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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
234Jurka Miroslav (CZE)2335Lechtynsky Jiri (...2435½-½21 ≣A05It (open)
136Cassidy Raymond2200Takahashi Takayos...22050-141 ≣A13Olympiad
147Hernandez Gustavo SrFrey Kenneth (MEX)23840-172 ≣A17It
242Wolfsteiner Helmu...2315Schuster Karsten ...2246½-½25 ≣A17Bayern Regionalli...
130Portisch Lajos (HUN)2640Pomar Salamanca A...2460½-½32 ≣A17It (cat.8)
119Taimanov Mark E (...2600Tukmakov Vladimir...2565½-½33 ≣A17Ch URS
12Ilivitzki Georgi ...2380Bisguier Arthur B...2237½-½31 ≣A17Izt
123Bobotsov Milko G ...2485Lengyel Levente (...2485½-½21 ≣A17It
179Lipnowski Irwin (...2260Donoso Velasco Pe...23600-134 ≣A17It
93Emma Jaime (ARG)2395Anelli Antonio (ARG)21451-051 ≣A17It (open)
135Bisguier Arthur B...2430Medina-Garcia Ant...2380½-½27 ≣A17Olympiad
27Bolbochan Julio (...2440Bisguier Arthur B...2237½-½34 ≣A17Izt
88Smyslov Vassily (...2494Najdorf Miguel (POL)2445½-½21 ≣A17It
161Balashov Yuri S (...2580Langeweg Kick (NED)24301-041 ≣A17It (cat.11)
23Kollberg Lothar (...2237Troeger Rainer (GER)21700-137 ≣A40It (b)02 Jan 1957
171Greben KVan Der Raaf Erik...21561-033 ≣A40Ch Netherlands (j...
31Lehmann Heinz G (...2285Ivkov Borislav (SRB)24160-146 ≣A40Memorial J.Capabl...
140Vasquez Julio E (...2265Wade Robert G (ENG)2375½-½24 ≣A46Olympiad
137Ogaard Leif (NOR)2340Wade Robert G (ENG)23750-132 ≣E10Olympiad
224Lukacs Peter (HUN)2404Lechtynsky Jiri (...23751-043 ≣E10Zt
158Van Scheltinga Th...2330Langeweg Kick (NED)2430½-½27 ≣E10Ch Netherlands (t...
258Potkin Vladimir (...2619Corrales Fidel (CUB)26021-054 ≣E10Memorial J.Capabl...10 Jun 2009
38Damjanovic Mato (...2303Dely Peter (HUN)2391½-½62 ≣E11It
63Ivkov Borislav (SRB)2416Wade Robert G (ENG)21481-059 ≣E21It
62Lehmann Heinz G (...2285Wade Robert G (ENG)21481-063 ≣E21It
39Bogdanovic Rajko ...2308Damjanovic Mato (...2303½-½17 ≣E21Memorial M.Chigorin
42Sherwin James T (...2246Wood Norman W1-037 ≣E21It (open)
138Takahashi Takayos...2205Wade Robert G (ENG)23751-050 ≣E21Olympiad
249Telea Stefan (ROM)2155Seder Nicolae (ROM)2166½-½72 ≣E21It (open)
218Sarwinski Mirosla...2313Luczak Andrzej (POL)23701-032 ≣E21Ch Poland (team)
200Sobek Jaroslav (CZE)2267Lechtynsky Jiri (...24500-156 ≣E21It
238Becker Christoph ...2156Freise Friedhelm ...21380-138 ≣E21It (open)
229Fabris Alberto (ITA)2230Iotti Pierluigi (...22931-062 ≣E21It (open)
21KrznaricSobel Robert1-031 ≣E40It (open)
3Reshevsky Samuel ...2430Fine Reuben (USA)½-½27 ≣E40Ch USA
252Bernadsky VitalyBortnik Alexandr ...23600-159 ≣E40Ch Ukraine (junio...04 Mar 2004
166Polugaevsky Lev A...2630Olafsson Fridrik ...2550½-½23 ≣E41It
29Kolvig Bent (DEN)2244Larsen Bent (DEN)2415½-½41 ≣E41Ch Denmark
61Donner Jan-Hein (...2430Wade Robert G (ENG)21481-028 ≣E41It
98Rodriguez Orestes...2403Pomar Salamanca A...2345½-½38 ≣E41Olympiad
153Gligoric Svetozar...2595Matanovic Aleksan...2490½-½18 ≣E41Memorial M.Vidmar
157Taimanov Mark E (...2585Karpov Anatoly (RUS)2660½-½20 ≣E41Ch URS
173Visier Segovia Fe...2345Parma Bruno (SLO)2510½-½24 ≣E41Olympiad
76Taimanov Mark E (...2386Polugaevsky Lev A...2585½-½41 ≣E41Ch URS
145Mariotti Sergio (...2470Tatai Stefano (ITA)2460½-½21 ≣E41Match
160Taimanov Mark E (...2585Parma Bruno (SLO)2500½-½27 ≣E41Match \
90Addison Wiliam G ...2490Parma Bruno (SLO)24800-134 ≣E41It
141Wade Robert G (ENG)2375Parma Bruno (SLO)2510½-½20 ≣E41It (cat.10)
11Furman Semen (RUS)2550Troianescu Octav ...23301-040 ≣E41It
10Rabar Braslav (YUG)Ivkov Borislav (SRB)2416½-½21 ≣E41It
79Pomar Salamanca A...2345O'kelly De Galway...2460½-½47 ≣E41It
142Timman Jan H (NED)2480Langeweg Kick (NED)2425½-½47 ≣E41It (a)
139Vasquez Julio E (...2265Gonda Gentaro (JPN)20781-025 ≣E41Olympiad
146Helmers Knut J (NOR)2465Rorvall Goran (SWE)22420-127 ≣E41It (open) (juniors)28 Dec 1972
148Yepez Olavo (ECU)2305Gonzales Eliseo (...2265½-½45 ≣E41It
28Letelier Rene (CHI)2151Schweber Samuel (...23480-127 ≣E41?
