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Nimzo-Indian, 4.e3, Main line 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 dxc4

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
724Kovalenko Igor (UKR)2578Zubarev Alexander...26081-031 ≣E47Memorial A.Ermak ...01 Jul 2011
297Kausek KZlebcik L1-037 ≣E41Ch Czechoslovakia...
205Corleo MargheritaZlebcik L0-138 ≣E47Ch Europe (team) ...
207Thapper RolandZlebcik L0-149 ≣E47Ch Europe (team) ...
262Mueller Georg (GER)2054Zimmermann Martin...22381-042 ≣E47corr.
147Krutiansky Anatoly AZhdanov Igor0-127 ≣E41Ch Latvia
586Belov Vladimir (RUS)2620Zhao Jun (CHN)25001-029 ≣E47It (open) \19 Feb 2005
517Graf Alexander (GER)2610Zeller Frank (GER)24530-139 ≣E40It (open)
456Franic Milan (CRO)2390Zelic Zdravko (CRO)23901-032 ≣E41Cup Croatia
284Olafsson Helgi (ISL)2270Zaltsman Vitaly F...24451-036 ≣A17It (open)
227Taimanov Mark E (...2580Zaichik Gennadi (...24571-039 ≣E21Olympiad URS
250Lerner Konstantin...2515Zaichik Gennadi (...24571-041 ≣E41Memorial V.Karsel...
202Steiner Josef (AUT)2116Yudovich Mikhail ...1-033 ≣E41corr.
377Allacher Erwin (AUT)2124Wutte H20101-026 ≣E47Staatsliga B
561Giuriato Sergio (...2020Wronn Bernd (GER)22510-120 ≣E40It (open)
368Jolowicz Matias D...2243Wronn Bernd (GER)21920-124 ≣E47Regionalliga Nort...
477Juhnke Karl (GER)2290Wronn Bernd (GER)21921-048 ≣E47Oberliga Northwes...
479Eberhardt Olaf (GER)2099Wohlfart Paulus D...22220-140 ≣E41Oberliga 1997/98
82Dzieciolowski AdamWiniwarter Felix ...21760-133 ≣E41Memorial Przepiorka
264Clayton JAWilson PA1-048 ≣A15corr.
327Jandke Manfred (GER)2163Wicklund Hansen G...1-040 ≣E47Europe Tournament...
199Baart JoanWeyerstrass Ronal...0-148E41Match
110Ivkov Borislav (SRB)2416Wexler Bernardo (...1-040 ≣E41?
499Kodentsov Grisja ...2275Werle Jan (NED)22161-040 ≣E20Ch Netherlands (j...
421Almer JohanWelin Mats (SWE)22511-027 ≣A17It (open) (b)
526Montalvo Alejandr...2259Warner Delisle (BAR)21761-031 ≣E47Sub-zt
599Brener Ilja (GER)2334Warakomski Tomasz...23960-124 ≣E40Ch Europe (junior...
675Li Panru (CHN)2132Wang Xiaohui (CHN)22310-149 ≣E47Ch Asia (w)23 May 2009
661Korobov Anton (UKR)2605Wang Hao (CHN)26960-135 ≣E47World Mindsports ...04 Oct 2008
587Iljushin Alexei (...2546Wang Hao (CHN)25190-144 ≣E47It (open) \20 Feb 2005
330Vogel Robert (GER)2256Waldow Frank1-034 ≣E41Bundesliga 1987/88
348Leverett Bruce W ...2300Wachtel Hovard1-038 ≣E41It (open) \
763Byklum Bjornar (NOR)2298Vuilleumier Alex ...23261-049 ≣E47Cup European Club17 Oct 2012
579Ngo Manh Ha (VIE)Vo Thanh Ninh (VIE)23471-039 ≣E41Ch Vietnam (junio...
731Kovalenko Igor (UKR)2567Voronov Yuri (UKR)22811-025 ≣E47It (open)04 Sep 2011
619Pelletier Yannick...2588Volokitin Andrei ...26451-030 ≣E47It (cat.17)03 Aug 2006
136Petersons AndrejsVoitkevics P1-030 ≣E47Ch Latvia
278Dries JVlugt F (NED)19981-036 ≣E47corr.
559Golovchenko Gleb ...2260Vlasov Egor (RUS)22510-136 ≣E41Ch City (juniors)...
171Sychev AVlansky P1-049 ≣E47Ch URS (corr.)
311Maresca FilippoVincenzi R0-122 ≣E41?
359Ruuskanen TimoViitala Aki0-144 ≣E47?
677Nikolov Sasho (BUL)2416Videnova Iva (BUL)21970-148 ≣E47It (open)23 Jun 2009
27Cuellar Gacharna ...2280Vesterinen J1-043 ≣E41Olympiad
49Kozma Julius (CSR)2380Vesely Jaromir (CZE)19791-042 ≣E21Ch Czechoslovakia
606Van der Werf RVermeulen F0-129 ≣E10It (open)
711Sagar Shah (IND)2298Venkatesh M R (IND)24791-045 ≣E47It (open)19 Jan 2011
515Albarran Gustavo ...2255Vazquez Maximilia...21311-050 ≣E47Ch Superior Torre...
660Vazquez Renier (ESP)2530Vassallo Mauricio...24181-041 ≣E47It (open)24 Aug 2008
525Figueroa Tomas (CHI)2104Vasquez Rodrigo (...24680-123 ≣E47Memorial Pedro Do...
