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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
263Keene Raymond D (...2455Romanishin Oleg M...25600-140 ≣E41?
265Podgaets Mikhail ...2450Romanishin Oleg M...25601-049 ≣E41?
179Klompus GrigoryRoskov V1-037 ≣E47corr.
2Gligoric Svetozar...2447Rossolimo Nichola...24501-041 ≣E41It
187Teschner Rudolf (...2295Rossolimo Nichola...24500-140 ≣E47It
184Donner Jan-Hein (...2430Rovira Mas Jorge ...22901-036 ≣E41Olympiad
96Prokhorovich Taras ERovner Dmitry Osi...1-048 ≣E47Tournament
70Furman Semen (RUS)2550Rovner Dmitry (RUS)1-023 ≣E47Ch Leningrad
197Ivanchenko Sergey...2054Rovner Dmitry (RUS)0-138 ≣E41?
568Zilberstein Dmitr...2379Rowley Robert (USA)22821-032 ≣E47It \
342Balashov Yuri S (...2540Rozentalis Eduard...24901-032 ≣E47Ch URS (1 liga) (...
165Averbakh Yuri L (...2445Rozhdestvensky V1-048 ≣E47Ch URS (team)
245Juhnke Karl (GER)2178Ruehrig Volkhard ...0-137 ≣E47Ch Germany (team)...
159Lapienis Donatas ...2282Rusakov Jury (RUS)22470-124 ≣E41Ch Lithuania
695Kozenkov Valery (...2132Rutman Aleksandr ...21441-027 ≣E40It (open) \24 Jun 2010
635Kozakov Mikhail (...2449Rybak Tomasz (POL)22821-041 ≣E47Tournament (open)28 Jul 2007
500Bernat Marcin (POL)2227Rybak Tomasz (POL)21631-030 ≣E41Ch Poland (team) ...
600Laasanen Teemu (FIN)2140Saastamoinen Aarn...21650-147 ≣E47Ch Finland (team)...10 Sep 2005
88Angos AlexanderSafvat Y0-121 ≣E10Olympiad
149Niemela IlmariSafvat Y1-029 ≣E41Olympiad
138Omari FatosSafvat Younnus0-142 ≣E41Olympiad
59Ciocaltea Viktor ...2420Safvat Yousof (IRN)0-146 ≣E41Olympiad (sf)06 Sep 1956
761Spindelboeck Gern...2227Sakelsek Tadej (SLO)24361-026 ≣E46It (open)26 Aug 2012
32Najdorf Miguel (POL)2445Salas Romo Julio ...1-031 ≣E47It
154Binkauskas BSalminsh Gedimins...0-139 ≣E47Cup Baltic (corr.)
717Sokolov Ivan (NED)2673Sammalvuo Tapani ...24771-034 ≣E47It (open)13 Mar 2011
656Bagapsh Astamur (...Sanakoev Grigory ...22590-120 ≣E21It (open) (a)03 Aug 2008
604Galvan Jesus (PER)2226Sanchez Aller Fer...22740-123 ≣E47It (open)15 Nov 2005
701Del Rio Angelis S...2515Sanchez Gonzalez ...22881-046 ≣E47It (open)11 Sep 2010
710Nieto De La Cruz ...2154Sanchez Gonzalez ...22861-043 ≣E47Liga Madrilena 20...09 Jan 2011
44Idigoras GregorioSanguinetti J0-145 ≣E41Ch Argentina
206MoranSantoro O1-031 ≣E47Ch Europe (team) ...
172Kolarov Atanas S ...2415Sapunov Lilko1-028 ≣E41Ch Bulgaria01 Mar 1966
178Portisch Lajos (HUN)2523Sarapu Ortvin (NZL)22551-036 ≣E47Izt
145Morgulov Alexsand...2335Sardarov Edward (...22060-131 ≣E41Ch Azerbaijan
240Christoffel Marti...Sarosi Zoltan (HUN)22971-040 ≣E47Olympiad (corr.)
241Kuuskmaa EndelSarosi Zoltan (HUN)22970-144 ≣E47Olympiad (corr.)
719Wojtaszek Radosla...2704Sasikiran Krishna...26890-140 ≣E47It (cat.18)17 May 2011
696Lahiri Atanu (IND)2341Savic Miodrag R (...25030-143 ≣E41It (open)12 Jul 2010
203Corleo GSchaetzel F0-124 ≣E47Ch Europe (corr.)
261Cherek GunterSchimron H0-129 ≣E40corr.
195FehsingerSchlosser1-029 ≣E41Europe Tournament...
192Hofmann GeorgeSchmid Hans-Peter...18990-142 ≣E41corr.
355Foldi Istvan (HUN)2285Schmittdiel Eckha...24550-136 ≣E41Memorial Elekes
174Podgaets Mikhail ...2465Schoeneberg Manfr...22791-033 ≣E47Ch World (students)
736Petrov Mikhail (RUS)Schott Raimund (FRA)0-138 ≣E47Verbandsliga Bade...06 Nov 2011
493Buhmann Rainer (GER)2386Schreiner Richard...21921-049 ≣E47Bundesliga (2nd) ...
636Koelbl Wolfgang (...1912Schulte Torsten (...22310-130 ≣E47It (open)02 Aug 2007
186Bronstein Luis (ARG)2349Schweber Samuel (...23480-138 ≣E41It
713Schnider Gert (AUT)2358Schwenk Andreas (...21301-035 ≣E11It (open)17 Feb 2011
329MatthaeiSebald Ralph1-028 ≣E41corr.
