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Queen's Indian, Old Main line, 9.Qxc3 Notation: 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3

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
185Nikolic Predrag (...2620Hjartarson Johann...25501-028 ≣E15It \
595Vladimirov Evgeny...2623Cao Sang (HUN)25350-137 ≣E15Asian Games (team)23 Nov 2010
348Graf Alexander (GER)2625Anagnostopoulos D...24451-035 ≣E15Ch Greece (team)
228Timman Jan H (NED)2630Ehlvest Jaan (USA)26051-038 ≣E15It (cat.17)
600Nguyen Ngoc Truon...2644Wang Li (CHN)23981-028 ≣A04Cup HDBank (open)05 Jan 2011
210Korchnoi Viktor (...2655Salov Valery (RUS)26450-137 ≣A05Cup World
112Karpov Anatoly (RUS)2690Pomar Salamanca A...24351-030 ≣A13It (cat.9)
597Bu Xiangzhi (CHN)2695Vladimirov Evgeny...26231-027 ≣A05Asian Games (team)24 Nov 2010
66Del Vecchio LucioCastaldi Vincenzo...0-126 ≣E15?
379Monterde Angel LuisSanz Arilla Luis ...21320-136 ≣A46Cup Zaragoza05 Dec 1999
372Ignatova YuJaremenko E0-128 ≣E15Ch Russia (junior...
367Lima EmmanuelQuinzio Martin Ja...1-035 ≣A15Ch Argentina (jun...
366Berclaz PhilippeQuaresma EngLuis ...1-035 ≣E15Ch World (e-mail)...
13Euwe Max (NED)Fairhurst William...23001-039 ≣E15Match \05 Jul 1938
351Panchenko AJerez Araoz Gerardo1-036 ≣A05It (open)
489Glushenkov FedorMitkov Alexander ...21000-128 ≣A46It (open) \02 Dec 2006
87Olivera AlfredoVillarroel Geber ...22901-027 ≣E15Olympiad
342Pilchin Mikhail (...Lukuanenko Sergei...22170-132 ≣E15Ch City
29Koblents Alexande...Prucha Karel (CZE)1-027 ≣E15Match \
2Takacs Sandor (HUN)Asztalos Lajos (HUN)0-130 ≣A15It
333Computer \Computer \1-028 ≣E15Match (active)
331Garcia Cervigon J...Lopez Capape Arma...18951-040 ≣E12It (open) \
327Goeczoe Melinda (...Matnadze Ana (GEO)21450-117 ≣E15Ch Europe (junior...
323Pankratov Valery ...Guinsburg Marcelo...1-032 ≣E15Memorial Pelikan ...
322Vaskin VTakhtarov V1-026 ≣A05Ch Russia (corr.)...
118Lindvall AnttiLehtosaari Kalevi...20430-130 ≣E15?
3Makogonov Vladimi...Botvinnik Mikhail...26300-124 ≣A46Ch URS
314Perron SeanBaragar Fletcher ...23050-128 ≣A47Ch Manitoba
4Rejfir Josef (CZE)Thelen Bedrich (CZE)1-035 ≣A47Tournament
5Reti Richard (CZE)Landau Salo (POL)1-037 ≣E15Match
301Ivanovich SMonier Raul (ARG)24050-139 ≣A46It (open) \
300Mekras MikaelEngqvist Thomas (...24050-131 ≣A46Cup Rilton
6Vidmar Milan Sr (...Colle Edgard (BEL)1-033 ≣A46It
290MassonHuuskonen V (FIN)0-130 ≣A46?
7Batuev Andrey Mik...Shipunov Georgy A0-133 ≣E15Ch Leningrad
8Vallve JKahn Victor0-137 ≣A47It
515Pompa SGolubka Petr (UKR)22700-132 ≣A05Ch Ukraine (junio...02 Dec 2007
516Vorobyev IBelyaev Ilja (UKR)20311-036E15Ch Ukraine (junio...05 Dec 2007
517Oberling RudolfWienold Thomas0-131 ≣A05Verbandsliga Bade...16 Dec 2007
265Castelli GCelestini Mauro (...0-139A17It (open)
519Castaneda JLaverde Luis1-028 ≣E15It (open)09 Feb 2008
267Hughes ChrisChinnici G0-127 ≣E15?
257Chambers GilbertKolbert Andrews0-124 ≣E15It (open)
256Kotenko GTikhonov1-034 ≣E15corr.
255Zelazkowski RDybala R1-039 ≣E15Ch Poland (corr.)
254Warren BartoldEhrman Carl0-122 ≣E15It (open)
250Zarzycki WCzarnolewski P0-139 ≣E15Ch Poland (corr.)
