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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
331Donaldson John W ...2390Dolgitser Konstan...22611-041 ≣E47It (open)
2Gligoric Svetozar...2447Rossolimo Nichola...24501-041 ≣E41It
25Taimanov Mark E (...2386Euwe Max (NED)0-141 ≣E41Tournament (candi...
634Kashlinskaya Alin...2263Ogleznev Alexandr...22621-041 ≣E47It \22 Jul 2007
141Lengyel Levente (...2293Somogyi Istvan (HUN)22051-041 ≣E47Ch Hungary
250Lerner Konstantin...2515Zaichik Gennadi (...24571-041 ≣E41Memorial V.Karsel...
183Shashin Alexsande...2350Osnos Viatcheslav...23841-041 ≣E47Ch Leningrad
73Casas Fernando (ARG)2245Lombardy William ...24351-041 ≣E47It
641Chuprikov Dmitry ...2404Belikov Vladimir ...25780-141 ≣E47Ch City09 Dec 2007
757Meins Gerlef (GER)2475Poetsch Hagen (GER)24361-041 ≣E47It \14 Jul 2012
562Pelletier Yannick...2589Lutz Christopher ...25961-041 ≣E47It (cat.16)
459Valden Petros (GRE)2243Tzoumbas Anastasi...23800-141 ≣E41Ch Greece (team)
430Mertanen Janne (FIN)2369Nokso-Koivisto An...22350-141 ≣E47Ch Finland (team)...
697Kapnisis Spyridon...2511Pavlidou Ekaterin...21911-041 ≣E47Cup Artemis (open)14 Jul 2010
633Tadic Branko (SRB)2484Ilincic Zlatko (SRB)25450-141 ≣E47Ch Bosnia & Herze...10 Jun 2007
488Nor Igor (ISR)2280Jagodzinski Andre...22150-141 ≣E47It (cat.2)
313Portisch Ferenc (...2405Rigo Janos (HUN)23190-141 ≣E47It (open)
491Gual Pascual Anto...2433Kolev Atanas (BUL)25580-141 ≣E47It (open)
635Kozakov Mikhail (...2449Rybak Tomasz (POL)22821-041 ≣E47Tournament (open)28 Jul 2007
595Pacheco Daniel (ARG)2297Ferrufino Boris (...22111-041 ≣E21It (cat.2)12 Jun 2005
49Kozma Julius (CSR)2380Vesely Jaromir (CZE)19791-042 ≣E21Ch Czechoslovakia
105O'kelly De Galway...2460Secchi Ernesto1-042 ≣E41Ch World (corr.)
97Gligoric Svetozar...2447Pachman Ludek (GER)22781-042 ≣E47Izt
216Knaak Rainer (GER)2515Garcia Gonzales G...24501-042 ≣E41Memorial J.Capabl...
286Knaak Rainer (GER)2505Tischbierek Raj (...24541-042 ≣E41It
244Brinck-Claussen B...2263Fries-Nielsen Jen...23871-042 ≣E47Ch Denmark
747Tovmasian Vardges...2420Soltanici Ruslan ...23970-142 ≣E47Memorial V.Naboko...25 Apr 2012
520Labat Antoine (FRA)2024Dourerassou Jonat...21030-142 ≣E11Ch France (team) ...
725Peralta Fernando ...2602Cruz Jonathan (PER)24121-042 ≣E47It (open)03 Jul 2011
89Gligoric Svetozar...2447Anderson Frank R ...1-042 ≣E46Olympiad
163Furman Semen (RUS)2550Padevsky Nikola (...23551-042 ≣E41Ch Czechoslovakia...
122Borisenko Georgy ...2354Kondratiev1-042 ≣E21It
687Grotnes Nils (NOR)2232Johannessen Leif ...25530-142 ≣E47Ch Norway (team) ...06 Nov 2009
226Kozlovskaya Valen...2281Gaprindashvili No...24250-142 ≣E47Olympiad URS
185Visier Segovia Fe...2233Medina-Garcia Ant...22531-042 ≣E41?
124Varnusz Egon (HUN)2345Flesch Janos0-142 ≣E46Ch Hungary
369Norri Joose (FIN)2291Hall Jesper (SWE)24931-042 ≣E47It (open)
471Khasin Abram (RUS)2420Leonidov Vitaly (...23650-142 ≣E41It (seniors)
134Luckis Marcos2270Caro1-042 ≣E47Ch Pan-American
262Mueller Georg (GER)2054Zimmermann Martin...22381-042 ≣E47corr.
138Omari FatosSafvat Younnus0-142 ≣E41Olympiad
252Boudy Julio (CUB)2188Campos Lopez Mari...23551-042 ≣E41It
504Aboud Firas (SYR)2310Aboudi M (JOR)21661-042 ≣E47Ch Asian Cities (...
680Mareco Sandro (ARG)2503Corrales Fidel (CUB)26020-142E10Ch Continental Am...30 Jul 2009
686Byklum Bjornar (NOR)2310Grandelius Nils (...25150-142 ≣E47Ch Norway (team) ...06 Nov 2009
23Geller Efim P (RUS)2455Kotov Alexander A...25000-142 ≣E41Tournament (candi...
64Thorbergsson Frey...2340Catozzi Henry (FRA)1-042 ≣E47Olympiad20 Sep 1956
95Evans Larry M (USA)2470Sherwin James T (...22460-142 ≣E41Ch USA
192Hofmann GeorgeSchmid Hans-Peter...18990-142 ≣E41corr.
