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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
412Oppezzo Sebastian...2177Urbieta Osvaldo0-134 ≣E15Tournament
180Orr Mark J L (IRL)2365Klinger Josef (AUT)19810-135 ≣A05Olympiad
424Osterberg HugoDiesen Bruce (NOR)22560-133 ≣E15Ch Norway (team) ...
197Overgaard Christi...2250Pilgaard Kim (DEN)24241-040 ≣A05It (open)
178Overgaard Christi...2250Ustergard Jens1-037 ≣A05Ch Denmark (junio...
107Padevsky Nikola (...2355Radulov Ivan (BUL)23061-031 ≣A05Ch Bulgaria (play...
493Pakleza Zbigniew ...2429Praxmarer Christi...21071-033 ≣A05It (open)26 Dec 2006
351Panchenko AJerez Araoz Gerardo1-036 ≣A05It (open)
323Pankratov Valery ...Guinsburg Marcelo...1-032 ≣E15Memorial Pelikan ...
399Pantsulaia Levan ...2375Charkhalashvili I...23191-038 ≣E15It (open)
212Panzalovic Srdjan...2458Kula Robert (POL)23411-040 ≣A05It (open)
520Pape Manfred (GER)2300James Gaynor D (WLS)20051-039 ≣A05Ch Europe (senior...13 Feb 2008
360Parkkinen Jyrki (...2111Tuutti Petri (FIN)20981-034 ≣A05It (open)
251Parkkinen Jyrki (...2165Kievelitz Bernd (...20621-034 ≣A05?
575Pascua Haridas (PHI)2352Nguyen Anh Dung (...25000-139 ≣A46Ch Asia29 Apr 2010
349Patuzzo Fabricio ...2290Maas Thomas (BEL)21021-026 ≣A40Ch World (univers...
590Paukert Jan1928Hulin Petr (CZE)20370-120 ≣A46It (open)23 Aug 2010
543Pavlidis Anastasi...2348Stathopoulos Ioan...19091-023 ≣E15Ch Greece (junior...05 Jan 2009
289Pavlov Aleksandr ...2240Sigitov V1-026 ≣E15Ch Russia (team)
445Pedemonte Claudio...1934Aleksic Nenad (MNE)20120-134 ≣A10It (open)11 Jun 2004
242Pelter Yehuda Z (...2007De Jager Jaap (NED)23950-127 ≣A40Tournament (a)
475Perez De Miguel A...2098Diez Fraile David...21721-028 ≣A46Ch Euskadi20 Apr 2006
356Perez Juan M (CUB)2239Sabater A1-039 ≣E15Ch Spain (team) (...
629Perhinig Robert (...2237Bedouin Xavier (FRA)24020-136 ≣E15It (open)15 Jun 2012
314Perron SeanBaragar Fletcher ...23050-128 ≣A47Ch Manitoba
400Petran Pal (HUN)2372Desmarais Chris (...21511-022 ≣E15It (a)
325Pezerovic Edin (GER)2445Lang Zalan Andrea...22181-036 ≣A05Bayern Oberliga
262Pfeffer Ruprecht ...2261Lankenau Christia...21251-023 ≣E15Ch Germany (junio...
390Piankov Evgenij (...2365Vion Jean-Francoi...20781-040 ≣A46It (open)
291Piankov Evgenij (...2415Collard Olivier (...21821-038 ≣A46Ch France (team)
236Piechocki Francis...2245Akesson Ralf (SWE)24210-139 ≣A46It (open)
547Piesina Gintautas...2342Setkauskas Vaidas...21861-021 ≣A05Ch Lithuania (1/2...16 Feb 2009
342Pilchin Mikhail (...Lukuanenko Sergei...22170-132 ≣E15Ch City
35Pirc Vasja (YUG)Golombek Harry (ENG)23201-031 ≣E15It \
377Piscopo Pierluigi...2039Laketic Gojko (SRB)24180-132 ≣E15Tournament (open)
452Pitic Jasmin (SRB)Nonnenmacher Eber...1-037 ≣A46Verbandsliga Bade...10 Oct 2004
556Pitrelli Antonio ...1890Calandri Fausto (...21310-115 ≣A40It (open)
494Plante Rejean2152Auger Bertrand19700-130 ≣A40Tournament \01 Feb 2007
591Plass Mariana-Cam...2134Baciu Anca-Otilia...21301-040 ≣A46Ch Romania (team)...05 Sep 2010
56Platz HansStahlberg Gideon ...0-138 ≣A46Memorial G.Maroczy
538Pogosian Manvel (...2256Androsov Sergey (...20781-035 ≣A46Memorial M.Chigor...10 Oct 2008
125Polugaevsky Lev A...2620Ree Hans (NED)25001-040 ≣E15Olympiad (telechess)
515Pompa SGolubka Petr (UKR)22700-132 ≣A05Ch Ukraine (junio...02 Dec 2007
455Popic Simeon (SRB)2089Pavlovic Dragolju...22520-140 ≣E15It (open)26 Nov 2004
59Porreca Giorgio (...Del Vecchio Lucio1-017 ≣A05Ch Italy
608Prachar Josef (CZE)1888Svec Ludek (CZE)17061-031 ≣E15It (open)09 May 2011
521Primbetov K (KAZ)2220Kabyshev A1-024 ≣E15Ch City26 Feb 2008
423Profumo Alberto (...2256Maupin Jean-Paul ...20471-035 ≣A05It (open)
391Prokopishin Vasil...2346Szabo Zsolt Jozse...24580-134 ≣A05It (open)
