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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
124Varnusz Egon (HUN)2345Flesch Janos0-142 ≣E46Ch Hungary
180ZverevicMarkovic Igor (CRO)22070-140 ≣E41Tournament (corr.)
29Rabar Braslav (YUG)Janosevic Dragolj...23300-147 ≣E41It
120Thorbergsson Frey...2340Humerez C0-132 ≣E41Olympiad
152Garcia Horacio2200Polo Gomez Vicent...22120-134 ≣E41Ch Buenos Aires
177Barczay Laszlo (HUN)2381Korchnoi Viktor (...25560-127 ≣E47Izt
6Nikolac Juraj (CRO)2438Matanovic Aleksan...24900-128 ≣E41Ch Yugoslavia
23Geller Efim P (RUS)2455Kotov Alexander A...25000-142 ≣E41Tournament (candi...
80Uhlmann Wolfgang ...2379Szabo Laszlo (HUN)19030-131 ≣E47Zt
115Donner Jan-Hein (...2430Matanovic Aleksan...24900-137 ≣E41It
147Krutiansky Anatoly AZhdanov Igor0-127 ≣E41Ch Latvia
151Farago Ivan (HUN)2488Dely Peter (HUN)23910-124 ≣E47Ch Hungary
156Harjunpaa VeikkoTschernauskas0-134 ≣E41Cup Baltic (corr.)
173Lukic ArsenijeDamjanovic Mato (...23030-134 ≣E21It
83Kluger Gyula (HUN)2250Ivkov Borislav (SRB)24160-130 ≣E47Match \
667Yurkov Alexey (UKR)2163Mazurchak Bogdan ...21870-139 ≣E47Ch Ukraine (junio...14 Feb 2009
442Karp Serge (LUX)2095Pytel Krzysztof (...24250-122 ≣E10It (open)
8Vukovic Sava (YUG)Rabar Braslav (YUG)0-123 ≣E41Ch Yugoslavia
31PasmanTal Mikhail N (LAT)25200-133 ≣E47Ch Latvia
45Furman Semen (RUS)2550Antoshin Vladimir...22500-146 ≣E41Ch URS
87Donner Jan-Hein (...2430Larsen Bent (DEN)24150-133 ≣E41Match
113Minev Nikolay N (...2370Blatny Frantisek ...21120-137 ≣E41It
145Morgulov Alexsand...2335Sardarov Edward (...22060-131 ≣E41Ch Azerbaijan
146Jenik JHannemann H0-119 ≣E41Europe Tournament...
383Michenka Jozef (CZE)2346Prandstetter Edua...24100-133 ≣E47Ch Czechoslovakia...
600Laasanen Teemu (FIN)2140Saastamoinen Aarn...21650-147 ≣E47Ch Finland (team)...10 Sep 2005
67Gligoric Svetozar...2447Stenborg Ake (SWE)22800-148 ≣E41Zt
154Binkauskas BSalminsh Gedimins...0-139 ≣E47Cup Baltic (corr.)
160Bachtiar Arovah (...2285Damjanovic Mato (...23030-140 ≣E47It \
167Luckis Marcos2270Alvarez Jose_ (CUB)23680-126 ≣E47Zt
279Easton Alex (SCO)2147Miles Jana0-135 ≣E47It (open)
58Barda Yngvar (NOR)2280Keller Dieter Ren...23590-128 ≣E41Olympiad (sf)02 Sep 1956
676Miranda Yerisbel ...2194Garcia Pantoja Ro...23760-134 ≣E41Memorial J.Capabl...11 Jun 2009
16Idigoras GregorioMarini Luis0-143 ≣E41Ch Argentina
88Angos AlexanderSafvat Y0-121 ≣E10Olympiad
396Yepez Olavo (ECU)2305Narciso Dublan Ma...23000-123 ≣E40It (open)
4Martin Pedro (ARG)2021Bolbochan Julio (...24400-132 ≣E47Zt
7Vukovic Sava (YUG)Rabar Braslav (YUG)0-123 ≣E41Ch Yugoslavia
307Gil Capape Javier...2444Janssen Han (NED)23280-147 ≣E47It \
25Taimanov Mark E (...2386Euwe Max (NED)0-141 ≣E41Tournament (candi...
39Jorgensen Vagn RauheSpassky Boris V (...25480-133 ≣E41Ch World (juniors...
43Idigoras GregorioNajdorf Miguel (POL)24450-139 ≣E41Ch Argentina
41Somers StafJorgensen Vagn Rauhe0-139 ≣E41Ch World (juniors...
82Dzieciolowski AdamWiniwarter Felix ...21760-133 ≣E41Memorial Przepiorka
94Ravn PalleCatozzi H0-133 ≣E47Olympiad
95Evans Larry M (USA)2470Sherwin James T (...22460-142 ≣E41Ch USA
131Hybl Jaroslav (CZE)2172Blatny Frantisek ...21120-133 ≣E47Ch Czechoslovakia
140Herren WalterBernhardt Rolf (GER)22880-140 ≣E41It
40Schweber Samuel (...2348Spassky Boris V (...25480-135 ≣E41Ch World (juniors...
741Ben Arzi Ido (ISR)2284Becking Franz-Jos...19560-138E47It (open) \29 Jan 2012
559Golovchenko Gleb ...2260Vlasov Egor (RUS)22510-136 ≣E41Ch City (juniors)...