415Erwes Theo (GER)2104Pioch Thomas (GER)21651-043 ≣E47Hessenliga 1993/94
732Rasmussen Henning...2172Byrne Ray (IRL)20540-143 ≣E10Cup European Club26 Sep 2011
93Pachman Ludek (GER)2278Sterner Olaf1-043 ≣E47Olympiad
323CartensLaarhoven Thijs (...22110-143 ≣E47corr.
343Veenhuijzen RobertVan Buuren J1-043 ≣E46corr.
379Manchego CarlosDebarnot Roberto ...23550-143 ≣E21It (open) \
16Idigoras GregorioMarini Luis0-143 ≣E41Ch Argentina
27Cuellar Gacharna ...2280Vesterinen J1-043 ≣E41Olympiad
438Lyrberg Patrik (SWE)2400Koch Thomas (GER)20540-143 ≣E41It (open)
467Karayannis Athana...2245Nikolaidis Ioanni...25200-143 ≣E41It (open)
470Burlov Vassili (RUS)2345Nikolenko Oleg (RUS)24900-143 ≣E41Ch Moscow
212Reshevsky Samuel ...2560Tan Lian-Ann (SIN)23701-043 ≣E47Izt
509Van Beers Eddy (BEL)2346Kolev Atanas (BUL)25820-143 ≣E47Olympiad
523Hasidovski Arnold...2202Marcotulli Giancarlo1-043 ≣E47Tournament (IECG)
553Prasad Devaki V (...2400Mishra Neeraj-Kum...23411-043 ≣E47Ch India
393Murdzia Piotr (POL)2472Aleksandrov Aleks...25050-143 ≣E47Ch Europe (juniors)
696Lahiri Atanu (IND)2341Savic Miodrag R (...25030-143 ≣E41It (open)12 Jul 2010
710Nieto De La Cruz ...2154Sanchez Gonzalez ...22861-043 ≣E47Liga Madrilena 20...09 Jan 2011
679Mouritsen Jan (DEN)1758Skovgaard Tom (DEN)19830-143 ≣E47It (open) \22 Jul 2009
723Di Berardino Dieg...2483Aranha Filho Alva...23151-043 ≣E47Zt26 Jun 2011
587Iljushin Alexei (...2546Wang Hao (CHN)25190-144 ≣E47It (open) \20 Feb 2005
631Hoang Thi Bao Tra...2265Andriasian Siranu...22341-044 ≣E21Ch World (team) (w)21 May 2007
382Carlsson GoranHagstrom Allan1-044 ≣E46Ch Sweden (corr.)
150Portisch Lajos (HUN)2523Porath Yosef (ISR)23401-044 ≣E41Olympiad
256Chandler Murray G...2380Speelman Jonathan...24700-144 ≣E47It
605Rosin Federico (ITA)2143Bevilacqua Mauriz...21721-044 ≣E41It (open)20 Nov 2005
107Geller Efim P (RUS)2455Padevsky Nikola (...23551-044 ≣E41It
241Kuuskmaa EndelSarosi Zoltan (HUN)22970-144 ≣E47Olympiad (corr.)
287Gomez AmalioCorral Blanco Jua...24360-144 ≣E47Ch Asturias (team)
176Diez Del Corral J...2415O'kelly De Galway...24600-144 ≣E41It
359Ruuskanen TimoViitala Aki0-144 ≣E47?
161Bachtiar Arovah (...2285Donner Jan-Hein (...24300-144 ≣E41It \
267Endzelins Lucius ...Bouwmeester Hans ...23430-144 ≣E47Memorial Perfors ...
597Claassen Chris (USA)2071Harper Warren (USA)23140-144 ≣E47Memorial Jerry Spann18 Jun 2005
153Emma Jaime (ARG)2395Polo Gomez Vicent...22120-144 ≣E41Ch Buenos Aires (...
749Korobov Anton (UKR)2679Swiercz Dariusz (...25651-045 ≣E47Match \29 May 2012
539Niemela Antti (FIN)2256Koskela Niina (FIN)23101-045 ≣E47Ch Finland (team)...
740Skliba Martin (CZE)2301Fusek Lukas19841-045 ≣E47Czech League 2011...08 Jan 2012
632Iotov Valentin (BUL)2509Kuzubov Yuriy (UKR)25821-045 ≣E41It \07 Jun 2007
437Ruzzier Dario (ITA)1981Ceresoli Luigi (ITA)22020-145 ≣E47It (open)
44Idigoras GregorioSanguinetti J0-145 ≣E41Ch Argentina
274Hawelko Marek (POL)2380Radziejewski Dari...23001-045 ≣E47It
582Braun Arik (GER)2480Iotov Valentin (BUL)24140-145 ≣E47Ch World (juniors...07 Nov 2004
22Averbakh Yuri L (...2445Euwe Max (NED)1-045 ≣E41Tournament (candi...
721Kostov Galin (BUL)2197Pantev Veselin (BUL)23730-145 ≣E47Ch Bulgaria (team...05 Jun 2011
536Johannessen Leif ...2527Moussa Alaa-Eddin...22121-045 ≣E47Olympiad
490Sturua Zurab (GEO)2602Tiviakov Sergei (...26111-045 ≣E47Cup European Club...
505Computer \Computer \1-045 ≣E47It (computers)
489Potapov Alexander...2241Filippov Valerij ...25951-045 ≣E41Cup Russia
711Sagar Shah (IND)2298Venkatesh M R (IND)24791-045 ≣E47It (open)19 Jan 2011
236Sydor Andrzej (POL)2325Pinkas Karol (POL)23201-045 ≣E41It (b)