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King's Indian, Petrosian System, Main line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. d5 Nbd7 8. Bg5

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
259Dittmar Thomas2003Hirn Oskar (GER)22090-135 ≣E90Ch Mittelfranken ...22 Oct 2006
306Rodriguez Rejano ...Medina Masdeu Ras...18280-123 ≣E90It (open)17 Aug 2011
209Toniutti Ezio (ARG)2069Mareco Sandro (ARG)25970-128 ≣E90Ch Argentina (jun...
258Gohla Ulf (GER)2206Michalik F20960-119 ≣E90Ch NRW07 Oct 2006
285Roberto JoseAsfora Marco (BRA)22311-030 ≣E90Tournament (Elo)27 Mar 2009
302Scholz Christian ...2387Poldauf Dirk (GER)23851-027 ≣E90Bundesliga 2010/1105 Feb 2011
185Kachiani-G Ketino...2427Eisenbeis Norman ...21790-135 ≣E90It (open)
205Nardin Flavij (SLO)1916Arduman Can (TUR)23790-135 ≣E90It (open)
234Krilov Sergey (RUS)2406Yarovov Grigory (...20071-030 ≣E90Ch Russia (junior...
252Sanetra Szymon (POL)2048Pigula Marek (POL)20761-025 ≣E90Tournament (Elo)14 Jul 2006
277Gulim MarceloBrandao Evandro (...20890-133 ≣E90It (open)21 Mar 2008
284Lada Marek (POL)2201Michniewski Tomas...22150-124 ≣E90Tournament (Elo) \17 Oct 2008
293Ruiz Vinals Matia...2101Alemany Jara Alej...17860-127 ≣E90Ch Spain02 Oct 2009
298Franca Veronika (...1774Bernik Alja (SLO)16901-025 ≣E90Ch Slovenia (juni...
176Hussey CKennedy Michael (...17991-035 ≣E90It (open) (b)
181Naumkin Igor (RUS)2475Piscopo Pierluigi...23731-033 ≣E90It (open) (a)
191Mimbela Lopez Mig...2222Lara Pueyo Felix ...18291-035 ≣E90It (open)
204Francois Jean (FRA)1832Majcherczyk Benja...20501-036 ≣E90It (open)
168Andres MontousseDiaz Caramazana J...19071-030 ≣E90Ch Asturias (team...
225Jehle Anja (GER)1963Laake Jasmin (GER)19650-128 ≣E90Ch Germany (junio...
240Zawierucha Aleksa...2042Czyz Artur (POL)19911-033 ≣E90Ch Poland (team) ...09 Sep 2004
249Antonova Nadezhda...1888Dauletova Gulmira...21510-131 ≣E90Olympiad (w)21 May 2006
269Aishwarya GorthySweety Patel (IND)19830-121E90Ch Asia (juniors)...27 Aug 2007
270Rizza Francesco (...2047Valguarnera Girol...21730-125 ≣E90It (open)02 Sep 2007
48Viglundsson Bjorg...2210Olafsson Thorvard...21741-034 ≣E90Ch Iceland
281Haas Bernhard (AUT)2004Hackbarth Wolfgan...21490-121 ≣E90Ch Austria (qual)23 Jul 2008
119Lyrberg Patrik (SWE)2405Bologan Viktor (MDA)26001-028 ≣E90It (open)
292Rusev Aleksandar ...2219Miotto Alessandro20261-031 ≣E90Ch Switzerland (t...06 Sep 2009
297Danes Jaroslav (CZE)2285Jacek Martin (CZE)22020-132 ≣E90Czech League 2009...
121Lyrberg Patrik (SWE)2405Ostergaard Dan (SWE)22421-033 ≣E90Cup Rilton
144Tonon Alessandro ...2235Babula0-135 ≣E90It (open)
175Sbarra Marco (ITA)2270De Palma Diego (ITA)21351-021 ≣E90It (open)
177Hussey CLoughran John (IRL)18991-033 ≣E90It (open) (b)
92Sachs Thomas (GER)1993Tutt B0-132 ≣E90It (open)
131Mai Thanh HuongTran T Minh Chau1-027 ≣E90Tournament (open)...
189Kaptsan Aron (CAN)2170Khedkar Jay S1-019 ≣E90Ch Manitoba (open)
192Gunyecz Zoltan (HUN)1978Zalai Mihaly (HUN)20680-125E90It (open) \18 Jul 1999
194Sole Rota David (...2082Masip Tressera Or...21101-028 ≣E90It (open)
158Korobov Ilya (RUS)2335Miskovsky Pavel (...21091-036 ≣E90It (open)
128Lyrberg Patrik (SWE)2400Poldauf Dirk (GER)24150-133 ≣E90It (open)
213Nikolaev Leonid (...2301Novikova Margarit...20931-028 ≣E90Memorial I.Stepichev
224Parraga Alejandro...2186Pizarro Marcelo (...1-030 ≣E90Ch Bolivia
141Polak Tomas (CZE)2445Mudrak Josef (CZE)23101-033 ≣E90Czech League 1995...
238Recine Leonel (URU)2041Genta Alejandro (...21450-117 ≣E90It05 Aug 2004
241Huss Andreas (SUI)2332Pinol Fabrice (SUI)20721-025 ≣E90It15 Sep 2004
243Cazzaniga Walter ...2077Bosi Clint (ITA)19901-033 ≣E90It (open)06 Dec 2004
146Soultatis Kostas ...2063Kaldelis E0-136E90It (open)
174Lyrberg Patrik (SWE)2415Mortensen Erling ...24650-123 ≣E90It (open)
114Hubert Ralf (GER)2293Tuerk Philipp (GER)21501-033 ≣E90It (open) \
65Mononen HeikkiAho Pauli1-036 ≣E90?
