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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
682Khenkin Igor (GER)2634Bagri Jaspaul (SUI)22251-044 ≣E20It (open)27 Dec 2009
157Bulthaupt Freerk ...2176Rhodin Bodo (GER)23350-144 ≣E20Bundesliga (2nd) ...
208Ernst Thomas (SWE)2460Barbero Gerardo F...24750-144 ≣E20It (open)
35Porreca Giorgio (...Tatai Stefano (ITA)23671-044 ≣E20Tournament
104Diaconescu PaulMueller Horst (AUT)20471-044 ≣E20Olympiad (corr.)
180Yrjola Jouni (FIN)2430Rantanen Yrjo A (...24101-044 ≣E20It
211Brinck-Claussen B...2263Schandorff Lars (...24941-044 ≣E20It (open) \
276Moskalenko Viktor...2558Lawson O (SCO)1-044 ≣E20It (open)
284Pein Malcolm (ENG)2382Farago Ivan (HUN)25100-144 ≣E20It (open)
387Asgeirsson Heimir...2185Thorfinnsson Brag...21551-044 ≣E20It (open)
729Bluvshtein Mark (...2593Barrientos Sergio...25071-044 ≣E20Ch American Conti...19 Apr 2011
754Abdalla Luiz Guil...2241Guimaraes Artemis...20161-044 ≣E20Tournament (open)
800Zarate Fernandoh ...1768De Carvalho Igor ...18651-044 ≣E20Ch Pan-American (...03 Jul 2012
803Kelires Andreas (...1965David Alberto (LUX)26050-144 ≣E20It (open)07 Jul 2012
818Drakoulakos Grigo...1736Mouratidis Harala...18581-044 ≣E20It (open)29 Aug 2012
757Yudin Ivan (RUS)2319Draskovic Luka (MNE)21351-045 ≣E20Ch Europe (junior...14 Sep 2011
587Claassen Chris (USA)2078Schuller John1-045 ≣E20Tournament \29 Sep 2006
657Guerrero Alvaro (...2257Ginzburg Maximili...24551-045 ≣E20It (cat.3)18 Mar 2009
478Volkov Sergey Vik...2624Istratescu Andrei...25931-045 ≣E20It (open)
810Santos Latasa Jai...2399Inkiov Ventzislav...24600-145 ≣E20It (open)01 Aug 2012
451Volkov Sergey Vik...2554Ulko Jaroslav (RUS)24560-145 ≣E20Memorial M.Chigor...
426Salmela Hannu (FIN)2041Lugovoi Aleksei (...25090-145 ≣E20It \
392Kis Bela (HUN)2063Nagy Zoltan_ (HUN)18950-145 ≣E20It (open) \
391Bozinovic Bogdan ...2280Palac Mladen (CRO)25400-145 ≣E20It (open)
612Hejl Jaroslav (CZE)2076Vyskocil Neklan (...23081-045 ≣E20It (open)30 Jul 2007
321Vogel Joerg (GER)2047Baumer F1-045 ≣E20Ch Saarland (MV)
317Milov Vadim (SUI)2651Nielsen Peter Hei...24401-045 ≣E20Ch World (juniors...
282Bogdanovic Rajko ...2308Farago Ivan (HUN)24880-145 ≣E20It (open)
616Derichs Roger (GER)2307Kargoll Herbert (...21951-045 ≣E20Hessenliga 2007/0828 Oct 2007
222Malaniuk Vladimir...2560Suba Mihai (ROM)25001-045 ≣E20Cup World (open)
207Varga Mariano (ARG)2143Escandell Juan C ...22760-145 ≣E20corr.
216McMillanCowling TI1-045 ≣E20corr.
283JacimovicKaisarevic1-045 ≣E20corr.
285Bacrot Etienne (FRA)2705Lecuyer Christian...21820-145 ≣E20It (open)
18Korchnoi Viktor (...2556Bykov Valery (RUS)23011-045 ≣E20Ch Leningrad
762Soler Colomer Val...2013Ortega Serra Marc...22340-145 ≣E20Tournament (open)15 Oct 2011
373Ostrowski Andrzej...2265Galkiewicz Darius...22221-046 ≣E20It (open) (a)
360Manion Josh (USA)2360Goldin Alexander ...25850-146 ≣E20It (open)
198Muse Mladen (CRO)2443Chandler Murray G...26100-146 ≣E20Bundesliga 1987/88
700Piskovets Nikita ...2154Drasko Milan (MNE)24860-146 ≣A40It (open)04 Jun 2010
493Hillarp Persson T...2523Topalov Veselin (...27570-146 ≣E20It (active)
615Toth Ervin (HUN)2348Ignacz Maria (HUN)22231-046 ≣E20It (cat.1)10 Oct 2007
67Schmidt Johannes ...2243Gigas J1-046 ≣E20Ch BRD (corr.)