176Deze Anton (YUG)2375Damjanovic Mato (...2460½-½18 ≣E41It
25Kluger Gyula (HUN)2250Bisguier Arthur B...2237½-½50 ≣E41Memorial G.Maroczy
132Podgaets Mikhail ...2485Anikaev Yuri N (RUS)24751-049 ≣E41Ch URS (young mas...
80Korchnoi Viktor (...2556Najdorf Miguel (POL)2445½-½48 ≣E41It
24Cruz RaulSchweber Samuel (...23480-135 ≣E41Ch Argentina
33Gligoric Svetozar...2447Larsen Bent (DEN)24151-047 ≣E41It
124Furman Semen (RUS)2550Wade Robert G (ENG)23651-067 ≣E41It
73Portisch Lajos (HUN)2523Haag Ervin (HUN)22841-044 ≣E41?
71Panno Oscar (ARG)2438Parma Bruno (SLO)2480½-½17 ≣E41Memorial J.Capabl...
97Taimanov Mark E (...2386Mecking Henrique ...25780-173 ≣E41Izt
122Reshevsky Samuel ...2550Parma Bruno (SLO)2530½-½42 ≣E41It
66Portisch Lajos (HUN)2523Langeweg Kick (NED)23091-024 ≣E41It \
120Byrne Robert E (USA)2510Parma Bruno (SLO)2530½-½47 ≣E41Memorial A.Alekhine
99Sirkia Mauri O (FIN)2350Langeweg Kick (NED)23090-135 ≣E41Olympiad
60Donner Jan-Hein (...2430O'kelly De Galway...2460½-½20 ≣E41It
72Pomar Salamanca A...2345Parma Bruno (SLO)24800-162 ≣E41Memorial J.Capabl...
115Bjerre Troels (DEN)2320Saren Ilkka J (FIN)21841-034 ≣E41Tournament (team)
162Gligoric Svetozar...2595Milicevic Miodrag...22041-041 ≣E41?
22Thibaut Georges P...Skoeld Kristian (...2340½-½74 ≣E41Olympiad20 Sep 1956
111Ludgate Alan (IRL)2265Wade Robert G (ENG)23651-047 ≣E41Ch Great Britain
53Visier Segovia Fe...2233Kristinsson Jon (...2290½-½33 ≣E41Olympiad
51Sanguinetti Raul ...2485Johansson Martin ...2430½-½39 ≣E41Olympiad
37Haygarth Michael ...2375Golombek Harry (ENG)2320½-½13 ≣E41Ch Great Britain
112Ludgate Alan (IRL)2265Wright Daniel (ENG)2235½-½25 ≣E41Ch Great Britain
64Portisch Lajos (HUN)2523Karaklajic Nikola...23031-048 ≣E41It \
65LenstraLangeweg0-126 ≣E41It \
107Portisch Lajos (HUN)2630Browne Walter S (...25001-039 ≣E41It \
48Ojanen Kaarle S (...2335Johansson Martin ...24301-036 ≣E41Olympiad
121Tukmakov Vladimir...2565Gheorghiu Florin ...2530½-½38 ≣E41Memorial A.Alekhine
70Donner Jan-Hein (...2430Parma Bruno (SLO)2480½-½35 ≣E41Memorial J.Capabl...
8Najdorf Miguel (POL)2445Reshevsky Samuel ...2430½-½26 ≣E41Match
109Donner Jan-Hein (...2500Matanovic Aleksan...2520½-½16 ≣E41Ch BRD
46Jimenez Eleazar (...2365Johannsson Ingi R...24100-139 ≣E41Olympiad
77Reshevsky Samuel ...2430Damjanovic Mato (...23031-046 ≣E41It
45Farago Ivan (HUN)2488Haag Ervin (HUN)2284½-½17 ≣E41Ch Hungary
74Portisch Lajos (HUN)2523Polugaevsky Lev A...2585½-½31 ≣E41?
9Boleslavsky Isaac...2560Smyslov Vassily (...2494½-½42 ≣E41Tournament
89Addison Wiliam G ...2490O'kelly De Galway...2460½-½20 ≣E41It
110Donner Jan-Hein (...2500Parma Bruno (SLO)2530½-½23 ≣E41Ch BRD
86Janosevic Dragolj...2330Zuckerman Bernard...24551-065 ≣E41It
87Reshevsky Samuel ...2430Szabo Laszlo (HUN)19031-030 ≣E41It
113Farago Ivan (HUN)2410Polgar Istvan (HUN)2380½-½25 ≣E41Ch Hungary
94Furman Semen (RUS)2550Gipslis Aivars (LAT)2429½-½19 ≣E41Tournament Armed ...
101Gheorghiu Florin ...2383Nicevski Risto (MKD)23101-042 ≣E41It