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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
169Aagaard Jacob (SCO)2522Kulaots Kaido (EST)25921-034 ≣D85Ch Europe (juniors)
61Aaltio Erkki (FIN)2133Haapanen Kalle0-130 ≣D85corr.
185Abdul Moula Sabri...2189Quaresma Pedro1-034 ≣D85Ch World (juniors...
23Acosta Tomas (ARG)2275Farah Rodolfo (ARG)21521-040 ≣D85It (open)
221Adler Bo (SWE)2171Winsnes Rikard (SWE)24090-137 ≣D85Cup Rilton
462Adler Bo (SWE)2185Akesson Ralf (SWE)24670-133 ≣D85Cup Rilton30 Dec 2006
312Adnan Alrais (UAE)2132Abdullah Mansoor ...22901-038 ≣D85It (open)
146Aewerdieck UdoLuckow Rolf (GER)21720-137 ≣A16Ch Schleswig Hols...
225Aguilar AMLopez S0-129D85Ch Albacete (qual.)
233Ahlander Bjorn (SWE)2405Hellers Ferdinand...25600-131 ≣D85It
388Ahlander Bjorn (SWE)2411Ernst Thomas (SWE)24631-032 ≣D85Ch Sweden
171Ahonen JariEbeling Mika (FIN)22680-128 ≣D85Ch Club
365Aijala Jouko (FIN)2167Jantti Petri (FIN)20871-032 ≣D85It (open)
460Akhmadeev Valery ...2244Glazkov Arseny (RUS)20391-039 ≣D85Memorial N.Aratov...04 Dec 2006
351Albers Taco JanKnight Timothy R1-021 ≣D85It (open) \
423Alexanian Nelli (...2161Orlyanskaya Darya...21051-027 ≣D85Ch Ukraine (w)19 May 2005
362Almer Gerald (AUT)2102Hoellrigl Wilfrie...21980-131 ≣D85It (open)
546Alvarez Nistal Da...1868Villar Perez Samu...20750-125 ≣D85It (open)30 Dec 2009
129Amir Karim (PAK)2234Al-Ashhab Saamer ...22601-030 ≣D85Ch Asia (juniors)...
272Ananchenko Igor (...2285Krivonogov A (RUS)23150-129 ≣D85Cup Russia (open)
560Andersson Kaj (SWE)2093Soderborg Berndt ...21110-129 ≣D85Ch Sweden (seniors)10 Jul 2010
364Andrade Ulises (VEN)2246Vasquez Michael (...16531-025 ≣D85Ch Pan-American (...
400Andreeva Arina (RUS)2001Gorlova Marina (RUS)18691-030 ≣D85Ch Russia (junior...
561Antonov Nikola (BUL)1704Sisoev Robert (BUL)16151-034 ≣D85It \18 Jul 2010
327Arnalds Stefan AHalldorsson Halld...22090-132 ≣D85It (open)
375Atalik Suat (BIH)2581Ruck Robert (HUN)25831-033 ≣D85Ch Slovenia (team)23 Nov 2002
295Avlasenko Vladimi...Melnikov Stepan (...1-026 ≣D85It (open) (corr.)
326Bacherler ThomasDeues Erik (GER)20251-030 ≣D85It (open)
120Balashov Yuri S (...2540Sibarevic Milenko...23121-037 ≣D85It (open)
121Balashov Yuri S (...2540Hansen Curt (DEN)25201-036 ≣D85It (cat.11)
67Balashov Yuri S (...2545Polovodin Igor A ...24351-031 ≣D85Ch URS (1 liga)
73Balthasar ABauer Werner (GER)19720-128 ≣D85corr.
3Bannik Anatoly (GER)2175Novotelnov Nikola...0-137 ≣D85Ch URS (team)
585Baraeva Irina (RUS)2204Gaboyan Susanna (...18531-029 ≣D85Ch Europe (junior...13 Sep 2011
580Baraeva Irina (RUS)2187Zaitsev Evgeniy (...1-026 ≣D85Memorial L.Poluga...07 Jul 2011
94Bareev Evgeny (RUS)2555Lputian Smbat G (...25400-135 ≣D85It (cat.11)
109Bareev Evgeny (RUS)2560Spiriev Peter (HUN)22451-036 ≣D85It (open)
306Barkhagen Jonas (...2442Akesson Ralf (SWE)25350-134 ≣D85Cup Rilton
74Baumann WalterBlosze Winfried (...19141-039 ≣D85corr.
355Bayram Yakup (TUR)2308Arman Deniz (TUR)21511-027 ≣D85Ch Europe
435Becker SoenkeKemeny Matthias (...20460-140 ≣D85Ch Schleswig Hols...
347Bedirov Timur (RUS)2253Isaev Magomed (RUS)22261-031 ≣D85Ch Russia (junior...
180Bellon Lopez Juan...2435Haas Carmi (SUI)22121-029 ≣D85It (open)
554Benitez Carlos (COL)2160Guerrero Juan Car...22580-123 ≣D85It (open)24 Apr 2010
247Bergmans Norbert ...2111Hopkinson1-030 ≣A16Cup European Club
485Berg MargarSamuelsen Carl El...22970-135 ≣D85Ch Faroe Islands ...28 Oct 2007
240Berrotaran Esteba...2199Arrieta Hector (ARG)21050-134 ≣D85Tournament (team)
164Birens Eric-Andre...1969Laroche P17101-033 ≣D85It (open) (b)
398Bitkinin Lenar (RUS)2059Sitnikov S (RUS)22311-035 ≣D85Ch Russia (junior...
