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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
54Gulko Boris F (USA)2565Koepcke1-030 ≣E47It \
210Jelen Igor (SLO)2399Kolaric Spela (SLO)20411-034 ≣E47Ch Slovenia (team...15 Oct 2010
192Vashchenko Jurij ...2016Komissarov Stanis...20001-024 ≣E47It (open) (b)07 Feb 2008
30RumiancevKondratiev Pavel ...0-132 ≣E47Ch URS (team)
201Peng Zhaoqin (NED)2455Kosteniuk Alexand...25250-139 ≣E47World Mindsports ...05 Oct 2008
206Ollier Pablo (FRA)2226Krejci Jan (CZE)17190-121 ≣E47Ch Europe (junior...04 Sep 2009
172Serna Lara Sergio...2191Krug Cortegoso Ma...21511-024 ≣E47It (open)05 Sep 2005
195Werle Jan (NED)2582Kryvoruchko Yuriy...26271-034 ≣E47Ch Europe25 Apr 2008
16Fuderer Andrija (...Krzisnik Zvone1-038 ≣E47Ch Yugoslavia
180Kunitson N2104Kulaots Kaido (EST)25470-133 ≣E47Ch Estonia22 Jan 2007
74Jelen Igor (SLO)2380Kurajica Bojan (CRO)25240-138E47It
185Golovlev Nikolay ...2320Kurochkin Valery ...21451-030 ≣E47It \
164Kovacevic Blazimi...2503Kutuzovic Branko ...23690-129 ≣E47It (open)16 Dec 2004
175Zakharchenko Arno...2273Kuznetsov Gennady...24161-033 ≣E47Memorial M.Chigor...23 Oct 2005
92Levitt Jonathan (...2425Kveinys Aloyzas (...25101-030 ≣E47It
209Fernandez Francis...2313L'Ami Erwin (NED)26240-133 ≣E47Olympiad21 Sep 2010
64Riemersma Liafber...2420Langeweg Kick (NED)23650-127 ≣E47It (c)
100Roobol Martin (NED)2325Langeweg Kick (NED)23751-026 ≣E47Ch Netherlands (t...
48Hansen Curt (DEN)2500Larsen Bent (DEN)25650-140 ≣E47?
120Kupreichik Viktor...2500Lau Ralf (GER)24950-125 ≣E47It (open)
104Milov Vadim (SUI)2565Lautier Joel (FRA)26201-034 ≣E47It (cat.16)
176Korchnoi Viktor (...2607Lautier Joel (FRA)26561-040 ≣E47Memorial E.Geller...04 Jul 2006
160Goncalves HALebredo Gerardo (...22850-134 ≣E47Cup Itau (open)
165Gehlert Klaus (GER)2251Lechleitner Walter19771-032 ≣A40Bayern Regionalli...13 Feb 2005
198Janda Zdenek (CZE)2161Lechtynsky Jiri (...24410-135 ≣E47It (open)16 Jun 2008
1Kotov Alexander A...2500Lilienthal Andor ...23851-033 ≣E47
144Riboldi Mario Gar...1688Limp Eduardo (BRA)23840-138 ≣E47Ch Paulista
87Gulko Boris F (USA)2635Lobron Eric (GER)25751-031 ≣E47Ch World (qual) (...
213Lutsko Igor (BLR)2345Lomako Pavel (BLR)23920-138 ≣E47Ch Belarus24 Jan 2011
199Swiech Przemyslaw...1448Lorek Milosz (POL)19281-022 ≣E47Tournament (juniors)15 Sep 2008
5Marini LuisLuckis Marcos22700-137 ≣A17Ch Argentina
63Fradkin Boris (RUS)2445Luther Thomas (GER)25180-133 ≣E47It
187Pevzner Lev (RUS)2395Lysyj Igor (RUS)25910-128 ≣E47Ch Russia (Higher...14 Sep 2007
14Andric DragoslavMajstorovic Ljubomir0-129 ≣E47Ch Yugoslavia
15Sumar Julio (PER)2120Marini Luis0-140 ≣E47Zt
162Lasanta Rica Cesa...2305Marin Tolosa Guil...19261-032E47It (open) (c)
44Ravikumar Vaidyan...2385Martin Andrew D (...24450-134 ≣E47It \
141Milov Vadim (SUI)2602Masserey Yvan (SUI)23761-038 ≣E47It (open)
174Rendboe John (DEN)2245Michalczak Thomas...23860-131 ≣E47It (b)15 Oct 2005
188Sokolov Ivan (NED)2673Miroshnichenko Ev...26511-040 ≣E47Cup European Club08 Oct 2007
47Pein Malcolm (ENG)2382Morrison Graham (...21491-036 ≣E47It (young masters)
26Minev Nikolay N (...2370Mosen (TUN)1-022 ≣E47Olympiad
73Sadler Matthew (ENG)2440Motwani Paul (SCO)24941-036 ≣A40It (open)
49Pyrich George (SCO)2014Muir Andrew J (SCO)23110-131 ≣E47Ch Scotland
124Aliev Tchingiz (AZE)Mutton Jonathan (...21890-117 ≣E47Ch Europe (junior...
37Hoi Carsten (DEN)2355Niklasson Christe...23850-129 ≣E47It
50KrnicnujNoseda JM0-125 ≣E47Cup Latin (corr.)
