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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
783Foisor Mihaela-Ve...1088Gelip Ioana (ROM)6711-029 ≣E20Ch Romania (junio...12 Apr 2008
886Passeri Marco1521De Carolis Massimo19720-155 ≣E20Tournament (weekend)03 Apr 2011
748Kocabalkan Tayfun...1653Bapci Hikmet0-125 ≣E20Ch Turkey (1/2 fi...19 Dec 2006
847Floroiu Ioana-Ale...1662Gelip Ioana (ROM)18240-139 ≣E20Ch Romania (junio...08 Apr 2010
833Barlotti Gabriele...1667Bonade Massimo (ITA)21270-123 ≣E20It (open)18 Oct 2009
814Stachowicz Feliks...1680Bankert Krzysztof...19450-155 ≣E20Ch Poland (team) ...01 Mar 2009
909Russo Arianna1696Andreani Carlo13861-059 ≣E20It (open) (b)04 Sep 2011
903Andris Valentin1697Klemt Gerhard16071-036E20It \17 Jul 2011
657Hova Frode (NOR)1734Taksrud Vidar (NOR)20740-146 ≣E20It (open)
810Altomonte Giuseppe1743Tricomi Massimo (...18751-037 ≣E20It (open) (b)04 Jan 2009
818Zhmailo Yana (RUS)1746Grigorian Alvina ...1-044 ≣E20Ch Russia (junior...20 Apr 2009
942Bohus Adam (HUN)1758Krstulovic Alex (...18210-132 ≣E20Tournament (Elo) (a)09 Sep 2012
913Dambaev Bilikto (...1764Dashibalov Erdem ...23690-125 ≣E20Tournament (open) \17 Dec 2011
645Sanchez Rodenas A...1769Vayser Vladimir (...0-135 ≣E20Memorial Shumov (...
838Altomonte Giuseppe1773Ielapi Vito (ITA)18290-150 ≣E20It (open) (b)04 Jan 2010
839Altomonte Giuseppe1773Fiorentino Vincenzo15091-019 ≣E20It (open) (b)05 Jan 2010
726Hendi Peter (SUI)1784Czimer Jozsef (HUN)18570-125 ≣E20Tournament (Elo) (b)09 Mar 2006
829Naipal Victoria (...1791Chavez Diana Mari...18841-043 ≣E20Ch Continent (w)05 Sep 2009
824Stahnke Alexander...1799Muller Jonas19810-142 ≣E20Zt25 Jun 2009
930Cazacu Gabriela (...1814Forthofer Robert ...22590-134 ≣E20It (open)10 Jul 2012
741Hadamard Olivier ...1816Letreguilly Olivi...23080-143 ≣E20It (open)14 Oct 2006
901Williams Ron (WLS)1819Dodington Russell H1-029 ≣E20It \12 Jul 2011
914Cyra Dariusz (POL)1832Riazantsev Alexan...27100-136 ≣E20Ch Europe (active)17 Dec 2011
917Vlasova Daria (RUS)1849Belova Olga (RUS)20161-044 ≣E20It (open) (w)05 Feb 2012
407Skoberne D1850Marusic V18500-158 ≣E20Ch Slovenia (1 liga)
816Laitinen Martti (...1857Reuben Stewart (ENG)21520-145 ≣E20Ch Europe (senior...06 Apr 2009
621Castillo Garcia E...1858Beltran Lopez Fer...1-035 ≣E20It (open) (b)
853Simovic Mladen (CRO)1862Marcic Ivica (CRO)20050-184 ≣E20It (open)06 May 2010
679Dor R1870Pieroni Guillaume...21180-138E20It (open)24 Oct 2003
618Santurbano Maria ...1873Arnetta Maria Ter...20170-135 ≣E20Ch Italy (w)03 Sep 2000
872Burcu Cagatay (TUR)1878Tilicheev Viaches...23430-136 ≣E20Olympiad (under 16)27 Nov 2010
868Burcu Cagatay (TUR)1878Rindlisbacher Lar...21900-157 ≣E20Ch Europe (junior...22 Sep 2010
583Moreno Carlos (PER)1879Paz Jose C1-032 ≣E20Ch Peru (regional)
745Calisi Elia (ITA)1884Gambardella Piero...20370-143 ≣E20Memorial Magari12 Nov 2006
569Gomez Ruben (ARG)1893Lichtentein Juan1-022 ≣E20It (open)
729Lockwood William ...1895Spraggett Kevin (...26100-144 ≣E20It (open)22 Apr 2006
730Voss Chantal (GER)1898Rummer Baerbel13120-150 ≣E20Ch Germany (junio...09 Jun 2006
834Pavlu Jiri1898Svancara Petr (CZE)21640-167 ≣E20Czech League 2009...18 Oct 2009
353Negro Roberto1900Vehi Bach Victor ...23851-029 ≣E20It (open)
236Kornath Heinrich ...1901Teichgraber G1-019 ≣E20Europe Tournament...
