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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
276Beutler MKuhn0-128 ≣E47corr.
609Berkes Ferenc (HUN)2589Ilincic Zlatko (SRB)24511-035 ≣E47Ch Hungary (team)...12 Feb 2006
610Muir Andrew J (SCO)2341Bellia Fabrizio (...23950-136 ≣E47It (cat.7)17 Feb 2006
685Purdon Colin (ENG)2102Downey Keith (WLS)19310-140 ≣E47It (open)20 Oct 2009
288Knaak Rainer (GER)2490Prandstetter Edua...24401-027 ≣E47Ch Czechoslovakia...
762Maurer Fritz (SUI)2152Duruz Noe (SUI)19301-033 ≣E47It (open)15 Oct 2012
686Byklum Bjornar (NOR)2310Grandelius Nils (...25150-142 ≣E47Ch Norway (team) ...06 Nov 2009
688Zilberman Yaacov ...2439Lerner Konstantin...25490-133 ≣E47Memorial L.Slutsk...19 Dec 2009
730Peralta Fernando ...2601Pavlidou Ekaterin...22201-039 ≣E47It (open)19 Aug 2011
667Yurkov Alexey (UKR)2163Mazurchak Bogdan ...21870-139 ≣E47Ch Ukraine (junio...14 Feb 2009
689Shevtsov KirillTrifonov Aleksand...0-122 ≣E47Tournament (open)09 Jan 2010
294DadicUlkjar1-034 ≣E47corr.
296Movre DKalvelis1-025 ≣E47corr.
300GriesbachTucek Jan1-036 ≣E47corr.
301KummerStache1-047 ≣E47corr.
302MolzahnSelke Horst1-035E47corr.
304Nieland CLaarhoven Thijs (...22111-039 ≣E47corr.
308Kulbacki JamesHosey L1-028 ≣E47It (open)
10Bronstein David I...2432Porath Yosef (ISR)23401-049 ≣E47Olympiad
97Gligoric Svetozar...2447Pachman Ludek (GER)22781-042 ≣E47Izt
215Donner Jan-Hein (...2495Knaak Rainer (GER)25151-038 ≣E47It \
314MyslivecVan Der Kooij Jaap0-123 ≣E47corr.
315Gil Capape Javier...2444Murshed Niaz (BAN)24421-037 ≣E47Ch World (juniors...
317Andersson NiklasChmiel T (POL)0-132 ≣E47Cup Baltic (corr.)
321Pilgenroether MHeigl Rudolf (GER)21901-014 ≣E47corr.
322Pohl Walter (GER)2123Bernard H0-126 ≣E47corr.
324Knaak Rainer (GER)2505Georgiev Kiril (MKD)25351-038 ≣E47Match \
325Knaak Rainer (GER)2505Horvath Jozsef M ...21041-030 ≣E47It (cat.12)
327Jandke Manfred (GER)2163Wicklund Hansen G...1-040 ≣E47Europe Tournament...
328MatthaeiJust0-132 ≣E47corr.
693Skomorokhin Roman...2417Fedoseev Vladimir...21541-031 ≣E47Memorial R.Nezhme...03 Jun 2010
660Vazquez Renier (ESP)2530Vassallo Mauricio...24181-041 ≣E47It (open)24 Aug 2008
331Donaldson John W ...2390Dolgitser Konstan...22611-041 ≣E47It (open)
333Hart SHamilton William0-132 ≣E47corr.
334Zsinka Laszlo (HUN)2286Cladouras Panagio...23701-041 ≣E47It
335Hinchey CBenjamin Joel (USA)25600-132 ≣E47It (open)
642Potkin Vladimir (...2613Kiselev Vitaliy (...25271-035 ≣E47It (open)07 Feb 2008
339BaruckerPiekarz P1-022 ≣E47corr.
340BuszlerJust Joachim (GER)20470-121 ≣E47corr.
345Cembran EzioDeforel Jorge Edu...1-041 ≣E47corr.
346Bokor Istvan (HUN)2226Horvath Csaba (HUN)24450-149 ≣E47It (open) \
347Also LuisMartin Fernandez ...21561-019 ≣E47It (open)
756Maiorov Nikita (BLR)2574Darmarakis Mihail...22140-140 ≣E47It (open)08 Jul 2012
697Kapnisis Spyridon...2511Pavlidou Ekaterin...21911-041 ≣E47Cup Artemis (open)14 Jul 2010
351Gupta Milon (GER)2270Dommisse C (NED)1-050 ≣E47It (open)
83Kluger Gyula (HUN)2250Ivkov Borislav (SRB)24160-130 ≣E47Match \
354Remensberger HSuri Hans (SUI)20081-038 ≣E47It (open)
698Ponomariov Ruslan...2749Naiditsch Arkadij...26741-046 ≣E47It (cat.20)23 Jul 2010
356JerabekKubis0-135 ≣E47Ch Czechoslovakia...
358Oriansky AGaspariants I1-048 ≣E47Ch Europe (corr.)
359Ruuskanen TimoViitala Aki0-144 ≣E47?
361Felice AAlagna S1-032 ≣E47corr.
