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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
60Donner Jan-Hein (...2430O'kelly De Galway...2460½-½20 ≣E41It
78Reshevsky Samuel ...2430Burger Karl (USA)23101-026 ≣E47Ch USA
77Reshevsky Samuel ...2430Damjanovic Mato (...23031-046 ≣E41It
70Donner Jan-Hein (...2430Parma Bruno (SLO)2480½-½35 ≣E41Memorial J.Capabl...
87Reshevsky Samuel ...2430Szabo Laszlo (HUN)19031-030 ≣E41It
105Donner Jan-Hein (...2430Wade Robert G (ENG)21481-045 ≣E41Match \
3Reshevsky Samuel ...2430Fine Reuben (USA)½-½27 ≣E40Ch USA
61Donner Jan-Hein (...2430Wade Robert G (ENG)21481-028 ≣E41It
92Unzicker Wolfgang...2433Olafsson Fridrik ...24341-036 ≣E41It
207Portisch Ferenc (...2435Lechtynsky Jiri (...24751-024 ≣E47Ch Czechoslovakia...
19Barcza Gedeon (HUN)2435Dely Peter (HUN)23911-063 ≣E47Memorial Szikra
71Panno Oscar (ARG)2438Parma Bruno (SLO)2480½-½17 ≣E41Memorial J.Capabl...
5Nikolac Juraj (CRO)2438Karaklajic Nikola...23031-043 ≣E47Ch Yugoslavia
69Panno Oscar (ARG)2438Bronstein Luis (ARG)23491-046 ≣E47Ch Argentina
52Toran Albero Roma...2445Bouwmeester Hans ...2343½-½28 ≣E47Olympiad
8Najdorf Miguel (POL)2445Reshevsky Samuel ...2430½-½26 ≣E41Match
6Najdorf Miguel (POL)2445Reshevsky Samuel ...2430½-½37 ≣E46Match
7Najdorf Miguel (POL)2445Reshevsky Samuel ...2430½-½46 ≣E47Match
212Portisch Ferenc (...2445Lechtynsky Jiri (...24701-035 ≣E47It (cat.7)
43Gligoric Svetozar...2447Tal Mikhail N (LAT)2520½-½27 ≣E47Ch World (match) ...
40Gligoric Svetozar...2447Larsen Bent (DEN)2415½-½14 ≣E41Izt
58Gligoric Svetozar...2447Gheorghiu Florin ...2383½-½59 ≣E47It
95Gligoric Svetozar...2447Polugaevsky Lev A...2585½-½19 ≣E47Izt
34Gligoric Svetozar...2447O'kelly De Galway...2460½-½19 ≣E41It
33Gligoric Svetozar...2447Larsen Bent (DEN)24151-047 ≣E41It
18Gligoric Svetozar...2447Karaklajic Nikola...23031-042 ≣E47It
103Gligoric Svetozar...2447Reshevsky Samuel ...2430½-½44 ≣E47It
102Gligoric Svetozar...2447Barczay Laszlo (HUN)2381½-½27 ≣E47It
16Gligoric Svetozar...2447Karaklajic Nikola...2303½-½28 ≣E47Ch Yugoslavia
85Gligoric Svetozar...2447Polugaevsky Lev A...25850-1108 ≣E47It \
59Gligoric Svetozar...2447Ilievski Borce (MKD)22251-052 ≣E47It
75Gligoric Svetozar...2447Unzicker Wolfgang...2433½-½26 ≣E47It
210Azmaiparashvili Z...2455Andrianov Nikolai...24001-040 ≣E41Ch URS (young mas...
144Cvetkovic Srdjan ...2460Ivkov Borislav (SRB)2520½-½20 ≣E47Ch Yugoslavia
195Lukacs Peter (HUN)2460Lengyel Levente (...2293½-½18 ≣E41It
17Udovcic Mijo (YUG)2460Karaklajic Nikola...2303½-½41 ≣E46Ch Yugoslavia
146Helmers Knut J (NOR)2465Rorvall Goran (SWE)22420-127 ≣E41It (open) (juniors)28 Dec 1972
159Podgaets Mikhail ...2465Osnos Viatcheslav...25101-040 ≣E47Ch URS (1 liga)
226Thorsteins Karl (...2469Olafsson Helgi (ISL)2270½-½44 ≣E47Ch Iceland
154Calvo Minguez Ric...2470Pomar Salamanca A...2435½-½30 ≣E47It
145Mariotti Sergio (...2470Tatai Stefano (ITA)2460½-½21 ≣E41Match
127Donner Jan-Hein (...2470Polugaevsky Lev A...2645½-½41 ≣E47It (cat.10)
174Farago Ivan (HUN)2475Lechtynsky Jiri (...23900-139 ≣E47?
188Donner Jan-Hein (...2475Amos Bruce M (CAN)23550-148 ≣E47Olympiad
197Mihalcisin Adrian...2480Kochyev Alexander...25450-140 ≣E47Ch URS (1 liga)
142Timman Jan H (NED)2480Langeweg Kick (NED)2425½-½47 ≣E41It (a)
51Sanguinetti Raul ...2485Johansson Martin ...2430½-½39 ≣E41Olympiad
131Podgaets Mikhail ...2485Yuferov Sergey N ...24121-039 ≣E47Memorial A.Sokolsky
132Podgaets Mikhail ...2485Anikaev Yuri N (RUS)24751-049 ≣E41Ch URS (young mas...
