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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
395Adler Bo (SWE)2171Backe Peter (SWE)22350-160 ≣E20Ch Sweden (master...
107Ajanski Jordan S ...2350Kolarov Atanas S ...24150-135 ≣E20Ch Bulgaria
733Alonso Rosell Alv...2231Rodriguez Lorenzo...19361-018 ≣E20Ch Spain (schools)27 Jun 2006
102Alster DKolarov Atanas S ...24150-135 ≣E20It
113Alster Ladislav (...Filip F1-046 ≣E20Ch Czechoslovakia...22 Aug 1955
810Altomonte Giuseppe1743Tricomi Massimo (...18751-037 ≣E20It (open) (b)04 Jan 2009
838Altomonte Giuseppe1773Ielapi Vito (ITA)18290-150 ≣E20It (open) (b)04 Jan 2010
839Altomonte Giuseppe1773Fiorentino Vincenzo15091-019 ≣E20It (open) (b)05 Jan 2010
903Andris Valentin1697Klemt Gerhard16071-036E20It \17 Jul 2011
883Anfinogenov Artem...2098Tilicheev Viaches...23890-132 ≣E20Ch Moscow (1/2 fi...17 Mar 2011
35Aratovsky NikolaySokolsky Alexey (...0-145 ≣E20Ch URS (1/2 final)
280Asfora Marco (BRA)2219Milos Gilberto (BRA)25970-156 ≣E20Ch Brazil
70Averbakh Yuri L (...2445Estrin Yakov B (RUS)24500-164 ≣E20Ch Moscow
819Avram Veselin (SRB)2134Bodiroga Predrag ...24310-139 ≣E20Cup Vojvodina (team)30 Apr 2009
405Baez IsidoroSaavedra Juan (CHI)21140-135 ≣E20Tournament (team) \
921Bahzad Zeenaldeen...2118Ares Saber Majeed21421-040 ≣E20Ch Iraq23 Mar 2012
69Balanel Ion (ROM)Szabo Stefan1-078E20It
670Barkovskaya Irina...2156Nikitina Aleksand...19321-025 ≣E20Ch Tver region (w)
907Barlocco Carlo (ITA)2135Pierantozzi Stani...19711-057 ≣E20It (open)28 Aug 2011
833Barlotti Gabriele...1667Bonade Massimo (ITA)21270-123 ≣E20It (open)18 Oct 2009
520Bartl Ulf (GER)2019Oezen Alf18651-054 ≣E20It (open) \
832Batista Sergio (BRA)1928Fieri Isaac Pedro...20551-038 ≣E20Ch Paulista (final)03 Oct 2009
423Bauerle PHaakonstad O1-030 ≣E20Tournament
442Bauerle PBluestone M1-032E20It (open) \
175Behr Maxmilian (GER)2070Suess W21051-016 ≣E20Europe Tournament...
476Belcher EdwardEncencarnacion Er...22111-033 ≣E20It \
429Belcher EdwardFriedman Josef (USA)21860-160 ≣E20It (open)
307Belistri Ubaldo (...2051Vazquez L1-047 ≣E20Ch Uruguay (1/2 f...
23Beni Alfred (AUT)2210Mueller Hans0-149 ≣E20It
844Benson Oisin P (IRL)2043Murray David (IRL)20391-037 ≣E20It (open)20 Mar 2010
732Berczes David (HUN)2415Kincs Imre (HUN)22401-041 ≣E20It (open)24 Jun 2006
86Berenzon MauricioMangini Jose Thiago0-136 ≣E20Ch Brazil
821Berkell Peder (SWE)2218Ranby Hans (SWE)19811-029 ≣E20Tournament (Elo)23 May 2009
362Birens Eric-Andre...1969Stawiarski Edmond...21680-140 ≣E20Ch France (qual)
401Birens Eric-Andre...1969Tjiam Dharma (NED)23820-159 ≣E20It (open)
361Birens Eric-Andre...1969Roos Celine (FRA)21450-169 ≣E20Ch France (qual)
738Birens Eric-Andre...2007Bosman Michiel (NED)23390-134E20Cup European Club11 Oct 2006
381Birens Eric-Andre...1969Sonntag Hans-Hube...23850-150 ≣E20It (open)
210Biyiasas Peter (USA)2450Ludgate Alan (IRL)22650-155 ≣E20Ch British Columbia
799Blackburn Joathan...2175Campbell Ian (ENG)20311-035 ≣E20Ch European Union12 Sep 2008
757Blackburn Joathan...2228Rees Ioan (WLS)22730-131 ≣E20Ch Wales07 Apr 2007
399Blanco Cesar Augu...2105Roldan Manzo Eddy R1-041 ≣E20Ch Guatemala \
400Blanco Cesar Augu...2105Roldan Manzo Eddy R0-139 ≣E20Ch Guatemala (may...
178Blazek JosefSorsak Jozef Sr (...21251-044 ≣E20Ch Czechoslovakia...
