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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
34Rossolimo Nichola...2450Golombek Harry (ENG)23201-022 ≣E41It
210Biyiasas Peter (USA)2450Ludgate Alan (IRL)22650-155 ≣E20Ch British Columbia
929Maksimovic Branim...2452Milovanovic Srbol...22171-035 ≣E20Ch Central Serbia...07 Jul 2012
373Minzer Claudio Ja...2452Ricardi Pablo (ARG)25131-048 ≣E41It \
94Geller Efim P (RUS)2455Broadbent Reginal...1-044 ≣E20Match \
59Geller Efim P (RUS)2455Lipnitsky Isaak (...1-033 ≣E20Ch URS
32Geller Efim P (RUS)2455Sokolsky Alexey (...0-172 ≣E20Ch URS
105Geller Efim P (RUS)2455Spassky Boris V (...25480-131 ≣E20Ch URS
131Geller Efim P (RUS)2455Kholmov Ratmir D ...24321-034 ≣E20Memorial Przepiorka
85Geller Efim P (RUS)2455Euwe Max (NED)0-126 ≣E41Tournament (candi...
118Geller Efim P (RUS)2455Djurasevic Bozida...1-042 ≣E20Match \
116Geller Efim P (RUS)2455Smyslov Vassily (...24940-156 ≣E20Tournament (candi...
379Forster Richard (...2456Gabriel Christian...24950-151 ≣E20Ch World (juniors...
836Ezat Mohamed (EGY)2459Ameir Moheb (EGY)20881-050 ≣E41Ch Arab Cities29 Oct 2009
51Udovcic Mijo (YUG)2460Puc Stojan (SLO)22550-139E20Ch Yugoslavia
685Le Roux Jean-Pier...2460Bagheri Amir (FRA)24961-020 ≣E41It (cat.11)16 Feb 2004
696Le Roux Jean-Pier...2460Lautier Joel (FRA)26820-125 ≣E41Ch France22 Aug 2004
936Saric Sinisa (SRB)2462Tsakiris Haralamb...22001-046 ≣A40It (open)29 Jul 2012
289McCambridge Vince...2465Frias Victor J (CHI)24931-047 ≣E41It (open)
304McCambridge Vince...2465Contin Daniel (ITA)22301-044 ≣E41Ch World (team) (...
391Hoffmann Michael ...2465Ellers Holger (GER)23700-136 ≣E20Ch Germany (junio...
879Gundavaa Bayarsai...2467Pavlov Sergey (UKR)24771-035 ≣E20It (open) \16 Feb 2011
857Gongora Maikel (CUB)2468Morales Rolando (...22651-042 ≣E41Memorial J.Capabl...16 Jun 2010
766Prohaszka Peter (...2470Rian Kapriaga (INA)20861-033 ≣E20Olympiad (under 16)12 Aug 2007
295Yudasin Leonid (ISR)2470Vilela Jose Luis ...24151-029 ≣E20It (cat.8)
900Siebrecht Sebasti...2471Illijin Neboisa (...21741-069 ≣E41Ch Switzerland (o...12 Jul 2011
332Vokac Marek (CZE)2471Damjanovic Mato (...23030-151 ≣E41It \
597Moskalenko Viktor...2471Campos Moreno Jav...24840-120 ≣E41It (open)
714Bricard Emmanuel ...2474Miezis Normunds (...24701-050 ≣E20It21 Jul 2005
224Shereshevski Mikh...2475Korelov Alexander...23751-045 ≣E41Memorial A.Sokolsky
344Shereshevski Mikh...2475Kveinys Aloyzas (...23451-043 ≣E41Ch URS (1/2 final)
235Shereshevski Mikh...2475Ubilava Elizbar (...25271-040 ≣E41Ch URS (young mas...
882Kornyukov Alexey ...2483Shibaev F (RUS)23450-141 ≣E20Ch Southern FO (o...13 Mar 2011
28Sanguinetti Raul ...2485Szabo Laszlo (HUN)19030-127 ≣E20It
190Popovic Petar (SRB)2485Karaklajic Nikola...23030-135 ≣E20It
309Polgar Zsuzsa (USA)2495Spiridonov Nikola...22391-033 ≣E20It (cat.7)
9Kotov Alexander A...2500Lisitsyn Georgy (...1-033 ≣E41Ch URS
804Gonda Laszlo (HUN)2507Csiszar Csaba (HUN)24371-038 ≣E20It (open)01 Nov 2008
601Moskalenko Viktor...2508Bevia Luis Martin...21731-031 ≣E41It (open)
746Pedersen Nicolai ...2510Barrientos Sergio...24210-133 ≣A17Memorial J.Capabl...26 Nov 2006
658Moskalenko Viktor...2510Flores Enrique1-022 ≣E20It (open)
329Arencibia Walter ...2511Garcia Gonzales G...25101-030 ≣E41Zt
277Kovalev Andrei (BLR)2513Gavrikov Viktor (...23651-043 ≣E20Memorial A.Sokolsky
802Berczes David (HUN)2514Jurek Josef (CZE)23541-054 ≣E41It (open)04 Oct 2008
724Gajewski Grzegorz...2515Heberla Bartlomie...25691-056 ≣E20Ch Poland03 Mar 2006
265Lombardy William ...2520Bradford Joseph M...23801-034 ≣A40It (open)
352Vaisser Anatoly (...2530Oll Lembit (EST)24751-041 ≣E41Cup URS (active)
393Polgar Zsuzsa (USA)2540Granda Zuniga Jul...25651-041 ≣E20It
298Psakhis Lev (ISR)2540Plaskett Jim (ENG)24800-126 ≣E41?