1Przepiorka Dawid ...Ahues Carl O (GER)0-131 ≣A47
447Przezdziecka Mart...2128Yildiz Betul (TUR)20211-029 ≣A46Ch Europe (junior...01 Aug 2004
483Przezdziecka Mart...2299Nowak Ryszard (POL)21881-034 ≣A46It (open)26 Aug 2006
422Qendro Llambi (ALB)2364Valenti Giuseppe ...22301-030 ≣E15It \
558Quintin Navarro A...2064Pardo Simon David...23210-132 ≣E00Ch Spain (juniors...11 Jul 2009
61Ragozin Viachesla...Cherepkov Alexand...23951-032 ≣E15Ch URS (1/2 final)
123Raivio Yrjo (FIN)2067Fly Bjarne1-023 ≣E15Ch Denmark (juniors)
124Raivio Yrjo (FIN)2067Jensen Rene (DEN)22951-025 ≣E15Ch Denmark (juniors)
633Rakic Teodora (SRB)1851Zarkovic Mila (SRB)19960-134 ≣E15Ch Serbia (junior...30 Jul 2012
88Rakovsky EmileNovak Ervin (CZE)22251-039 ≣A05It
215Ramas CPalmer Tony (USA)22170-139 ≣E15It (open)
581Ramon Solans Albe...2221Marches Rios Juan...21161-027 ≣A46Tournament (Elo) (a)15 Jul 2010
624Reichert Thiago d...2029Bueno Alfeu Junio...23050-132 ≣A40Ch Catarinense09 Feb 2012
4Rejfir Josef (CZE)Thelen Bedrich (CZE)1-035 ≣A47Tournament
172Renman Nils-Gusta...2425Eriksson Anders (...22951-040 ≣A46Ch Sweden
588Renteria Jorge (COL)2266Gutierrez Olivare...21751-035 ≣E15Ch Spain (team) (...07 Aug 2010
5Reti Richard (CZE)Landau Salo (POL)1-037 ≣E15Match
75Reyes Jara Pablo ...2053Filipowicz Andrze...23301-038 ≣A46Olympiad
176Rickers GerhardEngqvist Thomas (...23531-031 ≣E15Cup Baltic (corr.)
385Riedner Martin (AUT)2199Schmidt Jade (GER)20981-036 ≣E15It (open)
159Rind Bruce (USA)2335Wiedenkeller Mich...23200-123 ≣A05Ch Cleveland
120Rind Bruce (USA)2335Crouch Colin S (ENG)23651-035 ≣A05It (open) \
345Rodgaard John (FAI)2320Olafsson Helgi (ISL)22701-040 ≣A15Zt
181Rodgaard John (FAI)2343Varasdy Imre (HUN)23371-014 ≣A13It (open) \
318Rodriguez Uria Ju...2272Nachon Menendez G...21321-028 ≣E15Ch Asturias (team...
203Roldan CarlosCembran Ezio1-035 ≣E15corr.
502Romsdal Trond (NOR)2168Thingstad Even (NOR)19150-130 ≣A46It (open) \09 Aug 2007
304Ros Aksel (DEN)2115Petersen Steen (DEN)21500-116 ≣A47It (open) \
19Rossetto Hector (...2285Stahlberg Gideon ...0-136 ≣E15It
232Rowson Jonathan (...2581Garrido Fernandez...22290-133 ≣A46Ch World (juniors)
392Royer Oto InacioBrodda Wolfgang0-132 ≣E15corr. ICCF
470Ruether Rudolf (GER)2188Leitner Maximilia...22550-138 ≣E15Bayern Landesliga...13 Nov 2005
440Ruiz Garcia Jose ...2117Moya Albadalejo J...19791-037 ≣E15Ch Murcia
245Rutman Aleksandr ...2198Vifian Heinz (SUI)19701-036 ≣E15It (open)
282Ruzele Darius (LTU)2495Butnorius Algiman...24500-138 ≣E15Ch Lithuania
548Sabaliauskas Laim...1979Setkauskas Vaidas...21860-128 ≣A15Ch City22 Feb 2009
28Sajtar Jaroslav (...Vymetal Vaclav (CZE)1-027 ≣E15Memorial Dobrusky...22 Jan 1946
389Salzmann Peter (GER)2214Eckhardt Claudia ...21530-127 ≣E15Oberliga East A 1...
427Samardzija Zeljko...1943Aksentijevic Mali...22190-138 ≣E15It (open) \
573Sanchez Criado Ll...2176Tortosa Moros Joa...18351-028 ≣E15Tournament \13 Apr 2010
216Sandkamp Ralph (GER)2307Schlenga Klaus0-127 ≣E15Bundesliga 1989/90
63Santiago Oliveira...Tavares Da Silva ...0-138 ≣E00Ch Brazil
353Sanz Arilla Luis ...2254Ariste Justo Jesu...18781-029 ≣E15Memorial Dr. Rey ...
466Sarivan Mircea (MDA)2150Hamitevici Vladim...22840-140 ≣E15Cup ULIM (open)10 Oct 2005
196Savchenko Stanisl...2480Frolov Artur (UKR)24991-033 ≣E15Ch Ukraine
546Scheffknecht Phil...2163Burnoiu Nicolae-C...24200-140 ≣A46It (open)13 Feb 2009
273Scherer Stefan (GER)2204Winterkamp Stefan0-133 ≣A10It (open) \
540Schildt Rene (GER)2007Glantz Robert (GER)21970-139 ≣A05It (open) \22 Oct 2008
45Schindler JosefPfeiffer Gerhard ...0-129 ≣E15Ch BRD
129Schinzel Wladysla...2380Boehlig Heinz Dr ...22371-030 ≣A15It \06 Jun 1978
271Schirm Friedmar (...2251Giehring Sebastia...22421-027 ≣A05Bundesliga (2nd) ...