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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
710Nieto De La Cruz ...2154Sanchez Gonzalez ...22861-043 ≣E47Liga Madrilena 20...09 Jan 2011
715Nieto Emanuel (BEL)2275Tjiam Dharma (NED)23820-140 ≣E41Ch Belgium (team)...27 Feb 2011
537Niklasch Oliver (...2324Kveinys Aloyzas (...25410-132 ≣E47It (open)
6Nikolac Juraj (CRO)2438Matanovic Aleksan...24900-128 ≣E41Ch Yugoslavia
657Nikolaev Alexande...1986Abylkassymova Rau...18341-039E40Tournament (open) \05 Aug 2008
637Nikolov Sasho (BUL)2409Nikolov Momchil (...24890-122 ≣E47Memorial Kesarovs...13 Sep 2007
677Nikolov Sasho (BUL)2416Videnova Iva (BUL)21970-148 ≣E47It (open)23 Jun 2009
674Nikolov Sasho (BUL)2416Nikolov Momchil (...25170-136 ≣E47Ch Bulgaria (team)09 May 2009
139Noi (LUX)Safvat J (IRI)0-120 ≣A06Olympiad
478Nor Igor (ISR)2280Seidl Juergen (GER)21701-035 ≣E41Memorial Karl Wag...
488Nor Igor (ISR)2280Jagodzinski Andre...22150-141 ≣E47It (cat.2)
369Norri Joose (FIN)2291Hall Jesper (SWE)24931-042 ≣E47It (open)
365Ograbek Grzegorz ...2177Gaida H0-124 ≣E47Ch Poland (corr.)
130Oikamo ReijoUitto Matti1-030 ≣E47?
92Ojanen Kaarle S (...2335Euwe Max (NED)0-131 ≣E41Olympiad
162Ojanen Kaarle S (...2335Cuartas Carlos (COL)22561-026 ≣E41Olympiad
51O'kelly De Galway...2460Rabar Braslav (YUG)1-030 ≣E47It
126O'kelly De Galway...2460Stockl E1-039 ≣E47It
105O'kelly De Galway...2460Secchi Ernesto1-042 ≣E41Ch World (corr.)
284Olafsson Helgi (ISL)2270Zaltsman Vitaly F...24451-036 ≣A17It (open)
138Omari FatosSafvat Younnus0-142 ≣E41Olympiad
358Oriansky AGaspariants I1-048 ≣E47Ch Europe (corr.)
306Ostenstad Berge (...2315O'Cinneide Mel (IRL)22341-028 ≣E46Ch World (juniors...03 Aug 1984
596Ovod Evgenija (RUS)2366Kosintseva Nadezh...24860-135 ≣E47Ch Europe (w)14 Jun 2005
646Ovod Evgenija (RUS)2429Iljushina Olga (RUS)23111-034 ≣E47Ch Russia (club) (w)04 Apr 2008
595Pacheco Daniel (ARG)2297Ferrufino Boris (...22111-041 ≣E21It (cat.2)12 Jun 2005
93Pachman Ludek (GER)2278Sterner Olaf1-043 ≣E47Olympiad
50Palmason Gudmundu...2270Einarsson Jon1-029 ≣E41It
232Palmo Pentti (FIN)2065Hietanen Pentti1-033 ≣E21?
210Pamperin Gerhard ...1999Albert Garrote Am...18681-028 ≣E47corr.
289Panno Oscar (ARG)2515Hase Juan C (ARG)24151-029 ≣A05It (a)
78Panno Oscar (ARG)2438Rossetto Hector (...22851-035 ≣A17Zt
84Panno Oscar (ARG)2438Garcia Vera Romeo1-032 ≣E41Ch Argentina
18Panno Oscar (ARG)2438Ivkov Borislav (SRB)24161-024 ≣E10Ch World (juniors)
410Pappa Domingo (ARG)2120Deforel Jorge Edu...1-021 ≣E47corr.
432Parulava Temur (GER)2287Ellers Holger (GER)23600-138 ≣E47Ch Germany (junio...
414Parulava Temur (GER)2287Dudek Richard (GER)22450-120 ≣E41Bundesliga (2nd) ...
31PasmanTal Mikhail N (LAT)25200-133 ≣E47Ch Latvia
564Pavlovic Milos (SRB)2481Beliavsky Alexand...26600-124 ≣E47Ch Slovenia (team)
562Pelletier Yannick...2589Lutz Christopher ...25961-041 ≣E47It (cat.16)
619Pelletier Yannick...2588Volokitin Andrei ...26451-030 ≣E47It (cat.17)03 Aug 2006
725Peralta Fernando ...2602Cruz Jonathan (PER)24121-042 ≣E47It (open)03 Jul 2011
601Peralta Fernando ...2538Papp Gabor (HUN)24740-125 ≣E47It (open)24 Oct 2005
730Peralta Fernando ...2601Pavlidou Ekaterin...22201-039 ≣E47It (open)19 Aug 2011
754Peralta Fernando ...2602Cori T Deysi (PER)23861-031 ≣E47It (open)03 Jul 2012
607Perepelitsky Edwa...2123De Guzman Ricardo...23830-133 ≣E47It (open)19 Dec 2005
655Perez Inclan Jorg...1626Lorinczi Retek Pe...16861-035 ≣E41It (open)
703Pesqueira Jose (ARU)1982Dzhumabayev Rinat...25470-135 ≣E41Olympiad21 Sep 2010
136Petersons AndrejsVoitkevics P1-030 ≣E47Ch Latvia
571Petkevich Jusefs ...2436Gerenski Hristo (...22041-050 ≣A04Ch Europe (seniors)
705Petran Pal (HUN)2348Getz Nicolai (NOR)22760-133 ≣E47It (cat.1)09 Oct 2010
166Petrosian Tigran ...2580Spassky Boris V (...25481-041 ≣E47Ch World (match)
736Petrov Mikhail (RUS)Schott Raimund (FRA)0-138 ≣E47Verbandsliga Bade...06 Nov 2011
468Pieniazek Artur (...2415Luther Thomas (GER)25250-136 ≣A40It (open) (a)
463Pihlajamaki JaakkoPennanen Eino0-130 ≣E41?
