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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
56Stekelenburg ADaamen Ferry (NED)20631-028 ≣D85Ch Netherlands (o...
58OudVan Welzen1-024 ≣D85corr.
60MilzNeihs Harald (AUT)21830-131 ≣D85It
73Balthasar ABauer Werner (GER)19720-128 ≣D85corr.
64Petrov Peter2325Pamula0-136 ≣D85corr.
65Priems PieterBoekelman J1-025 ≣D85corr.
66Knaak Rainer (GER)2505Gauglitz Gernot (...23101-032 ≣D85Ch DDR
67Balashov Yuri S (...2545Polovodin Igor A ...24351-031 ≣D85Ch URS (1 liga)
68Peev Peicho (BUL)2284Honfi Karoly (HUN)23651-032 ≣D85?
69Hernik MiroslavKassatschki1-021 ≣D85corr.
70Hanauer Andre1955Popov Ivan (SRB)22421-029 ≣D85Europe Tournament...
71Staniszewski Piot...2420Tomaszewski Roman...23321-034 ≣D85Ch Poland
74Baumann WalterBlosze Winfried (...19141-039 ≣D85corr.
75Timme Karin Dr (GER)2116Prussas C1-038 ≣D85Ch DDR (w)
78Nieuwenhuis Piete...2370Timman Jan H (NED)26200-137 ≣D85It (thematic)
79Nunn John D M (ENG)2590De Jong Tom (NED)22951-031 ≣D85It (thematic)
80Van Der Tuuk Jaap...2218Schenk Andreas (GER)24991-026 ≣D85It (thematic)
81Schoen Wolfram (GER)2403Candea Gheorghe (...21391-029 ≣D85?
82Fekete Istvan (HUN)2062Mueller Friedrich...20851-037 ≣D85corr.
83Liegel RGerhardt Frank (GER)21370-123 ≣D85corr.
84Murach KKohl1-036 ≣D85corr.
85Boensch Uwe (GER)2530Piesina Gintautas...23250-131 ≣D85Ch Hungary (open)
86Hauke Christian (...2197Saenger Thomas1-028 ≣D85It (open) (b)
87Bus Mariusz (POL)2372Bugajski Robert (...22011-029 ≣D85Ch Poland (team)
90Lputian Smbat G (...2540Mihalcisin Adrian...25000-136 ≣D85Ch URS (1 liga)
91Kaidanov Gregory ...2420Vyzmanavin Alexey...25401-034 ≣D85?
92Pekarek Ales (CZE)2406Stohl Igor (SVK)24651-032 ≣D85Ch Czechoslovakia
94Bareev Evgeny (RUS)2555Lputian Smbat G (...25400-135 ≣D85It (cat.11)
99Neverov Valeriy (...2440Huzman Alexander ...25001-021 ≣D85Ch URS (young mas...
101Garcia Wilfredo (...2050Alonso Rene (CUB)23600-138 ≣D85?
102Miralles Gilles (...2470Atanasijadis Anti...22801-039 ≣D85It
103Rubio Purrinos Hu...2235Canela Teresa (ESP)21450-127 ≣D85It (open)
104Roemer Ulrich (GER)2292Schneider Daniel ...19301-031 ≣D85It (open)
105Piskov Yury (RUS)2415Lputian Smbat G (...25401-025 ≣D85It (open)
295Avlasenko Vladimi...Melnikov Stepan (...1-026 ≣D85It (open) (corr.)
106Browne Walter S (...2449Keyes1-039 ≣D85It (open)
108Zueger Beat (SUI)2445Gavrikov Viktor (...25450-133 ≣D85It (cat.10)
109Bareev Evgeny (RUS)2560Spiriev Peter (HUN)22451-036 ≣D85It (open)
110KaunonenLaurencena1-030 ≣D85Olympiad (corr.)
111Matt A (GER)Schwarz V1-033 ≣D85Ch DDR (corr.)
112Heinrich Hans (GER)2199Lauer F0-137 ≣D85corr.
115Sampakoski KimmoFroeberg Harri1-028 ≣D85Ch Finland (team)
116Dahl B (NOR)2310Weischede Thomas ...22761-038 ≣D85Bundesliga 1987/8...
117Michaelsen Nils (...2412Ruehrig Volkhard ...1-031 ≣D85Bundesliga 1988/89
118Niklasch Oliver (...2347Lund Thomas1-036 ≣D85Regionalliga NordS
119Lugovoi Aleksei (...2531Prosvirin1-029 ≣D85?
120Balashov Yuri S (...2540Sibarevic Milenko...23121-037 ≣D85It (open)
121Balashov Yuri S (...2540Hansen Curt (DEN)25201-036 ≣D85It (cat.11)
123Christiansen Larr...2575Rao Vivek (USA)24351-034 ≣D85It \
126Wilder Michael (USA)2505Kudrin Sergey (USA)25451-036 ≣D85Ch USA
127Moskalenko Viktor...2475Tesla Vladimir (SRB)22971-036 ≣D85It
128Kasparov Garry (RUS)2760Schweizer Wolfgang20251-028 ≣D85Simultan
129Amir Karim (PAK)2234Al-Ashhab Saamer ...22601-030 ≣D85Ch Asia (juniors)...
