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Nimzo-Indian, 4.e3, Main line with 7...Nc6 Notation: 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 dxc4 9. Bxc4 Ba5

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
204WolfRutgersson N1-030 ≣E47corr.
211Ketzscher Roland ...2085Zerbe Klaus1-031 ≣E47Europe Tournament...
74Portisch Lajos (HUN)2523Polugaevsky Lev A...2585½-½31 ≣E41?
12Ilivitzki Georgi ...2380Bisguier Arthur B...2237½-½31 ≣A17Izt
21KrznaricSobel Robert1-031 ≣E40It (open)
235Romanov Oleg (BLR)2345Lechtynsky Jiri (...24350-131 ≣E47It (open)
32Gasztonyi Endre (...2295Dely Peter (HUN)23911-031 ≣E46Ch City
106Svensson Gert (SWE)2215Haelg Adrian½-½32 ≣E47It (juniors) (und...
183Leoncini Mario (ITA)2141Mandolfo Giuseppe1-032 ≣E47?
187Dietze Wolfgang D...2250Liebert Heinz (GER)2247½-½32 ≣E47Ch DDR
137Ogaard Leif (NOR)2340Wade Robert G (ENG)23750-132 ≣E10Olympiad
143Gasiorowski Rysza...2230Adamski Jan (POL)23700-132 ≣E47Ch Poland
218Sarwinski Mirosla...2313Luczak Andrzej (POL)23701-032 ≣E21Ch Poland (team)
130Portisch Lajos (HUN)2640Pomar Salamanca A...2460½-½32 ≣A17It (cat.8)
114Miettinen ReinoKiviaho Allan (FIN)21851-032 ≣E41?
167Polugaevsky Lev A...2630Karpov Anatoly (RUS)2700½-½32 ≣E47Ch World (match) ...
248Ban Aly AlyAhmed Esam Aly (EGY)23930-133 ≣E41It (open)
171Greben KVan Der Raaf Erik...21561-033 ≣A40Ch Netherlands (j...
119Taimanov Mark E (...2600Tukmakov Vladimir...2565½-½33 ≣A17Ch URS
50Robles JavierNejjar Abderrahman½-½33 ≣E47Olympiad
53Visier Segovia Fe...2233Kristinsson Jon (...2290½-½33 ≣E41Olympiad
115Bjerre Troels (DEN)2320Saren Ilkka J (FIN)21841-034 ≣E41Tournament (team)
179Lipnowski Irwin (...2260Donoso Velasco Pe...23600-134 ≣A17It
27Bolbochan Julio (...2440Bisguier Arthur B...2237½-½34 ≣A17Izt
90Addison Wiliam G ...2490Parma Bruno (SLO)24800-134 ≣E41It
99Sirkia Mauri O (FIN)2350Langeweg Kick (NED)23090-135 ≣E41Olympiad
216Danner Georg (AUT)2415Lechtynsky Jiri (...24500-135 ≣E47It \
100Stull Norbert (LUX)2081Rodriguez Orestes...24030-135 ≣E47Olympiad
212Portisch Ferenc (...2445Lechtynsky Jiri (...24701-035 ≣E47It (cat.7)
208Rimpilainen OssiLahti Lauri0-135 ≣E47?
24Cruz RaulSchweber Samuel (...23480-135 ≣E41Ch Argentina
82Portisch Lajos (HUN)2523Benko Pal C (USA)2408½-½35 ≣E47It
70Donner Jan-Hein (...2430Parma Bruno (SLO)2480½-½35 ≣E41Memorial J.Capabl...
92Unzicker Wolfgang...2433Olafsson Fridrik ...24341-036 ≣E41It
251Sutter Oliver (SUI)2378Renet Olivier (FRA)25070-136 ≣E47Ch Switzerland (t...29 Feb 2004
215Garcia Palermo Ca...2515Garcia Martinez S...24301-036 ≣E47It
231Helwig FrankKane John½-½36 ≣E47corr.
48Ojanen Kaarle S (...2335Johansson Martin ...24301-036 ≣E41Olympiad
67Bjerre Troels (DEN)2380Neckar Lubomir (CZE)23670-137 ≣E47It
246Zhang Zhong (SIN)2657Zhang Haining1-037 ≣E47Ch China (team)
23Kollberg Lothar (...2237Troeger Rainer (GER)21700-137 ≣A40It (b)02 Jan 1957
42Sherwin James T (...2246Wood Norman W1-037 ≣E21It (open)
6Najdorf Miguel (POL)2445Reshevsky Samuel ...2430½-½37 ≣E46Match
217Sonntag Hans-Hube...2385Lechtynsky Jiri (...24401-038 ≣E46It (open)
98Rodriguez Orestes...2403Pomar Salamanca A...2345½-½38 ≣E41Olympiad
230Hrtanek Jiri (CZE)2117Lechtynsky Jiri (...23750-138 ≣E47It (open) \
238Becker Christoph ...2156Freise Friedhelm ...21380-138 ≣E21It (open)
121Tukmakov Vladimir...2565Gheorghiu Florin ...2530½-½38 ≣E41Memorial A.Alekhine
151Stolle EHerschel Knut½-½39 ≣E47corr.
174Farago Ivan (HUN)2475Lechtynsky Jiri (...23900-139 ≣E47?
