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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
92Ojanen Kaarle S (...2335Euwe Max (NED)0-131 ≣E41Olympiad
59Ciocaltea Viktor ...2420Safvat Yousof (IRN)0-146 ≣E41Olympiad (sf)06 Sep 1956
25Taimanov Mark E (...2386Euwe Max (NED)0-141 ≣E41Tournament (candi...
362Garralda AGarcia Trobat Fra...22910-133E41It (open)
736Petrov Mikhail (RUS)Schott Raimund (FRA)0-138 ≣E47Verbandsliga Bade...06 Nov 2011
320Hoffmann Hans (GER)2120Garscha F0-125 ≣E46corr.
38Fuderer Andrija (...Rabar Braslav (YUG)0-139 ≣E47Ch Yugoslavia (ma...
17Najdorf Miguel (POL)2445Reshevsky Samuel ...24300-135 ≣E41Match
76Dittmann SieghardOlafsson Fridrik ...24340-140 ≣E41Olympiad (student...
68Golz Werner (GER)2410Rellstab Ludwig S...22650-124 ≣E40It
37Milic Borislav (YUG)Matanovic Aleksan...24900-140 ≣E41Match
346Bokor Istvan (HUN)2226Horvath Csaba (HUN)24450-149 ≣E47It (open) \
395Muir Andrew J (SCO)2360Prandstetter Edua...23750-149E47Cup European Club
355Foldi Istvan (HUN)2285Schmittdiel Eckha...24550-136 ≣E41Memorial Elekes
674Nikolov Sasho (BUL)2416Nikolov Momchil (...25170-136 ≣E47Ch Bulgaria (team)09 May 2009
364Manor Ilan (ISR)2476Horvath Jozsef M ...21040-139 ≣A46It \
204Pulieri PaoloMicka0-132 ≣E47Ch Europe (corr.)
279Easton Alex (SCO)2147Miles Jana0-135 ≣E47It (open)
613Melnichuk Mikhail...2227Kovalenko Igor (UKR)23250-136 ≣D02Ch Ukraine (junio...12 Mar 2006
600Laasanen Teemu (FIN)2140Saastamoinen Aarn...21650-147 ≣E47Ch Finland (team)...10 Sep 2005
58Barda Yngvar (NOR)2280Keller Dieter Ren...23590-128 ≣E41Olympiad (sf)02 Sep 1956
267Endzelins Lucius ...Bouwmeester Hans ...23430-144 ≣E47Memorial Perfors ...
83Kluger Gyula (HUN)2250Ivkov Borislav (SRB)24160-130 ≣E47Match \
153Emma Jaime (ARG)2395Polo Gomez Vicent...22120-144 ≣E41Ch Buenos Aires (...
741Ben Arzi Ido (ISR)2284Becking Franz-Jos...19560-138E47It (open) \29 Jan 2012
379Manchego CarlosDebarnot Roberto ...23550-143 ≣E21It (open) \
676Miranda Yerisbel ...2194Garcia Pantoja Ro...23760-134 ≣E41Memorial J.Capabl...11 Jun 2009
16Idigoras GregorioMarini Luis0-143 ≣E41Ch Argentina
667Yurkov Alexey (UKR)2163Mazurchak Bogdan ...21870-139 ≣E47Ch Ukraine (junio...14 Feb 2009
559Golovchenko Gleb ...2260Vlasov Egor (RUS)22510-136 ≣E41Ch City (juniors)...
60Uhlmann Wolfgang ...2434Olafsson Fridrik ...24340-130 ≣A17Olympiad10 Sep 1956
462Usachyi Vladimir ...2245Baklan Vladimir (...25700-130 ≣E41It (open)
6Nikolac Juraj (CRO)2438Matanovic Aleksan...24900-128 ≣E41Ch Yugoslavia
419Jussupow Artur (GER)2655Beliavsky Alexand...26400-139 ≣E47It
40Schweber Samuel (...2348Spassky Boris V (...25480-135 ≣E41Ch World (juniors...
127Cruz RaulLopez Bahamonde0-133E47Ch Argentina
44Idigoras GregorioSanguinetti J0-145 ≣E41Ch Argentina
350Kozma Julius (CSR)2380Beran Josef (CZE)22700-146 ≣E47Ch Czechoslovakia...
140Herren WalterBernhardt Rolf (GER)22880-140 ≣E41It
145Morgulov Alexsand...2335Sardarov Edward (...22060-131 ≣E41Ch Azerbaijan
88Angos AlexanderSafvat Y0-121 ≣E10Olympiad
147Krutiansky Anatoly AZhdanov Igor0-127 ≣E41Ch Latvia
77SehlstedtBlatny Frantisek ...21120-141 ≣E41Olympiad (student...
313Portisch Ferenc (...2405Rigo Janos (HUN)23190-141 ≣E47It (open)
610Muir Andrew J (SCO)2341Bellia Fabrizio (...23950-136 ≣E47It (cat.7)17 Feb 2006
564Pavlovic Milos (SRB)2481Beliavsky Alexand...26600-124 ≣E47Ch Slovenia (team)
396Yepez Olavo (ECU)2305Narciso Dublan Ma...23000-123 ≣E40It (open)
442Karp Serge (LUX)2095Pytel Krzysztof (...24250-122 ≣E10It (open)
173Lukic ArsenijeDamjanovic Mato (...23030-134 ≣E21It
177Barczay Laszlo (HUN)2381Korchnoi Viktor (...25560-127 ≣E47Izt
276Beutler MKuhn0-128 ≣E47corr.
