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Grünfeld, Spassky Variation, Main line, 13.Bd3 Notation: 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 0-0 8. Ne2 c5 9. 0-0 Nc6 10. Be3 cxd4 11. cxd4 Bg4 12. f3 Na5 13. Bd3

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
587Doskar Miloslav (...1757Siebenburger Vlas...20770-135 ≣D85It (open)24 Sep 2011
588Owiny FestoKaamu Joseph1-035 ≣D85Ch Uganda
20Yabra Freddy (DOM)Moraza Manuel (PUR)21871-035 ≣D85Ch Pan-American
227Jordan Raul (GER)2179Klee Mario (GER)21731-035 ≣D85Ch Germany (junio...
122Utemov Vladimir (...2385Obodchuk Andrei (...23840-135 ≣D85Ch URS (club)
7Espinosa Rafael M...2403Gieselbrecht J1-035 ≣D85Olympiad (corr.)
398Bitkinin Lenar (RUS)2059Sitnikov S (RUS)22311-035 ≣D85Ch Russia (junior...
448Meskovs Nikita (LAT)2041Rosko Lubos (CZE)22030-135 ≣D85It (open) (team)14 Jul 2006
63Halmi PenttiFunck Kaj1-035 ≣D85?
537Simon Tamas (HUN)1808Solti Gergely (HUN)18391-035 ≣D85Tournament (Elo) (c)13 Aug 2009
173Forgo FerencHauck I1-035 ≣D85Ch Hungary (corr.)
223Gentes Kevin (CAN)2266Burstow John (CAN)22800-135 ≣D85Memorial Kent Oli...
62Letic Stevan (SRB)2104Mooij Walter0-135 ≣D85Memorial Heilimo ...
172Norri Joose (FIN)2291Ebeling Mika (FIN)22680-135 ≣D85Ch Helsinki
553Braun Marek (CZE)2153Voracek Miroslav ...21841-035 ≣D85Czech League 2009...14 Mar 2010
155Heinasmaki MiikkaHerlin Sam1-035 ≣D85?
513Cardili Mariano (...2123Angelini Marco (ITA)20340-135 ≣D85It (open)23 Aug 2008
517Mareco Sandro (ARG)2481Pierrot Facundo (...24201-035 ≣D85It \03 Dec 2008
301Phan Duy Thanh (VIE)Truong Duc Chien ...22000-135 ≣D85Ch Vietnam (junio...
432Harika Dronavalli...2392Khotenashvili Bel...22881-035 ≣D85Ch World (juniors...17 Nov 2005
505Boiko YaroslavKopeikin Sergey0-134 ≣D85Ukrainian Games (...19 May 2008
123Christiansen Larr...2575Rao Vivek (USA)24351-034 ≣D85It \
498Topalov Veselin (...2791Shirov Alexei (ESP)27261-034 ≣D85It (cat.21)03 Mar 2008
187Meskanen Vesa (FIN)2065Varho Ilkka1-034 ≣D85It (open)
496Stepanov Igor (RUS)2052Pristalov Evgeny ...18650-134 ≣D85It (open) (b)04 Feb 2008
504Thomas Robert K (...2156Truman Richard G ...20351-034 ≣D85Ch England (team)...03 May 2008
436Zhao Zong-Yuan (AUS)2455Obst James (AUS)21061-034 ≣D85Ch Australia03 Jan 2006
262Muysers Hendrik1865Klehr Winfried (GER)20370-134 ≣D85It (open)
300Peters Stephen G ...2158Lam Daniel1-034 ≣D85It (open)
91Kaidanov Gregory ...2420Vyzmanavin Alexey...25401-034 ≣D85?
374Hellwig Thomas (GER)2046Barskij Aleksandr...20091-034 ≣D85It (open)
378Gutierrez Oscar (...2093Carvajal Jonathan...21251-034 ≣D85Ch Costa Rica
71Staniszewski Piot...2420Tomaszewski Roman...23321-034 ≣D85Ch Poland
240Berrotaran Esteba...2199Arrieta Hector (ARG)21050-134 ≣D85Tournament (team)
379Marsh SeanRound Michael0-134 ≣D85It (open)
321Martinez Martin D...2283Herrera Irisberto...24671-034 ≣D85It (open)
481Buivys Martynas (...1807Traczewski Wojcie...19650-134 ≣D85It (open)22 Aug 2007
463Goles Giovano (BRA)1938Utiyama Marcel He...0-134 ≣D85Ch Region15 Jan 2007
219Mesaric DSkrbin Kresimir (...22680-134 ≣D85Cup Croatia
593Duessel Udo (GER)Regez Markus (SUI)1-034 ≣D85Oberliga Baden 20...26 Feb 2012
352Hoelzl Juergen (AUT)1496Kreisl Robert (AUT)21210-134 ≣D85Ch Austria (junio...
459Kratochvil Karel ...2124Sekanina Jiri (CZE)21511-034 ≣D85Czech League 2006...03 Dec 2006
306Barkhagen Jonas (...2442Akesson Ralf (SWE)25350-134 ≣D85Cup Rilton
561Antonov Nikola (BUL)1704Sisoev Robert (BUL)16151-034 ≣D85It \18 Jul 2010
141Kiselev Sergey (RUS)2445Brdicko Petr (CZE)22550-134 ≣D85It (open) \
598Nedic Dusan (GER)2296Bildat Juergen (GER)20901-034A16It (open)08 Jul 2012
408Holst Conny (SWE)2163Duesterwald Marc ...22211-034 ≣D85Cup European Club05 Oct 2004
394Surendran N (IND)2026Konguvel Ponnuswa...24030-134 ≣D85It (open)21 Jan 2004
30Shirazi Kamran (FRA)2285Behroozi Ev0-134 ≣D85Ch Iran
188Gustavsson Cyrill...2206Schnegelsberg Kar...20321-034 ≣D85Ch Hessen
541Cardili Mariano (...2106Pienabarca Nicola...20811-034 ≣D85It (open)24 Oct 2009
185Abdul Moula Sabri...2189Quaresma Pedro1-034 ≣D85Ch World (juniors...
