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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
7Klein Ernst LudwigEuwe Max (NED)0-161 ≣E20It
10Rudakovsky Iosif ...Lisitsyn Georgy (...0-161 ≣E20Ch URS
11Stolberg Mark (RUS)Lisitsyn Georgy (...0-149 ≣E20Ch URS
12Cruz Walter Oswal...De Souza Mendes J...1-035 ≣E20Ch Brazil (qual)
13Nuernberg FriedrichMuller Hans (AUT)0-134 ≣E20Ch Germany
14Reshevsky Samuel ...2430Denker Arnold S (...22931-045 ≣E20Ch USA
15Reshevsky Samuel ...2430Levin Jacob1-039 ≣E20Ch USA
20Lisitsyn Georgy (...Sokolsky Alexey (...1-031 ≣E20Ch URS (1/2 final)
23Beni Alfred (AUT)2210Mueller Hans0-149 ≣E20It
26Olivera AlfredoLuckis Marcos22700-167 ≣E20It
27Olivera AlfredoO'kelly De Galway...24601-042 ≣E20It
28Sanguinetti Raul ...2485Szabo Laszlo (HUN)19030-127 ≣E20It
32Geller Efim P (RUS)2455Sokolsky Alexey (...0-172 ≣E20Ch URS
35Aratovsky NikolaySokolsky Alexey (...0-145 ≣E20Ch URS (1/2 final)
37Spanjaard EduardVan Den Berg Care...24100-118 ≣E20Ch Netherlands
39Bronstein David I...2432Smyslov Vassily (...24941-058 ≣E20Tournament (candi...
40Szabo Laszlo (HUN)1903Keres Paul (EST)25800-146 ≣E20Tournament (candi...
41Van't Veer PBarda Olaf (NOR)0-145 ≣E20Ch World (corr.)
43Castillo Larenas ...O'kelly De Galway...24600-142 ≣E20Olympiad
44Mastichiadis FotisEuwe Max (NED)0-134 ≣E20Olympiad
45Mastichiadis FotisO'kelly De Galway...24600-141 ≣E20Olympiad
46Borisenko Georgy ...2354Sokolsky Alexey (...1-057 ≣E20Ch URS
47Gruber BratoljubDe Stefani Carlo0-139 ≣E20Match \
48Enevoldsen HaraldPoulsen Christian1-030 ≣E20Ch Denmark (play-...
49Donner Jan-Hein (...2430Matanovic Aleksan...24900-142 ≣E20Zt
50Szabo Laszlo (HUN)1903Laszlo C (HUN)1-029 ≣E20Ch Hungary
51Udovcic Mijo (YUG)2460Puc Stojan (SLO)22550-139E20Ch Yugoslavia
52Kopaev Nikolay An...Bonch-Osmolovsky ...0-146 ≣E20Ch URS (1/2 final)
53Perez Perez Franc...Prins Lodewijk (NED)22200-132 ≣E20It
54Tramoyeres PEnevoldsen Jens (...23500-174 ≣E20It
55Esposito AlfredoSouza Mendes Joao1-023 ≣E20Zt
56Rossetto Hector (...2285Vasconcellos Fern...1-042 ≣E20Zt
59Geller Efim P (RUS)2455Lipnitsky Isaak (...1-033 ≣E20Ch URS
62Huguet HGaribaldi Oscar (...1-020 ≣E20Ch Argentina
63Huguet HLuckis Marcos22701-031 ≣E20Ch Argentina
64Wise TNewman RH18151-024 ≣E20Ch Great Britain
66Doerner CharlesGerman Eugenio (BRA)23150-164 ≣E20Olympiad
68Pafnutieff VladimirGligoric Svetozar...24470-118 ≣E20It
69Balanel Ion (ROM)Szabo Stefan1-078E20It
70Averbakh Yuri L (...2445Estrin Yakov B (RUS)24500-164 ≣E20Ch Moscow
74Lima EdmundoPaiva Omar0-139 ≣E20Ch Brazil
75Santiago Oliveira...Paiva Omar0-136 ≣E20Ch Brazil
76Boleslawski ZbigniewGadalinski Jan (POL)0-151 ≣E20Ch Poland11 Oct 1952
77Boleslawski ZbigniewGawlikowski Stani...1-051 ≣E20Ch Poland17 Oct 1952
78Grynfeld Izaak (POL)Gadalinski Jan (POL)1-036E20Ch Poland17 Oct 1952
