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Nimzo-Indian, 4.e3, Main line with 8...Bxc3 Notation: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nf3 d5 6. Bd3 c5 7. 0-0 Nc6 8. a3 Bxc3+ 9.bxc3 Qc7

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
104Knaak Rainer (GER)2500Arduman Can (TUR)23361-044 ≣E47Olympiad
244Neverov Valeriy (...2569Hetey Laszlo (GER)23411-019 ≣E46It (open)
243Jaulin Philippe (...2087Hetey Laszlo (GER)23410-143 ≣E46It (open)
359Van Der Stricht G...2392Docx Stefan (BEL)23421-033 ≣E47It \06 Sep 2010
71Scheeren Peter (NED)2415Karsa Laszlo (HUN)23460-136 ≣E47It (open)
365Di Berardino Dieg...2483Tsuboi Edson Kenj...23501-032 ≣E47Memorial Antonio ...14 Jan 2011
331Kovacs G_ (HUN)2514Solomon Kenny (RSA)23511-035 ≣E46It (cat.8)06 Jun 2009
6BenitesPadevsky Nikola (...23550-146 ≣E47Ch World (team) (...
171Yakovich Yuri (RUS)2530Wilhelmi Christia...23550-140 ≣E47It (open) \
53Unzicker Wolfgang...2535Keller Dieter (SUI)23591-038 ≣A05Ch Switzerland
360Fernandez Francis...2313Krylov Sergey (RUS)23590-148 ≣E47Olympiad25 Sep 2010
320Garcia Vicente Ni...2220Rubio Mejia Luis ...23590-147 ≣E47It (open)23 Jul 2008
37Pomar Salamanca A...2345Keller Dieter (SUI)23591-034 ≣E41Cup Clare Benedict
197Mancini Mario (FRA)2285Fontaine Robert (...23601-045 ≣E47Ch France (b)
232Maurer Fritz (SUI)2181Balogh Csaba (HUN)23670-127 ≣E47It (open)
368Tan Zhongyi (CHN)2429Guo Qi (CHN)23671-035 ≣D30Ch China (w)30 Mar 2011
316Illingworth Max (...2250Lane Gary W (AUS)23711-036 ≣E47Ch Australia07 Jan 2008
250Sherbakov Ruslan ...2557Shetty Rahul (IND)23720-147 ≣E47It (open)
260Jakab Attila (HUN)2402Gerzhoy Leonid (CAN)23720-146 ≣E41It (cat.7)
92Groszpeter Attila...2521Barczay Laszlo (HUN)23750-145 ≣E41?
10Pfeiffer Gerhard ...Haygarth Michael ...23750-149 ≣E47Cup Clare Benedict
123Ibragimov Ildar (...2485Skomorokhin Roman...23761-026 ≣E00Ch URS (1/2 final)
39Portisch Lajos (HUN)2523Rubinetti Jorge (...23821-039 ≣E47Izt
70Shashin Alexsande...2350Osnos Viatcheslav...23841-041 ≣E47?
35Grigorian Karen (...2430Osnos Viatcheslav...23841-034 ≣E47Ch URS (1/2 final)
68Aijala JormaNiklasson Christe...23850-133 ≣E47Ch Nordic
369Gajewski Grzegorz...2607Loncar Robert (CRO)23851-044 ≣E47It (open)11 Apr 2011
305Raceanu Valentin ...2398Manole Vasile (ROM)23871-031 ≣E47Ch Romania (team)12 Nov 2006
54Lim Seng-Hoo (SIN)2440Tisdall Jonathan ...23900-127 ≣E47?
157Vilkov Vladimir (...2367Kharlamov Vladimi...23900-132 ≣E47Ch Russia (1/2 fi...
