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Nimzo-Indian, 4.e3, Botvinnik System 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. a3 Bxc3+

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
119Mancini Mario (FRA)2290Chuchelov Vladimi...25400-132 ≣E47It (open)
122Souza Mauro G (BRA)2053Sunye Neto Jaime ...25000-132 ≣E47It (open)
121Souza Mauro G (BRA)2053Borges Leomar Bar...22551-032 ≣E47It (open)
30RumiancevKondratiev Pavel ...0-132 ≣E47Ch URS (team)
63Fradkin Boris (RUS)2445Luther Thomas (GER)25180-133 ≣E47It
126Kapp Martin (GER)2215Pfeiffer Alfred (...21080-133 ≣E47It (open)
209Fernandez Francis...2313L'Ami Erwin (NED)26240-133 ≣E47Olympiad21 Sep 2010
180Kunitson N2104Kulaots Kaido (EST)25470-133 ≣E47Ch Estonia22 Jan 2007
12Moisieev Oleg L (...2385Bondarevsky Igor ...1-033 ≣E47Ch URS (1/2 final)
1Kotov Alexander A...2500Lilienthal Andor ...23851-033 ≣E47
205Roberto JoseCosta Alex1-033 ≣E47Tournament (Elo)30 Mar 2009
149Cetinkaya Vedat A...2058Apaydin Fethi (TUR)20540-133 ≣E47Ch Turkey
175Zakharchenko Arno...2273Kuznetsov Gennady...24161-033 ≣E47Memorial M.Chigor...23 Oct 2005
56Trincardi Tullio ...2235Fabbri Mario (ITA)21800-133 ≣E47?
46Ermenkov Evgenij ...2520Kindermann Stefan...25190-133 ≣E47It (cat.9)
45Enklaar Bertus F ...2395Borm Franciscus W...23851-033 ≣E47It (open)
223Arun Prasad S (IND)2510Swayams Mishra (IND)23931-034 ≣A40Ch India05 Oct 2012
101Santos AndreAkopyan Harutyun ...22250-134 ≣E47Ch World (juniors)
60Zaiatz Elena (RUS)2230Vitolins Alvis (LAT)24150-134 ≣E47Ch URS (1/2 final)
7Kottnauer Cenek (...2370Szabo Laszlo (HUN)19030-134 ≣E47It
4Bozic AlexanderSimonovic Borko1-034 ≣E47Ch Yugoslavia
28Dzindzichashvili ...2550Zaitsev Igor A (RUS)24081-034 ≣E47?
44Ravikumar Vaidyan...2385Martin Andrew D (...24450-134 ≣E47It \
65Lehtosaari Kalevi...2043Ekmark Raimo1-034 ≣A15?
68Lein Anatoly (USA)2485Hjartarson Johann...25050-134 ≣E47Match 4 Teams
84Gebhardt Ulrich (...2225Pinkus Lutz (GER)21700-134 ≣A40It (open)
89Hess Ralf (GER)2319Song Paul (USA)20661-034 ≣E47It (open)
104Milov Vadim (SUI)2565Lautier Joel (FRA)26201-034 ≣E47It (cat.16)
110Mukhaev Alexander...2310Bezukladov O D (RUS)1-034 ≣E47Memorial A.Alekhi...
139Kenney Jason (CAN)2143Pescarus Radu (CAN)19801-034 ≣E47Ch Canada (juniors)
145Andonov Bogomil (...2412Savic Miodrag R (...24640-134 ≣E47Memorial M.Sreibe...
160Goncalves HALebredo Gerardo (...22850-134 ≣E47Cup Itau (open)
168Ludwig Remi (FRA)2097Ollier Pablo (FRA)19701-034 ≣A40Ch France (juniors)
195Werle Jan (NED)2582Kryvoruchko Yuriy...26271-034 ≣E47Ch Europe25 Apr 2008
197Rodrigo Edson (BRA)2038Pinto Renato R Qu...1-034 ≣E47It (open)17 May 2008
210Jelen Igor (SLO)2399Kolaric Spela (SLO)20411-034 ≣E47Ch Slovenia (team...15 Oct 2010
217Szabo Zsolt (HUN)2196Rudolf Anna (HUN)23591-034 ≣A40Ch Hungary (team)...25 Sep 2011
34Reshevsky Samuel ...2490Piesina Gintautas...23900-135 ≣E47It \
147Kaptsan Aron (CAN)2175Baragar Fletcher ...22720-135 ≣E47It (open) \
83Jelen Igor (SLO)2380Roskar Robert (SLO)22901-035 ≣E47It (open)
52Thorsteins Karl (...2469Petursson Margeir...25350-135 ≣E47Ch Iceland
112Akhsharumova Anna...2340Thorfinnsson Brag...21551-035 ≣E47It (open)
198Janda Zdenek (CZE)2161Lechtynsky Jiri (...24410-135 ≣E47It (open)16 Jun 2008
171Jaworski Maciej (...2203Rychlik Hanna (POL)19821-035 ≣E47It (open) (b)22 Aug 2005
17Donner Jan-Hein (...2430O'kelly De Galway...24600-135 ≣E47It
19Sliwa Bogdan (POL)2235Gadalinski Jan (POL)1-035 ≣E47Ch Poland14 Oct 1952
69Hobuss Udo (GER)2393Rechmann Peter (GER)23161-035 ≣E47It (open)
117Ronkko ErkkiEilu Tarmo1-036 ≣E47?
