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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
911Abdel Razik Khale...2423Omorere Benjamin ...22231-043 ≣E41Tournament \10 Sep 2011
395Adler Bo (SWE)2171Backe Peter (SWE)22350-160 ≣E20Ch Sweden (master...
647Ahern JohnKarkanaqe Ilir (ALB)23660-128 ≣E41Cup European Club...
107Ajanski Jordan S ...2350Kolarov Atanas S ...24150-135 ≣E20Ch Bulgaria
453AkopianUtemov Vladimir (...23850-129 ≣E41It (open)
65Aleman Dovo MiguelGonzalez0-136 ≣E41It
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
839Altomonte Giuseppe1773Fiorentino Vincenzo15091-019 ≣E20It (open) (b)05 Jan 2010
838Altomonte Giuseppe1773Ielapi Vito (ITA)18290-150 ≣E20It (open) (b)04 Jan 2010
810Altomonte Giuseppe1743Tricomi Massimo (...18751-037 ≣E20It (open) (b)04 Jan 2009
574Andersen Ejnar (DEN)2111Petersen Steen (DEN)21660-126 ≣E41Tournament
303Anderson AnthonyAlmeida Jose T (POR)21980-142 ≣E41Ch World (team) (...
571Andrade Romo Anib...2034Bastidas Rodrigue...22450-119 ≣E41Tournament \18 Sep 1998
903Andris Valentin1697Klemt Gerhard16071-036E20It \17 Jul 2011
883Anfinogenov Artem...2098Tilicheev Viaches...23890-132 ≣E20Ch Moscow (1/2 fi...17 Mar 2011
320Antunes Antonio (...2410Sartori Spartaco ...21430-194 ≣A40It (b)03 Jan 1986
806Arana Garate Jon ...1917Sanz Perez Eduard...21841-049 ≣A40Tournament (a)29 Nov 2008
35Aratovsky NikolaySokolsky Alexey (...0-145 ≣E20Ch URS (1/2 final)
329Arencibia Walter ...2511Garcia Gonzales G...25101-030 ≣E41Zt
280Asfora Marco (BRA)2219Milos Gilberto (BRA)25970-156 ≣E20Ch Brazil
496Aurich MPfaff Timo0-133 ≣E41Ch Region
173Averbakh Yuri L (...2445Matanovic Aleksan...24900-172 ≣E41Match \
117Averbakh Yuri L (...2445Rabar Braslav (YUG)1-095 ≣A17Match \
70Averbakh Yuri L (...2445Estrin Yakov B (RUS)24500-164 ≣E20Ch Moscow
29Averbakh Yuri L (...2445Kan Ilia Abramovich0-137 ≣E41Memorial N.Riumin
819Avram Veselin (SRB)2134Bodiroga Predrag ...24310-139 ≣E20Cup Vojvodina (team)30 Apr 2009
855Azevedo Eduardo J...1959Palacio Igor Da P...21430-147 ≣E41It (open)04 Jun 2010
405Baez IsidoroSaavedra Juan (CHI)21140-135 ≣E20Tournament (team) \
921Bahzad Zeenaldeen...2118Ares Saber Majeed21421-040 ≣E20Ch Iraq23 Mar 2012
69Balanel Ion (ROM)Szabo Stefan1-078E20It
96Balanel Ion (ROM)Olafsson Fridrik ...24340-148 ≣E41Zt
572Bank Friis Carste...2269Vovk Oksana (DEN)20751-024 ≣E41Ch Denmark (cand.)
269Barbero Gerardo F...2441Panno Oscar (ARG)25400-144 ≣E41It (open)
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
142Baturinsky Victor...Estrin Yakov B (RUS)24500-151 ≣E41Ch URS (corr.)
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...
153Ben Hassan ALund Per (DEN)20150-124 ≣E41Olympiad (student...
