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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
373Gulko Boris F (USA)2565Gruenfeld Yehuda ...24801-033 ≣E47It (open)
398Hoszowski PiotrNowak Z1-037 ≣E47Ch Poland (corr.)
342Balashov Yuri S (...2540Rozentalis Eduard...24901-032 ≣E47Ch URS (1 liga) (...
1Benko Pal C (USA)2408Szabo Laszlo (GER)22001-046 ≣E47
231Koski PekkaRantanen Veikko1-023 ≣E41?
360RimpinevaKivisto Mikko (SIN)22771-026 ≣E41Ch Finland (corr.)
38Fuderer Andrija (...Rabar Braslav (YUG)0-139 ≣E47Ch Yugoslavia (ma...
68Golz Werner (GER)2410Rellstab Ludwig S...22650-124 ≣E40It
310Genovese ESleidinger GR1-040 ≣E46?
244Brinck-Claussen B...2263Fries-Nielsen Jen...23871-042 ≣E47Ch Denmark
47Furman Semen (RUS)2550Spassky Boris V (...25481-029 ≣E41Ch URS
24Reshevsky Samuel ...2430Euwe Max (NED)1-040 ≣E41Tournament (candi...
395Muir Andrew J (SCO)2360Prandstetter Edua...23750-149E47Cup European Club
196Karjarinta TapaniNurmi Toivo0-128 ≣E41?
362Garralda AGarcia Trobat Fra...22910-133E41It (open)
2Gligoric Svetozar...2447Rossolimo Nichola...24501-041 ≣E41It
541Babula Vlastimil ...2581Luther Thomas (GER)25751-033 ≣A40Bundesliga 2001/02
338Marks IanTenev Teno P0-139 ≣E47Europe Tournament...
233Uimonen Matti (FIN)2098Lampinen Juha1-032 ≣E47?
344Jedrzejowski Maci...2064Hanusek G1-037 ≣E47?
74Taimanov Mark E (...2386Antoshin Vladimir...22501-041 ≣E41Ch URS
436Sjoberg Mats (SWE)2450Kveinys Aloyzas (...25150-136 ≣E47It (open)
513Computer \Computer \1-047 ≣E47Tournament (compu...
119Borja MEuwe Max (NED)0-134 ≣E41Olympiad
287Gomez AmalioCorral Blanco Jua...24360-144 ≣E47Ch Asturias (team)
218Miettinen ReinoBjorkqvist Armas1-028 ≣E47corr.
357MrazCallens Alex22001-045 ≣E47Ch Europe (corr.)
493Buhmann Rainer (GER)2386Schreiner Richard...21921-049 ≣E47Bundesliga (2nd) ...
496Balogh JBoros Laszlo (HUN)19190-139 ≣E41Ch Hungary (team)...
267Endzelins Lucius ...Bouwmeester Hans ...23430-144 ≣E47Memorial Perfors ...
263Keene Raymond D (...2455Romanishin Oleg M...25600-140 ≣E41?
229Svensson Gert (SWE)2215Bengtsson Bo (SWE)23000-138 ≣E47Ch Sweden
455Bjornsson Bjorn F...2230Addison James1-029 ≣E21It \
249Kaarlonen KaarloMettinen Timo1-031 ≣E47?
295Letic Stevan (SRB)2104Franzen Jozef (SVK)23020-140 ≣E41corr.
13Kotov Alexander A...2500Matanovic Aleksan...24901-041 ≣E41Izt
215Donner Jan-Hein (...2495Knaak Rainer (GER)25151-038 ≣E47It \
192Hofmann GeorgeSchmid Hans-Peter...18990-142 ≣E41corr.
97Gligoric Svetozar...2447Pachman Ludek (GER)22781-042 ≣E47Izt
313Portisch Ferenc (...2405Rigo Janos (HUN)23190-141 ≣E47It (open)
40Schweber Samuel (...2348Spassky Boris V (...25480-135 ≣E41Ch World (juniors...
