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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
244Beliavsky Alexand...2605Hjartarson Johann...25051-023 ≣E20Cup World (qual)
148Neckel OHobusch Werner (GER)21611-050 ≣E20corr.
593Ruiz Vinals Matia...2030Hoenick Andreas (...21770-134 ≣E20It (open)27 Oct 2006
683Kantans Toms (LAT)2209Hoffmann Michael ...25020-128 ≣E20It (open)28 Dec 2009
173Wallinger Manfred...2150Hofstetter Hans-J...22340-128 ≣E20Ch Bayern (b)
221Ruygrok DennisHotting Arend0-116 ≣E20corr.
769Danielian Elina (...2497Hou Yifan (CHN)25780-138 ≣A40Ch World (team) (w)20 Dec 2011
320Strbad Franjo (SLO)1968Hribersek J0-143 ≣A17Ch Slovenia (corr.)
83Benko Pal C (USA)2408Hudson C1-020 ≣E20Ch USA (team)
247Hertneck Gerald (...2547Huebner Robert Dr...25150-131 ≣E20It (active)
445Ulibin Mikhail (RUS)2583Hulak Krunoslav (...25101-038 ≣E20Ch Croatia (team)...
588Moran Stephen (IRL)1892Hunt Harriet (ENG)24390-128 ≣E20It \30 Sep 2006
548Mamedyarov Shakhr...2674Huzman Alexander ...25651-041 ≣A40Ch Europe20 Jun 2005
807Aleksandrov Aleks...2602Ibragimov Ildar (...25391-026 ≣E20Cup Russia (open)24 Jul 2012
615Toth Ervin (HUN)2348Ignacz Maria (HUN)22231-046 ≣E20It (cat.1)10 Oct 2007
464Monacell JamesIngersol Harry1-037 ≣E20Tournament (IECG)
136Pitkanen Juhani (...1724Inkinen Jorma0-124 ≣E20?
810Santos Latasa Jai...2399Inkiov Ventzislav...24600-145 ≣E20It (open)01 Aug 2012
371Vulfson Vladimir ...2435Ionov Sergey (RUS)25250-129 ≣E20It (open)
570Habermehl Tobias2241Isigkeit Hans Jue...19791-041 ≣E20Tournament \15 Mar 2006
478Volkov Sergey Vik...2624Istratescu Andrei...25931-045 ≣E20It (open)
708De Jong Jan Wille...2444Istratescu Andrei...26310-130 ≣E20It \07 Sep 2010
477Erdogan Hakan (TUR)2212Ivanchuk Vassily ...26990-142 ≣E20Match (exhibition...
388Sakaev Konstantin...2600Ivanov Alexey Jr ...24240-138 ≣E20Cup European Club
21Hadjipetrov Aleks...Ivanov Pavel (RUS)20021-040 ≣E20Ch Bulgaria
120Diez Del Corral J...2470Jakobsen Ole (DEN)24401-031 ≣E20Olympiad
102Knezevic Milorad ...2212Jamroz Zbigniew (...21791-032 ≣E20It
94Kwasniewski Zdzis...2213Jamroz Zbigniew (...21791-022 ≣E20Ch Poland (team)
355Rittler Robert (AUT)2199Janetschek Karl (...23100-131 ≣E20Staatsliga B East...
530Volkov Sergey Vik...2628Jaracz Pawel (POL)25311-048 ≣E20It (open)06 Nov 2004
185Merker RJasinski1-042 ≣E20Ch DDR (corr.)
521Volkov Sergey Vik...2628Jeremic Veljko (SRB)25290-133 ≣E20It (open)
432Moskalenko Viktor...2508Jerez Perez Alfon...23861-031 ≣E20It (open)
372Etchegaray Patric...2340Jerez Perez Alfon...23550-136 ≣E20It (open) (a)
538Ragnarsson Johann...2187Johannessen Leif ...25640-150 ≣E20Ch Iceland (team)...05 Mar 2005
755Bukavshin Ivan (RUS)2506Johansson Linus (...21591-049 ≣E20Ch Europe (junior...13 Sep 2011
646Bouget Alexandre ...1998Jolly Jean-Franco...23550-119 ≣E20It (open)
191Cochet Jean-Danie...2059Jukic Mirko (CRO)24700-143 ≣E20It (open)
329Yakovich Yuri (RUS)2525Jussupow Artur (GER)26300-136 ≣E20It (active)
483Strutinskaya Gali...2306Kabanova Irina (RUS)20521-018 ≣E20Ch Russia (w) (1 ...
283JacimovicKaisarevic1-045 ≣E20corr.
517Jianu Vlad-Cristi...2444Kalinin Alexander...24730-120 ≣E20It (open)26 Feb 2004
293Juarez Alberto (ARG)2244Kanefsck Gustavo ...23730-141 ≣E20It (open) \
218Kekki Petri (FIN)2335Kanko Ilkka (FIN)22311-031 ≣E20It
299Tiihonen IlpoKansanniva Markku0-124 ≣E20Ch Finland (corr.)
298Tiihonen IlpoKansanniva Markku0-124 ≣E20?
616Derichs Roger (GER)2307Kargoll Herbert (...21951-045 ≣E20Hessenliga 2007/0828 Oct 2007
187Moskalenko Viktor...2435Karpman Vadim (UKR)23821-026 ≣E20It
243Khenkin Igor (GER)2624Karpman Vadim (UKR)23821-026 ≣E20Ch URS (young mas...
