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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
507Rozumbersky ASeiner F1-032 ≣E47It (open)
517Graf Alexander (GER)2610Zeller Frank (GER)24530-139 ≣E40It (open)
529Santa Luis A (PUR)2161Campora Daniel H ...25360-121 ≣E47It (open)
530Jussupow Artur (GER)2633Solomunovic Igor ...24211-037 ≣E47It (open)
537Niklasch Oliver (...2324Kveinys Aloyzas (...25410-132 ≣E47It (open)
544Westermayer Johan...1802Baumegger Siegfri...23500-132 ≣E47It (open)
550Gutierrez Lopez C...2172Lorenzini Martin ...23751-041 ≣E47It (open)
556Jasny Stanislav (...1858Machycek Lubomir ...22711-034 ≣E47It (open)
560Milanovic Danilo ...2429Vasovski Nikola (...23251-031 ≣E47It (open)
561Giuriato Sergio (...2020Wronn Bernd (GER)22510-120 ≣E40It (open)
575Van Buskirk Charl...2293Del Pilar Reynald...23061-037 ≣E41It (open)15 Feb 2004
606Van der Werf RVermeulen F0-129 ≣E10It (open)
607Perepelitsky Edwa...2123De Guzman Ricardo...23830-133 ≣E47It (open)19 Dec 2005
601Peralta Fernando ...2538Papp Gabor (HUN)24740-125 ≣E47It (open)24 Oct 2005
602Dias Paulo (POR)2306Blalock Rex (USA)22181-036 ≣E10It (open)03 Nov 2005
604Galvan Jesus (PER)2226Sanchez Aller Fer...22740-123 ≣E47It (open)15 Nov 2005
605Rosin Federico (ITA)2143Bevilacqua Mauriz...21721-044 ≣E41It (open)20 Nov 2005
617Ganaus Hannes (AUT)2326Papp Gabor (HUN)24660-132 ≣E47It (open)14 Jul 2006
618Fedorovsky Michae...2346Czakon Jakub (POL)24860-139 ≣E47It (open)29 Jul 2006
621Pogorelov Ruslan ...2462Hernandez Holden ...25240-139 ≣E47It (open)11 Oct 2006
627Fernandez Gonzale...2044Hernandez Holden ...25660-146 ≣E47It (open)06 Apr 2007
629Kozhuharov Spas (...2463Daurelle Herve (FRA)22631-030 ≣E41It (open)17 Apr 2007
636Koelbl Wolfgang (...1912Schulte Torsten (...22310-130 ≣E47It (open)02 Aug 2007
638Batsiashvili Nino...2313Babujian Levon (ARM)24280-133 ≣E21It (open)17 Sep 2007
652Fistek Dariusz (POL)2265Sopur Lech (POL)24250-135 ≣E10It (open)28 Apr 2008
655Perez Inclan Jorg...1626Lorinczi Retek Pe...16861-035 ≣E41It (open)
658Kovalenko Igor (UKR)2453Kurukin Dmitry (RUS)21861-036 ≣E47It (open)12 Aug 2008
659Kuchynka Lubos (CZE)2050Smith David J (IRL)18281-038 ≣E47It (open)24 Aug 2008
664Marinone Lucio (ITA)2008Provera Emanuele ...21380-131 ≣E41It (open)28 Dec 2008
677Nikolov Sasho (BUL)2416Videnova Iva (BUL)21970-148 ≣E47It (open)23 Jun 2009
720Maroszyk Wieslaw ...1938Jaworski Miroslaw...23200-128 ≣E47It (open)22 May 2011
685Purdon Colin (ENG)2102Downey Keith (WLS)19310-140 ≣E47It (open)20 Oct 2009
696Lahiri Atanu (IND)2341Savic Miodrag R (...25030-143 ≣E41It (open)12 Jul 2010
