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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
424Weindl Alfred (GER)2350Joachim Sven (GER)23801-043 ≣D31It (open)
469Computer \Luther Thomas (GER)25250-146 ≣A40It (cat.7)
468Pieniazek Artur (...2415Luther Thomas (GER)25250-136 ≣A40It (open) (a)
55Dittmann SieghardSterner Olaf1-048 ≣E47It
30Szabo Laszlo (HUN)1903Pogats Jozsef (HUN)22301-034 ≣E41Ch Hungary
48Vladimirov Boris ...2340Lisitsyn Georgy (...0-133 ≣E41Ch URS (1/2 final)
46Furman Semen (RUS)2550Kotov Alexander A...25001-037 ≣E41Ch URS
57Bisguier Arthur B...2237Turner Abe22001-046 ≣E41Memorial Rosenwald
91Johannsson Ingi R...2410Safvat Y1-038 ≣A15Olympiad
54Enevoldsen Jens (...2350Larsen Bent (DEN)24150-129 ≣E41It
92Ojanen Kaarle S (...2335Euwe Max (NED)0-131 ≣E41Olympiad
25Taimanov Mark E (...2386Euwe Max (NED)0-141 ≣E41Tournament (candi...
212Reshevsky Samuel ...2560Tan Lian-Ann (SIN)23701-043 ≣E47Izt
17Najdorf Miguel (POL)2445Reshevsky Samuel ...24300-135 ≣E41Match
76Dittmann SieghardOlafsson Fridrik ...24340-140 ≣E41Olympiad (student...
37Milic Borislav (YUG)Matanovic Aleksan...24900-140 ≣E41Match
369Norri Joose (FIN)2291Hall Jesper (SWE)24931-042 ≣E47It (open)
174Podgaets Mikhail ...2465Schoeneberg Manfr...22791-033 ≣E47Ch World (students)
267Endzelins Lucius ...Bouwmeester Hans ...23430-144 ≣E47Memorial Perfors ...
153Emma Jaime (ARG)2395Polo Gomez Vicent...22120-144 ≣E41Ch Buenos Aires (...
142Lampela OlaviEkblom PE (FIN)1-035 ≣A40?
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
132Trmal Jaroslav (CZE)2184Fabian Jaroslav (...21921-038 ≣E47Ch Czechoslovakia
350Kozma Julius (CSR)2380Beran Josef (CZE)22700-146 ≣E47Ch Czechoslovakia...
444Tikkanen Kari (FIN)2265Osterman Georg (FIN)22811-048 ≣E47?
564Pavlovic Milos (SRB)2481Beliavsky Alexand...26600-124 ≣E47Ch Slovenia (team)
233Uimonen Matti (FIN)2098Lampinen Juha1-032 ≣E47?
111Letelier Rene (CHI)2151Redolfi1-049 ≣E41?
249Kaarlonen KaarloMettinen Timo1-031 ≣E47?
196Karjarinta TapaniNurmi Toivo0-128 ≣E41?
352Cenni F1620Alagna S0-125 ≣E46corr.
541Babula Vlastimil ...2581Luther Thomas (GER)25751-033 ≣A40Bundesliga 2001/02
229Svensson Gert (SWE)2215Bengtsson Bo (SWE)23000-138 ≣E47Ch Sweden
287Gomez AmalioCorral Blanco Jua...24360-144 ≣E47Ch Asturias (team)
496Balogh JBoros Laszlo (HUN)19190-139 ≣E41Ch Hungary (team)...
357MrazCallens Alex22001-045 ≣E47Ch Europe (corr.)
455Bjornsson Bjorn F...2230Addison James1-029 ≣E21It \
218Miettinen ReinoBjorkqvist Armas1-028 ≣E47corr.
344Jedrzejowski Maci...2064Hanusek G1-037 ≣E47?
493Buhmann Rainer (GER)2386Schreiner Richard...21921-049 ≣E47Bundesliga (2nd) ...
310Genovese ESleidinger GR1-040 ≣E46?
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)
109Geller Efim P (RUS)2455Levin M1-044 ≣A15Ch Ukraine
74Taimanov Mark E (...2386Antoshin Vladimir...22501-041 ≣E41Ch URS
47Furman Semen (RUS)2550Spassky Boris V (...25481-029 ≣E41Ch URS
24Reshevsky Samuel ...2430Euwe Max (NED)1-040 ≣E41Tournament (candi...
93Pachman Ludek (GER)2278Sterner Olaf1-043 ≣E47Olympiad
362Garralda AGarcia Trobat Fra...22910-133E41It (open)
2Gligoric Svetozar...2447Rossolimo Nichola...24501-041 ≣E41It
38Fuderer Andrija (...Rabar Braslav (YUG)0-139 ≣E47Ch Yugoslavia (ma...
