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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
326Frieser Klaus (GER)2151Prizant Michael (...21360-138 ≣E41Europe Tournament...
186Bronstein Luis (ARG)2349Schweber Samuel (...23480-138 ≣E41It
251Rodriguez Orestes...2485Olafsson Fridrik ...25300-126 ≣E41It (cat.10)
172Kolarov Atanas S ...2415Sapunov Lilko1-028 ≣E41Ch Bulgaria01 Mar 1966
176Diez Del Corral J...2415O'kelly De Galway...24600-144 ≣E41It
65Herink Miroslav (...2071Blatny Frantisek ...21121-038E41It
254Podgaets Mikhail ...2465Donchenko Anatoly...23851-033 ≣E41?
111Letelier Rene (CHI)2151Redolfi1-049 ≣E41?
196Karjarinta TapaniNurmi Toivo0-128 ≣E41?
496Balogh JBoros Laszlo (HUN)19190-139 ≣E41Ch Hungary (team)...
297Kausek KZlebcik L1-037 ≣E41Ch Czechoslovakia...
265Podgaets Mikhail ...2450Romanishin Oleg M...25601-049 ≣E41?
414Parulava Temur (GER)2287Dudek Richard (GER)22450-120 ≣E41Bundesliga (2nd) ...
450Lyrberg Patrik (SWE)2415Bilalic Merim (BIH)22810-129 ≣E41Ch World (juniors...
57Bisguier Arthur B...2237Turner Abe22001-046 ≣E41Memorial Rosenwald
286Knaak Rainer (GER)2505Tischbierek Raj (...24541-042 ≣E41It
13Kotov Alexander A...2500Matanovic Aleksan...24901-041 ≣E41Izt
291Hesselbarth Karlh...1808Piastowski Kurt (...19781-039 ≣E41Ch DDR (corr.)
312Hoi Carsten (DEN)2420Kormanyos Zoltan ...23141-034 ≣E41It (open)
119Borja MEuwe Max (NED)0-134 ≣E41Olympiad
263Keene Raymond D (...2455Romanishin Oleg M...25600-140 ≣E41?
192Hofmann GeorgeSchmid Hans-Peter...18990-142 ≣E41corr.
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...
59Ciocaltea Viktor ...2420Safvat Yousof (IRN)0-146 ≣E41Olympiad (sf)06 Sep 1956
37Milic Borislav (YUG)Matanovic Aleksan...24900-140 ≣E41Match
76Dittmann SieghardOlafsson Fridrik ...24340-140 ≣E41Olympiad (student...
237Tarjan James E (USA)2490Padevsky Nikola (...23551-030 ≣E41It
17Najdorf Miguel (POL)2445Reshevsky Samuel ...24300-135 ≣E41Match
33Uusi Gunnar (EST)2410Levenfish Grigori...1-028 ≣E41Ch Moscow
236Sydor Andrzej (POL)2325Pinkas Karol (POL)23201-045 ≣E41It (b)
243Ivanov Igor V (CAN)2424Popov Nikolay (MDA)24100-140 ≣E41Tournament
728Salem A R Saleh (...2489Ashwath R (IND)22491-036 ≣E41Ch World (juniors...07 Aug 2011
23Geller Efim P (RUS)2455Kotov Alexander A...25000-142 ≣E41Tournament (candi...
92Ojanen Kaarle S (...2335Euwe Max (NED)0-131 ≣E41Olympiad
199Baart JoanWeyerstrass Ronal...0-148E41Match
12Moisieev Oleg L (...2385Byvshev Vasily Mi...1-034 ≣E41Ch URS
54Enevoldsen Jens (...2350Larsen Bent (DEN)24150-129 ≣E41It
202Steiner Josef (AUT)2116Yudovich Mikhail ...1-033 ≣E41corr.
374Ferrer Serrano Ro...2138Dominguez Ofretor...21380-129 ≣E41It \
184Donner Jan-Hein (...2430Rovira Mas Jorge ...22901-036 ≣E41Olympiad
48Vladimirov Boris ...2340Lisitsyn Georgy (...0-133 ≣E41Ch URS (1/2 final)
185Visier Segovia Fe...2233Medina-Garcia Ant...22531-042 ≣E41?
180ZverevicMarkovic Igor (CRO)22070-140 ≣E41Tournament (corr.)
181Cherepkov Alexand...2395Tseshkovsky Vital...24720-141 ≣E41Ch URS
248KeneszDuenhaupt HW (GER)1-040 ≣E41Ch Europe (team) ...
366Siciarz JHoszowski Piotr0-146 ≣E41Ch Poland (corr.)
