859Milosavljevic Jov...20820-137 ≣E20It (open)01 Aug 2008
223Slegl MGrecny K0-130 ≣E46Memorial Olexa (o...
435Smokina Karolina ...2170Giulian Rosemary ...19901-041 ≣A40Olympiad (w)30 Sep 2010
196Soman Satchidanan...2320Ravi Thandalam Sh...23850-150 ≣E41Ch India
62Spassky Boris V (...2548Bykov Valery (RUS)23011-040 ≣E20Tournament (team)
149Spycher Bernard2200Klauser Markus (SUI)23710-124 ≣E41Memorial Hans Klee
178Srokowski Jarosla...2410Siklosi Zoltan (HUN)23281-035 ≣E46It
14Stahlberg Gideon ...Broadbent Reginal...1-041 ≣E47It
15Steiner Hermann (...Tramoyeres P1-025E20It
110Steudtmann Christ...2268Tischbierek Raj (...24500-136 ≣E20Ch DDR
351Stoehrer Philip (...1996Komarov Dimitri (...25400-125 ≣E46It (open)
413Swaraj Palit (IND)2140Sharma Dinesh K (...23760-121 ≣E20It (open)11 Jan 2009