67Gligoric Svetozar...2447Stenborg Ake (SWE)22800-148 ≣E41Zt
680Mareco Sandro (ARG)2503Corrales Fidel (CUB)26020-142E10Ch Continental Am...30 Jul 2009
4Martin Pedro (ARG)2021Bolbochan Julio (...24400-132 ≣E47Zt
650Medina Sanchez Gi...1711Ramirez Alvarez R...20360-134 ≣D31It (open)26 Apr 2008
7Vukovic Sava (YUG)Rabar Braslav (YUG)0-123 ≣E41Ch Yugoslavia
8Vukovic Sava (YUG)Rabar Braslav (YUG)0-123 ≣E41Ch Yugoslavia
196Karjarinta TapaniNurmi Toivo0-128 ≣E41?
352Cenni F1620Alagna S0-125 ≣E46corr.
208Steiner Josef (AUT)2116Kauranen Risto0-130 ≣E47It (cat.7)
9Germek MilanO'kelly De Galway...24600-134 ≣E41It
222Ball Stephen (CAN)2225Dobrich Walter (CAN)22300-128 ≣E47Ch Canada
229Svensson Gert (SWE)2215Bengtsson Bo (SWE)23000-138 ≣E47Ch Sweden
234Just Joachim (GER)2047Potthammel Joerg ...21300-140 ≣A17Ch DDR (corr.)
23Geller Efim P (RUS)2455Kotov Alexander A...25000-142 ≣E41Tournament (candi...
469Computer \Luther Thomas (GER)25250-146 ≣A40It (cat.7)
29Rabar Braslav (YUG)Janosevic Dragolj...23300-147 ≣E41It
31PasmanTal Mikhail N (LAT)25200-133 ≣E47Ch Latvia
496Balogh JBoros Laszlo (HUN)19190-139 ≣E41Ch Hungary (team)...
468Pieniazek Artur (...2415Luther Thomas (GER)25250-136 ≣A40It (open) (a)
34Burger Karl (USA)2310Evans Larry M (USA)24700-122 ≣E47Ch USA
574Garcia Gata Jorge...2021Dimitrov Vladimir...24340-126 ≣E47Memorial Narciso ...
39Jorgensen Vagn RauheSpassky Boris V (...25480-133 ≣E41Ch World (juniors...
261Cherek GunterSchimron H0-129 ≣E40corr.
43Idigoras GregorioNajdorf Miguel (POL)24450-139 ≣E41Ch Argentina
45Furman Semen (RUS)2550Antoshin Vladimir...22500-146 ≣E41Ch URS
709Gonzalez Manchon ...2091Kolev Atanas (BUL)25710-134 ≣E46It (open)04 Dec 2010
546Davydenko Andrey ...2080Novoselsky Oleg (...21950-140 ≣E46Memorial Y.Sakhar...
48Vladimirov Boris ...2340Lisitsyn Georgy (...0-133 ≣E41Ch URS (1/2 final)
326Frieser Klaus (GER)2151Prizant Michael (...21360-138 ≣E41Europe Tournament...
56Wexler FranciscoNajdorf Miguel (POL)24450-143 ≣A17It
538Netusil Miroslav ...2306Prandstetter Edua...23650-135 ≣E47Czech League (V) ...
323CartensLaarhoven Thijs (...22110-143 ≣E47corr.
213Bergdahl AssarNordstrom Felix (...21810-140 ≣E41corr.
641Chuprikov Dmitry ...2404Belikov Vladimir ...25780-141 ≣E47Ch City09 Dec 2007
743Burnett Jim (ENG)2137Hawkins Jonathan ...24800-147 ≣E47It (open)09 Mar 2012
36Simagin Vladimir ...Gipslis Aivars (LAT)24290-143 ≣A17Ch URS (team)
593Mercier Pierre (FRA)1770Delort Frederic (...21700-122 ≣D31It (open)18 Apr 2005
283Goehring Karl-Hei...2335Unzicker Wolfgang...25100-139 ≣E47Bundesliga 1982/83
480Cody Philip CMary Patrick0-145 ≣E47?
80Uhlmann Wolfgang ...2379Szabo Laszlo (HUN)19030-131 ≣E47Zt
81Yepez Olavo (ECU)2305Blatny Frantisek ...21120-123 ≣E41Ch World (team) (...
82Dzieciolowski AdamWiniwarter Felix ...21760-133 ≣E41Memorial Przepiorka
263Keene Raymond D (...2455Romanishin Oleg M...25600-140 ≣E41?
436Sjoberg Mats (SWE)2450Kveinys Aloyzas (...25150-136 ≣E47It (open)
87Donner Jan-Hein (...2430Larsen Bent (DEN)24150-133 ≣E41Match
90Johannsson Ingi R...2410Anderson Frank R ...0-127 ≣A17Olympiad
94Ravn PalleCatozzi H0-133 ≣E47Olympiad
95Evans Larry M (USA)2470Sherwin James T (...22460-142 ≣E41Ch USA
399Liimatta MarttiKirsi Vesa0-130 ≣E46?