155Sitoe Titos (MOZ)Rizouk Ryad (ALG)23900-127 ≣E46Match (team)
188Zeeck Detlef1850Ksieski Zbigniew ...23900-125 ≣E47It (open)
309Fier Alexander Hi...2516Van Riemsdijk Her...23911-020 ≣A06Tournament (team) \03 Mar 2007
335Boros Denes (HUN)2485Estremera Panos S...23940-140 ≣A05Cup Artemis (open)15 Jul 2009
282Peralta Fernando ...2538Andres Gonzalez A...23951-037 ≣E47It (open)24 Mar 2005
69Formanek Edward W...2400Enklaar Bertus F ...23950-141 ≣E46It (b)
253Trevelyan John (WLS)2191Van Der Stricht G...23970-123 ≣E47Cup European Club...
151Pospelov Evgeny (...2385Mochalov Evgeny V...24001-044 ≣E10Memorial Vitebsky
173Emodi Barnabas (HUN)2315Anka Emil (HUN)24000-135 ≣E11It (open)
139Ibragimov Ildar (...2540Roeder Mathias (GER)24051-031 ≣E47It (open) \
106Villavicencio Ada...2310Rodriguez Talaver...24051-037 ≣E10It (open)
7Spassky Boris V (...2548Bobotsov Milko G ...24051-027 ≣E41Match \
341Kashlinskaya Alin...2346Kovanova Baira (RUS)24061-038 ≣E47Cup Russia (w)05 Nov 2009
225Ivanov Andrey A (...2297Shalimov Valery (...24060-126 ≣E46It (cat.4)
214Alexandrova Olga ...2300Agopov Mikael (FIN)24090-126 ≣E41It
60Hort Vlastimil (GER)2620Blackstock Lesly ...24101-035 ≣E47Cup Lord John
156Neverov Valeriy (...2485Anka Emil (HUN)24101-038 ≣E41It (open) \
235Li Wenliang (CHN)2511Hakki Imad (SYR)24101-030 ≣E41Ch Asia
52Lombard Andre (SUI)2350Langeweg Kick (NED)24101-032 ≣E47Ch Switzerland
67Trincardi Tullio ...2235Ornstein Axel (SWE)24130-121 ≣E41It
285Peralta Fernando ...2538Vehi Bach Victor ...24161-027 ≣E47It (open)23 May 2005
124Ibragimov Ildar (...2485Vekshenkov Nikola...24161-035 ≣E41Ch URS (1/2 final)
150Takhtarov VKharlamov Vladimi...24181-037 ≣E46Ch URS (team) (co...
402Hillarp Persson T...2530Tisdall Jonathan ...24181-034 ≣E47Ch Norway (team) ...25 Mar 2012
136Rivas Pastor Manu...2520Eslon Jaan (SWE)24201-045 ≣E41It (open)
218Aarland Stein Ari...2259Johannessen Leif ...24221-034 ≣A40It (open)
230Hansen Herluf (FAI)2047Johannessen Leif ...24220-130 ≣A40It (open)
288Belov Vladimir (RUS)2620Pilgaard Kim (DEN)24231-029 ≣E47Cup North Sea (open)04 Jul 2005
292Iotov Valentin (BUL)2503Grigorov Grigor (...24241-050 ≣E47Ch Bulgaria
242Smirnov Pavel (RUS)2510Bocharov Dmitry (...24251-032 ≣E41Ch Russia (junior...