495Kovacs Istvan (HUN)2236Somogyi Istvan (HUN)22381-050 ≣E21Ch Hungary (team)...
472Kostin Sergei (RUS)2290Tunik Gennady (RUS)24500-147 ≣E41Cup Russia (open)
524Michenka Jozef (CZE)2323Holeksa Zdenek (CZE)21061-031 ≣E47It (open)
564Pavlovic Milos (SRB)2481Beliavsky Alexand...26600-124 ≣E47Ch Slovenia (team)
67Gligoric Svetozar...2447Stenborg Ake (SWE)22800-148 ≣E41Zt
9Germek MilanO'kelly De Galway...24600-134 ≣E41It
415Erwes Theo (GER)2104Pioch Thomas (GER)21651-043 ≣E47Hessenliga 1993/94
111Letelier Rene (CHI)2151Redolfi1-049 ≣E41?
352Cenni F1620Alagna S0-125 ≣E46corr.
364Manor Ilan (ISR)2476Horvath Jozsef M ...21040-139 ≣A46It \
397Lukacs Peter (HUN)2485Landenbergue Clau...23971-043 ≣A40It \
434Vaisser Anatoly (...2555Petursson Margeir...25651-026 ≣E47It (open)
303Kahn Manfred (GER)2139Staller Peter (GER)22441-043 ≣A40It
574Garcia Gata Jorge...2021Dimitrov Vladimir...24340-126 ≣E47Memorial Narciso ...
341Dive Russell John...2339Martin Benjamin (...23751-050 ≣E41Ch New Zealand
28Gligoric Svetozar...2447Janosevic Dragolj...23301-032 ≣E41It
307Gil Capape Javier...2444Janssen Han (NED)23280-147 ≣E47It \
86Polo Gomez Vicent...2212Shocron Ruben (USA)22590-142 ≣A17?
41Somers StafJorgensen Vagn Rauhe0-139 ≣E41Ch World (juniors...
515Albarran Gustavo ...2255Vazquez Maximilia...21311-050 ≣E47Ch Superior Torre...
377Allacher Erwin (AUT)2124Wutte H20101-026 ≣E47Staatsliga B
361Felice AAlagna S1-032 ≣E47corr.
383Michenka Jozef (CZE)2346Prandstetter Edua...24100-133 ≣E47Ch Czechoslovakia...
444Tikkanen Kari (FIN)2265Osterman Georg (FIN)22811-048 ≣E47?
200Cardoso Carlos Al...2207Sharif Mehrshad (...23300-141 ≣E41Olympiad
148Kozma Julius (CSR)2380Damjanovic Mato (...23031-038 ≣E47It
483Kveinys Aloyzas (...2545Nikcevic Nebojsa ...24801-035 ≣A13It (open)
539Niemela Antti (FIN)2256Koskela Niina (FIN)23101-045 ≣E47Ch Finland (team)...
102Spassky Boris V (...2548Ghitescu Theodor ...23841-034 ≣E21Ch World (students)
57Bisguier Arthur B...2237Turner Abe22001-046 ≣E41Memorial Rosenwald
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
91Johannsson Ingi R...2410Safvat Y1-038 ≣A15Olympiad
54Enevoldsen Jens (...2350Larsen Bent (DEN)24150-129 ≣E41It
204Pulieri PaoloMicka0-132 ≣E47Ch Europe (corr.)
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)
489Potapov Alexander...2241Filippov Valerij ...25951-045 ≣E41Cup Russia
174Podgaets Mikhail ...2465Schoeneberg Manfr...22791-033 ≣E47Ch World (students)
100Bobotsov Milko G ...2405Kadrev Zdravko1-048A15Ch Bulgaria
117Schweber Samuel (...2348Reinhardt Enrique...1-046 ≣E47Ch Argentina (pla...
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...
96Prokhorovich Taras ERovner Dmitry Osi...1-048 ≣E47Tournament
279Easton Alex (SCO)2147Miles Jana0-135 ≣E47It (open)