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Nimzo-Indian, Sämisch Variation, 4.a3 Bxc3+ 5.bxc3 c5 6.e3 Notation: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3

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
441Ernst KlausBerndt Walter (GER)21571-033 ≣E20It (open)
369Santos Carlos P (...2404Walsh Chris (WLS)21580-124 ≣E20Ch World (juniors...
687Pushin Vladimir (...2231Kiselev Vitaliy (...21621-035 ≣E41Ch Russia (junior...
773Mlcoch David (CZE)2191Plsek Miroslav (CZE)21630-137 ≣E20Czech League 2007...02 Dec 2007
620Viniarski Alex (AUS)Oliver Gareth (AUS)21640-115 ≣E20Ch Australia (jun...
834Pavlu Jiri1898Svancara Petr (CZE)21640-167 ≣E20Czech League 2009...18 Oct 2009
530De Groot ThijsCarstensen Jacob ...21650-168 ≣E20It (open) (juniors)
660Mcmaster Richard ...2043Taylor Robert Mar...21650-180 ≣E20Ch Great Britain
585Chiong Luis (PHI)2387Divljan Igor (YUG)21651-032 ≣E41It (open)
574Andersen Ejnar (DEN)2111Petersen Steen (DEN)21660-126 ≣E41Tournament
637Shevchenko MaksimLanin Alexsej (RUS)21660-126E20Ch Russia (junior...
362Birens Eric-Andre...1969Stawiarski Edmond...21680-140 ≣E20Ch France (qual)
709Glawe Hartmut1971Bauer Norbert (GER)21680-130 ≣E20Landesliga (2nd) ...24 Apr 2005
616Petritaj Ferdinan...2194Van Hoolandt Patr...21691-028 ≣E41It (open)
747Karimov Zakir (RUS)2044Kunakbaev Ilnur (...21690-155 ≣E00Ch Bashkortostan17 Dec 2006
555Schmidt Anton (GER)2153Stoer Andreas (GER)21701-053 ≣E20Bayern Landesliga...
676Dommes Vladimir M...2281Ermolov Vasily (RUS)21711-030 ≣E20Tournament (open)\
601Moskalenko Viktor...2508Bevia Luis Martin...21731-031 ≣E41It (open)
640Tsadzikidze Natia...2308Epitashvili Ketev...21731-051 ≣E41Ch Georgia (w)02 Apr 2001
378Borulya Ekaterina...2308Tsiganova Monika ...21730-145 ≣E41Ch URS (w)
900Siebrecht Sebasti...2471Illijin Neboisa (...21741-069 ≣E41Ch Switzerland (o...12 Jul 2011
780Olarasu Ioana (ROM)1820Baciu Anca-Otilia...21770-134 ≣E41Ch Romania (w)25 Feb 2008
742Brossard Armel (FRA)2183Vallet Marc (FRA)21770-151 ≣E20Ch France (team) ...06 Nov 2006
588Mensch Etienne (FRA)2281Amigues Emmanuel ...21771-027 ≣E20It (open)
856Doelker Kai (GER)1723Gruenter Martin (...21780-126 ≣E41Ch Germany (junio...06 Jun 2010
915Vebel Goran (SRB)2123Mladenovic Stefan...21810-126 ≣E20Ch City (open)22 Jan 2012
171Kanko Ilkka (FIN)2231Ofstad Per (NOR)21821-028 ≣E41Zt
524Punteri Marco (ITA)2049De Bortoli Peter ...21831-027 ≣E41Ch Italy (juniors)
812Foisor Mihaela-Ve...2123Baciu Anca-Otilia...21831-036 ≣E20Ch Romania (w)06 Feb 2009
607Sidorchuk Dmitry ...2266Katuzian Valery (...21831-031 ≣E20It (open)
514Khairunnisa W (MAS)1967Mouradian Knarik ...21851-042 ≣E41Olympiad (w)
527Neher MaxMoller Michael Dr...21850-149 ≣E20Bayern Landesliga...