675Petrosyan Tigran ...2073Sathyanandha Sara...19701-046 ≣E20Olympiad (under 16)28 Sep 2009
259Hurme Harri M (FIN)2258Lindberg Bengt (SWE)24141-046 ≣E20It (open)
442Solon Nathan (USA)2278Ashley Maurice (USA)24820-146 ≣E20It \
484Hillarp Persson T...2482Berg Emanuel (SWE)25271-046 ≣A40Ch Sweden
85Bellin Jana (ENG)2133Norman Dinah M (ENG)19021-046 ≣A40Olympiad (w)
217Pieterse Gert (NED)2361Bosman Michiel (NED)23420-146 ≣E20It (open)
522Khenkin Igor (GER)2587Ayas Fernandez An...23361-046 ≣E20It (open)04 Jul 2004
96Hollis Adrian Swa...Lambshire MV1-046 ≣E20Ch Great Britain
561Berkes Ferenc (HUN)2596Romanov Evgeny (RUS)24791-046 ≣E20Ch World (juniors...18 Nov 2005
722Mamedov Ruslan (UKR)2222Budnikov Oleg (UKR)24160-146 ≣E20Tournament \01 Mar 2011
403Yurtaev Leonid (KGZ)2520Kochyev Alexander...24301-046 ≣E20Memorial M.Chigorin
667Rudd Jack (ENG)2326Gibson Christophe...19911-046 ≣E20It (open)12 Jul 2009
687Bitan Banerjee (IND)2341Karthikeyan P (IND)23980-146 ≣E20It \19 Jan 2010
46Polugaevsky Lev A...2585Niephaus Walter (...1-046 ≣E20Ch Europe (team)
140HoewelBusch Raimund (GER)23200-146 ≣E20Ch NRW
721Hoffmann Peter (GER)1766Burger Heinrich (...21590-146 ≣E20Ch City (seniors)...02 Feb 2011
574Konovalov Nikolay...2443Bagirov Rufat (AZE)25040-146 ≣D31Memorial F.Pripis
107Hempson Peter W (...2085Gavrilovic Mikhail22001-047 ≣E20Ch Great Britain
393Gallego Jimenez V...2385Pogorelov Ruslan ...24400-147 ≣E20It (open)
382Adianto Utut (INA)2605Liu Dede (INA)24051-047 ≣E20It (cat.13)
275Misanovic Vesna (...2326Nutu-Gajic Dana (...23501-047 ≣E20Cup Yugoslavia (w)
229Hansen Sune Berg ...2566Panzalovic Srdjan...24581-047 ≣E20It (open)
350Yakovich Yuri (RUS)2515Montecatine Rios ...23611-047 ≣E20It (open)
138Pyhala Antti (FIN)2305Martois Karl-Erik0-147 ≣E20?
45Sliwa Bogdan (POL)2235Kostro Jerzy (POL)23051-047 ≣E20Ch Poland
389Laveryd Peter (SWE)2310Lindberg Bengt (SWE)23551-047 ≣E20Ch Sweden (team) ...
625Sieciechowicz Mar...2321Sochacki Wojtek (...22441-047 ≣E20Ch Poland (junior...02 Apr 2008
435Erdogan Hakan (TUR)2217Olsen Heini (FAI)23130-147 ≣E20Olympiad
90Forintos Gyozo V ...2317Smyslov Vassily (...24940-147 ≣E20It
692Chueca Forcen Alb...2280Suba Mihai (ROM)24640-147 ≣E20It (open)01 Apr 2010
564Palliser Richard ...2411Turner Matthew (ENG)24891-047 ≣E20Ch England (team)...15 Jan 2006
342Ionescu-Ilie Vior...Zak Uriel (ISR)23700-147 ≣E20It (open)
404Dubinskaya M (UKR)2081Lomineishvili Mai...23500-147 ≣E20Ch Europe (junior...
621Akshat Khamparia ...2337Bakre Tejas (IND)24480-147 ≣E20Ch India04 Feb 2008
189Malaniuk Vladimir...2545Naumkin Igor (RUS)24701-048 ≣E20Memorial G.Agzamov
770Galojan Lilit (ARM)2383Zhao Xue (CHN)25410-148 ≣E20Ch World (team) (w)20 Dec 2011
747Thybo Jan2162Buckley Graeme (ENG)23831-048 ≣E20Ch Great Britain27 Jul 2011
143Belistri Ubaldo (...2051Dienavorian Manue...22801-048 ≣E20Ch Uruguay
248Yurtaev Leonid (KGZ)2472Utemov Vladimir (...23851-048 ≣E20Ch URS (club)
603Erdogan Hakan (TUR)2259Demirel Tolga (TUR)22351-048 ≣E20Ch Turkey13 Mar 2007
313Milov Vadim (SUI)2651Greenfeld Alon (ISR)25350-148 ≣E20Ch Israel
815Nishant Malhotra ...2076Dorfanis Ilarion ...22390-148 ≣E20It \19 Aug 2012
5Muhring PimEuwe Max (NED)0-148 ≣E20Ch Netherlands
156Vallifuoco Giovan...2155Ubezio Marco (ITA)21340-148 ≣E20It (open)
220Knudsen Per (DEN)2326Neumann Joachim (...21341-048 ≣E20It (open)
228Hansen Sune Berg ...2566Groenn Atle (NOR)23780-148 ≣E20It (open)
38Weise DietrichClemens Christian...23140-148 ≣E20Ch BRD
594Posedaru Bogdan (...2178Grecescu Gabriel-...24050-148 ≣E20Ch Romania02 Dec 2006
267Chabanon Jean-Luc...2481Dautov Rustem (GER)25950-148 ≣E20It
785Galyas Miklos (HUN)2467Lengyel Bela (HUN)22501-048 ≣E20It (cat.1)05 Mar 2012
706Gardner Robert (CAN)2168Panchanathan Mage...25460-148 ≣E20It (cat.4)01 Aug 2010
378Formanek Edward W...2350Campos Moreno Jav...24850-148 ≣E20Ch Catalunia (team)
661Savchenko Aleksei...2246Graf Felix (GER)22910-148 ≣A40Ch Germany (junio...10 May 2009
419Moskalenko Viktor...2471Rogovski Vladimir...24651-048 ≣E20Ukrainian Games
351Hubert Ralf (GER)2293Rechmann Peter (GER)23160-148 ≣E20It (open)
126Mikenas Vladas I ...2405Salamon1-048 ≣E20Ch Europe (team) ...
530Volkov Sergey Vik...2628Jaracz Pawel (POL)25311-048 ≣E20It (open)06 Nov 2004