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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
92Neu AloyseO'kelly De Galway...24600-146 ≣E20Olympiad
429Belcher EdwardFriedman Josef (USA)21860-160 ≣E20It (open)
223Oliva Lobato Pedr...2162Luckis Marcos22700-151 ≣E20It (open)
94Geller Efim P (RUS)2455Broadbent Reginal...1-044 ≣E20Match \
226Garcia Raimundo (...2420Hamann Svend (DEN)24901-041 ≣E20Olympiad
256Garcia Raimundo (...2327Giardelli Sergio ...23151-041 ≣E20Olympiad
59Geller Efim P (RUS)2455Lipnitsky Isaak (...1-033 ≣E20Ch URS
102Alster DKolarov Atanas S ...24150-135 ≣E20It
66Doerner CharlesGerman Eugenio (BRA)23150-164 ≣E20Olympiad
105Geller Efim P (RUS)2455Spassky Boris V (...25480-131 ≣E20Ch URS
106Vladimirov Boris ...2340Kholmov Ratmir D ...24320-141 ≣E20Ch URS (1/2 final)
379Forster Richard (...2456Gabriel Christian...24950-151 ≣E20Ch World (juniors...
55Esposito AlfredoSouza Mendes Joao1-023 ≣E20Zt
109Kwapisz StanislawDomanski Jerzy (POL)20901-044 ≣E20Ch Poland
52Kopaev Nikolay An...Bonch-Osmolovsky ...0-146 ≣E20Ch URS (1/2 final)
119KunzDudeck1-040 ≣E20Memorial Dyckhoff...
113Alster Ladislav (...Filip F1-046 ≣E20Ch Czechoslovakia...22 Aug 1955
114Rubio Aguado Fern...Reisdoerfer1-030 ≣E20Cup European Club02 Oct 1955
48Enevoldsen HaraldPoulsen Christian1-030 ≣E20Ch Denmark (play-...
118Geller Efim P (RUS)2455Djurasevic Bozida...1-042 ≣E20Match \
120Dittmann SieghardPuc Stojan (SLO)22550-156 ≣E20It
121Polugaevsky Lev A...2585Averbakh Yuri L (...24450-132 ≣E20Ch URS
122Rossetto Hector (...2285Toth Vano P17701-037 ≣E20It
123Mastichiadis Foti...Weichselbaumer Er...0-150 ≣E20Olympiad11 Sep 1956
730Voss Chantal (GER)1898Rummer Baerbel13120-150 ≣E20Ch Germany (junio...09 Jun 2006
126KabanovBoleslavsky Isaak...0-134 ≣E20Ch Belarus
87Fragoso DarcyVasconcellos Fern...0-158 ≣E20Ch Brazil
130Vladimirov Boris ...2340Gipslis Aivars (LAT)24290-128 ≣E20Ch URS (1/2 final)
131Geller Efim P (RUS)2455Kholmov Ratmir D ...24321-034 ≣E20Memorial Przepiorka
132Garcia Balado LShocron Ruben (USA)22590-133 ≣E20Ch Argentina
133Shianovsky Vladis...2255Usachyi Mark (UKR)21961-040 ≣E20Ch Kiev
136Spassky Boris V (...2548Tal Mikhail N (LAT)25200-173 ≣E20Ch URS
138Matchett HGTTanfield G1-030 ≣E20Memorial Stevenson
141Lehmann Heinz G (...2285Weise Dietrich1-041 ≣E20Ch BRD
145Toran Albero Roma...2445De Lange Daan1-030 ≣E20Olympiad
146Toran Albero Roma...2445O'Hare E1-031 ≣E20Olympiad
147Wotulo Max A (INA)2245Momo Suren (MGL)0-149 ≣E20Olympiad
765Pak Evgeniy (KAZ)2184Salehian Sina (IRI)20301-064 ≣E20Olympiad (under 16)08 Aug 2007
149Vladimirov Boris ...2340Shamkovich Leonid...23420-125 ≣E20Ch URS
150Gligoric Svetozar...2447Ivkov Borislav (SRB)24161-041 ≣E20It
288Vyzmanavin Alexey...2540Chernin Alexander...24751-042 ≣E20Ch URS
372Fischer Sebastian...2271Beisser Georg20451-045 ≣E20Ch Bayern (2)
515Laimos NikolaosGalanos Dimitrios...19430-142 ≣E20Ch Greece (team)
160Trapl Jindrich (CZE)2336Tolush Alexander ...1-024 ≣E20Ch Europe (team)
161Farias Sergio A (...2220Hollmann Jose0-188 ≣E20Ch Brazil
162Lombardy William ...2435Evans Larry M (USA)24700-142 ≣E20Match
293Schuster GuenterWeiler Wolfgang (...21191-019 ≣E20Ch Baden (HT)
163Mileika JanisGipslis Aivars (LAT)24290-134 ≣E20Ch Latvia
228Sorri Kari Juhani...2251Keeshan M22001-037 ≣E20Olympiad
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...