105O'kelly De Galway...2460Secchi Ernesto1-042 ≣E41Ch World (corr.)
478Nor Igor (ISR)2280Seidl Juergen (GER)21701-035 ≣E41Memorial Karl Wag...
507Rozumbersky ASeiner F1-032 ≣E47It (open)
302MolzahnSelke Horst1-035E47corr.
394Semkov Semko (BUL)2450Serrano Marhuenda...21031-022 ≣E47It (open)
200Cardoso Carlos Al...2207Sharif Mehrshad (...23300-141 ≣E41Olympiad
201Littleton Michael...2275Sharif Mehrshad (...23301-012 ≣E10Olympiad
95Evans Larry M (USA)2470Sherwin James T (...22460-142 ≣E41Ch USA
112Souza Mendes JoaoShocron Ruben (USA)22591-046 ≣E41?
85Emma Jaime (ARG)2395Shocron Ruben (USA)22591-037 ≣E47?
225Gorniak Juri (MDA)Siniavsky Alexander1-021 ≣E21Olympiad URS
679Mouritsen Jan (DEN)1758Skovgaard Tom (DEN)19830-143 ≣E47It (open) \22 Jul 2009
452Iskusnyh Sergei (...2460Skvortsov A (RUS)23370-137 ≣E47Ch Russia (1/2 fi...
310Genovese ESleidinger GR1-040 ≣E46?
35Szabo Laszlo (HUN)1903Sliwa Bogdan (POL)22351-028 ≣E47Zt
224Beliavsky Alexand...2500Slutzky Leonid (ISR)23281-030 ≣E47Olympiad URS
511Savon Vladimir A ...2449Smirnov Igor (UKR)24161-047 ≣E41Ch Ukraine (team)
659Kuchynka Lubos (CZE)2050Smith David J (IRL)18281-038 ≣E47It (open)24 Aug 2008
503Rogers Ian (AUS)2574Solomon Stephen J...24351-041 ≣E47It (cat.10)
530Jussupow Artur (GER)2633Solomunovic Igor ...24211-037 ≣E47It (open)
747Tovmasian Vardges...2420Soltanici Ruslan ...23970-142 ≣E47Memorial V.Naboko...25 Apr 2012
141Lengyel Levente (...2293Somogyi Istvan (HUN)22051-041 ≣E47Ch Hungary
495Kovacs Istvan (HUN)2236Somogyi Istvan (HUN)22381-050 ≣E21Ch Hungary (team)...
652Fistek Dariusz (POL)2265Sopur Lech (POL)24250-135 ≣E10It (open)28 Apr 2008
540Salo Heikki (FIN)2279Sorsa Nuutti (FIN)22311-040 ≣E47Ch Finland (team)...
519Salo Heikki (FIN)2242Sorsa Nuutti (FIN)22771-038 ≣E47Ch Finland (team)...
522Kekki Petri (FIN)2300Sorsa Nuutti (FIN)22771-046 ≣E47Ch Finland
253Portisch Lajos (HUN)2630Sosonko Gennadi (...25751-038 ≣E41It (cat.14)
669Mogoranskikh Anto...2080Sotnikovich Georg...20431-029 ≣E47Ch Club MEPHI (1 ...19 Feb 2009
5Martin Pedro (ARG)2021Souza Mendes Joao1-034 ≣E41Zt
40Schweber Samuel (...2348Spassky Boris V (...25480-135 ≣E41Ch World (juniors...
39Jorgensen Vagn RauheSpassky Boris V (...25480-133 ≣E41Ch World (juniors...
166Petrosian Tigran ...2580Spassky Boris V (...25481-041 ≣E47Ch World (match)
47Furman Semen (RUS)2550Spassky Boris V (...25481-029 ≣E41Ch URS
256Chandler Murray G...2380Speelman Jonathan...24700-144 ≣E47It
301KummerStache1-047 ≣E47corr.
380Popov Sinisa S (SRB)2443Stanimirovic Alek...22401-031 ≣E40Ch Yugoslavia (team)
492Gislason IngolfurSteindorsson Sigu...20520-135 ≣E47It (open) \
67Gligoric Svetozar...2447Stenborg Ake (SWE)22800-148 ≣E41Zt
55Dittmann SieghardSterner Olaf1-048 ≣E47It
93Pachman Ludek (GER)2278Sterner Olaf1-043 ≣E47Olympiad
126O'kelly De Galway...2460Stockl E1-039 ≣E47It
20Moisieev Oleg L (...2385Stoeckl Ernst (AUT)21741-038 ≣E46Match \
494Kay JBStracy D (NZL)1-033 ≣E41Ch North Island (b)
319Radulov LStrand1-046 ≣E46Europe Tournament...
527Graf Alexander (GER)2610Sulskis Sarunas (...25711-031 ≣E47Ch World FIDE (KO...
738Netusil Miroslav ...2318Sura Jaroslav (CZE)21871-033 ≣E47Ch Czech Republic...27 Nov 2011
354Remensberger HSuri Hans (SUI)20081-038 ≣E47It (open)
749Korobov Anton (UKR)2679Swiercz Dariusz (...25651-045 ≣E47Match \29 May 2012