46Jimenez Eleazar (...2365Johannsson Ingi R...24100-139 ≣E41Olympiad
107Portisch Lajos (HUN)2630Browne Walter S (...25001-039 ≣E41It \
51Sanguinetti Raul ...2485Johansson Martin ...2430½-½39 ≣E41Olympiad
131Podgaets Mikhail ...2485Yuferov Sergey N ...24121-039 ≣E47Memorial A.Sokolsky
84De Fotis Gregory ...2390Votruba Pavel (CZE)22411-040 ≣E47Ch World (team) (...08 Aug 1969
210Azmaiparashvili Z...2455Andrianov Nikolai...24001-040 ≣E41Ch URS (young mas...
20Gromek JozefKaraklajic Nikola...2303½-½40 ≣E47It
2Landau Salo (POL)Alexander Conel H...½-½40 ≣E47Match \06 Jun 1938
165Matera Salvatore ...2425Damjanovic Mato (...24600-140 ≣E41It
214Ketzscher Roland ...2085Zerbe Klaus1-040 ≣E47Europe Tournament...
159Podgaets Mikhail ...2465Osnos Viatcheslav...25101-040 ≣E47Ch URS (1 liga)
197Mihalcisin Adrian...2480Kochyev Alexander...25450-140 ≣E47Ch URS (1 liga)
15Wexler FranciscoGligoric Svetozar...24470-140 ≣E47It
260Zsinka Laszlo (HUN)2286Nagy Ervin (HUN)2269½-½40 ≣E47Ch Hungary (team)...29 Jan 2012
11Furman Semen (RUS)2550Troianescu Octav ...23301-040 ≣E41It
76Taimanov Mark E (...2386Polugaevsky Lev A...2585½-½41 ≣E41Ch URS
178Niklasson Christe...2350Kaiszauri Konstan...23501-041 ≣E47Ch Sweden
127Donner Jan-Hein (...2470Polugaevsky Lev A...2645½-½41 ≣E47It (cat.10)
29Kolvig Bent (DEN)2244Larsen Bent (DEN)2415½-½41 ≣E41Ch Denmark
56Portisch Lajos (HUN)2523Larsen Bent (DEN)2415½-½41 ≣E47Ch World (match) ...
83Portisch Lajos (HUN)2523Olafsson Fridrik ...24340-141 ≣E41It
17Udovcic Mijo (YUG)2460Karaklajic Nikola...2303½-½41 ≣E46Ch Yugoslavia
162Gligoric Svetozar...2595Milicevic Miodrag...22041-041 ≣E41?
161Balashov Yuri S (...2580Langeweg Kick (NED)24301-041 ≣A17It (cat.11)
170Polugaevsky Lev A...2630Karpov Anatoly (RUS)2700½-½41 ≣E47Ch World (match) ...
177Niklasson Christe...2350Fridh Anton (SWE)22551-041 ≣E41Ch Sweden
203Chow Albert (USA)2206Bass Leonid (USA)24100-141 ≣E41Tournament
220Juan Roldan Jose ...2304Aguera Naredo Jav...23451-041 ≣E47Ch Asturias (juni...
136Cassidy Raymond2200Takahashi Takayos...22050-141 ≣A13Olympiad
55Portisch Lajos (HUN)2523Larsen Bent (DEN)2415½-½41 ≣E47Ch World (match) ...
101Gheorghiu Florin ...2383Nicevski Risto (MKD)23101-042 ≣E41It
122Reshevsky Samuel ...2550Parma Bruno (SLO)2530½-½42 ≣E41It
49Reshevsky Samuel ...2430Larsen Bent (DEN)24151-042 ≣E47Olympiad
190Trapl Jindrich (CZE)2336Lechtynsky Jiri (...23750-142 ≣E47Ch Czechoslovakia
205Brinck-Claussen B...2375Fries-Nielsen Nie...23170-142 ≣E47Tournament
18Gligoric Svetozar...2447Karaklajic Nikola...23031-042 ≣E47It
9Boleslavsky Isaac...2560Smyslov Vassily (...2494½-½42 ≣E41Tournament
182Horst HKoegler K½-½42 ≣E47World Tournament ...
36Taimanov Mark E (...2386Larsen Bent (DEN)24150-142 ≣E47Memorial J.Capabl...
224Lukacs Peter (HUN)2404Lechtynsky Jiri (...23751-043 ≣E10Zt
5Nikolac Juraj (CRO)2438Karaklajic Nikola...23031-043 ≣E47Ch Yugoslavia
255Nguyen Chi-Minh (...2371Renet Olivier (FRA)24970-144 ≣E46Ch France (team) ...04 May 2005
169Polugaevsky Lev A...2630Karpov Anatoly (RUS)2700½-½44 ≣E47Ch World (match) ...
103Gligoric Svetozar...2447Reshevsky Samuel ...2430½-½44 ≣E47It
237Kargl Kurt (AUT)2300Lechtynsky Jiri (...24350-144 ≣E47It
226Thorsteins Karl (...2469Olafsson Helgi (ISL)2270½-½44 ≣E47Ch Iceland
185Koskela TaistoKaakinen Erkki0-144 ≣E46?
241Muench Klaus-Norb...2122Schuster Karsten ...22461-044 ≣E47Bayern Regionalli...
96Portisch Lajos (HUN)2523Polugaevsky Lev A...25850-144 ≣E47Izt
73Portisch Lajos (HUN)2523Haag Ervin (HUN)22841-044 ≣E41?