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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
373Gulko Boris F (USA)2565Gruenfeld Yehuda ...24801-033 ≣E47It (open)
448Mackie John JMrugala Artur0-133 ≣E46?
671Macias Murillo Br...2335Fier Alexander Hi...26041-033 ≣E47Ch South America ...11 Apr 2009
298Van Meggelen AHoffmann Gerfried0-133 ≣E46Europe Tournament...
722Schreiner Till (GER)2150Mueller Nick19580-133 ≣E47Ch Germany (junio...14 Jun 2011
131Hybl Jaroslav (CZE)2172Blatny Frantisek ...21120-133 ≣E47Ch Czechoslovakia
127Cruz RaulLopez Bahamonde0-133E47Ch Argentina
94Ravn PalleCatozzi H0-133 ≣E47Olympiad
762Maurer Fritz (SUI)2152Duruz Noe (SUI)19301-033 ≣E47It (open)15 Oct 2012
607Perepelitsky Edwa...2123De Guzman Ricardo...23830-133 ≣E47It (open)19 Dec 2005
87Donner Jan-Hein (...2430Larsen Bent (DEN)24150-133 ≣E41Match
82Dzieciolowski AdamWiniwarter Felix ...21760-133 ≣E41Memorial Przepiorka
630Hesselbarth Karlh...1878Bauer Norbert (GER)21180-133 ≣E47It (open) \16 May 2007
567Zilberstein Dmitr...2379Del Pilar Reynald...23061-033 ≣E41It \
39Jorgensen Vagn RauheSpassky Boris V (...25480-133 ≣E41Ch World (juniors...
4Martin Pedro (ARG)2021Bolbochan Julio (...24400-132 ≣E47Zt
209Ketzscher Roland ...2085Jordan Garcia Jos...1-032 ≣E47corr.
99Sokolov Vladimir ...2310Lokvenc Josef (AUT)1-032 ≣E47It
317Andersson NiklasChmiel T (POL)0-132 ≣E47Cup Baltic (corr.)
456Franic Milan (CRO)2390Zelic Zdravko (CRO)23901-032 ≣E41Cup Croatia
143Beggi Pierluigi (...2122Trincardi Tullio ...22351-032 ≣A17It
714Biriukov Ilja (RUS)2410Kurilin Alexander...22711-032 ≣E47It (cat.6)20 Feb 2011
233Uimonen Matti (FIN)2098Lampinen Juha1-032 ≣E47?
84Panno Oscar (ARG)2438Garcia Vera Romeo1-032 ≣E41Ch Argentina
426Maki-Torkko Martt...2195Oksanen Yrjo1-032 ≣E47?
537Niklasch Oliver (...2324Kveinys Aloyzas (...25410-132 ≣E47It (open)
568Zilberstein Dmitr...2379Rowley Robert (USA)22821-032 ≣E47It \
342Balashov Yuri S (...2540Rozentalis Eduard...24901-032 ≣E47Ch URS (1 liga) (...
544Westermayer Johan...1802Baumegger Siegfri...23500-132 ≣E47It (open)
104Donner Jan-Hein (...2430Clarke Peter H (ENG)23001-032 ≣E41Match \
751Kharitonov Alexan...2547Biriukov Nikolai ...24201-032 ≣E47It (open)18 Jun 2012
335Hinchey CBenjamin Joel (USA)25600-132 ≣E47It (open)
28Gligoric Svetozar...2447Janosevic Dragolj...23301-032 ≣E41It
333Hart SHamilton William0-132 ≣E47corr.
617Ganaus Hannes (AUT)2326Papp Gabor (HUN)24660-132 ≣E47It (open)14 Jul 2006
726Atalik Ekaterina ...2481Nikolova Adriana ...22681-032 ≣E47Ch Turkey (team)07 Jul 2011
120Thorbergsson Frey...2340Humerez C0-132 ≣E41Olympiad
474Huss Rolf (GER)2163Schild Christoph ...22880-132 ≣A40It (open)
510Korotylev Alexey ...2528Paramonov Dimitri...23321-032 ≣E47Memorial M.Chigor...
328MatthaeiJust0-132 ≣E47corr.
349SchepersPiekorz Roland19300-132 ≣E41Ch DDR (corr.)
204Pulieri PaoloMicka0-132 ≣E47Ch Europe (corr.)
507Rozumbersky ASeiner F1-032 ≣E47It (open)
361Felice AAlagna S1-032 ≣E47corr.
219Garcia Martinez S...2400Debarnot Roberto ...24201-031 ≣E47It
292BarbagalloLyne Colin18700-131 ≣A17corr.
724Kovalenko Igor (UKR)2578Zubarev Alexander...26081-031 ≣E47Memorial A.Ermak ...01 Jul 2011
614Sondermann Johann...2152Bolvary Tamara (HUN)20610-131 ≣E47Tournament (Elo) (a)07 Apr 2006
611Iotov Valentin (BUL)2503Petkov Vladimir (...24431-031 ≣E47Ch Bulgaria
145Morgulov Alexsand...2335Sardarov Edward (...22060-131 ≣E41Ch Azerbaijan
61Taimanov Mark Ye....2387Darga Klaus Vikto...24531-031 ≣A17Olympiad12 Sep 1956
560Milanovic Danilo ...2429Vasovski Nikola (...23251-031 ≣E47It (open)
693Skomorokhin Roman...2417Fedoseev Vladimir...21541-031 ≣E47Memorial R.Nezhme...03 Jun 2010
92Ojanen Kaarle S (...2335Euwe Max (NED)0-131 ≣E41Olympiad
380Popov Sinisa S (SRB)2443Stanimirovic Alek...22401-031 ≣E40Ch Yugoslavia (team)
32Najdorf Miguel (POL)2445Salas Romo Julio ...1-031 ≣E47It
527Graf Alexander (GER)2610Sulskis Sarunas (...25711-031 ≣E47Ch World FIDE (KO...
