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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
263Keene Raymond D (...2455Romanishin Oleg M...25600-140 ≣E41?
119Borja MEuwe Max (NED)0-134 ≣E41Olympiad
310Genovese ESleidinger GR1-040 ≣E46?
287Gomez AmalioCorral Blanco Jua...24360-144 ≣E47Ch Asturias (team)
462Usachyi Vladimir ...2245Baklan Vladimir (...25700-130 ≣E41It (open)
218Miettinen ReinoBjorkqvist Armas1-028 ≣E47corr.
229Svensson Gert (SWE)2215Bengtsson Bo (SWE)23000-138 ≣E47Ch Sweden
102Spassky Boris V (...2548Ghitescu Theodor ...23841-034 ≣E21Ch World (students)
196Karjarinta TapaniNurmi Toivo0-128 ≣E41?
249Kaarlonen KaarloMettinen Timo1-031 ≣E47?
559Golovchenko Gleb ...2260Vlasov Egor (RUS)22510-136 ≣E41Ch City (juniors)...
17Najdorf Miguel (POL)2445Reshevsky Samuel ...24300-135 ≣E41Match
76Dittmann SieghardOlafsson Fridrik ...24340-140 ≣E41Olympiad (student...
455Bjornsson Bjorn F...2230Addison James1-029 ≣E21It \
352Cenni F1620Alagna S0-125 ≣E46corr.
564Pavlovic Milos (SRB)2481Beliavsky Alexand...26600-124 ≣E47Ch Slovenia (team)
241Kuuskmaa EndelSarosi Zoltan (HUN)22970-144 ≣E47Olympiad (corr.)
443Sasata Robert (CAN)2279Ferguson Bobby (USA)22320-134 ≣E21It (open)
132Trmal Jaroslav (CZE)2184Fabian Jaroslav (...21921-038 ≣E47Ch Czechoslovakia
350Kozma Julius (CSR)2380Beran Josef (CZE)22700-146 ≣E47Ch Czechoslovakia...
174Podgaets Mikhail ...2465Schoeneberg Manfr...22791-033 ≣E47Ch World (students)
48Vladimirov Boris ...2340Lisitsyn Georgy (...0-133 ≣E41Ch URS (1/2 final)
25Taimanov Mark E (...2386Euwe Max (NED)0-141 ≣E41Tournament (candi...
55Dittmann SieghardSterner Olaf1-048 ≣E47It
161Bachtiar Arovah (...2285Donner Jan-Hein (...24300-144 ≣E41It \
212Reshevsky Samuel ...2560Tan Lian-Ann (SIN)23701-043 ≣E47Izt
495Kovacs Istvan (HUN)2236Somogyi Istvan (HUN)22381-050 ≣E21Ch Hungary (team)...
490Sturua Zurab (GEO)2602Tiviakov Sergei (...26111-045 ≣E47Cup European Club...
369Norri Joose (FIN)2291Hall Jesper (SWE)24931-042 ≣E47It (open)
233Uimonen Matti (FIN)2098Lampinen Juha1-032 ≣E47?
219Garcia Martinez S...2400Debarnot Roberto ...24201-031 ≣E47It
111Letelier Rene (CHI)2151Redolfi1-049 ≣E41?
105O'kelly De Galway...2460Secchi Ernesto1-042 ≣E41Ch World (corr.)
37Milic Borislav (YUG)Matanovic Aleksan...24900-140 ≣E41Match
493Buhmann Rainer (GER)2386Schreiner Richard...21921-049 ≣E47Bundesliga (2nd) ...
444Tikkanen Kari (FIN)2265Osterman Georg (FIN)22811-048 ≣E47?
395Muir Andrew J (SCO)2360Prandstetter Edua...23750-149E47Cup European Club
40Schweber Samuel (...2348Spassky Boris V (...25480-135 ≣E41Ch World (juniors...
169Schweber Samuel (...2348Mecking Henrique ...25781-039 ≣E41Tournament
357MrazCallens Alex22001-045 ≣E47Ch Europe (corr.)
216Knaak Rainer (GER)2515Garcia Gonzales G...24501-042 ≣E41Memorial J.Capabl...
344Jedrzejowski Maci...2064Hanusek G1-037 ≣E47?
54Enevoldsen Jens (...2350Larsen Bent (DEN)24150-129 ≣E41It
46Furman Semen (RUS)2550Kotov Alexander A...25001-037 ≣E41Ch URS
41Somers StafJorgensen Vagn Rauhe0-139 ≣E41Ch World (juniors...
28Gligoric Svetozar...2447Janosevic Dragolj...23301-032 ≣E41It
120Thorbergsson Frey...2340Humerez C0-132 ≣E41Olympiad
14Tolush Alexander ...Troianescu Octav ...23301-037 ≣E41It
38Fuderer Andrija (...Rabar Braslav (YUG)0-139 ≣E47Ch Yugoslavia (ma...
