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Nimzo-Indian, Sämisch Variation, Keres Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5

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
86Partos Charles (SUI)2345Nacht Edgar0-119 ≣E20Ch Romania
110Engel WolfgangWalthemathe A0-121 ≣E20corr.
411Behrhorst Frank (...2290Mossakowski Flori...22150-126 ≣E20Memorial Arnold J...
57Omari (ALB)Ortega Lexy (ITA)24750-126 ≣E20Olympiad
52Tal Mikhail N (LAT)2520Barstatis Reinhar...22400-143 ≣E20?
108Hildenbrand Peter...2227Soelter Reinhold ...20720-139 ≣E20Ch OWL
500Dao Thien Hai (VIE)2601Adianto Utut (INA)25880-133 ≣E20SEA Games
635Cruz Lledo Pablo ...2078Gago Padreny Igna...22180-139 ≣E20Ch Spain (juniors...21 Jul 2008
692Chueca Forcen Alb...2280Suba Mihai (ROM)24640-147 ≣E20It (open)01 Apr 2010
38Weise DietrichClemens Christian...23140-148 ≣E20Ch BRD
30Schweber Samuel (...2348Eliskases Erich G...24300-129 ≣E20Ch Argentina
51Richardson Keith ...2137Wade Robert G (ENG)21480-136 ≣E20Tournament
75ChristensenLakjunas0-121 ≣E20Cup Baltic (corr.)
103Gerusel Mathias (...2239Szabo Laszlo (HUN)19030-139 ≣E20It
301Gutman Lev (GER)2465Fahnenschmidt Ger...20260-137 ≣A15Bundesliga 1991/92
597Adler Bo (SWE)2185Berczes David (HUN)24150-135 ≣E20Cup Rilton28 Dec 2006
404Dubinskaya M (UKR)2081Lomineishvili Mai...23500-147 ≣E20Ch Europe (junior...
644Komljenovic Davor...2428Pinter Jozsef (HUN)25360-137 ≣E20Ch Croatia (team)...30 Sep 2008
515Donnoli Giorgio1485Tamburini Lorenzo...20860-138 ≣E20It (open)05 Sep 2003
630Moskalenko Viktor...2568Rojas Luis (CHI)24080-143E20It (open)27 Jun 2008
55Aaron Manuel (IND)2315Teschner Rudolf (...22950-137 ≣E20Izt
19Mititelu Gheorghe...2300Minev Nikolay N (...23700-136 ≣E20Olympiad (student...
15Baumbach Friedric...2239Schlieder Rolf0-131 ≣E20It (a)30 Dec 1956
79Kuzmin Gennadi P ...2417Keres Paul (EST)25800-120 ≣E20Ch URS
33Marini LuisOlafsson Fridrik ...24340-137 ≣A17It
53Sliwa Bogdan (POL)2235Lengyel Levente (...22930-141 ≣E20It
65Tay Cheong AnnBerger Bela (HUN)0-137 ≣E20Zt
70Moehring Guenther...2294Liebert Heinz (GER)22470-137 ≣E20Ch DDR
92Ageichenko Genadi...2343Smyslov Vassily (...24940-132 ≣E20Tournament
97Vitolins Alvis (LAT)2435Gerasimov N (RUS)23550-121 ≣E20Ch Armed Forces
700Piskovets Nikita ...2154Drasko Milan (MNE)24860-146 ≣A40It (open)04 Jun 2010
588Moran Stephen (IRL)1892Hunt Harriet (ENG)24390-128 ≣E20It \30 Sep 2006
606Cruz Lledo Pablo ...1945Uribe Arteaga Dan...22600-137 ≣E20It (cat.1)12 Apr 2007
558Cebalo Miso (CRO)2512Zelcic Robert (CRO)25330-149 ≣E20Ch Croatia (team)03 Oct 2005
659Kalka Arkadius Ge...2373Neimer Vitaly (ISR)23500-127 ≣E20It (cat.4) \20 Apr 2009
595Demin Dmitry (RUS)1714Avanesyan Georgy ...19790-129 ≣A17Ch Region (1 liga)10 Dec 2006
90Forintos Gyozo V ...2317Smyslov Vassily (...24940-147 ≣E20It
618Adler Bo (SWE)2208Kulaots Kaido (EST)25470-127 ≣E20Cup Rilton30 Dec 2007
496Bjornes Leif (NOR)1976Hansen Anders (SWE)17230-142 ≣E20It (open) \
346Yakovich Yuri (RUS)2515Littke Adam (CAN)22900-140 ≣E20It \
543Ballon Guenther J...2212Solleveld Maarten...24630-137 ≣E20It (open)29 Apr 2005
453Salmela Hannu (FIN)2047Agopov Mikael (FIN)23990-149 ≣E20It (open)
59Wade Robert G (ENG)2148Ortega Lexy (ITA)24750-137 ≣E20Olympiad
106Khodos German (RUS)2200Platonov Igor V (...24300-129 ≣E20Ch URS (1/2 final)
29Sliwa Bogdan (POL)2235Kluger Gyula (HUN)22500-148 ≣A17It
42Luik Helmuth (EST)2209Arulaid Alexander...0-148 ≣A15Ch Estonia
3Junge Klaus (CHI)Bogoljubow Efim D...0-140 ≣E20It
14Berliner Hans J (...Anderson Frank R ...0-130 ≣E20It (open)
16Starck Bodo (GER)2248Dorawa Bernhard (...19820-128 ≣A40It (a)30 Dec 1956