429Belcher EdwardFriedman Josef (USA)21860-160 ≣E20It (open)
793Spirin Oleg (RUS)2438Andersen Morten (...21871-042 ≣E41Cup North Sea (open)16 Jul 2008
656Deruelle Sala Alb...2158Lozano Arribas Ca...21880-142 ≣E41It (open)
467Pyka Andreas (GER)2056Esser Norbert (GER)21880-138 ≣E41Cup Germany
684Eriksson Johan (SWE)2423Lappalainen Tommy...21881-024 ≣E41Cup Rilton
805Roubalik Jakub (CZE)2216Juricek Stanislav...21890-128 ≣E20Czech League 2008...23 Nov 2008
890Dobos Jozsef (HUN)2272Kelemen Gabor (HUN)21890-141 ≣E41Ch Hungary (team)...01 May 2011
868Burcu Cagatay (TUR)1878Rindlisbacher Lar...21900-157 ≣E20Ch Europe (junior...22 Sep 2010
898Ezat Mohamed (EGY)2434Ameir Moheb (EGY)21921-043E41It \05 Jul 2011
845Horvath Jeno Kalm...2048Charleshouse Glen...21921-027 ≣E41It (open) \23 Mar 2010
885Reznik Vladimir (...2170Palchun Grigory (...21941-034 ≣E20Tournament \
446Werner MariaPluemer Detlef (GER)21960-140 ≣E20Oberliga Northeas...
878Schwarz Dusan (SVK)2286Travenec Igor (SVK)21961-060 ≣E20Ch Slovakia (team...13 Feb 2011
384Lim Kok Ann Dr (SIN)2038Usachyi Mark (UKR)21960-162 ≣E20Ch World (seniors)
133Shianovsky Vladis...2255Usachyi Mark (UKR)21961-040 ≣E20Ch Kiev
322Ji Yunqi (CHN)2327Huang Zhengyuan (...21970-148 ≣E20Ch China
582Winiwarter Felix ...2225Pilaj Herwig (AUT)21970-138 ≣E41It (open)
504Sutter TobiasRehl Danny (GER)21971-037 ≣E41Badische ch (juni...
641Furesz Jorsef (HUN)2038Bardossi Jeno (HUN)21980-142 ≣E20Ch Hungary (team)...18 Nov 2001
612Duchateau Thomas ...2060Harovelo Ingmar (...21980-137 ≣E20It (open)
303Anderson AnthonyAlmeida Jose T (POR)21980-142 ≣E41Ch World (team) (...
228Sorri Kari Juhani...2251Keeshan M22001-037 ≣E20Olympiad
227Lim Kok Ann Dr (SIN)2038Le Marquand22001-025 ≣E20Olympiad
193Kaminik Aleksanda...2168Shmit Anatoly (LAT)22000-132 ≣E20Ch URS (team)
677Ruchkin Yuri (RUS)2238Makhianov Vadim (...22011-026 ≣E41Ch Russia (1/2 fi...
383Winiwarter Felix ...2176Titz Heimo (AUT)22021-062 ≣E41Staatsliga
759Rodrigo Edson (BRA)1962Gallo Ponce Elber...22020-1103 ≣E41It (open)27 May 2007
852Brustkern Juergen...2299Lyell Mark (ENG)22021-031 ≣E20It (cat.1) (a)04 May 2010
450Sarmiento Alfonso...2230Garcia Padron Jua...22020-141 ≣E41It (open)
230De Carbonnel HeinzKeglevic Pavao (CRO)22030-132 ≣E20Ch Europe (team) ...
700Tregubov Vadim (UKR)2390Yaremko Nazar (UKR)22030-140 ≣E41Ch Ukraine (junio...
