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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
771Lokander Martin (...2151Lindberg Bengt (SWE)24150-135 ≣E20Cup Rilton27 Dec 2011
657Guerrero Alvaro (...2257Ginzburg Maximili...24551-045 ≣E20It (cat.3)18 Mar 2009
479De Santis Alessio...2267Mantovani Renzo (...23491-040 ≣E20Ch Italy
500Dao Thien Hai (VIE)2601Adianto Utut (INA)25880-133 ≣E20SEA Games
159Botterill George ...2360Van Der Vliet Fre...23951-022 ≣E20It \29 Aug 1981
659Kalka Arkadius Ge...2373Neimer Vitaly (ISR)23500-127 ≣E20It (cat.4) \20 Apr 2009
653Solomin Maxim (RUS)1958Aksenov Anton1-038 ≣E20Ch City (1 league)14 Feb 2009
618Adler Bo (SWE)2208Kulaots Kaido (EST)25470-127 ≣E20Cup Rilton30 Dec 2007
200Gutman Lev (GER)2465Gligoric Svetozar...25001-041 ≣E20It (open)
585Terrieux Kevin (FRA)2345Bleunven Andre (FRA)22981-031 ≣E20Ch France (access...24 Aug 2006
644Komljenovic Davor...2428Pinter Jozsef (HUN)25360-137 ≣E20Ch Croatia (team)...30 Sep 2008
622Ionov Sergey (RUS)2543Olafsson Helgi (ISL)22701-032 ≣E20It (open) \22 Feb 2008
389Laveryd Peter (SWE)2310Lindberg Bengt (SWE)23551-047 ≣E20Ch Sweden (team) ...
514Khenkin Igor (GER)2587Palac Mladen (CRO)25431-024 ≣E20Memorial Leonardo...25 Apr 2003
642Meerovich IlanHarper Warren (USA)23091-025 ≣E20US Chess League27 Aug 2008
635Cruz Lledo Pablo ...2078Gago Padreny Igna...22180-139 ≣E20Ch Spain (juniors...21 Jul 2008
411Behrhorst Frank (...2290Mossakowski Flori...22150-126 ≣E20Memorial Arnold J...
671Wiersma Eelke (NED)2403Wells Peter K (ENG)24981-039 ≣E20Memorial G.Staunt...12 Aug 2009
346Yakovich Yuri (RUS)2515Littke Adam (CAN)22900-140 ≣E20It \
499Nguyen Chi-Minh (...2370Van Den Doel Erik...25600-125 ≣E20Ch France (team) ...
611Hernandez Rodney ...2100Borges Oliver (CUB)21481-036 ≣E20Tournament (b)20 Jul 2007
472Ulibin Mikhail (RUS)2581Pikula Dejan (SRB)24841-037 ≣E20It (open)
470Erdogan Hakan (TUR)2212Selbes Tarik (TUR)21451-035 ≣E20Ch Turkey
528PunteriBoldrin Marco (ITA)18691-033 ≣E20It (open)06 Sep 2004
453Salmela Hannu (FIN)2047Agopov Mikael (FIN)23990-149 ≣E20It (open)
630Moskalenko Viktor...2568Rojas Luis (CHI)24080-143E20It (open)27 Jun 2008
243Khenkin Igor (GER)2624Karpman Vadim (UKR)23821-026 ≣E20Ch URS (young mas...
100Kondratiev Pavel ...Zhdanov Igor1-028 ≣E20Ch URS (team)
91Vladimirov Boris ...2340Arulaid Alexander...1-031 ≣E20It \
4O'kelly De Galway...2460Wood Gabriel1-028 ≣E20It
12Tal Mikhail N (LAT)2520Etruk Rein T (EST)23981-040 ≣E20Tournament
57Omari (ALB)Ortega Lexy (ITA)24750-126 ≣E20Olympiad
86Partos Charles (SUI)2345Nacht Edgar0-119 ≣E20Ch Romania
2Landau Salo (POL)Van Scheltinga Th...23250-137 ≣E20Match
3Junge Klaus (CHI)Bogoljubow Efim D...0-140 ≣E20It
6Donner Jan-Hein (...2430Pirc Vasja (YUG)0-132 ≣E20It
7Kuzminykh Evgeni FKoblenc A (LAT)1-029 ≣E20Ch URS (1/2 final)
9Sakellaropoulos ThLoverdos S1-024 ≣E20Ch Greece
14Berliner Hans J (...Anderson Frank R ...0-130 ≣E20It (open)
15Baumbach Friedric...2239Schlieder Rolf0-131 ≣E20It (a)30 Dec 1956
17Portisch Lajos (HUN)2523Bilek Istvan (HUN)23751-032 ≣E20Ch Hungary
78Khodos German (RUS)2200Polgar Istvan (HUN)24251-030 ≣E20Olympiad (student...