290Dolmatov Sergey (...2540Pinter Jozsef (HUN)25151-038 ≣E20It
288Vyzmanavin Alexey...2540Chernin Alexander...24751-042 ≣E20Ch URS
292Vyzmanavin Alexey...2540Razuvaev Yuri S (...25100-127 ≣E41Ch URS (1 liga)
259Lombardy William ...2540Peters John A (USA)24300-146 ≣E20It (open)
287Vyzmanavin Alexey...2540Beliavsky Alexand...26001-042 ≣E20Ch URS
136Spassky Boris V (...2548Tal Mikhail N (LAT)25200-173 ≣E20Ch URS
36Furman Semen (RUS)2550Arulaid Alexander...1-038 ≣E41Ch URS (1/2 final)
668Moskalenko Viktor...2551Bagheri Amir (FRA)24960-136 ≣E41Ch France (team) ...
935Bosiocic Marin (CRO)2570Fedorchuk Sergey ...26301-050 ≣E20It \21 Jul 2012
800Neverov Valeriy (...2571Constantin David ...20911-046 ≣E41It (open) \13 Sep 2008
835Sedlak Nikola (SRB)2571Van Hoolandt Patr...22331-051 ≣E20Ch Europe (team)23 Oct 2009
774Moskalenko Viktor...2575Escobar Torres An...21301-075 ≣A40It (open) (masters)06 Dec 2007
84Keres Paul (EST)2580Mikkov U1-012 ≣E41Ch Estonia (open)
82Keres Paul (EST)2580Ragozin Viachesla...1-041 ≣E20Tournament
101Petrosian Tigran ...2580Benko Pal C (USA)24081-027 ≣E41Match \
121Polugaevsky Lev A...2585Averbakh Yuri L (...24450-132 ≣E20Ch URS
887Zhao Jun (CHN)2587Xiu Deshun (CHN)25401-031 ≣E20Ch China08 Apr 2011
923Kaidanov Gregory ...2588Gerzhoy Leonid (CAN)24951-047 ≣E41It (open)05 Apr 2012
546Ehlvest Jaan (USA)2610Cladouras Panagio...23901-028 ≣E41It (open) \
758Georgiev Kiril (MKD)2649Socko Bartosz (POL)26461-038 ≣A15Ch Europe (play-o...15 Apr 2007
781Sokolov Ivan (NED)2650Bakker Sven (NED)22321-030 ≣E41Ch Netherlands (t...08 Mar 2008
940Carow Johannes2678Heinz Axel (GER)24021-042 ≣A40Ch Germany (junio...05 Sep 2012
873Jobava Baadur (GEO)2710Shimanov Aleksand...25121-036 ≣E20Ch Europe (active)19 Dec 2010
755Radjabov Teimour ...2742Anand Viswanathan...28010-153 ≣E20It \18 Mar 2007
109Kwapisz StanislawDomanski Jerzy (POL)20901-044 ≣E20Ch Poland
119KunzDudeck1-040 ≣E20Memorial Dyckhoff...
113Alster Ladislav (...Filip F1-046 ≣E20Ch Czechoslovakia...22 Aug 1955
114Rubio Aguado Fern...Reisdoerfer1-030 ≣E20Cup European Club02 Oct 1955
120Dittmann SieghardPuc Stojan (SLO)22550-156 ≣E20It
123Mastichiadis Foti...Weichselbaumer Er...0-150 ≣E20Olympiad11 Sep 1956
125Mastichiadis Foti...O'Riordan Kenneth...1-026 ≣E20Olympiad17 Sep 1956
126KabanovBoleslavsky Isaak...0-134 ≣E20Ch Belarus
128Napolitano Mario ...Batik Frantisek0-112 ≣E41?
132Garcia Balado LShocron Ruben (USA)22590-133 ≣E20Ch Argentina
138Matchett HGTTanfield G1-030 ≣E20Memorial Stevenson
148Owtschinkin GPopp Franz1-041 ≣E41corr.
153Ben Hassan ALund Per (DEN)20150-124 ≣E41Olympiad (student...
293Schuster GuenterWeiler Wolfgang (...21191-019 ≣E20Ch Baden (HT)
163Mileika JanisGipslis Aivars (LAT)24290-134 ≣E20Ch Latvia
167Kristinsson (ISL)Tsagan T (MNG)1-038 ≣E20Olympiad
169Bratcko ICeglar Michael (GER)20000-129 ≣E20Tournament
170Calero I (CUB)Ivkov Borislav (SRB)24160-142 ≣E20Memorial J.Capabl...
172Engerer HansZeitler Hans-Juer...19621-019 ≣E20It (open)
174Machacek Petr (CZE)Blatny Frantisek ...21121-030 ≣E20Memorial Gargulak
177Lagland GoranKuutti Lauri1-030 ≣A17?
178Blazek JosefSorsak Jozef Sr (...21251-044 ≣E20Ch Czechoslovakia...
180Detthow BoDe Freitas Marcio...0-141 ≣E20Zt
187Kasanen JuhaSoom1-017 ≣E20Olympiad (student...
188Cotta EduardoAlves Francisco1-032 ≣E41Ch Brazil
194Tate LSLudgate Alan (IRL)22650-136 ≣E20Ch Great Britain ...
102Alster DKolarov Atanas S ...24150-135 ≣E20It