321Pilgenroether MHeigl Rudolf (GER)21901-014 ≣E47corr.
257Pinter Jozsef (HUN)2445Rigo Janos (HUN)23851-040 ≣E21Ch Hungary
666Piorun Kacper (POL)2457Bartel Mateusz (POL)26190-134 ≣D31Ch Poland05 Feb 2009
265Podgaets Mikhail ...2450Romanishin Oleg M...25601-049 ≣E41?
174Podgaets Mikhail ...2465Schoeneberg Manfr...22791-033 ≣E47Ch World (students)
254Podgaets Mikhail ...2465Donchenko Anatoly...23851-033 ≣E41?
621Pogorelov Ruslan ...2462Hernandez Holden ...25240-139 ≣E47It (open)11 Oct 2006
322Pohl Walter (GER)2123Bernard H0-126 ≣E47corr.
86Polo Gomez Vicent...2212Shocron Ruben (USA)22590-142 ≣A17?
114Polugaevsky Lev A...2585Blatny Frantisek ...21121-046 ≣E41It
698Ponomariov Ruslan...2749Naiditsch Arkadij...26741-046 ≣E47It (cat.20)23 Jul 2010
380Popov Sinisa S (SRB)2443Stanimirovic Alek...22401-031 ≣E40Ch Yugoslavia (team)
588Porat Shi (ISR)2444Greet Andrew (ENG)24281-039 ≣E47It (cat.7)09 Mar 2005
258Portisch Ferenc (...2475Rigo Janos (HUN)23851-036 ≣E41Ch Hungary
313Portisch Ferenc (...2405Rigo Janos (HUN)23190-141 ≣E47It (open)
150Portisch Lajos (HUN)2523Porath Yosef (ISR)23401-044 ≣E41Olympiad
178Portisch Lajos (HUN)2523Sarapu Ortvin (NZL)22551-036 ≣E47Izt
253Portisch Lajos (HUN)2630Sosonko Gennadi (...25751-038 ≣E41It (cat.14)
489Potapov Alexander...2241Filippov Valerij ...25951-045 ≣E41Cup Russia
694Potkin Vladimir (...2630Corrales Fidel (CUB)25991-035 ≣E40Memorial J.Capabl...16 Jun 2010
642Potkin Vladimir (...2613Kiselev Vitaliy (...25271-035 ≣E47It (open)07 Feb 2008
190Poulsson Eivind (...2340Hernandez Roman (...23751-027 ≣E47Ch World (team) (...01 Aug 1969
553Prasad Devaki V (...2400Mishra Neeraj-Kum...23411-043 ≣E47Ch India
96Prokhorovich Taras ERovner Dmitry Osi...1-048 ≣E47Tournament
528Prudnikova Svetla...2411Baginskaite Camil...23361-034 ≣E47Ch World FIDE (KO...
204Pulieri PaoloMicka0-132 ≣E47Ch Europe (corr.)
685Purdon Colin (ENG)2102Downey Keith (WLS)19310-140 ≣E47It (open)20 Oct 2009
624Pushkov Nikolai (...2513Kornyukov Alexey ...24161-037 ≣E21Memorial G.I.Ivan...03 Jan 2007
684Quiroga Facundo (...2329Van Riemsdijk Her...23800-138 ≣A06Ch Paulista (final)03 Oct 2009
29Rabar Braslav (YUG)Janosevic Dragolj...23300-147 ≣E41It
592Radojevic Sasa (SRB)2104Jovic Aleksandar ...24090-125 ≣A40Cup Belgrade 2005...05 Apr 2005
319Radulov LStrand1-046 ≣E46Europe Tournament...
603Radziewicz Iweta ...2453Turov Maxim (RUS)25460-120 ≣E41It (cat.7)06 Nov 2005
211Rajkovic Dusan (SRB)2415Hort Vlastimil (GER)25901-034 ≣E47It
569Ramirez Alejandro...2519Hernandez Holden ...24731-039 ≣E46Memorial C.Torre ...
739Ramon Solans Albe...2280Cruz Jonathan (PER)23860-122 ≣E40It (cat.2)07 Dec 2011
732Rasmussen Henning...2172Byrne Ray (IRL)20540-143 ≣E10Cup European Club26 Sep 2011
270Ravikumar Vaidyan...2305Hovde Frank (NOR)22850-130 ≣E47It (open)
94Ravn PalleCatozzi H0-133 ≣E47Olympiad
384Reading MichaelLittke Adam (CAN)23100-134 ≣E47It (open)
682Rees Ioan (WLS)2339Pap Gyula (HUN)25030-146 ≣E10It (cat.8)03 Aug 2009
239Reid Alan (SCO)2205Prizant Michael (...21360-120 ≣E47Ch Great Britain
401Reinemer Frank (GER)2275Roemling Sven (GER)21601-046 ≣E41It (open)
354Remensberger HSuri Hans (SUI)20081-038 ≣E47It (open)
144Reshevsky Samuel ...2430Porath Yosef (ISR)23401-034 ≣E41Izt