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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
606Russell Corey (USA)2314Gulko Boris F (USA)26430-137 ≣E20Oz.com qualifier ...
758Georgiev Kiril (MKD)2649Socko Bartosz (POL)26461-038 ≣A15Ch Europe (play-o...15 Apr 2007
696Le Roux Jean-Pier...2460Lautier Joel (FRA)26820-125 ≣E41Ch France22 Aug 2004
914Cyra Dariusz (POL)1832Riazantsev Alexan...27100-136 ≣E20Ch Europe (active)17 Dec 2011
865Nielsen John Baun...2148Eljanov Pavel (UKR)27610-140 ≣E20It (open) \01 Aug 2010
755Radjabov Teimour ...2742Anand Viswanathan...28010-153 ≣E20It \18 Mar 2007
702Khattapova Aigul ...1956Ishmurzina Liliya...1-065 ≣E20Ch Privolzhskogo ...
213Epelman E GProkopp Heinz1-022 ≣E20Europe Tournament...
690Willinger TimO'Reilly Gerard0-168 ≣E20It (open)24 Apr 2004
209Muratov Vladimir ...Kacaiev1-031 ≣E41Ch Kazakhstan
99Lloyd Ken2200Van Hoorne1-047 ≣E41Ch World (juniors...
140Sumar Julio (PER)2120Del Pozo Nestor1-054 ≣E20It
533Reduan Aband MohdHisar Simanjuntak0-136 ≣E41Ch World Cities
10Rudakovsky Iosif ...Lisitsyn Georgy (...0-161 ≣E20Ch URS
417Petrov Peter2325Christov I0-133 ≣E20corr.
474Kuta MiroslavVesely Roman1-043 ≣E20It (open)
139Espinoza CarlosPinzon Solis Filipe0-141 ≣E20It
205Piket Joop J (NED)2125Kunnen1-026 ≣E20Ch Netherlands (t...
203Nevole Vladimir (...2051Slizak1-042 ≣E20?
60Ciejka TadeuszBalcarek Wiktor0-162 ≣E41It
69Balanel Ion (ROM)Szabo Stefan1-078E20It
199Skalkotas Nikolao...2178Cabezudo Carlos0-141 ≣A17Ch World (juniors...
198Spodny Josef (CZE)2079Slezacek1-026 ≣A15corr.
246Gotzhein HKuehn0-143 ≣E20corr.
215Holmers EJGibbs Peter C (ENG)1-039 ≣E41corr.
558Seifert Ronny (GER)2011Machner Christian1-031 ≣A40It (open) \
197Litkiewicz Kurt (...2240Maton A1-022 ≣E20Europe Tournament...
188Cotta EduardoAlves Francisco1-032 ≣E41Ch Brazil
187Kasanen JuhaSoom1-017 ≣E20Olympiad (student...
185Lubienski Tadeusz...2033Salminsh Gedimins...0-135 ≣E20Cup Baltic (corr.)
182Camara Helder (BRA)2347De Freitas Marcio...1-042 ≣E20Ch Brazil
181Piket Joop J (NED)2125Agnes Corrado1-022 ≣E20Ch World (team) (...29 Jul 1964
180Detthow BoDe Freitas Marcio...0-141 ≣E20Zt
78Grynfeld Izaak (POL)Gadalinski Jan (POL)1-036E20Ch Poland17 Oct 1952
168Kekki YrjoEriksson Lasse1-048 ≣E20?
124Johannessen Svein...2273Gislason Sigurgei...1-040 ≣E41Olympiad16 Sep 1956
218Cafure EmilioCruz Raul0-125 ≣E20It (open)
220Dreesbach HSchafer Rudiger1-038 ≣E20corr.
221PopovCarosi1-029 ≣E20corr.
177Lagland GoranKuutti Lauri1-030 ≣A17?
167Kristinsson (ISL)Tsagan T (MNG)1-038 ≣E20Olympiad
166Johannessen Svein...2273Filipov F (BUL)1-041 ≣E20Olympiad
234Vehreschild HScheffer G1-023 ≣E20corr.
236Kornath Heinrich ...1901Teichgraber G1-019 ≣E20Europe Tournament...
238Brilla Banfalvi S...Bjorkqvist Armas1-020 ≣E20corr.
241Lim Kok Ann Dr (SIN)2038Sztekel1-041 ≣E20Olympiad
244Kaltofen HSchwanfelder Martin1-022 ≣E20corr.
245Putkonen HeikkiRantanen Veikko0-135 ≣E20?
258Koskinen Erkki (FIN)1952Virtanen Matti1-044 ≣E20?