79Gawlikowski Stani...Gadalinski Jan (POL)0-132 ≣E20Ch Poland27 Oct 1952
80Kan Ilya A (RUS)Botvinnik Mikhail...23070-136 ≣E20Match (training)
81Szabo Laszlo (HUN)1903Sliwa Bogdan (POL)22350-143 ≣E20It
82Keres Paul (EST)2580Ragozin Viachesla...1-041 ≣E20Tournament
86Berenzon MauricioMangini Jose Thiago0-136 ≣E20Ch Brazil
87Fragoso DarcyVasconcellos Fern...0-158 ≣E20Ch Brazil
89Kelly TAnderson Frank R ...0-122 ≣E20Olympiad
91Milev Zdravko (BUL)2230Olafsson Fridrik ...24340-131 ≣E20Olympiad
92Neu AloyseO'kelly De Galway...24600-146 ≣E20Olympiad
94Geller Efim P (RUS)2455Broadbent Reginal...1-044 ≣E20Match \
97Chistiakov Alexan...Lisitsyn Georgy (...1-051 ≣E20Ch URS (team)
102Alster DKolarov Atanas S ...24150-135 ≣E20It
105Geller Efim P (RUS)2455Spassky Boris V (...25480-131 ≣E20Ch URS
106Vladimirov Boris ...2340Kholmov Ratmir D ...24320-141 ≣E20Ch URS (1/2 final)
107Ajanski Jordan S ...2350Kolarov Atanas S ...24150-135 ≣E20Ch Bulgaria
109Kwapisz StanislawDomanski Jerzy (POL)20901-044 ≣E20Ch Poland
110Kwapisz StanislawSliwa Bogdan (POL)22351-040 ≣E20Ch Poland
111Kwapisz StanislawSolecki Zbigniew0-177 ≣E20Ch Poland
112Szapiro GSolecki Zbigniew1-018 ≣E20Ch Poland
113Alster Ladislav (...Filip F1-046 ≣E20Ch Czechoslovakia...22 Aug 1955
114Rubio Aguado Fern...Reisdoerfer1-030 ≣E20Cup European Club02 Oct 1955
115Diez Del Corral J...2415Persitz Raaphi (SUI)23360-180 ≣E20It
116Geller Efim P (RUS)2455Smyslov Vassily (...24940-156 ≣E20Tournament (candi...
118Geller Efim P (RUS)2455Djurasevic Bozida...1-042 ≣E20Match \
119KunzDudeck1-040 ≣E20Memorial Dyckhoff...
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
125Mastichiadis Foti...O'Riordan Kenneth...1-026 ≣E20Olympiad17 Sep 1956
126KabanovBoleslavsky Isaak...0-134 ≣E20Ch Belarus
127Esposito AlfredoPiro A1-035 ≣E20Tournament
129Shamkovich Leonid...2342Tolush Alexander ...1-050 ≣E20Ch URS (1/2 final)
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
137Kunz HorstDorawa Bernhard (...19820-159 ≣E20Ch DDR
138Matchett HGTTanfield G1-030 ≣E20Memorial Stevenson
139Espinoza CarlosPinzon Solis Filipe0-141 ≣E20It
140Sumar Julio (PER)2120Del Pozo Nestor1-054 ≣E20It
141Lehmann Heinz G (...2285Weise Dietrich1-041 ≣E20Ch BRD
143Maska JWolff H20001-039 ≣E20Europe Tournament...
144GolschmanGonzales Gil J0-133 ≣E20Tournament
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
149Vladimirov Boris ...2340Shamkovich Leonid...23420-125 ≣E20Ch URS
150Gligoric Svetozar...2447Ivkov Borislav (SRB)24161-041 ≣E20It
152Robatsch Karl (AUT)2349Pachman Ludek (GER)22780-129 ≣E20It
154Eriksson GHavansi Erkki E T...22230-144 ≣E20Olympiad (student...
155Taieb AKuijpers Frans A ...22800-136 ≣E20Olympiad (student...
156Trapl Jindrich (CZE)2336Marsalek Josef (CZE)20711-025 ≣E20Ch Czechoslovakia
158Iljinsky Yaroslav...2270Rosenfeld Isai K0-166 ≣E20Ch URS (1/2 final)