218Gagarin Vasilij (...2417Kachar Vladimir (...22941-036 ≣E47Ch Moscow17 Mar 2012
10Bondarevsky Igor ...Pogats Jozsef (HUN)22301-036 ≣E47It
99Heinimaki Leo (FIN)2072Hermlin Aarne (EST)23350-136 ≣E47It (open)
103Golubovic Zoran (...2289Abramovic Bosko (...24801-036 ≣E47It (open)
25Carvajal JohnnyHumerez Estrada C...1-036 ≣E47Ch Bolivia (match)
73Sadler Matthew (ENG)2440Motwani Paul (SCO)24941-036 ≣A40It (open)
20Pelitov Dimitar (...2165Padevsky Nikola (...23550-136 ≣E47Ch Bulgaria28 Oct 1953
36Krockert E (GER)Drescher Wolfgang0-136 ≣E47corr.
47Pein Malcolm (ENG)2382Morrison Graham (...21491-036 ≣E47It (young masters)
115Wohl Aleksandar H...2400Renet Olivier (FRA)25050-137 ≣E47Olympiad
55Cvitan Ognjen (CRO)2510Prandstetter Edua...22961-037 ≣A40It \
129Indbryn Tommy (NOR)2165Joergensen Finn A1-037 ≣E47Ch Norway (team)
94Wilson Jonathan (...2190Stanton William (...20951-037 ≣E47It (open)
82Kjeldsen Jens (DEN)2375Sax Gyula (HUN)25150-137 ≣E47It \
5Marini LuisLuckis Marcos22700-137 ≣A17Ch Argentina
156Sundararajan Kida...2476Greet Andrew (ENG)23621-037 ≣E47Ch Great Britain
166Lutsko Igor (BLR)2465Azarov Sergei (BLR)25990-137 ≣E47Ch Belarus14 Mar 2005
169Assad Karine (FRA)2054Heinz Timothee (FRA)22530-137 ≣E47Ch France (team) ...02 Apr 2005
159Cebalo Miso (CRO)2520Pavlovic Milos (SRB)24810-137 ≣E47It (open)
127Hurme Harri M (FIN)2258Veingold Aleksand...24850-137 ≣E47Tournament
61Hoi Carsten (DEN)2372Tolnai Tibor (HUN)24700-137 ≣E47It \
53Schlehoefer Ralf ...2312Cladouras Panagio...23700-137 ≣E47Bundesliga 1987/88
213Lutsko Igor (BLR)2345Lomako Pavel (BLR)23920-138 ≣E47Ch Belarus24 Jan 2011
144Riboldi Mario Gar...1688Limp Eduardo (BRA)23840-138 ≣E47Ch Paulista
184Guliev Sarhan (AZE)2487Al-Modiahki Moham...25721-038 ≣E47It (open)29 Apr 2007
136Gulko Boris F (USA)2643Adams Michael (ENG)27550-138 ≣E47It
27Birbrager Isaak (...Uusi Gunnar (EST)0-138 ≣E47Tournament
74Jelen Igor (SLO)2380Kurajica Bojan (CRO)25240-138E47It
141Milov Vadim (SUI)2602Masserey Yvan (SUI)23761-038 ≣E47It (open)
111Milov Vadim (SUI)2565Gerber Richard (SUI)23951-038 ≣E47It (open)
16Fuderer Andrija (...Krzisnik Zvone1-038 ≣E47Ch Yugoslavia
3Euwe Max (NED)Steiner Hermann (...1-038 ≣E47It
51Valiente Cristoba...2350Bammoune Abd'Enna...22801-038 ≣E47Olympiad
132Elsness Frode (NOR)2395Johannessen Leif ...23561-038 ≣A40Ch Norway (team)
179Provotorov Ivan (...2358Benza Artyom (RUS)22950-139 ≣E47Ch Central FO (team)06 Dec 2006
130Khenkin Igor (GER)2600Timoscenko Gennad...24700-139 ≣E47It (open)
66Gausel Einar (NOR)2460Petursson Margeir...25550-139 ≣E47Cup Arnold
105Schaefer Michael ...2210Dautov Rustem (GER)26150-139 ≣E47It (open)
201Peng Zhaoqin (NED)2455Kosteniuk Alexand...25250-139 ≣E47World Mindsports ...05 Oct 2008
173Netusil Miroslav ...2333Srba Milan (CZE)22131-039 ≣A40It (open) \19 Sep 2005
150Romanov Oleg (BLR)2407Jegorovas Aleksan...22751-039 ≣E47It (open)
178Sokolov Ivan (NED)2670Polgar Judit (HUN)27100-139 ≣E47It (cat.20)26 Oct 2006
72Levitt Jonathan (...2420Coste Thierry (FRA)21761-039 ≣E47It (open)
76Bagonyai Attila (...2343Horvath Jozsef M ...21040-139 ≣E47It (open)
191Fuentes Jorge (URU)1913Alcarraz David0-139 ≣E47Memorial Jose Mar...22 Jan 2008
67Suba Mihai (ROM)2520Chandler Murray G...25601-039 ≣E47It (open) \
21Sanguinetti Raul ...2485Wexler Francisco0-140E47Ch Argentina
91Hoffmann Regis (FRA)2097Smagin Sergey (RUS)25400-140 ≣E47It (open)
75Dereviagin Vladis...2320Dokhoian Yury (RUS)25450-140 ≣E47It (open)
32Lev Arieh (ISR)2265Buch Avital0-140 ≣E47Ch Israel
58Hallila EetuYlijoki Marko0-140 ≣E47?
15Sumar Julio (PER)2120Marini Luis0-140 ≣E47Zt