47Gruber BratoljubDe Stefani Carlo0-139 ≣E20Match \
174Machacek Petr (CZE)Blatny Frantisek ...21121-030 ≣E20Memorial Gargulak
53Perez Perez Franc...Prins Lodewijk (NED)22200-132 ≣E20It
651Kaminik Aleksanda...2266Ruderfer Mark B (...23440-134 ≣E20Ch Israel (team)
45Mastichiadis FotisO'kelly De Galway...24600-141 ≣E20Olympiad
44Mastichiadis FotisEuwe Max (NED)0-134 ≣E20Olympiad
221PopovCarosi1-029 ≣E20corr.
181Piket Joop J (NED)2125Agnes Corrado1-022 ≣E20Ch World (team) (...29 Jul 1964
182Camara Helder (BRA)2347De Freitas Marcio...1-042 ≣E20Ch Brazil
184Piket Joop J (NED)2125Kramer Haije J (NED)23301-038 ≣E20It \
43Castillo Larenas ...O'kelly De Galway...24600-142 ≣E20Olympiad
187Kasanen JuhaSoom1-017 ≣E20Olympiad (student...
729Lockwood William ...1895Spraggett Kevin (...26100-144 ≣E20It (open)22 Apr 2006
189Vadasz Laszlo (HUN)2271Liljedahl Lennart...22821-045 ≣E20Ch Europe (junior...
190Popovic Petar (SRB)2485Karaklajic Nikola...23030-135 ≣E20It
193Kaminik Aleksanda...2168Shmit Anatoly (LAT)22000-132 ≣E20Ch URS (team)
194Tate LSLudgate Alan (IRL)22650-136 ≣E20Ch Great Britain ...
195Mihaljcisin Mihaj...2280Ankerst Marjan (SLO)22101-040 ≣E20?
196Morgado Juan J (ARG)2219Castelli Raul (ARG)21000-130 ≣E20Ch Chess Club
197Litkiewicz Kurt (...2240Maton A1-022 ≣E20Europe Tournament...
41Van't Veer PBarda Olaf (NOR)0-145 ≣E20Ch World (corr.)
688Liascovich Lucas ...2415Arambel Sergio (ARG)22961-042 ≣E20It (open)08 Apr 2004
201Maher VincentHenry Paul (IRL)23750-138 ≣E20Ch Ireland
202Oestreich ReinhardSoelter Reinhold ...20720-149 ≣E20Ch OWL
40Szabo Laszlo (HUN)1903Keres Paul (EST)25800-146 ≣E20Tournament (candi...
204Sikora Jan (CZE)2251Pachman Ludek (GER)22780-134 ≣E20Ch Czechoslovakia
756Steinmacher Josef...2067Zuelle Bruno (SUI)21401-041 ≣E20Ch Baden (b)06 Apr 2007
116Geller Efim P (RUS)2455Smyslov Vassily (...24940-156 ≣E20Tournament (candi...
207Payrhuber KlausBohm Hans (NED)23170-140 ≣E20Ch Europe (juniors)
208Holt EricRomanishin Oleg M...25370-134 ≣E20It (open) (junior...
220Dreesbach HSchafer Rudiger1-038 ≣E20corr.
222Steudtmann Christ...2268Koehler Gerhard (...21431-032 ≣E20It (open)
154Eriksson GHavansi Erkki E T...22230-144 ≣E20Olympiad (student...
213Epelman E GProkopp Heinz1-022 ≣E20Europe Tournament...
230De Carbonnel HeinzKeglevic Pavao (CRO)22030-132 ≣E20Ch Europe (team) ...
35Aratovsky NikolaySokolsky Alexey (...0-145 ≣E20Ch URS (1/2 final)
54Tramoyeres PEnevoldsen Jens (...23500-174 ≣E20It
337Karsa Laszlo (HUN)2346Callergard Robert...23080-136 ≣E20It (open)
925Sutkovic Damir (BIH)2339Smith Bryan G (USA)24500-152 ≣E20It (open)06 May 2012
246Gotzhein HKuehn0-143 ≣E20corr.
387McReamonn BDarby C1-034 ≣E20It (open)
32Geller Efim P (RUS)2455Sokolsky Alexey (...0-172 ≣E20Ch URS
168Kekki YrjoEriksson Lasse1-048 ≣E20?
97Chistiakov Alexan...Lisitsyn Georgy (...1-051 ≣E20Ch URS (team)
78Grynfeld Izaak (POL)Gadalinski Jan (POL)1-036E20Ch Poland17 Oct 1952
528Gruss SManigk Sebastian ...21511-051 ≣E20Bundesliga (junio...
544Stefanek Piotr (POL)2182Kollarik Gorazd (...18731-035 ≣E20Ch Slovakia (team...
642Pfleger Sascha (GER)2214Machenski Jerome ...19771-063 ≣E20It (open)