728Purnoch Josef (CZE)2127Drabek Vojtech (CZE)21280-140E20Czech League 2010...03 Apr 2011
780Shyam Sundar M (IND)2462Zemerov Vladimir ...23230-140 ≣E20It (open)01 Feb 2012
88Kort Jacob (NED)2153Tomson J0-119 ≣E20Ch World (students)
794Gardner Robert (CAN)2196Shabalov Alexande...25230-137 ≣E20It (open)18 May 2012
34Rutman Aleksandr ...2198Selevinski0-129 ≣E20Match \
225Danner Georg (AUT)2408Brglez Rado (SLO)23150-141 ≣E20It (cat.8)
64Fraczek HenrykSzukszta Janus0-131 ≣E20Ch Poland
47Weise DietrichLengyel Levente (...22930-144 ≣E20Ch Europe (team)
5Muhring PimEuwe Max (NED)0-148 ≣E20Ch Netherlands
71Asmundsson Ingvar...2292Palmason Gudmundu...22700-128 ≣E20It
815Nishant Malhotra ...2076Dorfanis Ilarion ...22390-148 ≣E20It \19 Aug 2012
826Fusco Leonardo (ARG)2379Espinoza Palomino...22650-113 ≣E20Ch American Conti...20 Oct 2012
217Pieterse Gert (NED)2361Bosman Michiel (NED)23420-146 ≣E20It (open)
208Ernst Thomas (SWE)2460Barbero Gerardo F...24750-144 ≣E20It (open)
285Bacrot Etienne (FRA)2705Lecuyer Christian...21820-145 ≣E20It (open)
286Matveeva Svetlana...2425Bojkovic Natasa (...23300-128 ≣E20It \
115Mileika YaLevchenkov Vitaly...22600-123 ≣E20?
141Slavov Dimcho (BUL)2225Bobotsov Milko G ...24050-138 ≣E20It
157Bulthaupt Freerk ...2176Rhodin Bodo (GER)23350-144 ≣E20Bundesliga (2nd) ...
62Bonne Mark (BEL)2250Bernhardt Rolf (GER)22880-140 ≣E20It
771Lokander Martin (...2151Lindberg Bengt (SWE)24150-135 ≣E20Cup Rilton27 Dec 2011
207Varga Mariano (ARG)2143Escandell Juan C ...22760-145 ≣E20corr.
254Khenkin Igor (GER)2624Ulibin Mikhail (RUS)24600-139 ≣A40It
351Hubert Ralf (GER)2293Rechmann Peter (GER)23160-148 ≣E20It (open)
36Vesely Jaromir (CZE)1979Florian Jaromir (...0-128 ≣E20Ch Czechoslovakia
574Konovalov Nikolay...2443Bagirov Rufat (AZE)25040-146 ≣D31Memorial F.Pripis
504Marinangeli Marti...2139Arambel Sergio (ARG)22960-142 ≣E20Ch City (match)
722Mamedov Ruslan (UKR)2222Budnikov Oleg (UKR)24160-146 ≣E20Tournament \01 Mar 2011
538Ragnarsson Johann...2187Johannessen Leif ...25640-150 ≣E20Ch Iceland (team)...05 Mar 2005
457Kovacs Tamas (HUN)2210Laihonen Petteri ...22870-134 ≣E20Cup Zemplen02 Jul 2000
294Diaz AdolfoParamos Dominguez...24180-143 ≣E20It (open)
359Etchegaray Patric...2340Urday Henry (PER)24350-143 ≣E20It (open)
435Erdogan Hakan (TUR)2217Olsen Heini (FAI)23130-147 ≣E20Olympiad
499Nguyen Chi-Minh (...2370Van Den Doel Erik...25600-125 ≣E20Ch France (team) ...
573De Val Daniele (ITA)2182Brunello Sabino (...24600-120 ≣E20Ch Italy (team)23 Apr 2006
770Galojan Lilit (ARM)2383Zhao Xue (CHN)25410-148 ≣E20Ch World (team) (w)20 Dec 2011
402Khenkin Igor (GER)2550Naumkin Igor (RUS)24100-141 ≣A40It (open)
407Solana Suarez Ern...2285Gomez Esteban Jua...24750-127 ≣E20It (open)
580Neschetny Viktor ...2138Pavlov Sergey (UKR)24260-143 ≣E20It (open) \28 Jul 2006
554Avila Jimenez Jav...2238Suba Mihai (ROM)25120-139 ≣E20It (open)02 Sep 2005
28Hadjipetrov Alexa...2290Kolarov Atanas S ...24150-134 ≣E20Ch Bulgaria
442Solon Nathan (USA)2278Ashley Maurice (USA)24820-146 ≣E20It \
342Ionescu-Ilie Vior...Zak Uriel (ISR)23700-147 ≣E20It (open)
529Erdogan Hakan (TUR)2220Baramidze David (...25430-137 ≣E20Cup European Club03 Oct 2004
288Shirov Alexei (ESP)2710Beliavsky Alexand...25950-140 ≣E20It
128Sakovich Igor (LAT)2210Shmit Anatoly (LAT)22000-143 ≣E20?
2Landau Salo (POL)Van Scheltinga Th...23250-137 ≣E20Match
743Cebalo Miso (CRO)2478Carron Julien (SUI)23740-137 ≣A17Ch Switzerland (o...13 Jul 2011
6Donner Jan-Hein (...2430Pirc Vasja (YUG)0-132 ≣E20It
329Yakovich Yuri (RUS)2525Jussupow Artur (GER)26300-136 ≣E20It (active)
113Hartmann W (GER)Rodford DE0-130 ≣E20corr.