17Donner Jan-Hein (...2430O'kelly De Galway...24600-135 ≣E47It
168Ludwig Remi (FRA)2097Ollier Pablo (FRA)19701-034 ≣A40Ch France (juniors)
215Gajewski Grzegorz...2607Pacher Milan (SVK)24031-029 ≣E47It (open)13 Apr 2011
20Pelitov Dimitar (...2165Padevsky Nikola (...23550-136 ≣E47Ch Bulgaria28 Oct 1953
221Gerzhoy Leonid (CAN)2459Panjwani Raja (CAN)23921-029 ≣E47Ch Quebec (invita...26 Jul 2012
159Cebalo Miso (CRO)2520Pavlovic Milos (SRB)24810-137 ≣E47It (open)
139Kenney Jason (CAN)2143Pescarus Radu (CAN)19801-034 ≣E47Ch Canada (juniors)
66Gausel Einar (NOR)2460Petursson Margeir...25550-139 ≣E47Cup Arnold
52Thorsteins Karl (...2469Petursson Margeir...25350-135 ≣E47Ch Iceland
202Inkiov Ventzislav...2455Peyre Camille (FRA)18501-040 ≣E47It (open)29 Oct 2008
126Kapp Martin (GER)2215Pfeiffer Alfred (...21080-133 ≣E47It (open)
34Reshevsky Samuel ...2490Piesina Gintautas...23900-135 ≣E47It \
84Gebhardt Ulrich (...2225Pinkus Lutz (GER)21700-134 ≣A40It (open)
197Rodrigo Edson (BRA)2038Pinto Renato R Qu...1-034 ≣E47It (open)17 May 2008
78Konings Leon (NED)2240Pliester Leon (NED)23450-124 ≣E47Ch Netherlands (q...
10Bondarevsky Igor ...Pogats Jozsef (HUN)22301-036 ≣E47It
90Sanchez Gavilan MPogorelov Ruslan ...24000-132 ≣E47It (open)
38Hoi Carsten (DEN)2415Pokojowczyk Jerzy...23901-029 ≣E47It (open)
178Sokolov Ivan (NED)2670Polgar Judit (HUN)27100-139 ≣E47It (cat.20)26 Oct 2006
214Foisor Mihaela-Ve...2205Porcoleanu D18111-023 ≣E47Ch Romania (w)12 Feb 2011
55Cvitan Ognjen (CRO)2510Prandstetter Edua...22961-037 ≣A40It \
216Starcic Tadej (SLO)2091Pregarac Valter (...21050-140 ≣A40It (open)15 Aug 2011
69Hobuss Udo (GER)2393Rechmann Peter (GER)23161-035 ≣E47It (open)
115Wohl Aleksandar H...2400Renet Olivier (FRA)25050-137 ≣E47Olympiad
161De La Rocha Ramon...2320Roche Simon Migue...21781-024 ≣E47It (open) (c)
83Jelen Igor (SLO)2380Roskar Robert (SLO)22901-035 ≣E47It (open)
113Milov Vadim (SUI)2565Rozentalis Eduard...26100-140 ≣A40It (open)
217Szabo Zsolt (HUN)2196Rudolf Anna (HUN)23591-034 ≣A40Ch Hungary (team)...25 Sep 2011
128Hole TerrenceRuggeri Laderchi ...0-122 ≣E47?
171Jaworski Maciej (...2203Rychlik Hanna (POL)19821-035 ≣E47It (open) (b)22 Aug 2005
151Hoi Carsten (DEN)2406Sanchez Martin Va...21051-029 ≣A40It (open) \
145Andonov Bogomil (...2412Savic Miodrag R (...24640-134 ≣E47Memorial M.Sreibe...
82Kjeldsen Jens (DEN)2375Sax Gyula (HUN)25150-137 ≣E47It \
134Ploehn Heiko2165Scheipl Ralf (GER)22680-124 ≣E47Bayern Regionalli...
97Gehlert Klaus (GER)2270Scheringer Dietrich20101-027 ≣A40Bayern Regionalli...
80Seywald RalfSchwarzkopf Ralf17451-023 ≣E47It (open)
102Winning Graham (SCO)2080Shaw Kevin F1-027 ≣A40It (open) \
57Greenfeld Alon (ISR)2550Shrentzel Israel ...23851-026 ≣E47It (cat.10)
85Thorfinnsson Brag...2427Simila V1-031E47Ch Scandinavia (s...
4Bozic AlexanderSimonovic Borko1-034 ≣E47Ch Yugoslavia
29Filip Miroslav (CZE)2465Skold Kristian (SWE)23401-040 ≣E47Ch Europe (team) ...
91Hoffmann Regis (FRA)2097Smagin Sergey (RUS)25400-140 ≣E47It (open)
89Hess Ralf (GER)2319Song Paul (USA)20661-034 ≣E47It (open)
43Condie Mark L (SCO)2360Speelman Jonathan...25000-132 ≣E47Zt
173Netusil Miroslav ...2333Srba Milan (CZE)22131-039 ≣A40It (open) \19 Sep 2005
94Wilson Jonathan (...2190Stanton William (...20951-037 ≣E47It (open)
3Euwe Max (NED)Steiner Hermann (...1-038 ≣E47It
122Souza Mauro G (BRA)2053Sunye Neto Jaime ...25000-132 ≣E47It (open)
223Arun Prasad S (IND)2510Swayams Mishra (IND)23931-034 ≣A40Ch India05 Oct 2012
7Kottnauer Cenek (...2370Szabo Laszlo (HUN)19030-134 ≣E47It
109McMahon Daire (IRL)2240Tejas Bakre (IND)0-130 ≣E47It (cat.3)
112Akhsharumova Anna...2340Thorfinnsson Brag...21551-035 ≣E47It (open)
181Gagarin Vasilij (...2378Timofeev Vladimir...22941-031 ≣E47It (open)04 Feb 2007