45Farago Ivan (HUN)2488Haag Ervin (HUN)2284½-½17 ≣E41Ch Hungary
89Addison Wiliam G ...2490O'kelly De Galway...2460½-½20 ≣E41It
90Addison Wiliam G ...2490Parma Bruno (SLO)24800-134 ≣E41It
206Vladimirov Evgeny...2495Grigorian Karen (...2415½-½14 ≣E41It
201Knaak Rainer (GER)2495Lechtynsky Jiri (...2455½-½30 ≣E47It (cat.8)
110Donner Jan-Hein (...2500Parma Bruno (SLO)2530½-½23 ≣E41Ch BRD
109Donner Jan-Hein (...2500Matanovic Aleksan...2520½-½16 ≣E41Ch BRD
120Byrne Robert E (USA)2510Parma Bruno (SLO)2530½-½47 ≣E41Memorial A.Alekhine
213Garcia Palermo Ca...2515Armas Jorge (CUB)23301-028 ≣E47It
180Knaak Rainer (GER)2515Kostro Jerzy (POL)23850-149 ≣E47Match \
215Garcia Palermo Ca...2515Garcia Martinez S...24301-036 ≣E47It
175Knaak Rainer (GER)2515Gruenberg Hans-Ul...24021-048 ≣E47Ch DDR
57Portisch Lajos (HUN)2523Larsen Bent (DEN)24151-057 ≣E47Ch World (match) ...
64Portisch Lajos (HUN)2523Karaklajic Nikola...23031-048 ≣E41It \
83Portisch Lajos (HUN)2523Olafsson Fridrik ...24340-141 ≣E41It
73Portisch Lajos (HUN)2523Haag Ervin (HUN)22841-044 ≣E41?
82Portisch Lajos (HUN)2523Benko Pal C (USA)2408½-½35 ≣E47It
56Portisch Lajos (HUN)2523Larsen Bent (DEN)2415½-½41 ≣E47Ch World (match) ...
74Portisch Lajos (HUN)2523Polugaevsky Lev A...2585½-½31 ≣E41?
96Portisch Lajos (HUN)2523Polugaevsky Lev A...25850-144 ≣E47Izt
66Portisch Lajos (HUN)2523Langeweg Kick (NED)23091-024 ≣E41It \
55Portisch Lajos (HUN)2523Larsen Bent (DEN)2415½-½41 ≣E47Ch World (match) ...
164Timman Jan H (NED)2540Tal Mikhail N (LAT)2635½-½48 ≣E47It
124Furman Semen (RUS)2550Wade Robert G (ENG)23651-067 ≣E41It
11Furman Semen (RUS)2550Troianescu Octav ...23301-040 ≣E41It
254Lugovoi Aleksei (...2550Palo Davor (DEN)2526½-½16 ≣E47It (cat.10)28 Sep 2004
122Reshevsky Samuel ...2550Parma Bruno (SLO)2530½-½42 ≣E41It
94Furman Semen (RUS)2550Gipslis Aivars (LAT)2429½-½19 ≣E41Tournament Armed ...
125Evans Larry M (USA)2550Browne Walter S (...25001-050 ≣E47It (open)
80Korchnoi Viktor (...2556Najdorf Miguel (POL)2445½-½48 ≣E41It
9Boleslavsky Isaac...2560Smyslov Vassily (...2494½-½42 ≣E41Tournament
121Tukmakov Vladimir...2565Gheorghiu Florin ...2530½-½38 ≣E41Memorial A.Alekhine
133Panno Oscar (ARG)2570Vasquez Julio E (...2265½-½22 ≣E47Zt
250Jussupow Artur (GER)2583Lobron Eric (GER)25091-028 ≣E47Cup Rilton
160Taimanov Mark E (...2585Parma Bruno (SLO)2500½-½27 ≣E41Match \
157Taimanov Mark E (...2585Karpov Anatoly (RUS)2660½-½20 ≣E41Ch URS
162Gligoric Svetozar...2595Milicevic Miodrag...22041-041 ≣E41?
153Gligoric Svetozar...2595Matanovic Aleksan...2490½-½18 ≣E41Memorial M.Vidmar
116Gligoric Svetozar...2600Wade Robert G (ENG)23651-024 ≣E47It
126Gligoric Svetozar...2600Langeweg Kick (NED)2425½-½22 ≣E47It (a)
117Gligoric Svetozar...2600Karpov Anatoly (RUS)2540½-½24 ≣E47It (cat.10)
118Gligoric Svetozar...2600Wade Robert G (ENG)23651-024 ≣E47?
193Huebner Robert Dr...2600Andersson Ulf (SWE)25651-056 ≣E41It (cat.14)
258Potkin Vladimir (...2619Corrales Fidel (CUB)26021-054 ≣E10Memorial J.Capabl...10 Jun 2009
168Polugaevsky Lev A...2630Karpov Anatoly (RUS)2700½-½21 ≣E47Ch World (match) ...
167Polugaevsky Lev A...2630Karpov Anatoly (RUS)2700½-½32 ≣E47Ch World (match) ...
107Portisch Lajos (HUN)2630Browne Walter S (...25001-039 ≣E41It \
170Polugaevsky Lev A...2630Karpov Anatoly (RUS)2700½-½41 ≣E47Ch World (match) ...
166Polugaevsky Lev A...2630Olafsson Fridrik ...2550½-½23 ≣E41It
169Polugaevsky Lev A...2630Karpov Anatoly (RUS)2700½-½44 ≣E47Ch World (match) ...
108Portisch Lajos (HUN)2630Smyslov Vassily (...2620½-½49 ≣E47It \