24Sanguinetti Raul ...2485Wexler Bernardo (...1-040 ≣E20It
79Kuzmin Gennadi P ...2417Keres Paul (EST)25800-120 ≣E20Ch URS
27Sanguinetti Raul ...2485Luckis Marcos22701-020 ≣E20It
30Schweber Samuel (...2348Eliskases Erich G...24300-129 ≣E20Ch Argentina
31Polugaevsky Lev A...2585Teschner Rudolf (...22951-038 ≣E20Match \
88Kort Jacob (NED)2153Tomson J0-119 ≣E20Ch World (students)
34Rutman Aleksandr ...2198Selevinski0-129 ≣E20Match \
37Purdy Cecil J S (...Sarapu Ortvin (NZL)22551-037 ≣E20Ch Australia15 Oct 1960
39Vladimirov Boris ...2340Lein Anatoly (USA)22611-033 ≣E20Ch URS
89Vladimirov Boris ...2340Szabo Laszlo (HUN)19031-021 ≣E20It
41Gligoric Svetozar...2447Germek Milan1-029 ≣E20It
44Khodos German (RUS)2200Kuijpers Frans A ...22801-040 ≣E20Olympiad (student...
45Sliwa Bogdan (POL)2235Kostro Jerzy (POL)23051-047 ≣E20Ch Poland
53Sliwa Bogdan (POL)2235Lengyel Levente (...22930-141 ≣E20It
48Koblencs AleksandrsBuslaev Aleksande...1-028 ≣E20Ch Baltic Republics
50Ghitescu Theodor ...2384Soos Bela (GER)22811-036 ≣E20Ch Romania
51Richardson Keith ...2137Wade Robert G (ENG)21480-136 ≣E20Tournament
52Tal Mikhail N (LAT)2520Barstatis Reinhar...22400-143 ≣E20?
56Wade Robert G (ENG)2148Luginbuhl Erwin (...23701-032 ≣E20Olympiad
58Wade Robert G (ENG)2148Luginbuhl Erwin (...23701-032 ≣E20Olympiad
60Bukic Enver (SLO)2383Sofrevski Jovan (...23751-040 ≣E20It
61Bowen AWWade Robert G (ENG)21481-032E20Ch Great Britain
64Fraczek HenrykSzukszta Janus0-131 ≣E20Ch Poland
65Tay Cheong AnnBerger Bela (HUN)0-137 ≣E20Zt
67Schmidt Johannes ...2243Gigas J1-046 ≣E20Ch BRD (corr.)
68Schmidt Johannes ...2243Lengyel C1-024 ≣E20Europe Tournament...
77Peterson Andrey (...Ridzvanavicius1-029 ≣E20Ch Baltik Republics
70Moehring Guenther...2294Liebert Heinz (GER)22470-137 ≣E20Ch DDR
74Barczay Laszlo (HUN)2381Bokor Istvan (HUN)22261-031 ≣E20Ch Hungary
75ChristensenLakjunas0-121 ≣E20Cup Baltic (corr.)
82Taimanov Mark E (...2386Hamann Svend (DEN)22981-033 ≣E20It \
83Benko Pal C (USA)2408Hudson C1-020 ≣E20Ch USA (team)
84Gipslis Aivars (LAT)2429Vitolins Alvis (LAT)24351-049 ≣E20Tournament
87Miettinen ReinoSalovaara Reino1-020 ≣E20?
92Ageichenko Genadi...2343Smyslov Vassily (...24940-132 ≣E20Tournament
94Kwasniewski Zdzis...2213Jamroz Zbigniew (...21791-022 ≣E20Ch Poland (team)
95Walter HFWanke Rudolf1-031 ≣E20corr.
97Vitolins Alvis (LAT)2435Gerasimov N (RUS)23550-121 ≣E20Ch Armed Forces
99Kondratiev Pavel ...Zhdanov Igor1-030 ≣E20Ch URS (team)
101Khodos German (RUS)2200Rubakhov1-030 ≣E20?
102Knezevic Milorad ...2212Jamroz Zbigniew (...21791-032 ≣E20It
103Gerusel Mathias (...2239Szabo Laszlo (HUN)19030-139 ≣E20It
104Diaconescu PaulMueller Horst (AUT)20471-044 ≣E20Olympiad (corr.)
105Portisch Lajos (HUN)2523Nagy Ervin (HUN)22691-027 ≣E20?
145Vladimirov Boris ...2340Gerasimov Nikolay...20921-021 ≣E20Tournament
108Hildenbrand Peter...2227Soelter Reinhold ...20720-139 ≣E20Ch OWL
109Ligterink Gert (NED)2405Harandi Khosro (IRI)23771-039 ≣E20Ch World (juniors)
110Engel WolfgangWalthemathe A0-121 ≣E20corr.
111Diez Del Corral J...2415Belkadi Ridha (TUN)23451-032 ≣E20Olympiad
112Khodos German (RUS)2200Asaturian S (RUS)1-029 ≣E20?
113Hartmann W (GER)Rodford DE0-130 ≣E20corr.
114Deze Anton (YUG)2400Komljenovic Davor...24510-130 ≣E20?
116Carbone ADebarnot Roberto ...23750-133 ≣E20It
117MooyBubenik J1-040 ≣E20Europe Tournament...
120Diez Del Corral J...2470Jakobsen Ole (DEN)24401-031 ≣E20Olympiad
121Kirsch Michael2200Wostin Rik H (BEL)22500-141 ≣E20Olympiad
122Pribyl Josef (CZE)2450Timoscenko Gennad...24831-042 ≣E20It
28Hadjipetrov Alexa...2290Kolarov Atanas S ...24150-134 ≣E20Ch Bulgaria