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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
254Siff Boris2230Peters John A (USA)23700-124 ≣E20?
391Hoffmann Michael ...2465Ellers Holger (GER)23700-136 ≣E20Ch Germany (junio...
201Maher VincentHenry Paul (IRL)23750-138 ≣E20Ch Ireland
654Marquez Molina Jo...Lorenzini Martin ...23750-126 ≣E20It (open)
368Santos Carlos P (...2404Martin Benjamin (...23751-039 ≣E20Ch World (juniors...
659Ganaus Hannes (AUT)2360Danner Georg (AUT)23771-075 ≣E20Memorial Poyntner...
830Khachatryan Vahag...2278Polivanov Anatoli...23821-036 ≣E20It (open)12 Sep 2009
401Birens Eric-Andre...1969Tjiam Dharma (NED)23820-159 ≣E20It (open)
381Birens Eric-Andre...1969Sonntag Hans-Hube...23850-150 ≣E20It (open)
353Negro Roberto1900Vehi Bach Victor ...23851-029 ≣E20It (open)
704Nikolaeva Alexand...2133Abrashkin Boris (...23880-131 ≣E20Ch PriFO11 Dec 2004
371Pavlovic Slobodan...2159Govedarica Radova...23890-130 ≣E20Ch Yugoslavia (te...
715Shevchenko Tanya ...2157Biriukov Oleg V (...23890-143 ≣E20It (open) (a)22 Jul 2005
883Anfinogenov Artem...2098Tilicheev Viaches...23890-132 ≣E20Ch Moscow (1/2 fi...17 Mar 2011
941Edirisinghe Dulan...2046Meshkov Yuri A (RUS)23900-170 ≣E20Olympiad05 Sep 2012
498Garneli EvageliaKalesis Nikolaos ...23900-123 ≣E20It (open)
302Karsa Laszlo (HUN)2346Rajna George (ISR)23901-025 ≣E20It (open)
798Khachatryan Vahag...2283Grekh Andrey (UKR)23911-043 ≣E20Memorial E.Geller...11 Sep 2008
325Schlenga KlausPliester Leon (NED)23920-137 ≣E20Ch Netherlands (o...
666Pages Rafart Jord...2120Fluvia Jordi (ESP)23940-151 ≣E20It (open)
589Karner Christoph ...2181Medvegy Zoltan (HUN)23970-125 ≣E20Ch Europe (junior...
491Liardet Fabrice (...2360Anka Emil (HUN)24001-032 ≣E20It (open)
646Dufeal Julien (FRA)2141Grooten Herman (NED)24080-110 ≣E20It (open)
767Wohlers-Armas Fri...2141Collas Silvia (FRA)24080-133 ≣E20Ch France (w)15 Aug 2007
37Spanjaard EduardVan Den Berg Care...24100-118 ≣E20Ch Netherlands
295Yudasin Leonid (ISR)2470Vilela Jose Luis ...24151-029 ≣E20It (cat.8)
102Alster DKolarov Atanas S ...24150-135 ≣E20It
107Ajanski Jordan S ...2350Kolarov Atanas S ...24150-135 ≣E20Ch Bulgaria
150Gligoric Svetozar...2447Ivkov Borislav (SRB)24161-041 ≣E20It
170Calero I (CUB)Ivkov Borislav (SRB)24160-142 ≣E20Memorial J.Capabl...
792Johansson Alexand...2022Blomqvist Erik (SWE)24180-123 ≣E20Ch Sweden (juniors)11 Jul 2008
313Knoppert Erik G J...2336Riemersma Liafber...24200-151 ≣E20Ch Netherlands (1...
255Niklasson Christe...2350Kaiszauri Konstan...24200-131 ≣E20?
264Niklasson Christe...2385Schneider Lars-Ak...24200-134 ≣E20It
689Garcia Galeote Lo...2124Minzer Claudio Ja...24240-126 ≣E20It (open)09 Apr 2004
268Weber Robert1Gerusel Mathias (...24251-064 ≣E20It
918Sipos Istvan (HUN)2447Csom Istvan (HUN)24261-027 ≣E20Ch Hungary (team)...19 Feb 2012
850Veleski Robert (MKD)2282Cioara Andrei Nes...24260-143 ≣E20It (open) \21 Apr 2010
130Vladimirov Boris ...2340Gipslis Aivars (LAT)24290-128 ≣E20Ch URS (1/2 final)
281Haik Aldo (FRA)2405Murey Jacob (ISR)24290-148 ≣E20It (open)10 Sep 1981
163Mileika JanisGipslis Aivars (LAT)24290-134 ≣E20Ch Latvia
560Durao Pedro (POR)2138Damaso Rui (POR)24300-124 ≣E20It (young masters)
259Lombardy William ...2540Peters John A (USA)24300-146 ≣E20It (open)
819Avram Veselin (SRB)2134Bodiroga Predrag ...24310-139 ≣E20Cup Vojvodina (team)30 Apr 2009
106Vladimirov Boris ...2340Kholmov Ratmir D ...24320-141 ≣E20Ch URS (1/2 final)
131Geller Efim P (RUS)2455Kholmov Ratmir D ...24321-034 ≣E20Memorial Przepiorka
91Milev Zdravko (BUL)2230Olafsson Fridrik ...24340-131 ≣E20Olympiad
804Gonda Laszlo (HUN)2507Csiszar Csaba (HUN)24371-038 ≣E20It (open)01 Nov 2008
672Mesko Andrej (CRO)2067Saric Ante (CRO)24370-130 ≣E20Ch Croatia (junio...
