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Nimzo-Indian, 4.e3, Main line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nf3 d5 6. Bd3 c5 7. 0-0 Nc6 8. a3 Bxc3+ 9. bxc3 dxc4

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
540Salo Heikki (FIN)2279Sorsa Nuutti (FIN)22311-040 ≣E47Ch Finland (team)...
443Sasata Robert (CAN)2279Ferguson Bobby (USA)22320-134 ≣E21It (open)
478Nor Igor (ISR)2280Seidl Juergen (GER)21701-035 ≣E41Memorial Karl Wag...
27Cuellar Gacharna ...2280Vesterinen J1-043 ≣E41Olympiad
58Barda Yngvar (NOR)2280Keller Dieter Ren...23590-128 ≣E41Olympiad (sf)02 Sep 1956
488Nor Igor (ISR)2280Jagodzinski Andre...22150-141 ≣E47It (cat.2)
739Ramon Solans Albe...2280Cruz Jonathan (PER)23860-122 ≣E40It (cat.2)07 Dec 2011
403Lengyel Ferenc (HUN)2280Kladiva Imre (HUN)20141-026 ≣E41It (open)
63Soos Bela (ROM)2281Ingerslev Aage (DEN)22301-039 ≣E41Olympiad16 Sep 1956
226Kozlovskaya Valen...2281Gaprindashvili No...24250-142 ≣E47Olympiad URS
159Lapienis Donatas ...2282Rusakov Jury (RUS)22470-124 ≣E41Ch Lithuania
741Ben Arzi Ido (ISR)2284Becking Franz-Jos...19560-138E47It (open) \29 Jan 2012
161Bachtiar Arovah (...2285Donner Jan-Hein (...24300-144 ≣E41It \
160Bachtiar Arovah (...2285Damjanovic Mato (...23030-140 ≣E47It \
272Hovde Frank (NOR)2285Henttinen Markku ...22700-136 ≣E46It (open)
391Bjerke Richard (NOR)2285Hultin Johan (SWE)23071-025 ≣A06It (b)
355Foldi Istvan (HUN)2285Schmittdiel Eckha...24550-136 ≣E41Memorial Elekes
485Mancini Mario (FRA)2285Marzolo Cyril (FRA)23701-024 ≣E47Ch France (b)
334Zsinka Laszlo (HUN)2286Cladouras Panagio...23701-041 ≣E47It
432Parulava Temur (GER)2287Ellers Holger (GER)23600-138 ≣E47Ch Germany (junio...
414Parulava Temur (GER)2287Dudek Richard (GER)22450-120 ≣E41Bundesliga (2nd) ...
472Kostin Sergei (RUS)2290Tunik Gennady (RUS)24500-147 ≣E41Cup Russia (open)
477Juhnke Karl (GER)2290Wronn Bernd (GER)21921-048 ≣E47Oberliga Northwes...
461Mancini Mario (FRA)2290Gosset Arnaud (FRA)22201-028 ≣E47It (open)
369Norri Joose (FIN)2291Hall Jesper (SWE)24931-042 ≣E47It (open)
141Lengyel Levente (...2293Somogyi Istvan (HUN)22051-041 ≣E47Ch Hungary
575Van Buskirk Charl...2293Del Pilar Reynald...23061-037 ≣E41It (open)15 Feb 2004
121Ujtelsky Maximili...2295Kramer Haije J (NED)23301-040 ≣A17Olympiad
187Teschner Rudolf (...2295Rossolimo Nichola...24500-140 ≣E47It
548Grycel Kamil (POL)2295Dobrowolski Piotr...23960-136 ≣E47Ch Poland (team)
595Pacheco Daniel (ARG)2297Ferrufino Boris (...22111-041 ≣E21It (cat.2)12 Jun 2005
711Sagar Shah (IND)2298Venkatesh M R (IND)24791-045 ≣E47It (open)19 Jan 2011
763Byklum Bjornar (NOR)2298Vuilleumier Alex ...23261-049 ≣E47Cup European Club17 Oct 2012
670Richardson John R...2298Devereaux Maxim (...23870-150 ≣E47Ch England (team)...22 Mar 2009
348Leverett Bruce W ...2300Wachtel Hovard1-038 ≣E41It (open) \
522Kekki Petri (FIN)2300Sorsa Nuutti (FIN)22771-046 ≣E47Ch Finland
740Skliba Martin (CZE)2301Fusek Lukas19841-045 ≣E47Czech League 2011...08 Jan 2012
270Ravikumar Vaidyan...2305Hovde Frank (NOR)22850-130 ≣E47It (open)
81Yepez Olavo (ECU)2305Blatny Frantisek ...21120-123 ≣E41Ch World (team) (...