513Computer \Computer \1-047 ≣E47Tournament (compu...
68Golz Werner (GER)2410Rellstab Ludwig S...22650-124 ≣E40It
244Brinck-Claussen B...2263Fries-Nielsen Jen...23871-042 ≣E47Ch Denmark
360RimpinevaKivisto Mikko (SIN)22771-026 ≣E41Ch Finland (corr.)
342Balashov Yuri S (...2540Rozentalis Eduard...24901-032 ≣E47Ch URS (1 liga) (...
231Koski PekkaRantanen Veikko1-023 ≣E41?
1Benko Pal C (USA)2408Szabo Laszlo (GER)22001-046 ≣E47
373Gulko Boris F (USA)2565Gruenfeld Yehuda ...24801-033 ≣E47It (open)
398Hoszowski PiotrNowak Z1-037 ≣E47Ch Poland (corr.)
279Easton Alex (SCO)2147Miles Jana0-135 ≣E47It (open)
285Hoi Carsten (DEN)2390Norgaard Jesper (...24081-034 ≣E47Tournament
99Sokolov Vladimir ...2310Lokvenc Josef (AUT)1-032 ≣E47It
27Cuellar Gacharna ...2280Vesterinen J1-043 ≣E41Olympiad
83Kluger Gyula (HUN)2250Ivkov Borislav (SRB)24160-130 ≣E47Match \
337Michenka Jozef (CZE)2346Kazek Krzysztof (...20001-026 ≣E41It
10Bronstein David I...2432Porath Yosef (ISR)23401-049 ≣E47Olympiad
16Idigoras GregorioMarini Luis0-143 ≣E41Ch Argentina
18Panno Oscar (ARG)2438Ivkov Borislav (SRB)24161-024 ≣E10Ch World (juniors)
6Nikolac Juraj (CRO)2438Matanovic Aleksan...24900-128 ≣E41Ch Yugoslavia
22Averbakh Yuri L (...2445Euwe Max (NED)1-045 ≣E41Tournament (candi...
144Reshevsky Samuel ...2430Porath Yosef (ISR)23401-034 ≣E41Izt
44Idigoras GregorioSanguinetti J0-145 ≣E41Ch Argentina
88Angos AlexanderSafvat Y0-121 ≣E10Olympiad
77SehlstedtBlatny Frantisek ...21120-141 ≣E41Olympiad (student...
49Kozma Julius (CSR)2380Vesely Jaromir (CZE)19791-042 ≣E21Ch Czechoslovakia
14Tolush Alexander ...Troianescu Octav ...23301-037 ≣E41It
396Yepez Olavo (ECU)2305Narciso Dublan Ma...23000-123 ≣E40It (open)
442Karp Serge (LUX)2095Pytel Krzysztof (...24250-122 ≣E10It (open)
276Beutler MKuhn0-128 ≣E47corr.
277Loschi EQuattrocchi Gaetano1-022E46?
3Wood GabrielMitchell Graham1-028 ≣E41Ch World (corr.)
4Martin Pedro (ARG)2021Bolbochan Julio (...24400-132 ≣E47Zt
5Martin Pedro (ARG)2021Souza Mendes Joao1-034 ≣E41Zt
7Vukovic Sava (YUG)Rabar Braslav (YUG)0-123 ≣E41Ch Yugoslavia
8Vukovic Sava (YUG)Rabar Braslav (YUG)0-123 ≣E41Ch Yugoslavia
11Furman Semen (RUS)2550Kondratiev Pavel ...1-033 ≣E47Ch URS (1/2 final)
12Moisieev Oleg L (...2385Byvshev Vasily Mi...1-034 ≣E41Ch URS
15Kluger Gyula (HUN)2250Florian Tibor (HUN)1-038 ≣E41Ch Hungary
19Donner Jan-Hein (...2430Kupper Josef (SUI)23741-035 ≣A40It
20Moisieev Oleg L (...2385Stoeckl Ernst (AUT)21741-038 ≣E46Match \
128Ciesla SKowalczyk R1-024 ≣E47Ch Poland (corr.)
23Geller Efim P (RUS)2455Kotov Alexander A...25000-142 ≣E41Tournament (candi...
26Bronstein David I...2432Horberg Bengt-Eric1-033 ≣E41Olympiad
29Rabar Braslav (YUG)Janosevic Dragolj...23300-147 ≣E41It
31PasmanTal Mikhail N (LAT)25200-133 ≣E47Ch Latvia
32Najdorf Miguel (POL)2445Salas Romo Julio ...1-031 ≣E47It