854Chen Yun (CHN)2181Li Wenliang (CHN)24410-152 ≣E20Tournament \18 May 2010
121Polugaevsky Lev A...2585Averbakh Yuri L (...24450-132 ≣E20Ch URS
811Schwarz Dusan (SVK)2303Hausner Ivan (CZE)24460-140 ≣E20Extraliga 2008/0918 Jan 2009
68Pafnutieff VladimirGligoric Svetozar...24470-118 ≣E20It
925Sutkovic Damir (BIH)2339Smith Bryan G (USA)24500-152 ≣E20It (open)06 May 2012
484Vigh Bela (HUN)2355Polak Tomas (CZE)24500-129 ≣E20It (open)
70Averbakh Yuri L (...2445Estrin Yakov B (RUS)24500-164 ≣E20Ch Moscow
731Kende Gyorgy (HUN)2211Horvath Peter_ (HUN)24510-130 ≣E20It (open)20 Jun 2006
768Foisor Mihaela-Ve...2029Landenbergue Clau...24520-157 ≣E20It (open)14 Sep 2007
469Zawadski Stephane...2181Marciano David (FRA)24550-154 ≣E20Ch France (team)
43Castillo Larenas ...O'kelly De Galway...24600-142 ≣E20Olympiad
45Mastichiadis FotisO'kelly De Galway...24600-141 ≣E20Olympiad
27Olivera AlfredoO'kelly De Galway...24601-042 ≣E20It
92Neu AloyseO'kelly De Galway...24600-146 ≣E20Olympiad
720Dimov Kiril (BUL)2213Genov Petar (BUL)24640-138 ≣E20Ch Bulgaria (team)26 Sep 2005
714Bricard Emmanuel ...2474Miezis Normunds (...24701-050 ≣E20It21 Jul 2005
279Haik Aldo (FRA)2405Van Der Wiel John...24700-169 ≣E20It (b)
162Lombardy William ...2435Evans Larry M (USA)24700-142 ≣E20Match
673Mafra Kaiser Luiz...2140Zambrana Oswaldo ...24720-125 ≣E20Cup Itau (open)
532Dang V Dung (VIE)2138Zagrebelny Sergey...24750-130 ≣E20Ch World Cities
288Vyzmanavin Alexey...2540Chernin Alexander...24751-042 ≣E20Ch URS
718Lapshun Yury (USA)2445Berczes David (HUN)24750-134 ≣E20It (cat.8)07 Aug 2005
536Liardet Fabrice (...2380Ekstroem Roland (...24750-162 ≣E20It (open)
879Gundavaa Bayarsai...2467Pavlov Sergey (UKR)24771-035 ≣E20It (open) \16 Feb 2011
284Karpeshov Oleg (RUS)2384Ehlvest Jaan (USA)24801-040 ≣E20Ch URS (1/2 final)
760Sacchini Marco (ITA)2150Orlov Andrey (RUS)24810-148 ≣E20It (open)14 Jun 2007
649Kaminik Aleksanda...2266Manor Ilan (ISR)24830-137 ≣E20Ch Israel (team)
432Tourneur Jean-Fra...2223Solozhenkin Evgen...24890-127 ≣E20It (open)
737Kaminik Aleksanda...2251Cebalo Miso (CRO)24890-138 ≣E20Ch World (seniors)12 Sep 2006
226Garcia Raimundo (...2420Hamann Svend (DEN)24901-041 ≣E20Olympiad
49Donner Jan-Hein (...2430Matanovic Aleksan...24900-142 ≣E20Zt
650Kaminik Aleksanda...2266Postny Evgeny (ISR)24940-157 ≣E20Ch Israel (team)
116Geller Efim P (RUS)2455Smyslov Vassily (...24940-156 ≣E20Tournament (candi...
39Bronstein David I...2432Smyslov Vassily (...24941-058 ≣E20Tournament (candi...
456Malo Guillen Jose...2189Kolev Atanas (BUL)24950-157 ≣E20It (open) \
379Forster Richard (...2456Gabriel Christian...24950-151 ≣E20Ch World (juniors...
706Niklasson Christe...2375Brynell Stellan (...24960-128 ≣E20Ch Sweden (team) ...26 Feb 2005
655Ditiatev Sergey (...2385Malinin Vasily B ...24990-140E20It (cat.8)
873Jobava Baadur (GEO)2710Shimanov Aleksand...25121-036 ≣E20Ch Europe (active)19 Dec 2010
809Iglesias Joachim ...2178Riff Jean-Noel (FRA)25121-033 ≣E20It (open)26 Dec 2008
290Dolmatov Sergey (...2540Pinter Jozsef (HUN)25151-038 ≣E20It
523Liardet Fabrice (...2380Zhu Chen (QAT)25151-041 ≣E20It (open)
497Jetzl Joerg (AUT)2203Farago Ivan (HUN)25150-148 ≣E20It (open)
136Spassky Boris V (...2548Tal Mikhail N (LAT)25200-173 ≣E20Ch URS
710Van Elst Andreas ...2282Charnushevich Ale...25210-129 ≣E20Ch France (team) ...08 May 2005
208Holt EricRomanishin Oleg M...25370-134 ≣E20It (open) (junior...
887Zhao Jun (CHN)2587Xiu Deshun (CHN)25401-031 ≣E20Ch China08 Apr 2011
318PoschustaHort Vlastimil (GER)25450-136 ≣E20It (open)
639Kaminik Aleksanda...2245Zifroni Dov (ISR)25480-140 ≣E20Memorial V.Liberz...
105Geller Efim P (RUS)2455Spassky Boris V (...25480-131 ≣E20Ch URS
789Rawicz Karol (POL)2242Kravtsiv Martyn (...25490-128 ≣E20It (open)25 Jun 2008