324Shirov Alexei (ESP)2685Karpov Anatoly (RUS)27600-138 ≣E20It (blitz)
290Shirov Alexei (ESP)2710Karpov Anatoly (RUS)27150-139 ≣E20It
687Bitan Banerjee (IND)2341Karthikeyan P (IND)23980-146 ≣E20It \19 Jan 2010
766Posedaru Bogdan (...2342Katic Goran (SRB)20851-035 ≣E20Cup Belgrade (open)25 Nov 2011
790Biriukov Ilja (RUS)2409Katkov Sergey (RUS)19841-031 ≣E20It (cat.2)19 Mar 2012
386Inocencio Edgarli...2136Kaufman Larry C (...24200-133 ≣E20It \
777Coleman Teddy (USA)2356Kaufman Raymond (...22611-040 ≣E20It \08 Jan 2012
93Butnorius Algiman...2388Kaunas Kestutis (...22541-036 ≣A15?
433Heinola Vesa (SWE)2218Keeling Karen (ENG)19411-025 ≣E20It (open) \
79Kuzmin Gennadi P ...2417Keres Paul (EST)25800-120 ≣E20Ch URS
473Roeschlau Bernd (...2314Kersten Uwe (GER)23571-043 ≣E20Ch Hessen
712Alvarez Johan (VEN)2414Kett T (WLS)22191-041 ≣E20Olympiad25 Sep 2010
262Hertneck Gerald (...2555Ketzscher Roland ...20851-041 ≣E20Bundesliga 1990/91
311Meister Yakov (GER)2445Kharitonov Andrei...25050-128 ≣E20Ch Russia (team)
224Yakovich Yuri (RUS)2450Kharitonov Andrei...25201-024 ≣E20Tournament (swiss)
165Neunhoeffer Helmu...2279Kiefer Gerhard (GER)22571-029 ≣E20Ch Baden (MA)
704Brokken Dennis (NED)2313Kirsanova Ekateri...21541-032 ≣E20It (open) (b)28 Jul 2010
576Galyas Miklos (HUN)2428Kjartansson Gudmu...22461-029 ≣E20It (cat.2)06 Jul 2006
396Rudolph Johannes ...2288Klein Volker (GER)22190-142 ≣E20Bayern Landesliga...
330Van Eaton JasonKleist Frederick ...21040-134 ≣E20It (2)
29Sliwa Bogdan (POL)2235Kluger Gyula (HUN)22500-148 ≣A17It
204Olsson Tomas (SWE)2008Knutsson Bengt0-129 ≣A15Ch Sweden (corr.)
7Kuzminykh Evgeni FKoblenc A (LAT)1-029 ≣E20Ch URS (1/2 final)
403Yurtaev Leonid (KGZ)2520Kochyev Alexander...24301-046 ≣E20Memorial M.Chigorin
437Formanek Edward W...2298Kohlweyer Bernd (...24550-130 ≣E20It (open)
28Hadjipetrov Alexa...2290Kolarov Atanas S ...24150-134 ≣E20Ch Bulgaria
227Malaniuk Vladimir...2560Komarov Dimitri (...25191-030 ≣E20It (open)
114Deze Anton (YUG)2400Komljenovic Davor...24510-130 ≣E20?
10Kuzminykh Evgeni FKondratiev Pavel ...0-139 ≣E20Ch URS (1/2 final)
81Maslov Yevgenij (...2265Korchmar E1-041 ≣E20Ch Armed Forces (...
326Piket Jeroen (NED)2590Korchnoi Viktor (...26250-135 ≣E20Match
812Ovod Evgenija (RUS)2412Kosintseva Tatian...25300-131 ≣A40Ch Russia (superf...03 Aug 2012
551Moskalenko Viktor...2529Kosten Anthony C ...25070-142 ≣E20It (open)06 Aug 2005
364Crouch Colin S (ENG)2410Kosten Anthony C ...25400-143 ≣E20It (open)
783Anfinogenov Artem...2109Kostin Konstantin...22890-136 ≣E20Ch Moscow (1/2 fi...28 Feb 2012
367Kosyrev Vladimir ...2155Kostin Mikhail Y ...22331-028 ≣E20Ch Moscow (open)
45Sliwa Bogdan (POL)2235Kostro Jerzy (POL)23051-047 ≣E20Ch Poland
544Cebalo Miso (CRO)2512Kovacevic Aleksan...25480-135 ≣E20It (open)02 May 2005
620Cafolla Peter (IRL)2023Kozak Milos (CZE)21540-141 ≣E20It (open)20 Jan 2008
727Spoelman Wouter (...2563Kraemer Martin (GER)24921-029 ≣E20Bundesliga 2010/1120 Mar 2011
176NeckelKrechlok1-040 ≣E20corr.
177Brinck-Claussen B...2263Kruszynski Wlodzi...23141-029 ≣E20It (open) \
44Khodos German (RUS)2200Kuijpers Frans A ...22801-040 ≣E20Olympiad (student...
618Adler Bo (SWE)2208Kulaots Kaido (EST)25470-127 ≣E20Cup Rilton30 Dec 2007
135Lempiainen HeimoKumpare Matti1-016 ≣E20?
748Grower Sahaj (IND)2514Kunal M (IND)23041-043 ≣E20Ch World (juniors...03 Aug 2011
796Aleksandrov Aleks...2606Kunte Abhijit (IND)25381-035 ≣E20Cup Mayors (open)14 Jun 2012
151Mustelin JuhaniKuro Timo1-027 ≣E20?
684Muheim Sebastien ...2105Kwiatkowski Felik...22460-129 ≣E20It (open) \03 Jan 2010
380Aaltio Erkki (FIN)2133Kytoniemi Jyrki (...22100-139 ≣E20?
457Kovacs Tamas (HUN)2210Laihonen Petteri ...22870-134 ≣E20Cup Zemplen02 Jul 2000