44Donner Jan-Hein (...2470Langeweg Kick (NED)24250-142 ≣E47It (cat.10)
224Shankar Roy (IND)2326Atanu Lahiri (IND)24260-135 ≣E46Ch India (b)
363Zilberman Yaacov ...2462Battaglini Gabrie...24291-045 ≣E47It (cat.6)06 Dec 2010
339Misojcic Miroslav...2232Petkov Vladimir (...24291-050 ≣E47Ch Serbia (team) ...23 Sep 2009
314Urosevic Marija (...2076Bogdanovski Vlatk...24290-126 ≣E47Cup Belgrade (open)30 Nov 2007
166Taimanov Mark E (...2510Osnos Viatcheslav...24301-047 ≣E41Memorial S.Furman
165Dib Ashur Elias A...2050Quiroga Facundo (...24300-148 ≣E47It (open) \
28Geller Efim P (RUS)2455Nikitin Aleksande...24301-031 ≣A17It \
29Mileika YaNikitin Aleksande...24300-137 ≣E47Ch URS (team)
405Ramakrishna J (IND)2232Satyapragyan Sway...24320-145 ≣E40Ch India (challen...22 May 2012
217Fahed Ahmad (UAE)2001Maharramzade Java...24330-133E21It (open)
19Korelov Alexander...2375Zlotnik Boris A (...24331-035 ≣E21Ch URS (team)
329Soyer Jean-Yves (...2081Delorme Axel (FRA)24340-130 ≣A05It (open)19 Apr 2009
160Palacios Perez Ma...2192Tatai Stefano (ITA)24351-025 ≣E41It (open)
312Paikidze Nazi (GEO)2292Shalimov Valery (...24390-143 ≣E47It24 Jul 2007
58Blackstock Lesly ...2410Ornstein Axel (SWE)24401-035 ≣E21It
204Giorgadze Giorgi ...2610Arlandi Ennio (ITA)24401-043 ≣E47It (open)
201Babula Vlastimil ...2575Arlandi Ennio (ITA)24401-035 ≣E47Cup Mitropa
134Belov Igor (RUS)2422Zaiatz Elena (RUS)24411-050 ≣A06Memorial M.Tal
290Castillo Martinez...2133Veingold Aleksand...24440-148 ≣E47It (open)19 Aug 2005
376Kashlinskaya Alin...2385Roser Kevin (FRA)24440-128 ≣E47Ch Paris (open)09 Jul 2011
377Pohjala Henri (FIN)2263Agopov Mikael (FIN)24450-116 ≣E47It (open) \16 Jul 2011
20Taimanov Mark E (...2386Averbakh Yuri L (...24451-044 ≣E47Ch URS (team)
105Djuric Stefan (SRB)2463Abramovic Bosko (...24450-150 ≣E47Ch Yugoslavia
239Knaak Rainer (GER)2494Duppel Matthias (...24461-033 ≣A40Bundesliga 2000/01
307Dumitrache Dragos...2485Bellaiche Anthony...24481-048 ≣E10It (cat.9)16 Feb 2007
409Fernandez Maria (...2150Tristan Leonardo ...24490-126 ≣E47Ch Argentina09 Jul 2012
406Peralta Fernando ...2591Solomon Kenny (RSA)24491-032 ≣E47It (open)03 Jun 2012
83Knaak Rainer (GER)2530Tischbierek Raj (...24500-133 ≣E47It (cat.8)
77Dydyshko Viachesl...2460Korzubov Peter (BLR)24500-141 ≣E10Ch Belarus
184Kanko Ilkka (FIN)2255Veingold Aleksand...24500-126 ≣E47Ch Finland (open)
375Kanarek Marcel (POL)2444Fauland Alexander...24521-025 ≣E47It (cat.9)09 Jul 2011
304Norri Joose (FIN)2356Veingold Aleksand...24520-136 ≣E47Ch Finland (team)...17 Sep 2006
247Kallio Heikki (FIN)2474Shahade Gregory (...24521-038 ≣E47It (cat.8)
108Knaak Rainer (GER)2485Tischbierek Raj (...24541-041 ≣E46It (cat.10)
64Toth Bela (ITA)2345Tatai Stefano (ITA)24550-134 ≣E47Zt
119Pop T (ROM)Maksimovic Branim...24550-142 ≣E46It (open)
238Bengtson Matthew ...2264Shahade Gregory (...24590-137 ≣E47It \
310Oliver Gareth (AUS)2164Bakre Tejas (IND)24590-129 ≣E41It (open)11 Apr 2007
89Hort Vlastimil (GER)2545King Daniel J (ENG)24601-049 ≣E21Bundesliga 1985/86