9Monticelli Mario ...Najdorf Miguel (POL)24450-135 ≣E15Olympiad
246Nilsen KjellAarland Stein Ari...23000-134 ≣A46It (open)
235Neme JorgeInchausti Pablo0-122 ≣A05It (open) \
535Bui Trong HaoTran Ngo Thien Phu1-034 ≣E15Ch Vietnam (junio...02 Aug 2008
231Van Roosmalen ABrus B1-033 ≣E15corr.
11Simonson AlbertDenker Arnold S (...22931-039 ≣A05Ch USA
225Wilde MartinNeubert Marcus21201-030E15It (open)
224Crespo Borrego Fr...Prieto Julio1-032 ≣A40It (open)
223Marin Aso Josep L...Matamoros A1-025 ≣A05It (open)
221Hylen MatsHjorth Gunnar (SWE)22221-036 ≣A46Ch Sweden (corr.)
12Kolski JosekRegedzinski Teodor0-137 ≣E15It
14Euwe Max (NED)Keres Paul (EST)25800-134 ≣E15Match
215Ramas CPalmer Tony (USA)22170-139 ≣E15It (open)
15Treybal Karel (CZE)Opocensky Karel (...0-137 ≣E15Ch Czechia
552Vrajitoru Vlad-La...Toma Radu-Cristian19790-123 ≣E15Ch Romania (junio...11 Apr 2009
209Heller MartinSeeck Klaus (GER)21460-138 ≣A46Ch Schleswig Hols...
249Kanzaveli VitalyRunning Jeffrey1-015 ≣A05It (open)
208Van Hasselt AHaring0-126 ≣E15corr.
50Euwe Max (NED)Evans Larry M (USA)24700-139 ≣E15It
204Voronov AJaderholm Bo (FIN)18790-131 ≣E15Europe Tournament...
203Roldan CarlosCembran Ezio1-035 ≣E15corr.
35Pirc Vasja (YUG)Golombek Harry (ENG)23201-031 ≣E15It \
17Iliesco Juan TraianNajdorf Miguel (POL)24450-127 ≣A05It
199Sheynin SDahl B (NOR)23101-030 ≣A46Ch Nassau
195MoenkemeyerSchendel Andreas0-130 ≣E15corr.
193KiviahoFilppula0-133 ≣E15Ch Finland (corr.)
192Cederquist BengtMoeller HJ1-040 ≣A40Europe Tournament...
187Lagergren HenryOikamo Teijo0-130 ≣A46?
18Maderna Carlos H ...Bolbochan Jacobo ...0-136 ≣E15It
177Kaunismaa JuhaWelling Pauli1-039 ≣E15?
176Rickers GerhardEngqvist Thomas (...23531-031 ≣E15Cup Baltic (corr.)
174Kerik MKuehnel H1-031 ≣E15Cup Baltic (corr.)
20Weil HWatzl Leopold1-031 ≣A47Ch City
170La Tanza EColombo Alberto (...20900-136 ≣E15Ch Italy
21Steiner Lajos (HUN)Goldstein Maurice...1-036 ≣E15Ch NSW (play-off)
156Karlsson RalfKolsi Ari1-033 ≣E15?
164Madler JurgenLetic Stevan (SRB)21041-035 ≣E15Memorial Heilimo ...
188Lehtonen KalervoRantanen Veikko1-039 ≣E15?
163Gonzalez Trelles ...Reglero Andres1-033 ≣A47Ch Asturias (team)
158Andreas PeterJohansson Thomas ...21731-033 ≣E15It (b)
452Pitic Jasmin (SRB)Nonnenmacher Eber...1-037 ≣A46Verbandsliga Bade...10 Oct 2004
157KocandrieKodym1-027 ≣E15?
152Fiedler (CZE)Gulich W1-028 ≣E15corr.
140Zabihi AAllen Keith (IRL)21971-033 ≣A05Ch World (juniors...
138Wright JohnPeterson George1-032 ≣E15It (corr.)
134ArgentieroBertolucci G1-023 ≣A17corr.
23Filipcic MPoljakov1-030 ≣A46Ch Yugoslavia
43Aratovsky NikolayRovner Dmitry (RUS)1-034 ≣E15Ch URS (1/2 final)
27Katetov Miroslav ...Rohacek Vladimir ...1-040 ≣A05Memorial K.Treybal
601Feofanov AndreiRiabov Alexander ...20810-127 ≣A05Ch City24 Feb 2011
115Gil AntonioArfwedson Gerhard1-029 ≣A15corr.
603Nabavi Parwis (SUI)Wienold Thomas1-032 ≣E15Oberliga Baden 20...10 Apr 2011
110Goldschmidt Berna...Bielicki Carlos (...23150-133 ≣E15It (open) \