442Stein Marco (GER)2128Schneider Udo (GER)19121-034 ≣D85Ch Hessen (b)13 Apr 2006
525Real De Azua Erne...2445Contin Daniel (ITA)22791-034 ≣D85It (juniors) (und...30 Mar 2009
169Aagaard Jacob (SCO)2522Kulaots Kaido (EST)25921-034 ≣D85Ch Europe (juniors)
389Rodriguez A IOlivera Gutierrez...20660-134 ≣D85Ch Spain (team) \
478Mayhew Andrew (ENG)2058Poobalasingam Pet...21580-134 ≣D85It (open)16 Jun 2007
93Pekarek Ales (CZE)2406Schmidt Wlodzimie...24700-133 ≣D85It \
111Matt A (GER)Schwarz V1-033 ≣D85Ch DDR (corr.)
108Zueger Beat (SUI)2445Gavrikov Viktor (...25450-133 ≣D85It (cat.10)
212Fritsch GPerlitz Sven (GER)20850-133 ≣D85Oberliga East 199...
462Adler Bo (SWE)2185Akesson Ralf (SWE)24670-133 ≣D85Cup Rilton30 Dec 2006
287Voracek Miroslav ...2210Sebenik Matej (SLO)21551-033 ≣D85Ch Europe (junior...
375Atalik Suat (BIH)2581Ruck Robert (HUN)25831-033 ≣D85Ch Slovenia (team)23 Nov 2002
429Klegon Matthew L ...2131Enkin Max (USA)22610-133 ≣D85It (open)04 Sep 2005
49Hanko Pavol (SVK)2138Fabry Robert (SVK)21770-133 ≣D85It \
24Vaganian Rafael A...2510Mukhin Evgeny B (...22940-133 ≣D85Olympiad URS
573Mashal Ruben (ARG)2101Paveto Kevin (ARG)22351-033 ≣D85It (open)18 Apr 2011
12Sloth Jorn (DEN)2328Harju Antero1-033 ≣D85?
472Simek Petr (CZE)2231Rosko Lubos (CZE)22320-133 ≣D85Czech League 2006...01 Apr 2007
565Fabian Gaston (ARG)2266Mendez Ignacio (ARG)18741-033 ≣D85It (open)12 Oct 2010
246Mitenkov Alexey (...2430Kriventsov Stanis...23151-033 ≣D85Ch Moscow (open)
95Pons Morro Pedro ...2148Casares F1-033 ≣D85Ch Spain (team)
14Thorbergsson Frey...2340Gligoric Svetozar...24470-133 ≣D85It
311Hohl Matthias (HUN)2066Gonda Laszlo (HUN)20890-133 ≣D85Tournament (Elo)
199Dauenheimer Torst...2234Pulina Dirk1-033 ≣D85Ch Rheinhessen (o...
196Vargas JAAguiar Justo (CUB)20870-133 ≣D85Ch Andalucia (team)
57Zita Frantisek (CZE)Garubba1-033 ≣D85corr.
526Peralta Fernando ...2545Reimche Vadim (GER)20851-033 ≣D85It (open)09 Apr 2009
184Levitzkaja OPeptan Corina-Isa...24210-133 ≣D85Ch World (juniors...
182Simonenko Sergei ...2389Malisauskas Vidma...25300-133 ≣D85Ch URS (corr.)
253Juhasz Bela (HUN)2124Szekeres Sandor (...20571-033 ≣D85It (open)
150Lukacs Peter (HUN)2404Monda Laszlo (HUN)21291-033 ≣D85It (open) \
164Birens Eric-Andre...1969Laroche P17101-033 ≣D85It (open) (b)
511Sidorov Vjacheslav PKhanov Vjacheslav...21440-133 ≣D85Ch Region06 Aug 2008
452Hajnrych Jakub (POL)1955Rogalski Piotr (POL)17601-033 ≣D85Memorial Kochan09 Aug 2006
522Juez Villar Erik ...1938Hernandez Lopez D...19551-033D85Tournament (team) \
143Browne Walter S (...2555Nickoloff Bryon (...24201-032 ≣D85It (open)
317Gorecki Zbigniew ...2112Ernst Sipke (NED)23730-132 ≣D85It (open)
229Martin Allende Jo...2117Fluvia Frigola Jo...20780-132D85Ch Catalunia (team)
497Groschup G1886Potthammel Joerg ...20610-132 ≣D85Ch Europe (senior...14 Feb 2008
343Haller Peter (GER)2026Kessler Stefan (GER)20841-032D85It \
217Lewandowicz PChowaniec W0-132D85corr.
92Pekarek Ales (CZE)2406Stohl Igor (SVK)24651-032 ≣D85Ch Czechoslovakia
124Christiansen Larr...2575Korchnoi Viktor (...25950-132 ≣D85It (cat.15)
68Peev Peicho (BUL)2284Honfi Karoly (HUN)23651-032 ≣D85?
66Knaak Rainer (GER)2505Gauglitz Gernot (...23101-032 ≣D85Ch DDR
547Shevtsov KirillUsachev Oleg (RUS)21271-032 ≣D85Tournament (open)06 Jan 2010
491Kadziolka Beata (...2295Schmidt Wlodzimie...24100-132 ≣D85Ch Europe (active)16 Dec 2007
54JacekAdamec Antonin (CZE)22061-032 ≣D85corr.