785Blok Michiel (NED)2212Wustefeld Emile (...22320-158 ≣E20It (open)11 May 2008
779Bogatenko Roman (...1978Bereziy Petr (RUS)17940-128 ≣E20Ch City09 Feb 2008
942Bohus Adam (HUN)1758Krstulovic Alex (...18210-132 ≣E20Tournament (Elo) (a)09 Sep 2012
76Boleslawski ZbigniewGadalinski Jan (POL)0-151 ≣E20Ch Poland11 Oct 1952
77Boleslawski ZbigniewGawlikowski Stani...1-051 ≣E20Ch Poland17 Oct 1952
375Borici Ylvije (ALB)Mills Natalie (AUS)20290-141 ≣E20Olympiad
46Borisenko Georgy ...2354Sokolsky Alexey (...1-057 ≣E20Ch URS
935Bosiocic Marin (CRO)2570Fedorchuk Sergey ...26301-050 ≣E20It \21 Jul 2012
617Boteanu Jean (ROM)2105Zarnescu Marius (...18440-136 ≣E20Ch Romania (1/2 f...
849Boutsioukis Nikol...1930Galopoulos Panagi...20851-037 ≣E20It (open)10 Apr 2010
169Bratcko ICeglar Michael (GER)20000-129 ≣E20Tournament
714Bricard Emmanuel ...2474Miezis Normunds (...24701-050 ≣E20It21 Jul 2005
239Brilla Banfalvi S...Koskinen Unto1-027 ≣E20corr.
238Brilla Banfalvi S...Bjorkqvist Armas1-020 ≣E20corr.
902Brink Baarry (NED)2193Pauw Sander (NED)21300-138 ≣E20It (open)16 Jul 2011
282Brkusanin DBiukovic Goran (CRO)1-027 ≣E20It (open)
39Bronstein David I...2432Smyslov Vassily (...24941-058 ≣E20Tournament (candi...
742Brossard Armel (FRA)2183Vallet Marc (FRA)21770-151 ≣E20Ch France (team) ...06 Nov 2006
852Brustkern Juergen...2299Lyell Mark (ENG)22021-031 ≣E20It (cat.1) (a)04 May 2010
490Buettner Ulrich (...1969Weclawski Doris (...21050-124 ≣E20It (w)
725Bukal Vladimir Jr...2443Meszaros Tamas (HUN)23521-028 ≣E20Bundesliga B Mitt...04 Mar 2006
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
218Cafure EmilioCruz Raul0-125 ≣E20It (open)
170Calero I (CUB)Ivkov Borislav (SRB)24160-142 ≣E20Memorial J.Capabl...
745Calisi Elia (ITA)1884Gambardella Piero...20370-143 ≣E20Memorial Magari12 Nov 2006
182Camara Helder (BRA)2347De Freitas Marcio...1-042 ≣E20Ch Brazil
563Carbajal Augusto ...2217Ramos Ernesto (PER)22800-142 ≣E20Ch Peru
621Castillo Garcia E...1858Beltran Lopez Fer...1-035 ≣E20It (open) (b)
43Castillo Larenas ...O'kelly De Galway...24600-142 ≣E20Olympiad
930Cazacu Gabriela (...1814Forthofer Robert ...22590-134 ≣E20It (open)10 Jul 2012
439Ceragioli JohnHimes Harold0-130 ≣E20Ch State California
390Chapman RogerVan Dijk Timon (NED)22330-125 ≣E20corr.
548Chaves Jorge Anto...2110De Souza Marcos1-030 ≣E20Tournament (qual)
854Chen Yun (CHN)2181Li Wenliang (CHN)24410-152 ≣E20Tournament \18 May 2010
509Cherniack Alex (USA)2270Nute Gary A (USA)22201-028 ≣E20It \
97Chistiakov Alexan...Lisitsyn Georgy (...1-051 ≣E20Ch URS (team)
317Chow Albert (USA)2206Chachere Lawrence...23051-032 ≣E20Ch Illinois
846Chub Alexey (RUS)2094Suprunenko Yury1-034 ≣E20Tournament (Elo) \
626Churikov Kirill (...2220Shkalov Oleg (RUS)22151-031 ≣E20Ch Russia (junior...
376Clement CCallychurn J1-062 ≣E20Olympiad
165Colon H (PUR)Chipev T (BUL)0-140 ≣E20Olympiad
345Computer \Computer \0-138 ≣E20Ch Netherlands (c...
877Coy William (COL)1903Tapia Daniel (COL)22801-017 ≣E20Tournament (open)05 Feb 2011
12Cruz Walter Oswal...De Souza Mendes J...1-035 ≣E20Ch Brazil (qual)
914Cyra Dariusz (POL)1832Riazantsev Alexan...27100-136 ≣E20Ch Europe (active)17 Dec 2011
913Dambaev Bilikto (...1764Dashibalov Erdem ...23690-125 ≣E20Tournament (open) \17 Dec 2011
532Dang V Dung (VIE)2138Zagrebelny Sergey...24750-130 ≣E20Ch World Cities
230De Carbonnel HeinzKeglevic Pavao (CRO)22030-132 ≣E20Ch Europe (team) ...
530De Groot ThijsCarstensen Jacob ...21650-168 ≣E20It (open) (juniors)
769Denisov Boris (RUS)1987Mukhin Alexey (RUS)17261-061 ≣E20Ch Russia (PODA)07 Nov 2007
180Detthow BoDe Freitas Marcio...0-141 ≣E20Zt
447Diaz Iglesias Jos...2188Dominguez Piris J...16891-031 ≣E20Ch Asturias (team...
115Diez Del Corral J...2415Persitz Raaphi (SUI)23360-180 ≣E20It
720Dimov Kiril (BUL)2213Genov Petar (BUL)24640-138 ≣E20Ch Bulgaria (team)26 Sep 2005
655Ditiatev Sergey (...2385Malinin Vasily B ...24990-140E20It (cat.8)