415Blazek Jiri (CZE)2207Burdik Lubomir (CZE)21841-032 ≣D85Czech League 2004...06 Feb 2005
342Bloch Pawel (POL)2069Szymanski Piotr (...21100-120 ≣D85Ch Poland (team) ...
85Boensch Uwe (GER)2530Piesina Gintautas...23250-131 ≣D85Ch Hungary (open)
505Boiko YaroslavKopeikin Sergey0-134 ≣D85Ukrainian Games (...19 May 2008
395Bojchev Marian (BUL)2237Petkov Atanas (BUL)20311-039 ≣D85Ch Bulgaria (juni...05 Feb 2004
44Borchardt Adam (POL)1967Lipski Tadeusz (POL)20391-025 ≣D85Ch Poland20 Feb 1977
40Borchardt Adam (POL)1967Lipski Tadeusz (POL)20391-025 ≣D85Ch Poland
553Braun Marek (CZE)2153Voracek Miroslav ...21841-035 ≣D85Czech League 2009...14 Mar 2010
602Brogaard LarsJohansson Anders ...20290-117 ≣D85It \28 Jul 2012
1Bronstein David I...2432Boleslavsky Isaac...25601-032 ≣D85
142Browne Walter S (...2555Nickoloff Bryon (...24201-035 ≣D85It (open)
143Browne Walter S (...2555Nickoloff Bryon (...24201-032 ≣D85It (open)
106Browne Walter S (...2449Keyes1-039 ≣D85It (open)
470Brugo Marco (ITA)2104Valsecchi Alessio...22150-128 ≣D85Tournament (weeke...
198Budraitis Audrius...2262Akoral S0-128 ≣D85Ch Sweden (open)
481Buivys Martynas (...1807Traczewski Wojcie...19650-134 ≣D85It (open)22 Aug 2007
451Burlov Vassili (RUS)2413Druzhinina Olga (...22451-030 ≣D85It (open) \06 Aug 2006
87Bus Mariusz (POL)2372Bugajski Robert (...22011-029 ≣D85Ch Poland (team)
414Butterworth Paul1910Twitchell Neville...20000-129 ≣D85Ch England (team)...16 Jan 2005
175Camaly P2040Leroy Adrien (FRA)22391-037 ≣D85It (open)
541Cardili Mariano (...2106Pienabarca Nicola...20811-034 ≣D85It (open)24 Oct 2009
513Cardili Mariano (...2123Angelini Marco (ITA)20340-135 ≣D85It (open)23 Aug 2008
273Cedikova Katerina...2212Kalod Radek (CZE)24300-131 ≣D85It (open) \
292Chang Suzana (BRA)2001Guimaraes Wagner ...22520-129 ≣D85Ch Brazil (1/2 fi...
523Chaves Jorge Anto...2102Bil Angelo (BRA)21970-132 ≣D85Tournament (open)07 Mar 2009
224Chevrier Thomas (...2210Janotta Patrick (...21401-036 ≣D85Ch France (open) (a)19 Aug 1993
316ChremosAgouras Ioannis0-129 ≣D85It (open)
124Christiansen Larr...2575Korchnoi Viktor (...25950-132 ≣D85It (cat.15)
123Christiansen Larr...2575Rao Vivek (USA)24351-034 ≣D85It \
162ChuikovTagirov1-032 ≣D85corr.
431Claassen Chris (USA)2071Lee Marvin (USA)19191-036 ≣D85It (open)17 Oct 2005
477Clemens Adrian (NED)2316Schut Lisa (NED)19761-036 ≣D85It (open)27 May 2007
474Collins Alan (ENG)1851Webster Richard J...19640-121 ≣D85It (open)07 Apr 2007
592Colombo Camila (URU)Lopez Falcon Jorg...1-025 ≣D85Ch Uruguay (1/2 f...19 Feb 2012
574Colpe Malte (GER)2245Wedrychowski Lukas16451-025 ≣D85Ch Germany (junio...01 May 2011
302Cooke Eric (USA)2250Lapshun Yury (USA)25070-139 ≣D85Ch Manhattan Ches...
45Cooper John G (WLS)2315Whiteley Andrew J...22801-035 ≣D85Ch Great Britain
245Cornelisse Johnny...2217De Visser P0-120 ≣D85It (open)
590Coursaget Nicolas...2309Shilov Sergej (UKR)21881-035 ≣D85It (open)30 Dec 2011
562Coutinho Marco de...Yunes David Teles...18470-118 ≣D85Tournament (open)24 Jul 2010
413Coutton Sylvain (...2146Grollemund Bertra...21631-030 ≣D85Ch France (team) ...08 Jan 2005
276Cramling Pia (SWE)2520Malisauskas Vidma...25151-031 ≣D85Memorial P.Keres ...
307Cramling Pia (SWE)2504Holmsten Aleksei ...23801-037 ≣D85Cup Rilton
193Cramling Pia (SWE)2530Tsuboi Edson Kenj...23501-039 ≣D85Olympiad
373Cubero Ferreiro R...2124Gonzalez Diaz Die...22880-130 ≣D85Ch Spain (univers...
325Cubero Ferreiro R...2126Iglesias Iglesias...1-039 ≣D85It (open)
572Cuesta Bejarano M...2016Zabala Fidel (COL)20050-132 ≣D85It (open)
116Dahl B (NOR)2310Weischede Thomas ...22761-038 ≣D85Bundesliga 1987/8...
10Damjanovic Mato (...2303Mihaljcisin Mihaj...22801-027 ≣D85Ch Yugoslavia
189Danner Georg (AUT)2340Schnabel Ralf (GER)22411-027 ≣D85It (open)
475Da Silva Eduardo ...Utiyama Marcel He...21670-127 ≣D85It (open)30 Apr 2007