462Usachyi Vladimir ...2245Baklan Vladimir (...25700-130 ≣E41It (open)
419Jussupow Artur (GER)2655Beliavsky Alexand...26400-139 ≣E47It
594Brener Ilja (GER)2334Lettieri Giuseppe...22650-150 ≣E40Cup Mitropa25 May 2005
350Kozma Julius (CSR)2380Beran Josef (CZE)22700-146 ≣E47Ch Czechoslovakia...
200Cardoso Carlos Al...2207Sharif Mehrshad (...23300-141 ≣E41Olympiad
678Murillo Alexis (CRC)2310Iturrizaga Eduard...25550-146 ≣E40Zt24 Jun 2009
564Pavlovic Milos (SRB)2481Beliavsky Alexand...26600-124 ≣E47Ch Slovenia (team)
313Portisch Ferenc (...2405Rigo Janos (HUN)23190-141 ≣E47It (open)
159Lapienis Donatas ...2282Rusakov Jury (RUS)22470-124 ≣E41Ch Lithuania
161Bachtiar Arovah (...2285Donner Jan-Hein (...24300-144 ≣E41It \
680Mareco Sandro (ARG)2503Corrales Fidel (CUB)26020-142E10Ch Continental Am...30 Jul 2009
9Germek MilanO'kelly De Galway...24600-134 ≣E41It
196Karjarinta TapaniNurmi Toivo0-128 ≣E41?
352Cenni F1620Alagna S0-125 ≣E46corr.
229Svensson Gert (SWE)2215Bengtsson Bo (SWE)23000-138 ≣E47Ch Sweden
48Vladimirov Boris ...2340Lisitsyn Georgy (...0-133 ≣E41Ch URS (1/2 final)
287Gomez AmalioCorral Blanco Jua...24360-144 ≣E47Ch Asturias (team)
496Balogh JBoros Laszlo (HUN)19190-139 ≣E41Ch Hungary (team)...
574Garcia Gata Jorge...2021Dimitrov Vladimir...24340-126 ≣E47Memorial Narciso ...
204Pulieri PaoloMicka0-132 ≣E47Ch Europe (corr.)
44Idigoras GregorioSanguinetti J0-145 ≣E41Ch Argentina
77SehlstedtBlatny Frantisek ...21120-141 ≣E41Olympiad (student...
610Muir Andrew J (SCO)2341Bellia Fabrizio (...23950-136 ≣E47It (cat.7)17 Feb 2006
54Enevoldsen Jens (...2350Larsen Bent (DEN)24150-129 ≣E41It
276Beutler MKuhn0-128 ≣E47corr.
641Chuprikov Dmitry ...2404Belikov Vladimir ...25780-141 ≣E47Ch City09 Dec 2007
580Jovic Stevan (SRB)2080Ilincic Zlatko (SRB)25220-125 ≣E47Ch Vojvodina (team)26 Sep 2004
92Ojanen Kaarle S (...2335Euwe Max (NED)0-131 ≣E41Olympiad
119Borja MEuwe Max (NED)0-134 ≣E41Olympiad
263Keene Raymond D (...2455Romanishin Oleg M...25600-140 ≣E41?
436Sjoberg Mats (SWE)2450Kveinys Aloyzas (...25150-136 ≣E47It (open)
472Kostin Sergei (RUS)2290Tunik Gennady (RUS)24500-147 ≣E41Cup Russia (open)
34Burger Karl (USA)2310Evans Larry M (USA)24700-122 ≣E47Ch USA
17Najdorf Miguel (POL)2445Reshevsky Samuel ...24300-135 ≣E41Match
59Ciocaltea Viktor ...2420Safvat Yousof (IRN)0-146 ≣E41Olympiad (sf)06 Sep 1956
76Dittmann SieghardOlafsson Fridrik ...24340-140 ≣E41Olympiad (student...
362Garralda AGarcia Trobat Fra...22910-133E41It (open)
37Milic Borislav (YUG)Matanovic Aleksan...24900-140 ≣E41Match
81Yepez Olavo (ECU)2305Blatny Frantisek ...21120-123 ≣E41Ch World (team) (...
38Fuderer Andrija (...Rabar Braslav (YUG)0-139 ≣E47Ch Yugoslavia (ma...
736Petrov Mikhail (RUS)Schott Raimund (FRA)0-138 ≣E47Verbandsliga Bade...06 Nov 2011
674Nikolov Sasho (BUL)2416Nikolov Momchil (...25170-136 ≣E47Ch Bulgaria (team)09 May 2009
68Golz Werner (GER)2410Rellstab Ludwig S...22650-124 ≣E40It
395Muir Andrew J (SCO)2360Prandstetter Edua...23750-149E47Cup European Club
127Cruz RaulLopez Bahamonde0-133E47Ch Argentina
267Endzelins Lucius ...Bouwmeester Hans ...23430-144 ≣E47Memorial Perfors ...
138Omari FatosSafvat Younnus0-142 ≣E41Olympiad
153Emma Jaime (ARG)2395Polo Gomez Vicent...22120-144 ≣E41Ch Buenos Aires (...
181Cherepkov Alexand...2395Tseshkovsky Vital...24720-141 ≣E41Ch URS