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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
69Formanek Edward W...2400Enklaar Bertus F ...23950-141 ≣E46It (b)
68Aijala JormaNiklasson Christe...23850-133 ≣E47Ch Nordic
67Trincardi Tullio ...2235Ornstein Axel (SWE)24130-121 ≣E41It
66Lerch RRoisman Mario (ISR)21300-135 ≣E47Europe Tournament...
65Vaisser Anatoly (...2536Zilberstein Valer...22510-150 ≣E47Spartakiada URS
64Toth Bela (ITA)2345Tatai Stefano (ITA)24550-134 ≣E47Zt
63Portisch Lajos (HUN)2630Hort Vlastimil (GER)26201-026 ≣E47It (cat.12)
62Brinck-Claussen B...2385Sigurjonsson Gudm...25000-135 ≣E41It (cat.7)
61Brilla Banfalvi S...Napolitano Mario ...1-035 ≣E47Ch Poland (team)
60Hort Vlastimil (GER)2620Blackstock Lesly ...24101-035 ≣E47Cup Lord John
59Puronaho AarnoRomppanen Tuomo0-132 ≣E41?
58Blackstock Lesly ...2410Ornstein Axel (SWE)24401-035 ≣E21It
57Fraguela Gil Jose...2380Byrne Robert E (USA)25400-125 ≣E47?
56Knaak Rainer (GER)2520Averbakh Yuri L (...25300-144 ≣E47?
55Bykov Valery (RUS)2301Reshko Aron G (RUS)0-134 ≣E40Ch Leningrad
54Lim Seng-Hoo (SIN)2440Tisdall Jonathan ...23900-127 ≣E47?
52Lombard Andre (SUI)2350Langeweg Kick (NED)24101-032 ≣E47Ch Switzerland
49Borisenko Georgy ...2354Sturua Zurab (GEO)25241-042 ≣E21Ch URS (qual)
48Negyesy GyorgyFagerstrom R1-023 ≣E41corr.
47Stolle EFechner Jurgen1-033 ≣E47corr.
46Valve PekkaTiihonen Erkki1-040 ≣E47?
45Korelov Alexander...2375Roizman Abram Y (...23150-142 ≣E41Memorial A.Sokolsky
44Donner Jan-Hein (...2470Langeweg Kick (NED)24250-142 ≣E47It (cat.10)
43Cherepkov Alexand...2400Osnos Viatcheslav...25400-138 ≣E47?
42Donchenko Oleg I ...2309Krogius Nikolai V...25750-139 ≣E47Ch URS (1/2 final)
41Donner Jan-Hein (...2500Troianescu Octav ...23300-139 ≣E41Memorial J.Capabl...
40Wirthensohn Heinz...2359Schauwecker Meinr...22511-023 ≣E40It (juniors) (und...
39Portisch Lajos (HUN)2523Rubinetti Jorge (...23821-039 ≣E47Izt
38Peltonen UskoHesse Gunter1-035 ≣E47?
37Pomar Salamanca A...2345Keller Dieter (SUI)23591-034 ≣E41Cup Clare Benedict
36Vaganian Rafael A...2577Sakharov Yuri N (...24751-032 ≣E41Ch URS (1/2 final)
35Grigorian Karen (...2430Osnos Viatcheslav...23841-034 ≣E47Ch URS (1/2 final)
34Dmitriev Igor (RUS)2392Hesse Gunter0-127 ≣E21?
33Gligoric Svetozar...2447Korchnoi Viktor (...25560-139 ≣E47It
32Byrne Robert E (USA)2434Villarroel Geber ...22901-036 ≣E21Olympiad
31Tiemeyer HMendel G1-031 ≣E41corr.
29Mileika YaNikitin Aleksande...24300-137 ≣E47Ch URS (team)
26Bondarevsky Igor ...Lein Anatoly (USA)22610-141 ≣E41Memorial M.Chigorin
25Zheliandinov Vikt...2356Makienko1-023 ≣E47Ch \
24Van Den Berg Care...2410Parma Bruno (SLO)24800-133 ≣E41It \
23Hybl Jaroslav (CZE)2172Pachman Ludek (GER)22780-123 ≣E47Ch Czechoslovakia
22Cherepkov Alexand...2395Reshko Aron G (RUS)0-133 ≣E47Ch Leningrad
20Taimanov Mark E (...2386Averbakh Yuri L (...24451-044 ≣E47Ch URS (team)
19Korelov Alexander...2375Zlotnik Boris A (...24331-035 ≣E21Ch URS (team)
17Lapienis Donatas ...2282Dzhanoev David0-141 ≣E41Ch Baltic Republics
15Radev Nikolai (BUL)2304Popov Luben (BUL)23171-040 ≣E41Ch Bulgaria
14Gligoric Svetozar...2447Vukovic Milosav (...22901-028 ≣E21Ch Yugoslavia
13Salas Romo Julio ...Troianescu Octav ...23301-041 ≣E41Olympiad
12Galeb Antoine2200O'Hare E0-131E21Olympiad
11Gligoric Svetozar...2447Burger Karl (USA)23101-039 ≣E47It
10Pfeiffer Gerhard ...Haygarth Michael ...23750-149 ≣E47Cup Clare Benedict
9Tolush Alexander ...Arulaid Alexander...0-132 ≣E41Olympiad URS
8Gromek JozefFilipowicz Andrze...23301-041 ≣E41Ch Poland
7Spassky Boris V (...2548Bobotsov Milko G ...24051-027 ≣E41Match \
6BenitesPadevsky Nikola (...23550-146 ≣E47Ch World (team) (...
5Bannik Anatoly (GER)2175Blagidze Alexander1-049 ≣E47Ch URS (1/2 final)
4Aronson Lev (RUS)Roizman Abram (BLR)1-030 ≣E47Ch Belarus
3Rellstab Ludwig S...2265Scheipl Ralf (GER)22831-036 ≣E41Ch BRD
2Jezek Jaroslav (CZE)2235Ragozin Viachesla...1-046 ≣E41It
1Geller Efim P (RUS)2455Petrosian Tigran ...25801-046 ≣E40