390Kjeldsen Jens (DEN)2365Tolnai Tibor (HUN)24950-131 ≣E47It (open)
526Montalvo Alejandr...2259Warner Delisle (BAR)21761-031 ≣E47Sub-zt
206MoranSantoro O1-031 ≣E47Ch Europe (team) ...
402Stasinos Panayoti...2155Koen Maja (BUL)21050-131 ≣E46It (open)
249Kaarlonen KaarloMettinen Timo1-031 ≣E47?
524Michenka Jozef (CZE)2323Holeksa Zdenek (CZE)21061-031 ≣E47It (open)
664Marinone Lucio (ITA)2008Provera Emanuele ...21380-131 ≣E41It (open)28 Dec 2008
754Peralta Fernando ...2602Cori T Deysi (PER)23861-031 ≣E47It (open)03 Jul 2012
80Uhlmann Wolfgang ...2379Szabo Laszlo (HUN)19030-131 ≣E47Zt
237Tarjan James E (USA)2490Padevsky Nikola (...23551-030 ≣E41It
293Azmaiparashvili Z...2455Franzen Jozef (SVK)23021-030 ≣E41Cup Tatran
619Pelletier Yannick...2588Volokitin Andrei ...26451-030 ≣E47It (cat.17)03 Aug 2006
75Van Den Berg Care...2410Kramer Haije J (NED)23301-030 ≣E47Ch Netherlands
500Bernat Marcin (POL)2227Rybak Tomasz (POL)21631-030 ≣E41Ch Poland (team) ...
372Cacho Reigadas Se...2524Corral Blanco Jua...24361-030 ≣E40It (active)
636Koelbl Wolfgang (...1912Schulte Torsten (...22310-130 ≣E47It (open)02 Aug 2007
399Liimatta MarttiKirsi Vesa0-130 ≣E46?
486Galt ArMikhailov Sergey ...23970-130 ≣E41It (open)
198Bjerre Troels (DEN)2320Hamann Svend (DEN)24900-130 ≣E40Tournament
51O'kelly De Galway...2460Rabar Braslav (YUG)1-030 ≣E47It
208Steiner Josef (AUT)2116Kauranen Risto0-130 ≣E47It (cat.7)
62Tserendagva D (MGL)Reissmann Paul (PRO)1-030 ≣E40Olympiad12 Sep 1956
629Kozhuharov Spas (...2463Daurelle Herve (FRA)22631-030 ≣E41It (open)17 Apr 2007
367Siciarz JKanonowicz S1-030 ≣E47Ch Poland (corr.)
521Graf Alexander (GER)2610Kveinys Aloyzas (...25471-030 ≣E47Bundesliga 2000/01
224Beliavsky Alexand...2500Slutzky Leonid (ISR)23281-030 ≣E47Olympiad URS
651Maurer Fritz (SUI)2080Grabher Heinz (AUT)22260-130 ≣E47It (open)26 Apr 2008
83Kluger Gyula (HUN)2250Ivkov Borislav (SRB)24160-130 ≣E47Match \
508Kantsler Boris (ISR)2524Gershon Alik (ISR)25021-030 ≣E47Ch Israel (team)
566Bromberger Stefan...2440Loeffler Stefan (...24320-130 ≣E40Bundesliga 2002/03
463Pihlajamaki JaakkoPennanen Eino0-130 ≣E41?
616Jakab Attila (HUN)2402Ilincic Zlatko (SRB)24510-130 ≣E40It (cat.7)07 Jun 2006
60Uhlmann Wolfgang ...2434Olafsson Fridrik ...24340-130 ≣A17Olympiad10 Sep 1956
466Zilberman Yaacov ...2560Tsesarsky Ilya (ISR)24451-030 ≣E41Tournament
136Petersons AndrejsVoitkevics P1-030 ≣E47Ch Latvia
668Maia Marco Aureli...2136Guimaraes Wagner ...22910-130 ≣E47It (cat.2)16 Feb 2009
130Oikamo ReijoUitto Matti1-030 ≣E47?
462Usachyi Vladimir ...2245Baklan Vladimir (...25700-130 ≣E41It (open)
228Sorsak Jozef Sr (...2125Kolesar Milan (SVK)21750-130 ≣E21It (b)
325Knaak Rainer (GER)2505Horvath Jozsef M ...21041-030 ≣E47It (cat.12)
270Ravikumar Vaidyan...2305Hovde Frank (NOR)22850-130 ≣E47It (open)
439Hultin Per (SWE)2102Plato Bo (SWE)20800-130 ≣E47Ch Sweden (team)
606Van der Werf RVermeulen F0-129 ≣E10It (open)