161Farias Sergio A (...2220Hollmann Jose0-188 ≣E20Ch Brazil
262Vaisanen VeikkoHonkaniemi Raimo1-037 ≣E20?
263Gotzhein HLauer F0-155 ≣E20corr.
266Toth Bela (ITA)2345Olivotto Roberto1-031 ≣E20Ch Italy
160Trapl Jindrich (CZE)2336Tolush Alexander ...1-024 ≣E20Ch Europe (team)
158Iljinsky Yaroslav...2270Rosenfeld Isai K0-166 ≣E20Ch URS (1/2 final)
276Brionne Thierry (...2112Michiels Dirk0-127 ≣E41Ch Europe (juniors)
282Brkusanin DBiukovic Goran (CRO)1-027 ≣E20It (open)
285SchreiberJakimenko A0-138 ≣E20corr.
300SchreiberSchmidt0-132 ≣E20corr.
310Tacu Victor-Mihai...2173Sutton0-132 ≣E20Europe Tournament...
148Owtschinkin GPopp Franz1-041 ≣E41corr.
307Belistri Ubaldo (...2051Vazquez L1-047 ≣E20Ch Uruguay (1/2 f...
308Thompson (USA)Blomquist Gary1-049 ≣E20Ch USA (corr.)
147Wotulo Max A (INA)2245Momo Suren (MGL)0-149 ≣E20Olympiad
311Ehrnrooth JohanPlank Gosta1-029 ≣E41?
146Toran Albero Roma...2445O'Hare E1-031 ≣E20Olympiad
314Mustonen Ilkka (FIN)2030Keravuori Jukka0-135 ≣A15Ch Finland (corr.)
145Toran Albero Roma...2445De Lange Daan1-030 ≣E20Olympiad
141Lehmann Heinz G (...2285Weise Dietrich1-041 ≣E20Ch BRD
138Matchett HGTTanfield G1-030 ≣E20Memorial Stevenson
326Gyorkos Lajos (HUN)2395Barati Laszlo1-049 ≣E20Ch Hungary (open)
328Neubecker ARonczkowski G0-154 ≣A15corr.
330HoltMahdeo1-042 ≣E41corr.
331Hart Theo (GER)1927Gruber W1-025 ≣E20It (open)
345Computer \Computer \0-138 ≣E20Ch Netherlands (c...
350Napolitano Mario ...Bryson0-128 ≣E41corr.
128Napolitano Mario ...Batik Frantisek0-112 ≣E41?
356Siebenhuener Sieg...Fechner Jurgen0-132 ≣A17Ch DDR (corr.)
357LarssonJohansson1-026 ≣E20Cup Nordic (corr.)
358Mustonen VesaWelling Pauli1-054 ≣E20?
126KabanovBoleslavsky Isaak...0-134 ≣E20Ch Belarus
125Mastichiadis Foti...O'Riordan Kenneth...1-026 ≣E20Olympiad17 Sep 1956
123Mastichiadis Foti...Weichselbaumer Er...0-150 ≣E20Olympiad11 Sep 1956
364Schmidt KerstinPirrung Robert0-132 ≣E20Ch BRD (under 25)...
366Computer \Monton1-033 ≣A15Blitz
118Geller Efim P (RUS)2455Djurasevic Bozida...1-042 ≣E20Match \
117Averbakh Yuri L (...2445Rabar Braslav (YUG)1-095 ≣A17Match \
114Rubio Aguado Fern...Reisdoerfer1-030 ≣E20Cup European Club02 Oct 1955
376Clement CCallychurn J1-062 ≣E20Olympiad
82Keres Paul (EST)2580Ragozin Viachesla...1-041 ≣E20Tournament
113Alster Ladislav (...Filip F1-046 ≣E20Ch Czechoslovakia...22 Aug 1955
119KunzDudeck1-040 ≣E20Memorial Dyckhoff...
108Doda Zbigniew (POL)2345Solecki Zbigniew0-134 ≣A17Ch Poland
397Hagstrom AllanKalveus Jan (SWE)1-039 ≣E20Ch Sweden (corr.)
399Blanco Cesar Augu...2105Roldan Manzo Eddy R1-041 ≣E20Ch Guatemala \
400Blanco Cesar Augu...2105Roldan Manzo Eddy R0-139 ≣E20Ch Guatemala (may...
423Bauerle PHaakonstad O1-030 ≣E20Tournament
411Markotic Gordan (...2287Sole E1-026 ≣E41It (open)
420Kozlowski Waldema...2042Bonarek L1-044 ≣E20Ch Poland (corr.)
6Goldstein Maurice...Cornforth John Wa...0-149 ≣E41Ch Australia07 Jan 1937