40Szabo Laszlo (HUN)1903Keres Paul (EST)25800-146 ≣E20Tournament (candi...
877Coy William (COL)1903Tapia Daniel (COL)22801-017 ≣E20Tournament (open)05 Feb 2011
50Szabo Laszlo (HUN)1903Laszlo C (HUN)1-029 ≣E20Ch Hungary
192Szabo Laszlo (HUN)1903Ortega Ruiz Jose ...22661-041 ≣E20Olympiad
81Szabo Laszlo (HUN)1903Sliwa Bogdan (POL)22350-143 ≣E20It
576Sipka Zoltan (HUN)1908Vereb Andras (HUN)20860-122 ≣E20It (open)
592Olujic Steve1910Levy David N L (SCO)23100-129 ≣E20Tournament
823Selnes Hamish (AUS)1912Milligan Helen (NZL)19761-022 ≣E20Zt24 Jun 2009
840Stahnke Alexander...1922Haron Greg20581-070 ≣E20Ch Australia (major)06 Jan 2010
331Hart Theo (GER)1927Gruber W1-025 ≣E20It (open)
832Batista Sergio (BRA)1928Fieri Isaac Pedro...20551-038 ≣E20Ch Paulista (final)03 Oct 2009
849Boutsioukis Nikol...1930Galopoulos Panagi...20851-037 ≣E20It (open)10 Apr 2010
701Kazakova Anastasi...1938Dokuchaeva Veroni...1-035 ≣E20Ch Privolzhskogo ...
543Lutter Ladislav (...1940Janos Jozef (SVK)21450-168 ≣E20Ch Slovakia (team...
430Rabara Frantisek ...1940Kalous Miroslav (...20910-149 ≣E20It (open)
827Williams Ron (WLS)1944Wills Alex1-033 ≣E20It (open)14 Jul 2009
454Vasquez Goncalo1950Weill Roland (FRA)22050-135 ≣E20It (open)
258Koskinen Erkki (FIN)1952Virtanen Matti1-044 ≣E20?
702Khattapova Aigul ...1956Ishmurzina Liliya...1-065 ≣E20Ch Privolzhskogo ...
401Birens Eric-Andre...1969Tjiam Dharma (NED)23820-159 ≣E20It (open)
735Lhost Geoffrey (BEL)1969Denayer Eric (BEL)22760-127 ≣E20It (open)30 Jul 2006
490Buettner Ulrich (...1969Weclawski Doris (...21050-124 ≣E20It (w)
362Birens Eric-Andre...1969Stawiarski Edmond...21680-140 ≣E20Ch France (qual)
361Birens Eric-Andre...1969Roos Celine (FRA)21450-169 ≣E20Ch France (qual)
381Birens Eric-Andre...1969Sonntag Hans-Hube...23850-150 ≣E20It (open)
709Glawe Hartmut1971Bauer Norbert (GER)21680-130 ≣E20Landesliga (2nd) ...24 Apr 2005
908Radice Luca (ITA)1972Robbio Pietro18831-039 ≣E20Tournament (open)
828Zielinski Wojciec...1973Rybak Tomasz (POL)22480-136 ≣E20It (open)19 Jul 2009
779Bogatenko Roman (...1978Bereziy Petr (RUS)17940-128 ≣E20Ch City09 Feb 2008
565Stodolova Kristyn...1980Pecinova Magda1-064 ≣E20Ch Czech Republic...