186Bronstein Luis (ARG)2349Schweber Samuel (...23480-138 ≣E41It
536Johannessen Leif ...2527Moussa Alaa-Eddin...22121-045 ≣E47Olympiad
153Emma Jaime (ARG)2395Polo Gomez Vicent...22120-144 ≣E41Ch Buenos Aires (...
307Gil Capape Javier...2444Janssen Han (NED)23280-147 ≣E47It \
393Murdzia Piotr (POL)2472Aleksandrov Aleks...25050-143 ≣E47Ch Europe (juniors)
513Computer \Computer \1-047 ≣E47Tournament (compu...
251Rodriguez Orestes...2485Olafsson Fridrik ...25300-126 ≣E41It (cat.10)
267Endzelins Lucius ...Bouwmeester Hans ...23430-144 ≣E47Memorial Perfors ...
361Felice AAlagna S1-032 ≣E47corr.
681Aronian Levon (ARM)2768Naiditsch Arkadij...26971-049 ≣E47Ch World (active)...
313Portisch Ferenc (...2405Rigo Janos (HUN)23190-141 ≣E47It (open)
302MolzahnSelke Horst1-035E47corr.
92Ojanen Kaarle S (...2335Euwe Max (NED)0-131 ≣E41Olympiad
481Nesic Nebojsa (SRB)2175Ostojic Nikola (SRB)24450-138 ≣E47It (cat.8)
10Bronstein David I...2432Porath Yosef (ISR)23401-049 ≣E47Olympiad
480Cody Philip CMary Patrick0-145 ≣E47?
419Jussupow Artur (GER)2655Beliavsky Alexand...26400-139 ≣E47It
338Marks IanTenev Teno P0-139 ≣E47Europe Tournament...
500Bernat Marcin (POL)2227Rybak Tomasz (POL)21631-030 ≣E41Ch Poland (team) ...
144Reshevsky Samuel ...2430Porath Yosef (ISR)23401-034 ≣E41Izt
524Michenka Jozef (CZE)2323Holeksa Zdenek (CZE)21061-031 ≣E47It (open)
117Schweber Samuel (...2348Reinhardt Enrique...1-046 ≣E47Ch Argentina (pla...
415Erwes Theo (GER)2104Pioch Thomas (GER)21651-043 ≣E47Hessenliga 1993/94
96Prokhorovich Taras ERovner Dmitry Osi...1-048 ≣E47Tournament
496Balogh JBoros Laszlo (HUN)19190-139 ≣E41Ch Hungary (team)...
472Kostin Sergei (RUS)2290Tunik Gennady (RUS)24500-147 ≣E41Cup Russia (open)
148Kozma Julius (CSR)2380Damjanovic Mato (...23031-038 ≣E47It
539Niemela Antti (FIN)2256Koskela Niina (FIN)23101-045 ≣E47Ch Finland (team)...
57Bisguier Arthur B...2237Turner Abe22001-046 ≣E41Memorial Rosenwald
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
204Pulieri PaoloMicka0-132 ≣E47Ch Europe (corr.)
489Potapov Alexander...2241Filippov Valerij ...25951-045 ≣E41Cup Russia
67Gligoric Svetozar...2447Stenborg Ake (SWE)22800-148 ≣E41Zt
9Germek MilanO'kelly De Galway...24600-134 ≣E41It
295Letic Stevan (SRB)2104Franzen Jozef (SVK)23020-140 ≣E41corr.
26Bronstein David I...2432Horberg Bengt-Eric1-033 ≣E41Olympiad
398Hoszowski PiotrNowak Z1-037 ≣E47Ch Poland (corr.)
30Szabo Laszlo (HUN)1903Pogats Jozsef (HUN)22301-034 ≣E41Ch Hungary
434Vaisser Anatoly (...2555Petursson Margeir...25651-026 ≣E47It (open)
574Garcia Gata Jorge...2021Dimitrov Vladimir...24340-126 ≣E47Memorial Narciso ...
341Dive Russell John...2339Martin Benjamin (...23751-050 ≣E41Ch New Zealand
515Albarran Gustavo ...2255Vazquez Maximilia...21311-050 ≣E47Ch Superior Torre...
377Allacher Erwin (AUT)2124Wutte H20101-026 ≣E47Staatsliga B
383Michenka Jozef (CZE)2346Prandstetter Edua...24100-133 ≣E47Ch Czechoslovakia...
400Sherbakov Ruslan ...2580Kupreichik Viktor...25351-035 ≣E47It \
200Cardoso Carlos Al...2207Sharif Mehrshad (...23300-141 ≣E41Olympiad
358Oriansky AGaspariants I1-048 ≣E47Ch Europe (corr.)
436Sjoberg Mats (SWE)2450Kveinys Aloyzas (...25150-136 ≣E47It (open)