23Beni Alfred (AUT)2210Mueller Hans0-149 ≣E20It
88Beni Alfred (AUT)2210O'kelly De Galway...24600-134 ≣A17Olympiad
33Benko Francisco (...2036Bolbochan Julio (...24400-161 ≣E41It
844Benson Oisin P (IRL)2043Murray David (IRL)20391-037 ≣E20It (open)20 Mar 2010
802Berczes David (HUN)2514Jurek Josef (CZE)23541-054 ≣E41It (open)04 Oct 2008
732Berczes David (HUN)2415Kincs Imre (HUN)22401-041 ≣E20It (open)24 Jun 2006
86Berenzon MauricioMangini Jose Thiago0-136 ≣E20Ch Brazil
619Berg Kurt M (NOR)Royset Paal (NOR)22570-170 ≣E41It (open)
821Berkell Peder (SWE)2218Ranby Hans (SWE)19811-029 ≣E20Tournament (Elo)23 May 2009
464Bernardino LOliveira Vera (POR)17151-018 ≣E41Ch Coimbra (team)
425Bern Ivar (NOR)2370Csom Istvan (HUN)24751-043 ≣E41It (open) \
686Bertrand Xavier (...2132Poggioli Guillaume17501-039 ≣A40Ch France (team) ...14 Mar 2004
361Birens Eric-Andre...1969Roos Celine (FRA)21450-169 ≣E20Ch France (qual)
738Birens Eric-Andre...2007Bosman Michiel (NED)23390-134E20Cup European Club11 Oct 2006
362Birens Eric-Andre...1969Stawiarski Edmond...21680-140 ≣E20Ch France (qual)
381Birens Eric-Andre...1969Sonntag Hans-Hube...23850-150 ≣E20It (open)
401Birens Eric-Andre...1969Tjiam Dharma (NED)23820-159 ≣E20It (open)
825Bisaro Andrea (ITA)1702Pillon Giovanni P...18900-146 ≣E41Tournament (open)07 Jul 2009
826Bisaro Andrea (ITA)1702Del Forno Sinicco...17851-041 ≣E41Tournament (open)11 Jul 2009
210Biyiasas Peter (USA)2450Ludgate Alan (IRL)22650-155 ≣E20Ch British Columbia
757Blackburn Joathan...2228Rees Ioan (WLS)22730-131 ≣E20Ch Wales07 Apr 2007
799Blackburn Joathan...2175Campbell Ian (ENG)20311-035 ≣E20Ch European Union12 Sep 2008
400Blanco Cesar Augu...2105Roldan Manzo Eddy R0-139 ≣E20Ch Guatemala (may...
399Blanco Cesar Augu...2105Roldan Manzo Eddy R1-041 ≣E20Ch Guatemala \
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
31Bolbochan Jacobo ...Luckis Marcos22700-159 ≣E41It
76Boleslawski ZbigniewGadalinski Jan (POL)0-151 ≣E20Ch Poland11 Oct 1952
77Boleslawski ZbigniewGawlikowski Stani...1-051 ≣E20Ch Poland17 Oct 1952
248Bonilla JoseTikkanen Kari (FIN)22600-121 ≣A17Ch World (juniors...
375Borici Ylvije (ALB)Mills Natalie (AUS)20290-141 ≣E20Olympiad
46Borisenko Georgy ...2354Sokolsky Alexey (...1-057 ≣E20Ch URS
448Borovicka Bohumil...1997Michenka Jozef (CZE)23460-140 ≣E41It (open)
378Borulya Ekaterina...2308Tsiganova Monika ...21730-145 ≣E41Ch URS (w)
250Bosco Ricardo (ARG)2142Giudici Ernesto (...22801-048 ≣E41Tournament
935Bosiocic Marin (CRO)2570Fedorchuk Sergey ...26301-050 ≣E20It \21 Jul 2012
603Boskovic Martin (...1999Siegmund Rainer (...21430-128 ≣E41It (open)
617Boteanu Jean (ROM)2105Zarnescu Marius (...18440-136 ≣E20Ch Romania (1/2 f...
431Boudin NUlveling Jacques ...21610-151 ≣A17It (open)
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
275Brionne Thierry (...2112Borg Geoffrey (MLT)23670-127 ≣E41Ch Europe (juniors)
276Brionne Thierry (...2112Michiels Dirk0-127 ≣E41Ch Europe (juniors)
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