701Del Rio Angelis S...2515Sanchez Gonzalez ...22881-046 ≣E47It (open)11 Sep 2010
706Bezemer Arno (NED)2318L'Ami Erwin (NED)26240-141 ≣E47It (open)22 Oct 2010
711Sagar Shah (IND)2298Venkatesh M R (IND)24791-045 ≣E47It (open)19 Jan 2011
713Schnider Gert (AUT)2358Schwenk Andreas (...21301-035 ≣E11It (open)17 Feb 2011
725Peralta Fernando ...2602Cruz Jonathan (PER)24121-042 ≣E47It (open)03 Jul 2011
727Gomez Ledo Robert...2452Gensana Berzunces...19971-029 ≣E41It (open)18 Jul 2011
729Mitchell Martin (...2226Jakovljevic Vlado...23860-122 ≣E47It (open)16 Aug 2011
731Kovalenko Igor (UKR)2567Voronov Yuri (UKR)22811-025 ≣E47It (open)04 Sep 2011
733Urkedal Frode (NOR)2447Tari Aryan (NOR)22241-029 ≣E47It (open)02 Oct 2011
735Lund Stale (NOR)1848Swiercz Dariusz (...25850-119E47It (open)03 Nov 2011
737Lund Esben (DEN)2398De Verdier Michae...23861-027 ≣E47It (open)26 Nov 2011
751Kharitonov Alexan...2547Biriukov Nikolai ...24201-032 ≣E47It (open)18 Jun 2012
755De Roode Peter (NED)2242L'Ami Erwin (NED)26150-136 ≣E47It (open)07 Jul 2012
756Maiorov Nikita (BLR)2574Darmarakis Mihail...22140-140 ≣E47It (open)08 Jul 2012
760Jacso Adam (HUN)2224Kozma Gabor19591-040 ≣E41It (open)19 Aug 2012
630Hesselbarth Karlh...1878Bauer Norbert (GER)21180-133 ≣E47It (open) \16 May 2007
552Shipov Sergei (RUS)2604Bagirov Rufat (AZE)24940-136 ≣E10It (open) \
348Leverett Bruce W ...2300Wachtel Hovard1-038 ≣E41It (open) \
346Bokor Istvan (HUN)2226Horvath Csaba (HUN)24450-149 ≣E47It (open) \
492Gislason IngolfurSteindorsson Sigu...20520-135 ≣E47It (open) \
379Manchego CarlosDebarnot Roberto ...23550-143 ≣E21It (open) \
573Biswas KarlCarlucci Paul A0-150 ≣E41It (open) \23 Oct 2003
587Iljushin Alexei (...2546Wang Hao (CHN)25190-144 ≣E47It (open) \20 Feb 2005
586Belov Vladimir (RUS)2620Zhao Jun (CHN)25001-029 ≣E47It (open) \19 Feb 2005
585Lugovoi Aleksei (...2547Naiditsch Arkadij...26411-034 ≣E47It (open) \16 Feb 2005
679Mouritsen Jan (DEN)1758Skovgaard Tom (DEN)19830-143 ≣E47It (open) \22 Jul 2009
695Kozenkov Valery (...2132Rutman Aleksandr ...21441-027 ≣E40It (open) \24 Jun 2010
570Kaidanov Gregory ...2611Lerner Konstantin...25041-039 ≣E47It (open) \
741Ben Arzi Ido (ISR)2284Becking Franz-Jos...19560-138E47It (open) \29 Jan 2012
656Bagapsh Astamur (...Sanakoev Grigory ...22590-120 ≣E21It (open) (a)03 Aug 2008
712Verko Tatiana (KAZ)2104Kovanova Baira (RUS)23691-026 ≣E47It (open) (w)
471Khasin Abram (RUS)2420Leonidov Vitaly (...23650-142 ≣E41It (seniors)
212Reshevsky Samuel ...2560Tan Lian-Ann (SIN)23701-043 ≣E47Izt
144Reshevsky Samuel ...2430Porath Yosef (ISR)23401-034 ≣E41Izt
