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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
745Monticelli Romain1820De Gueldre Philip...21270-127 ≣E00Tournament (open)30 Mar 2012
18Panno Oscar (ARG)2438Ivkov Borislav (SRB)24161-024 ≣E10Ch World (juniors)
484Garcia Palermo Ca...2470Van Riemsdijk Her...24050-148 ≣E10It (cat.6)
732Rasmussen Henning...2172Byrne Ray (IRL)20540-143 ≣E10Cup European Club26 Sep 2011
458Kock Hans-Uwe (LIE)2235Kiesslich W1-029E10It (open)
652Fistek Dariusz (POL)2265Sopur Lech (POL)24250-135 ≣E10It (open)28 Apr 2008
602Dias Paulo (POR)2306Blalock Rex (USA)22181-036 ≣E10It (open)03 Nov 2005
201Littleton Michael...2275Sharif Mehrshad (...23301-012 ≣E10Olympiad
88Angos AlexanderSafvat Y0-121 ≣E10Olympiad
552Shipov Sergei (RUS)2604Bagirov Rufat (AZE)24940-136 ≣E10It (open) \
606Van der Werf RVermeulen F0-129 ≣E10It (open)
682Rees Ioan (WLS)2339Pap Gyula (HUN)25030-146 ≣E10It (cat.8)03 Aug 2009
680Mareco Sandro (ARG)2503Corrales Fidel (CUB)26020-142E10Ch Continental Am...30 Jul 2009
442Karp Serge (LUX)2095Pytel Krzysztof (...24250-122 ≣E10It (open)
713Schnider Gert (AUT)2358Schwenk Andreas (...21301-035 ≣E11It (open)17 Feb 2011
758Zwirs Nico (NED)2173Leenhouts Koen (NED)23840-134 ≣E11It (open)07 Aug 2012
520Labat Antoine (FRA)2024Dourerassou Jonat...21030-142 ≣E11Ch France (team) ...
447Van Den Bergh Jan...2068Bjarnason Saevar ...22850-135 ≣E11It (open)
572Melkumjanc NicolajDeuber Roman (SUI)20960-121 ≣E20Ch Switzerland
499Kodentsov Grisja ...2275Werle Jan (NED)22161-040 ≣E20Ch Netherlands (j...
273Lukacs Peter (HUN)2405Pinkas Karol (POL)23201-041 ≣E21It (a)
595Pacheco Daniel (ARG)2297Ferrufino Boris (...22111-041 ≣E21It (cat.2)12 Jun 2005
647Chabanon Jean-Luc...2454Garro Pierre (FRA)21411-026 ≣E21Ch France (team) ...10 Apr 2008
638Batsiashvili Nino...2313Babujian Levon (ARM)24280-133 ≣E21It (open)17 Sep 2007
49Kozma Julius (CSR)2380Vesely Jaromir (CZE)19791-042 ≣E21Ch Czechoslovakia
495Kovacs Istvan (HUN)2236Somogyi Istvan (HUN)22381-050 ≣E21Ch Hungary (team)...
718Tyn Ondrej1902Pavelek Karel (CZE)21550-134E21Czech League 2010...03 Apr 2011
102Spassky Boris V (...2548Ghitescu Theodor ...23841-034 ≣E21Ch World (students)
656Bagapsh Astamur (...Sanakoev Grigory ...22590-120 ≣E21It (open) (a)03 Aug 2008
232Palmo Pentti (FIN)2065Hietanen Pentti1-033 ≣E21?
759Arishin Sergei (KGZ)2183Nukin Ashat (KAZ)23470-125 ≣E21Memorial Izmailov...12 Aug 2012
631Hoang Thi Bao Tra...2265Andriasian Siranu...22341-044 ≣E21Ch World (team) (w)21 May 2007
443Sasata Robert (CAN)2279Ferguson Bobby (USA)22320-134 ≣E21It (open)
122Borisenko Georgy ...2354Kondratiev1-042 ≣E21It
118Lazarev Efim M (UKR)2428Kurass Iskir (UKR)23401-048 ≣E21Ch Ukraine (1/2 f...