791Sidorov Kirill (RUS)1981Lubanski Mark1-027 ≣E20Cup Volga (open)
541Komarov Andrei (RUS)1981Rutman Aleksandr ...23100-133 ≣E20It (seniors)
422Metzger Christian1985Boeckenhaupt Rudi...20601-042 ≣E20Ch Pfalz
769Denisov Boris (RUS)1987Mukhin Alexey (RUS)17261-061 ≣E20Ch Russia (PODA)07 Nov 2007
247Fodor Istvan (HUN)1988Lepsenyi Lorant (...20550-123 ≣E20Tournament \
927Ghollasi Mood Moj...1991Amin Afshar Hossein1-066 ≣E20Tournament (Elo)09 Jun 2012
691Nowikow Siegfried...2004Juhasz Laszlo (HUN)22110-148 ≣E20It (open)20 May 2004
870Lukacovic Mirosla...2006Eged Igor (SVK)20650-159 ≣E20Ch Slovakia (team...07 Nov 2010
738Birens Eric-Andre...2007Bosman Michiel (NED)23390-134E20Cup European Club11 Oct 2006
257Haggren Stig-Olof...2009Lyly Seppo (FIN)19371-030 ≣E20?
858Wohlers-Armas Fri...2011Guichard Pauline ...22930-132 ≣E20Cup France (w)27 Jun 2010
740Vrettos Vasilios ...2018Girvalakis Spyrid...21300-127 ≣E20It (open) \14 Oct 2006
624Kinkelin Ulrich (...2019Kwossek Georg (GER)20970-137 ≣E20Bayern Regionalli...
520Bartl Ulf (GER)2019Oezen Alf18651-054 ≣E20It (open) \
792Johansson Alexand...2022Blomqvist Erik (SWE)24180-123 ≣E20Ch Sweden (juniors)11 Jul 2008
186Hruska Tomas (CZE)2026Petras Jan (CZE)20850-175 ≣E20Ch Czechoslovakia...
768Foisor Mihaela-Ve...2029Landenbergue Clau...24520-157 ≣E20It (open)14 Sep 2007
185Lubienski Tadeusz...2033Salminsh Gedimins...0-135 ≣E20Cup Baltic (corr.)
517Thuemmler Manfred...2034Thal Olaf (GER)22951-040 ≣E20It (open)
457Masip Tressera Or...2035Jove Grau Lluis (...22170-139 ≣E20It (open)
227Lim Kok Ann Dr (SIN)2038Le Marquand22001-025 ≣E20Olympiad
384Lim Kok Ann Dr (SIN)2038Usachyi Mark (UKR)21960-162 ≣E20Ch World (seniors)
241Lim Kok Ann Dr (SIN)2038Sztekel1-041 ≣E20Olympiad
641Furesz Jorsef (HUN)2038Bardossi Jeno (HUN)21980-142 ≣E20Ch Hungary (team)...18 Nov 2001
420Kozlowski Waldema...2042Bonarek L1-044 ≣E20Ch Poland (corr.)
440Kozlowski Waldema...2042Chruszcz T0-126 ≣E20Ch Poland (corr.)
660Mcmaster Richard ...2043Taylor Robert Mar...21650-180 ≣E20Ch Great Britain
844Benson Oisin P (IRL)2043Murray David (IRL)20391-037 ≣E20It (open)20 Mar 2010
941Edirisinghe Dulan...2046Meshkov Yuri A (RUS)23900-170 ≣E20Olympiad05 Sep 2012
613Kmit Jozef (SVK)2047Bukovinsky J1-033 ≣E20Ch Slovakia (team...