363Fiorito Fabian (ARG)2438Fernandez Murga R...22301-048 ≣E47Ch Argentina
365Ograbek Grzegorz ...2177Gaida H0-124 ≣E47Ch Poland (corr.)
539Niemela Antti (FIN)2256Koskela Niina (FIN)23101-045 ≣E47Ch Finland (team)...
367Siciarz JKanonowicz S1-030 ≣E47Ch Poland (corr.)
368Jolowicz Matias D...2243Wronn Bernd (GER)21920-124 ≣E47Regionalliga Nort...
387Janssen Ger (NED)2228Bellin Robert (ENG)23850-136 ≣E47It (open)
370Anapolsky Sergey ...2407Ostojic Nikola (SRB)24461-039 ≣E47Match \
371Wiederkehr WMold C1-028 ≣E47corr.
99Sokolov Vladimir ...2310Lokvenc Josef (AUT)1-032 ≣E47It
701Del Rio Angelis S...2515Sanchez Gonzalez ...22881-046 ≣E47It (open)11 Sep 2010
375Computer \Computer \0-138 ≣E47Ch World (computers)01 Jan 1991
117Schweber Samuel (...2348Reinhardt Enrique...1-046 ≣E47Ch Argentina (pla...
378Winiwarter Felix ...2176Unzicker Wolfgang...24500-149 ≣E47Ch World (seniors)
285Hoi Carsten (DEN)2390Norgaard Jesper (...24081-034 ≣E47Tournament
279Easton Alex (SCO)2147Miles Jana0-135 ≣E47It (open)
381Siciarz JLewandowski K22001-035 ≣E47Ch Poland (corr.)
384Reading MichaelLittke Adam (CAN)23100-134 ≣E47It (open)
388Tsevremes Ioannis...1955Tolnai Tibor (HUN)24950-133 ≣E47It (open)
390Kjeldsen Jens (DEN)2365Tolnai Tibor (HUN)24950-131 ≣E47It (open)
398Hoszowski PiotrNowak Z1-037 ≣E47Ch Poland (corr.)
392Hlavnicka Jiri (CZE)2243Prandstetter Edua...24100-129 ≣E47Ch Czech Chess Union
393Murdzia Piotr (POL)2472Aleksandrov Aleks...25050-143 ≣E47Ch Europe (juniors)
394Semkov Semko (BUL)2450Serrano Marhuenda...21031-022 ≣E47It (open)
400Sherbakov Ruslan ...2580Kupreichik Viktor...25351-035 ≣E47It \
704Boettger Lukas (GER)2130Hummel Dennis (GER)20201-037 ≣E47Ch Germany (unive...09 Oct 2010
705Petran Pal (HUN)2348Getz Nicolai (NOR)22760-133 ≣E47It (cat.1)09 Oct 2010
373Gulko Boris F (USA)2565Gruenfeld Yehuda ...24801-033 ≣E47It (open)
405Lisjak Zlatko (CRO)2314Jokovic Dusan (SLO)20821-033 ≣E47Tournament (team)
407Livshits Ron (CAN)2336McGarrett Ian (CAN)21721-025 ≣E47It
1Benko Pal C (USA)2408Szabo Laszlo (GER)22001-046 ≣E47
342Balashov Yuri S (...2540Rozentalis Eduard...24901-032 ≣E47Ch URS (1 liga) (...
410Pappa Domingo (ARG)2120Deforel Jorge Edu...1-021 ≣E47corr.
411Golubovich AGutop Yuri V (RUS)23030-115 ≣E47Ch URS (team) (co...
244Brinck-Claussen B...2263Fries-Nielsen Jen...23871-042 ≣E47Ch Denmark
413Komljenovic Luka ...2228Niedermaier Hans ...22690-140 ≣E47Bundesliga (2nd) ...
706Bezemer Arno (NED)2318L'Ami Erwin (NED)26240-141 ≣E47It (open)22 Oct 2010
416Lesiege Alexandre...2460Baragar Fletcher ...22851-047 ≣E47Ch Canada
707Ben Arzi Ido (ISR)2183Abasov Nijat Azad...25170-134 ≣E47Ch World (juniors...26 Oct 2010
418Fominyh Alexander...2505Granovski Aleksan...23401-037 ≣E47It (open)
420Atalik Suat (BIH)2535Karason Askell O ...22301-036 ≣E47It (open)
422HolstLundin Alexandr (...23030-125 ≣E47Ch Sweden (team)
710Nieto De La Cruz ...2154Sanchez Gonzalez ...22861-043 ≣E47Liga Madrilena 20...09 Jan 2011
425Knaak Rainer (GER)2540Korchnoi Viktor (...26351-023 ≣E47Cup Hofmann
426Maki-Torkko Martt...2195Oksanen Yrjo1-032 ≣E47?
711Sagar Shah (IND)2298Venkatesh M R (IND)24791-045 ≣E47It (open)19 Jan 2011
712Verko Tatiana (KAZ)2104Kovanova Baira (RUS)23691-026 ≣E47It (open) (w)
429Iskusnyh Sergei (...2430Balashov Yuri S (...24900-147 ≣E47Ch Russia
430Mertanen Janne (FIN)2369Nokso-Koivisto An...22350-141 ≣E47Ch Finland (team)...