454Vasquez Goncalo1950Weill Roland (FRA)22050-135 ≣E20It (open)
385Hess AlexanderSutterer Robert (...22050-125 ≣E20It (open)
360Kanko Ilkka (FIN)2231Manni Matti (FIN)22061-046 ≣E41Ch Finland (team)
861Swiech Przemyslaw...1448Obrusnik Michal (...22100-140 ≣E41Ch Poland (team) ...10 Jul 2010
195Mihaljcisin Mihaj...2280Ankerst Marjan (SLO)22101-040 ≣E20?
476Belcher EdwardEncencarnacion Er...22111-033 ≣E20It \
691Nowikow Siegfried...2004Juhasz Laszlo (HUN)22110-148 ≣E20It (open)20 May 2004
403Wallace John Paul...2398Kagan Naum (AUS)22130-160 ≣E20It
342Hill Robin (AUS)2175Parsonage Ian (AUS)22151-076 ≣E41Ch Australia
626Churikov Kirill (...2220Shkalov Oleg (RUS)22151-031 ≣E20Ch Russia (junior...
777Rozhkov DDanchinov Viktor ...22150-123 ≣E20Ch City
813Zell StefanFrombach Ralf (GER)22160-1114 ≣E41NRW-liga 2008/0901 Mar 2009
929Maksimovic Branim...2452Milovanovic Srbol...22171-035 ≣E20Ch Central Serbia...07 Jul 2012
457Masip Tressera Or...2035Jove Grau Lluis (...22170-139 ≣E20It (open)
53Perez Perez Franc...Prins Lodewijk (NED)22200-132 ≣E20It
509Cherniack Alex (USA)2270Nute Gary A (USA)22201-028 ≣E20It \
537Maksimovic Suzana...2300Lazic Marina (YUG)22201-019 ≣E20Ch Yugoslavia (te...
505Eriksson Johan (SWE)2310Nordstrom Felix (...22200-125 ≣E41Ch Sweden (master...
480Ilham Abd Hamid (...Ooi Chern Ee (MAS)22200-123 ≣E20Ch Asia (team)
671Sailer Mike (USA)2136Dimitrijevic Dark...22211-025 ≣E41It (open)
744Foisor Sabina-Fra...2326Padurariu Ioana-S...22211-047 ≣E20Ch Romania (team)...11 Nov 2006
159Iljinsky Yaroslav...2270Seoev Robert (TKM)22211-045 ≣E20Ch URS (1/2 final)
374Hirsch RobertAnderton David W ...22210-120 ≣E20corr.
402Rodrigues JPOliveira Antonio ...22221-033 ≣E41It (open)
363Stelzer Harald (GER)2272Lex Christoph (GER)22231-047E41Bundesliga 1988/8...
911Abdel Razik Khale...2423Omorere Benjamin ...22231-043 ≣E41Tournament \10 Sep 2011
154Eriksson GHavansi Erkki E T...22230-144 ≣E20Olympiad (student...
761Hubel Merten (GER)2093Rueberg Jobst (GER)22230-143 ≣E20It (open)26 Jun 2007
461Tejero Royo Fermi...2100Lerch Gallemi Jos...22240-130 ≣E20Ch Catalunia
721Ruether Rudolf (GER)2188Kaiser Matthias (...22251-046 ≣E41Bayern Landesliga...23 Oct 2005
472Schelter Thomas (...2170Gebhardt Ulrich (...22250-129 ≣E20Oberliga East 199...
754Van Elst Andreas ...2350Ducret Thomas (FRA)22251-055 ≣E20Ch France (team) ...21 Jan 2007
604Toth Bela (ITA)2389Kluss Kai (GER)22271-030 ≣E41Bundesliga (2nd) ...
492Gayer Michael (GER)2083Straub Juergen (GER)22280-175 ≣E20Bayern Landesliga...
304McCambridge Vince...2465Contin Daniel (ITA)22301-044 ≣E41Ch World (team) (...
499Chiong Luis (PHI)2390Perez Roland22301-031 ≣E41It (open)
781Sokolov Ivan (NED)2650Bakker Sven (NED)22321-030 ≣E41Ch Netherlands (t...08 Mar 2008