257Pinter Jozsef (HUN)2445Rigo Janos (HUN)23851-040 ≣E21Ch Hungary
227Taimanov Mark E (...2580Zaichik Gennadi (...24571-039 ≣E21Olympiad URS
228Sorsak Jozef Sr (...2125Kolesar Milan (SVK)21750-130 ≣E21It (b)
173Lukic ArsenijeDamjanovic Mato (...23030-134 ≣E21It
591Drozdowski Kacper...1812Paprocki Jaroslaw...22270-148 ≣E21Tournament (regio...04 Apr 2005
624Pushkov Nikolai (...2513Kornyukov Alexey ...24161-037 ≣E21Memorial G.I.Ivan...03 Jan 2007
66Gligoric Svetozar...2447Evans Larry M (USA)24701-039 ≣E21It
455Bjornsson Bjorn F...2230Addison James1-029 ≣E21It \
623D'apa Matteo (ITA)2026Cardani Roberto (...19031-050 ≣E21Memorial Crespi (...08 Dec 2006
225Gorniak Juri (MDA)Siniavsky Alexander1-021 ≣E21Olympiad URS
379Manchego CarlosDebarnot Roberto ...23550-143 ≣E21It (open) \
678Murillo Alexis (CRC)2310Iturrizaga Eduard...25550-146 ≣E40Zt24 Jun 2009
695Kozenkov Valery (...2132Rutman Aleksandr ...21441-027 ≣E40It (open) \24 Jun 2010
594Brener Ilja (GER)2334Lettieri Giuseppe...22650-150 ≣E40Cup Mitropa25 May 2005
739Ramon Solans Albe...2280Cruz Jonathan (PER)23860-122 ≣E40It (cat.2)07 Dec 2011
396Yepez Olavo (ECU)2305Narciso Dublan Ma...23000-123 ≣E40It (open)
742Baciu Stefan (ROM)2222Tudose Cristian (...18541-039 ≣E40Ch Romania17 Feb 2012
692Ruschukov BojanNikolova Adriana ...22950-137 ≣E40It \22 May 2010
657Nikolaev Alexande...1986Abylkassymova Rau...18341-039E40Tournament (open) \05 Aug 2008
648Stegariu Vlad-Ionut1937Frusescu Dorian-C...1-041 ≣E40Ch Romania (juniors)12 Apr 2008
694Potkin Vladimir (...2630Corrales Fidel (CUB)25991-035 ≣E40Memorial J.Capabl...16 Jun 2010
639Enchev Evgeni (BUL)1988Nikolova Adriana ...22250-133 ≣E40Ch Bulgaria (stud...10 Nov 2007
616Jakab Attila (HUN)2402Ilincic Zlatko (SRB)24510-130 ≣E40It (cat.7)07 Jun 2006
566Bromberger Stefan...2440Loeffler Stefan (...24320-130 ≣E40Bundesliga 2002/03
561Giuriato Sergio (...2020Wronn Bernd (GER)22510-120 ≣E40It (open)
517Graf Alexander (GER)2610Zeller Frank (GER)24530-139 ≣E40It (open)
68Golz Werner (GER)2410Rellstab Ludwig S...22650-124 ≣E40It
372Cacho Reigadas Se...2524Corral Blanco Jua...24361-030 ≣E40It (active)
380Popov Sinisa S (SRB)2443Stanimirovic Alek...22401-031 ≣E40Ch Yugoslavia (team)
533Zolotov Bogdan (RUS)2207Chuiko Alexander ...24130-141 ≣E40Ch Tula Region (o...
261Cherek GunterSchimron H0-129 ≣E40corr.
62Tserendagva D (MGL)Reissmann Paul (PRO)1-030 ≣E40Olympiad12 Sep 1956
198Bjerre Troels (DEN)2320Hamann Svend (DEN)24900-130 ≣E40Tournament
599Brener Ilja (GER)2334Warakomski Tomasz...23960-124 ≣E40Ch Europe (junior...
53Kozma Julius (CSR)2380Lax Hendrich1-029 ≣E41Ch Czechoslovakia...
50Palmason Gudmundu...2270Einarsson Jon1-029 ≣E41It
81Yepez Olavo (ECU)2305Blatny Frantisek ...21120-123 ≣E41Ch World (team) (...
9Germek MilanO'kelly De Galway...24600-134 ≣E41It
67Gligoric Svetozar...2447Stenborg Ake (SWE)22800-148 ≣E41Zt
690Kashlinskaya Alin...2358Girya Olga (RUS)24141-050 ≣E41Ch Russia (junior...18 Apr 2010
489Potapov Alexander...2241Filippov Valerij ...25951-045 ≣E41Cup Russia
472Kostin Sergei (RUS)2290Tunik Gennady (RUS)24500-147 ≣E41Cup Russia (open)
153Emma Jaime (ARG)2395Polo Gomez Vicent...22120-144 ≣E41Ch Buenos Aires (...
41Somers StafJorgensen Vagn Rauhe0-139 ≣E41Ch World (juniors...
82Dzieciolowski AdamWiniwarter Felix ...21760-133 ≣E41Memorial Przepiorka
40Schweber Samuel (...2348Spassky Boris V (...25480-135 ≣E41Ch World (juniors...
33Uusi Gunnar (EST)2410Levenfish Grigori...1-028 ≣E41Ch Moscow
39Jorgensen Vagn RauheSpassky Boris V (...25480-133 ≣E41Ch World (juniors...
43Idigoras GregorioNajdorf Miguel (POL)24450-139 ≣E41Ch Argentina
192Hofmann GeorgeSchmid Hans-Peter...18990-142 ≣E41corr.
23Geller Efim P (RUS)2455Kotov Alexander A...25000-142 ≣E41Tournament (candi...
26Bronstein David I...2432Horberg Bengt-Eric1-033 ≣E41Olympiad
15Kluger Gyula (HUN)2250Florian Tibor (HUN)1-038 ≣E41Ch Hungary
186Bronstein Luis (ARG)2349Schweber Samuel (...23480-138 ≣E41It
29Rabar Braslav (YUG)Janosevic Dragolj...23300-147 ≣E41It
45Furman Semen (RUS)2550Antoshin Vladimir...22500-146 ≣E41Ch URS
84Panno Oscar (ARG)2438Garcia Vera Romeo1-032 ≣E41Ch Argentina
107Geller Efim P (RUS)2455Padevsky Nikola (...23551-044 ≣E41It
3Wood GabrielMitchell Graham1-028 ≣E41Ch World (corr.)
57Bisguier Arthur B...2237Turner Abe22001-046 ≣E41Memorial Rosenwald
172Kolarov Atanas S ...2415Sapunov Lilko1-028 ≣E41Ch Bulgaria01 Mar 1966
13Kotov Alexander A...2500Matanovic Aleksan...24901-041 ≣E41Izt
12Moisieev Oleg L (...2385Byvshev Vasily Mi...1-034 ≣E41Ch URS
111Letelier Rene (CHI)2151Redolfi1-049 ≣E41?
5Martin Pedro (ARG)2021Souza Mendes Joao1-034 ≣E41Zt