396Yepez Olavo (ECU)2305Narciso Dublan Ma...23000-123 ≣E40It (open)
602Dias Paulo (POR)2306Blalock Rex (USA)22181-036 ≣E10It (open)03 Nov 2005
612Guseva Marina (RUS)2306Kovanova Baira (RUS)23101-035 ≣E47Ch Russia (junior...10 Mar 2006
538Netusil Miroslav ...2306Prandstetter Edua...23650-135 ≣E47Czech League (V) ...
99Sokolov Vladimir ...2310Lokvenc Josef (AUT)1-032 ≣E47It
98Sokolov Vladimir ...2310Ivkovic Dusan (SRB)22341-042 ≣A46Ch Yugoslavia
678Murillo Alexis (CRC)2310Iturrizaga Eduard...25550-146 ≣E40Zt24 Jun 2009
504Aboud Firas (SYR)2310Aboudi M (JOR)21661-042 ≣E47Ch Asian Cities (...
686Byklum Bjornar (NOR)2310Grandelius Nils (...25150-142 ≣E47Ch Norway (team) ...06 Nov 2009
34Burger Karl (USA)2310Evans Larry M (USA)24700-122 ≣E47Ch USA
638Batsiashvili Nino...2313Babujian Levon (ARM)24280-133 ≣E21It (open)17 Sep 2007
409Rodriguez Lopez R...2313Martin Garcia Jua...21420-137 ≣A17It (open)
405Lisjak Zlatko (CRO)2314Jokovic Dusan (SLO)20821-033 ≣E47Tournament (team)
306Ostenstad Berge (...2315O'Cinneide Mel (IRL)22341-028 ≣E46Ch World (juniors...03 Aug 1984
487Michenka Jozef (CZE)2315Klima Lukas (CZE)22851-038 ≣E47It
738Netusil Miroslav ...2318Sura Jaroslav (CZE)21871-033 ≣E47Ch Czech Republic...27 Nov 2011
706Bezemer Arno (NED)2318L'Ami Erwin (NED)26240-141 ≣E47It (open)22 Oct 2010
198Bjerre Troels (DEN)2320Hamann Svend (DEN)24900-130 ≣E40Tournament
524Michenka Jozef (CZE)2323Holeksa Zdenek (CZE)21061-031 ≣E47It (open)
537Niklasch Oliver (...2324Kveinys Aloyzas (...25410-132 ≣E47It (open)
236Sydor Andrzej (POL)2325Pinkas Karol (POL)23201-045 ≣E41It (b)
617Ganaus Hannes (AUT)2326Papp Gabor (HUN)24660-132 ≣E47It (open)14 Jul 2006
576Verzhansky Alexan...2327Flyagin Dmitriy (...1-035 ≣E41Ch Russia (junior...
684Quiroga Facundo (...2329Van Riemsdijk Her...23800-138 ≣A06Ch Paulista (final)03 Oct 2009
464Michenka Jozef (CZE)2330Machycek Lubomir ...22550-140 ≣E47Ch MSS
589Glavas Dragan (CRO)2333Krkljes Slaven (CRO)21671-039 ≣E41Ch Croatia (team)...20 Mar 2005
599Brener Ilja (GER)2334Warakomski Tomasz...23960-124 ≣E40Ch Europe (junior...