177Barczay Laszlo (HUN)2381Korchnoi Viktor (...25560-127 ≣E47Izt
13Kotov Alexander A...2500Matanovic Aleksan...24901-041 ≣E41Izt
97Gligoric Svetozar...2447Pachman Ludek (GER)22781-042 ≣E47Izt
178Portisch Lajos (HUN)2523Sarapu Ortvin (NZL)22551-036 ≣E47Izt
710Nieto De La Cruz ...2154Sanchez Gonzalez ...22861-043 ≣E47Liga Madrilena 20...09 Jan 2011
87Donner Jan-Hein (...2430Larsen Bent (DEN)24150-133 ≣E41Match
17Najdorf Miguel (POL)2445Reshevsky Samuel ...24300-135 ≣E41Match
199Baart JoanWeyerstrass Ronal...0-148E41Match
37Milic Borislav (YUG)Matanovic Aleksan...24900-140 ≣E41Match
324Knaak Rainer (GER)2505Georgiev Kiril (MKD)25351-038 ≣E47Match \
83Kluger Gyula (HUN)2250Ivkov Borislav (SRB)24160-130 ≣E47Match \
104Donner Jan-Hein (...2430Clarke Peter H (ENG)23001-032 ≣E41Match \
749Korobov Anton (UKR)2679Swiercz Dariusz (...25651-045 ≣E47Match \29 May 2012
164Szabo Laszlo (HUN)1903Matanovic Aleksan...24901-033 ≣E41Match \
20Moisieev Oleg L (...2385Stoeckl Ernst (AUT)21741-038 ≣E46Match \
370Anapolsky Sergey ...2407Ostojic Nikola (SRB)24461-039 ≣E47Match \
724Kovalenko Igor (UKR)2578Zubarev Alexander...26081-031 ≣E47Memorial A.Ermak ...01 Jul 2011
623D'apa Matteo (ITA)2026Cardani Roberto (...19031-050 ≣E21Memorial Crespi (...08 Dec 2006
569Ramirez Alejandro...2519Hernandez Holden ...24731-039 ≣E46Memorial C.Torre ...
355Foldi Istvan (HUN)2285Schmittdiel Eckha...24550-136 ≣E41Memorial Elekes
624Pushkov Nikolai (...2513Kornyukov Alexey ...24161-037 ≣E21Memorial G.I.Ivan...03 Jan 2007
759Arishin Sergei (KGZ)2183Nukin Ashat (KAZ)23470-125 ≣E21Memorial Izmailov...12 Aug 2012
216Knaak Rainer (GER)2515Garcia Gonzales G...24501-042 ≣E41Memorial J.Capabl...
577Gonzalez Garcia J...2447Hernandez Holden ...24731-033 ≣E47Memorial J.Capabl...12 May 2004
694Potkin Vladimir (...2630Corrales Fidel (CUB)25991-035 ≣E40Memorial J.Capabl...16 Jun 2010
676Miranda Yerisbel ...2194Garcia Pantoja Ro...23760-134 ≣E41Memorial J.Capabl...11 Jun 2009
597Claassen Chris (USA)2071Harper Warren (USA)23140-144 ≣E47Memorial Jerry Spann18 Jun 2005
478Nor Igor (ISR)2280Seidl Juergen (GER)21701-035 ≣E41Memorial Karl Wag...
637Nikolov Sasho (BUL)2409Nikolov Momchil (...24890-122 ≣E47Memorial Kesarovs...13 Sep 2007
688Zilberman Yaacov ...2439Lerner Konstantin...25490-133 ≣E47Memorial L.Slutsk...19 Dec 2009
510Korotylev Alexey ...2528Paramonov Dimitri...23321-032 ≣E47Memorial M.Chigor...
574Garcia Gata Jorge...2021Dimitrov Vladimir...24340-126 ≣E47Memorial Narciso ...
525Figueroa Tomas (CHI)2104Vasquez Rodrigo (...24680-123 ≣E47Memorial Pedro Do...