34Mazzoni Guy (FRA)2191Casa Alex (FRA)21931-030 ≣E90It (b)
90Minogina Tamara (...2244Rzepka R1-035 ≣E90It \
82Effert Kai (GER)2275Kahn Evarth Dr (HUN)22521-032 ≣E90It (b)
113Ravi Lanka (IND)2425Balasubramaniun R...22741-023 ≣E90It (open)
283Isella FacundoLopez Colon Franc...22490-130 ≣E90It \11 Oct 2008
153Aramuni Jorge Eli...2213Capanema Antonio1-035 ≣E90It (open)
169Ferreira Oscar (PAR)2286Zarza Ronald (PAR)20611-031 ≣E90Ch Paraguay
173Bongini MauroNapoli Ferdinando...17400-122 ≣E90Ch Provinciale CO
294Guerrero Dublas (...2236Parra Emiliano (CUB)21591-034 ≣E90Ch Provincial
296Rueggeberg Wilhel...1944Mueller Waldemar ...20890-133 ≣E90It (open) (seniors)09 Dec 2009
264Espinasseau Jerome1499Mamah Isabelle (FRA)16580-133 ≣E90It (open)09 Apr 2007
78Effert Kai (GER)2275Doerflinger Josef...22201-036 ≣E90Bundesliga 1988/8...
101Koch UdoSeywald Ralf0-128E90It (open)
126Halmos Ede (HUN)2097Balogh Bela (HUN)22200-132E90It (open) \
207Huss Andreas (SUI)2344Jovanovic Dobrica...21641-021 ≣E90It (open)
93Bollinger MPohl A0-131 ≣E90Ch Oberschwaben (b)
136Candela Perez Jos...2320Lanka Zigurds (LAT)24800-127 ≣E90It (open)
91Borst Johan (NED)2258Schenkel Edward0-133 ≣E90corr.
137Camarena Gimenez ...2397Grau Dominguez En...22060-132 ≣E90Ch Aragon (team)
59Krasikova NKoteles1-032 ≣E90Ch \
199Scholz Christian ...2324Eschle Hubert (GER)19451-032 ≣E90It (open)26 Dec 2000
13Kolarov Atanas S ...2415Stefanov Josif1-025 ≣E90Ch Bulgaria11 Feb 1962
15Najdorf Miguel (POL)2445Byrne Robert E (USA)24340-136 ≣E90?
53Chen Tsung (GER)2285Olafsson Helgi (ISL)22700-129 ≣E90Olympiad
107Von Malm HeikeCleven Maria (GER)20570-135 ≣E90NRW-liga (juniors...
151Mangwengwende Joh...2108Williams Leighton...21351-031 ≣E90Olympiad
21Keres Paul (EST)2580Walther Edgar (SUI)22541-036 ≣E90Olympiad
22Wade Robert G (ENG)2148Myant MR1-031 ≣E90Tournament
25Kapengut Albert Z...2402Dzindzichashvili ...25501-033 ≣E90Ch URS (1/2 final)
149Babula Vlastimil ...2545Stocek Jiri (CZE)24601-029 ≣E90It (open) \
28Balashov Yuri S (...2439Penrose Jonathan ...24051-026 ≣E90It
231Tencati Giuseppe ...2096Terbonati Paolo (...19311-025 ≣E90Tournament (weekend)19 Oct 2003
155Lanin BorisOleshkovich V0-123 ≣E90Ch Russia (corr.)...
32SulkinVooremaa Andres (...22401-035 ≣E90?
287Sbarra Marco (ITA)2219Volpi Davide (ITA)20051-028 ≣E90Tournament (open)02 May 2009
222Souza Neves Andre...2200Leda Cayro1-029 ≣E90It (open) \
247Naumkin Igor (RUS)2495Scerbo Antonio (ITA)21071-036 ≣E90It (open)26 Apr 2006
139Lobato Gomez Juan...Ignacio Bajo0-127 ≣E90Ch Asturias (team...
58Cramling Dan (SWE)2392Wagman Stuart (USA)21251-033 ≣E90It
63Schulze Hanjo (GER)2215Kaminski Uwe (GER)23560-132 ≣E90It \
9O'kelly De Galway...2460Gligoric Svetozar...24470-136 ≣E90Izt
161Van Dongen Cor (NED)2354De Pender Paul (NED)21910-134 ≣E90Ch Netherlands (j...
242Larrea Manuel (URU)2279Mareco Sandro (ARG)21871-022 ≣E90Memorial M.Najdor...04 Oct 2004
104MaffeiVari1-036 ≣E90corr.
217Hormaeche Pablo (...2112Diaz Fuenzalida J...20361-032 ≣E90Ch Pan-American (...
123Candela Perez Jos...2310De Esteban Jose1-036 ≣E90It (open)
80Pergericht Daniel...2285Bernard Christoph...16940-134 ≣E90It
150Barasiant Mariana...2043Aksionova Tatiana...21920-135 ≣E90Ch Europe (junior...
216Kolesnikov Evgeny...2300Pileckis Emilis (...21880-120 ≣E90Ch Europe (junior...
312Rodriguez Sofia (...Mesa Brenda Sofia...1-031 ≣E90Ch Colombia (juni...18 Jun 2012