594Brener Ilja (GER)2334Lettieri Giuseppe...22650-150 ≣E40Cup Mitropa25 May 2005
162Ojanen Kaarle S (...2335Cuartas Carlos (COL)22561-026 ≣E41Olympiad
309Goehring Karl-Hei...2335Budde Vladimir (GER)22911-043 ≣A40Bundesliga 1984/85
145Morgulov Alexsand...2335Sardarov Edward (...22060-131 ≣E41Ch Azerbaijan
283Goehring Karl-Hei...2335Unzicker Wolfgang...25100-139 ≣E47Bundesliga 1982/83
92Ojanen Kaarle S (...2335Euwe Max (NED)0-131 ≣E41Olympiad
671Macias Murillo Br...2335Fier Alexander Hi...26041-033 ≣E47Ch South America ...11 Apr 2009
407Livshits Ron (CAN)2336McGarrett Ian (CAN)21721-025 ≣E47It
682Rees Ioan (WLS)2339Pap Gyula (HUN)25030-146 ≣E10It (cat.8)03 Aug 2009
341Dive Russell John...2339Martin Benjamin (...23751-050 ≣E41Ch New Zealand
120Thorbergsson Frey...2340Humerez C0-132 ≣E41Olympiad
64Thorbergsson Frey...2340Catozzi Henry (FRA)1-042 ≣E47Olympiad20 Sep 1956
457Akhsharumova Anna...2340Einarsson Bergste...21750-136 ≣E47It (open)
48Vladimirov Boris ...2340Lisitsyn Georgy (...0-133 ≣E41Ch URS (1/2 final)
190Poulsson Eivind (...2340Hernandez Roman (...23751-027 ≣E47Ch World (team) (...01 Aug 1969
610Muir Andrew J (SCO)2341Bellia Fabrizio (...23950-136 ≣E47It (cat.7)17 Feb 2006
696Lahiri Atanu (IND)2341Savic Miodrag R (...25030-143 ≣E41It (open)12 Jul 2010
440Giddins Stephen (...2345Kaspi Alexander (...24700-129 ≣E47Cup European Club
124Varnusz Egon (HUN)2345Flesch Janos0-142 ≣E46Ch Hungary
470Burlov Vassili (RUS)2345Nikolenko Oleg (RUS)24900-143 ≣E41Ch Moscow
337Michenka Jozef (CZE)2346Kazek Krzysztof (...20001-026 ≣E41It
383Michenka Jozef (CZE)2346Prandstetter Edua...24100-133 ≣E47Ch Czechoslovakia...
618Fedorovsky Michae...2346Czakon Jakub (POL)24860-139 ≣E47It (open)29 Jul 2006
509Van Beers Eddy (BEL)2346Kolev Atanas (BUL)25820-143 ≣E47Olympiad
169Schweber Samuel (...2348Mecking Henrique ...25781-039 ≣E41Tournament
117Schweber Samuel (...2348Reinhardt Enrique...1-046 ≣E47Ch Argentina (pla...
40Schweber Samuel (...2348Spassky Boris V (...25480-135 ≣E41Ch World (juniors...
705Petran Pal (HUN)2348Getz Nicolai (NOR)22760-133 ≣E47It (cat.1)09 Oct 2010
186Bronstein Luis (ARG)2349Schweber Samuel (...23480-138 ≣E41It
424Weindl Alfred (GER)2350Joachim Sven (GER)23801-043 ≣D31It (open)
54Enevoldsen Jens (...2350Larsen Bent (DEN)24150-129 ≣E41It
183Shashin Alexsande...2350Osnos Viatcheslav...23841-041 ≣E47Ch Leningrad
230Lombard Andre (SUI)2350Unzicker Wolfgang...25351-038 ≣E47Ch Switzerland
122Borisenko Georgy ...2354Kondratiev1-042 ≣E21It