560Milanovic Danilo ...2429Vasovski Nikola (...23251-031 ≣E47It (open)
684Quiroga Facundo (...2329Van Riemsdijk Her...23800-138 ≣A06Ch Paulista (final)03 Oct 2009
608Zhao Zong-Yuan (AUS)2455Van Riemsdijk Her...23811-022 ≣A05It (open)22 Jan 2006
484Garcia Palermo Ca...2470Van Riemsdijk Her...24050-148 ≣E10It (cat.6)
451Veenstra HylkeVan Hassel Rene0-135 ≣E47Ch Netherlands (t...
314MyslivecVan Der Kooij Jaap0-123 ≣E47corr.
343Veenhuijzen RobertVan Buuren J1-043 ≣E46corr.
746Salinas Herrera P...2366Valiente Cristoba...22571-035 ≣E47It (cat.3)02 Apr 2012
378Winiwarter Felix ...2176Unzicker Wolfgang...24500-149 ≣E47Ch World (seniors)
283Goehring Karl-Hei...2335Unzicker Wolfgang...25100-139 ≣E47Bundesliga 1982/83
230Lombard Andre (SUI)2350Unzicker Wolfgang...25351-038 ≣E47Ch Switzerland
294DadicUlkjar1-034 ≣E47corr.
683Ahlander Bjorn (SWE)2423Ulfarsson Magnus ...23800-139 ≣E47Ch Iceland (team)...26 Sep 2009
130Oikamo ReijoUitto Matti1-030 ≣E47?
459Valden Petros (GRE)2243Tzoumbas Anastasi...23800-141 ≣E41Ch Greece (team)
603Radziewicz Iweta ...2453Turov Maxim (RUS)25460-120 ≣E41It (cat.7)06 Nov 2005
57Bisguier Arthur B...2237Turner Abe22001-046 ≣E41Memorial Rosenwald
472Kostin Sergei (RUS)2290Tunik Gennady (RUS)24500-147 ≣E41Cup Russia (open)
742Baciu Stefan (ROM)2222Tudose Cristian (...18541-039 ≣E40Ch Romania17 Feb 2012
300GriesbachTucek Jan1-036 ≣E47corr.
512De Souza Mauro (BRA)2366Tsuboi Edson Kenj...23411-039 ≣E47Ch Paulista (final)
181Cherepkov Alexand...2395Tseshkovsky Vital...24720-141 ≣E41Ch URS
466Zilberman Yaacov ...2560Tsesarsky Ilya (ISR)24451-030 ≣E41Tournament
156Harjunpaa VeikkoTschernauskas0-134 ≣E41Cup Baltic (corr.)
14Tolush Alexander ...Troianescu Octav ...23301-037 ≣E41It
143Beggi Pierluigi (...2122Trincardi Tullio ...22351-032 ≣A17It
689Shevtsov KirillTrifonov Aleksand...0-122 ≣E47Tournament (open)09 Jan 2010
390Kjeldsen Jens (DEN)2365Tolnai Tibor (HUN)24950-131 ≣E47It (open)
388Tsevremes Ioannis...1955Tolnai Tibor (HUN)24950-133 ≣E47It (open)
715Nieto Emanuel (BEL)2275Tjiam Dharma (NED)23820-140 ≣E41Ch Belgium (team)...27 Feb 2011
433Ivanchuk Vassily ...2740Tiviakov Sergei (...26551-036 ≣E47It (cat.17)
490Sturua Zurab (GEO)2602Tiviakov Sergei (...26111-045 ≣E47Cup European Club...
534Kramnik Vladimir ...2809Tiviakov Sergei (...25991-038 ≣E47It (cat.19)
286Knaak Rainer (GER)2505Tischbierek Raj (...24541-042 ≣E41It
238Knaak Rainer (GER)2520Timoscenko Gennad...24830-134 ≣E47?
620Abeln Michiel (NED)2380Thorfinnsson Brag...23870-138 ≣E47Cup European Club10 Oct 2006
338Marks IanTenev Teno P0-139 ≣E47Europe Tournament...
733Urkedal Frode (NOR)2447Tari Aryan (NOR)22241-029 ≣E47It (open)02 Oct 2011
212Reshevsky Samuel ...2560Tan Lian-Ann (SIN)23701-043 ≣E47Izt
31PasmanTal Mikhail N (LAT)25200-133 ≣E47Ch Latvia
80Uhlmann Wolfgang ...2379Szabo Laszlo (HUN)19030-131 ≣E47Zt
106Bertholdt DieterSzabo Laszlo (HUN)19031-029 ≣E47It
1Benko Pal C (USA)2408Szabo Laszlo (GER)22001-046 ≣E47
735Lund Stale (NOR)1848Swiercz Dariusz (...25850-119E47It (open)03 Nov 2011
749Korobov Anton (UKR)2679Swiercz Dariusz (...25651-045 ≣E47Match \29 May 2012
354Remensberger HSuri Hans (SUI)20081-038 ≣E47It (open)
738Netusil Miroslav ...2318Sura Jaroslav (CZE)21871-033 ≣E47Ch Czech Republic...27 Nov 2011
527Graf Alexander (GER)2610Sulskis Sarunas (...25711-031 ≣E47Ch World FIDE (KO...
319Radulov LStrand1-046 ≣E46Europe Tournament...
494Kay JBStracy D (NZL)1-033 ≣E41Ch North Island (b)