130Kishnev Sergey (RUS)2484Feldman Steven (USA)22411-040 ≣D85It (open) \
132Martinovsky Eugen...2299Kudrin Sergey (USA)25700-139 ≣D85It (open) \
133Raszler AManigk W0-136 ≣D85corr.
135PitsonNusby1-020 ≣D85corr.
137Oppici Gabriele (...1964Caprifichi1-028 ≣D85corr.
138Scaletti LBiondi Maurizio1-040 ≣D85corr.
140Polzin Rainer (GER)2469Byers1-026 ≣D85It (open)
142Browne Walter S (...2555Nickoloff Bryon (...24201-035 ≣D85It (open)
143Browne Walter S (...2555Nickoloff Bryon (...24201-032 ≣D85It (open)
145PinusBasok1-036 ≣D85corr.
147Rubio Nevado Pedr...2070Torres Dominguez ...21490-123 ≣D85Ch Spain
149Petran Pal (HUN)2410Vadasz Laszlo (HUN)22711-026 ≣D85It
151Peschel Andreas (...2168Bednorz Andreas0-127 ≣D85It (open) \
152OvergaardOnstad L1-025 ≣D85Ch Netherlands (c...
153Frederick Robert ...2210Guerra Daniel Rub...21291-023 ≣D85Europe Tournament...
154Packroff Hermann ...2187Dienes1-028 ≣D85Europe Tournament...
156Mesterton OlliPeltonen Pekka1-023 ≣D85?
158Hytonen Harri (FIN)2084Vuorikoski Jorma1-038 ≣D85Ch Club
159Haus Volker (GER)2201Haase Wolfgang (GER)20851-032D85Ch Hessen (qual)
160Johansson Victori...2181Gerelmaa Ulziybat...21201-037 ≣D85Olympiad
163Delgado Cespedes ...2270Colias Billy (USA)22900-132 ≣D85It (open)
164Birens Eric-Andre...1969Laroche P17101-033 ≣D85It (open) (b)
166Lukacs Peter (HUN)2500Luecke Norbert (GER)23531-031 ≣D85It \
167Schebler Gerhard ...2449Bednorz Andreas1-031 ≣D85It (open) \
168Kalesis Nikolaos ...2473Khenkin Igor (GER)26240-132 ≣D85It (open)
169Aagaard Jacob (SCO)2522Kulaots Kaido (EST)25921-034 ≣D85Ch Europe (juniors)
170Sygulski Artur (POL)2378Luecke Norbert (GER)23531-031 ≣D85Bundesliga 1990/91
172Norri Joose (FIN)2291Ebeling Mika (FIN)22680-135 ≣D85Ch Helsinki
173Forgo FerencHauck I1-035 ≣D85Ch Hungary (corr.)
174Medina Carrasco S...2176Fernandez Murga R...22300-123 ≣D85It (open)
175Camaly P2040Leroy Adrien (FRA)22391-037 ≣D85It (open)
176Elbilia Jacques (...2382Filipowicz Leszek...21751-036 ≣D85It (open)
177Stelzer Harald (GER)2272Metz Hartmut (GER)22960-139 ≣D85It
178Wuest Michael (GER)1961Vierling J1-030 ≣D85It (open) (b)
179Lueckerath Kristi...Claus Caroline (GER)20750-131 ≣D85Ch Germany (w) (o...
180Bellon Lopez Juan...2435Haas Carmi (SUI)22121-029 ≣D85It (open)
181Kurowski HMajewski Jan (POL)20260-127 ≣D85Ch Poland (corr.)
182Simonenko Sergei ...2389Malisauskas Vidma...25300-133 ≣D85Ch URS (corr.)
184Levitzkaja OPeptan Corina-Isa...24210-133 ≣D85Ch World (juniors...
185Abdul Moula Sabri...2189Quaresma Pedro1-034 ≣D85Ch World (juniors...
186Russo Guilherme M...2050Popovich Sviatosl...22330-132 ≣D85Tournament (team)
188Gustavsson Cyrill...2206Schnegelsberg Kar...20321-034 ≣D85Ch Hessen
189Danner Georg (AUT)2340Schnabel Ralf (GER)22411-027 ≣D85It (open)
191Insabato Giovanba...2130Agostini Valerio0-115 ≣D85?
192Stamenkovic Zoran...2418Filipovic Branko ...24031-028 ≣D85Ch Yugoslavia
194Ferreira Alberto ...Luyks Marinus (POR)21540-137 ≣D85Ch Portugal (1/2 ...
196Vargas JAAguiar Justo (CUB)20870-133 ≣D85Ch Andalucia (team)