169Schweber Samuel (...2348Mecking Henrique ...25781-039 ≣E41Tournament
690Kashlinskaya Alin...2358Girya Olga (RUS)24141-050 ≣E41Ch Russia (junior...18 Apr 2010
200Cardoso Carlos Al...2207Sharif Mehrshad (...23300-141 ≣E41Olympiad
77SehlstedtBlatny Frantisek ...21120-141 ≣E41Olympiad (student...
164Szabo Laszlo (HUN)1903Matanovic Aleksan...24901-033 ≣E41Match \
195FehsingerSchlosser1-029 ≣E41Europe Tournament...
376Hager Franz (AUT)2224Felsberger Alfred...23611-035 ≣E41Staatsliga 1991/92
150Portisch Lajos (HUN)2523Porath Yosef (ISR)23401-044 ≣E41Olympiad
152Garcia Horacio2200Polo Gomez Vicent...22120-134 ≣E41Ch Buenos Aires
632Iotov Valentin (BUL)2509Kuzubov Yuriy (UKR)25821-045 ≣E41It \07 Jun 2007
44Idigoras GregorioSanguinetti J0-145 ≣E41Ch Argentina
156Harjunpaa VeikkoTschernauskas0-134 ≣E41Cup Baltic (corr.)
22Averbakh Yuri L (...2445Euwe Max (NED)1-045 ≣E41Tournament (candi...
14Tolush Alexander ...Troianescu Octav ...23301-037 ≣E41It
147Krutiansky Anatoly AZhdanov Igor0-127 ≣E41Ch Latvia
6Nikolac Juraj (CRO)2438Matanovic Aleksan...24900-128 ≣E41Ch Yugoslavia
63Soos Bela (ROM)2281Ingerslev Aage (DEN)22301-039 ≣E41Olympiad16 Sep 1956
500Bernat Marcin (POL)2227Rybak Tomasz (POL)21631-030 ≣E41Ch Poland (team) ...
472Kostin Sergei (RUS)2290Tunik Gennady (RUS)24500-147 ≣E41Cup Russia (open)
3Wood GabrielMitchell Graham1-028 ≣E41Ch World (corr.)
30Szabo Laszlo (HUN)1903Pogats Jozsef (HUN)22301-034 ≣E41Ch Hungary
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
41Somers StafJorgensen Vagn Rauhe0-139 ≣E41Ch World (juniors...
46Furman Semen (RUS)2550Kotov Alexander A...25001-037 ≣E41Ch URS
149Niemela IlmariSafvat Y1-029 ≣E41Olympiad
15Kluger Gyula (HUN)2250Florian Tibor (HUN)1-038 ≣E41Ch Hungary
40Schweber Samuel (...2348Spassky Boris V (...25480-135 ≣E41Ch World (juniors...
159Lapienis Donatas ...2282Rusakov Jury (RUS)22470-124 ≣E41Ch Lithuania
28Gligoric Svetozar...2447Janosevic Dragolj...23301-032 ≣E41It
26Bronstein David I...2432Horberg Bengt-Eric1-033 ≣E41Olympiad
29Rabar Braslav (YUG)Janosevic Dragolj...23300-147 ≣E41It
25Taimanov Mark E (...2386Euwe Max (NED)0-141 ≣E41Tournament (candi...
140Herren WalterBernhardt Rolf (GER)22880-140 ≣E41It
16Idigoras GregorioMarini Luis0-143 ≣E41Ch Argentina
676Miranda Yerisbel ...2194Garcia Pantoja Ro...23760-134 ≣E41Memorial J.Capabl...11 Jun 2009
341Dive Russell John...2339Martin Benjamin (...23751-050 ≣E41Ch New Zealand
39Jorgensen Vagn RauheSpassky Boris V (...25480-133 ≣E41Ch World (juniors...
43Idigoras GregorioNajdorf Miguel (POL)24450-139 ≣E41Ch Argentina
45Furman Semen (RUS)2550Antoshin Vladimir...22500-146 ≣E41Ch URS
50Palmason Gudmundu...2270Einarsson Jon1-029 ≣E41It
145Morgulov Alexsand...2335Sardarov Edward (...22060-131 ≣E41Ch Azerbaijan
53Kozma Julius (CSR)2380Lax Hendrich1-029 ≣E41Ch Czechoslovakia...
252Boudy Julio (CUB)2188Campos Lopez Mari...23551-042 ≣E41It
135Sanguinetti Raul ...2485Bielicki Carlos (...23151-040 ≣E41It
144Reshevsky Samuel ...2430Porath Yosef (ISR)23401-034 ≣E41Izt
337Michenka Jozef (CZE)2346Kazek Krzysztof (...20001-026 ≣E41It
259Yrjonen MarkkuMolarius Reijo (FIN)1-036 ≣E41?
299Gneusz WEichenberg1-034 ≣E41corr.
137Tanin SRausch Wilfried (...22451-029 ≣E41corr.
123Galonska WIwaschin A1-046 ≣E41corr.