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Sicilian, Najdorf, 7...Qb6 including Poisoned Pawn Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6

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
270Olbrisch Manfred ...2063Paulus H1-025 ≣B90corr.
723Oliveira Silvio E...2345Quiroga Facundo (...23351-018 ≣B90It (a)26 Mar 2008
615Olsen Andrei (NOR)1811Bjerke Silje (NOR)21330-122 ≣B53It (open)26 Mar 2005
15Olsson Ake (SWE)2255Burehall Arne1-026 ≣B90Ch Sweden
261Olszewski WStoklas Vincent1-08 ≣B28Europe Tournament...
807Omarsson Dadi (ISL)2091Vukcevic Nemanja ...19961-025 ≣B90Ch Europe (junior...09 Sep 2009
885Oms Fuentes Lluis...2314Gardela Batlle Jo...22021-023 ≣B90Ch Catalunia (tea...05 Mar 2011
178Onime IAlzate Dario (COL)23650-127 ≣B90Olympiad
299Oppici Gabriele (...1964Rolle Hannes1-024 ≣B90World Tournament ...
674Osswald Luis (GER)1965Siebarth Raiko (GER)22460-117 ≣B90Ch Germany (junio...20 May 2007
866Pacher Milan (SVK)2449Kalugampitiya R S...20951-021 ≣B90Ch World (univers...05 Sep 2010
802Pac Maciej (POL)1830Mazalon Mariusz (...21670-127 ≣B90It (open) (b)20 Aug 2009
494Padeiro Jose (POR)2188Guerra Joao1-024B90It (open)
396Pagnoncelli Marco...2121Battaggia Piergio...20430-128 ≣B90It (open)
35Pahta PenttiMolarius Reijo (FIN)1-028 ≣B90?
36Pahta PenttiSaily Frans1-019 ≣B90?
61Palmiotto Fiorent...2104Scalisi Salvatore1-028 ≣B90?
155Palomaki PekkaSchlupeck Helmut1-026 ≣B90?
894Papakonstantinou ...1809Pauloy Dimitrios-...17321-018 ≣B90Ch Greece (junior...25 Jun 2011
187Papudzinski HenrykHaller Christoph ...21951-023 ≣B90Europe Tournament...
16Parma Bruno (SLO)2480Ramirez Guerrero ...20361-025 ≣B90?
217Parodi PedroCranbourne Carlos...22611-027 ≣B90corr.
447Pascute BruceGonzalez De Cima ...0-125 ≣B90Tournament
232Paulucci NestorRiccio Ernesto1-021 ≣B90Ch Argentina (corr.)
726Pavlenko Alexandr...2169Akkozov Berik (KAZ)22570-123 ≣B53Ch Kazakhstan21 Apr 2008
509Pavlovic Milos (SRB)2488Roschina Tatiana ...23001-026 ≣B90It (open)
384Pax Horst Dr (GER)2146Puth Dieter (GER)21710-117 ≣B90Ch Reinland
199Pellant Timothy (...2265Wong Phil20841-018 ≣B90It \
919Perez Fernando David1692Zuleta Juan Esteban18030-124 ≣B90Ch Department (ju...23 Mar 2012
905Perez Gormaz Matias2188Olivares Olivares...22031-025 ≣B90Tournament (open)14 Sep 2011
719Perez Luis Manuel...2521Naranjo Moreno An...22741-026 ≣B90It (open)26 Feb 2008
502Perez Luis Manuel...2381Castro Luaces Jos...21531-024 ≣B90It (open)
317Perez Orelvis (CUB)2451Menvielle Lacourr...22611-022 ≣B90It (open)
697Perez Orelvis (CUB)2421Martinez Escriban...20271-026 ≣B90It (open)10 Oct 2007
391Perez Pastora Eva...2180Pazo R0-115 ≣B90Tournament
365Persson Borje (SWE)1947Persson Conny0-128 ≣B90Ch Sweden (corr.)
855Petersen Steen (DEN)2157Skjoldager Mikael...19631-026 ≣B50It (open) \02 Aug 2010
322PetraruPopescu1-023 ≣B90Ch Romania (corr.)
860Petras Marian (SVK)1767Lukac Tomas (SVK)19800-125 ≣B90It (open)25 Aug 2010
870Petrescu Cristian...2090Bonte Andrei (ROM)23620-125 ≣B90Tournament (team)07 Oct 2010
100Petrik Karol (SVK)2082Meissner Hans-Jue...22490-126 ≣B90Match \
573Petrossian Armen ...2329Piquemal Christia...20541-025 ≣B90It (open)
582Petrossian Armen ...2329Lopez Gracia Fern...23421-025 ≣B53Ch France (team) ...06 Dec 2003
84Petrushin Alexand...2434Dementiev Oleg I ...24901-025 ≣B90?
818Phadke Sohan (IND)2266Tan Weiliang (SIN)21630-116 ≣B90It \12 Dec 2009
700Pierangeli Andrea...2020Sigillo Carmelo (...17731-025 ≣B90It (open)22 Oct 2007
69PihelashviliAmakov0-119 ≣B90?
676Pijpers Arthur (NED)2000Dunn Alan (NZL)21351-020 ≣B90It (open)27 May 2007
451Pilla GiuseppeMrdja Milan (CRO)24301-020 ≣B90It (open)
68Piotrowski OPytel0-123 ≣B90corr.
336Pirarev WParedes Prat Jose...20730-122 ≣B90Olympiad (corr.)
377Pisarev VRadzhabov V1-022 ≣B90Ch URS (team) (co...
66Piuva Matti (FIN)2205Jaderholm Bo (FIN)18791-022 ≣B90?
236Pokojowczyk Jerzy...2340Stempin Pawel (POL)24200-126 ≣B90Ch Poland
704Poleshchuk Dmitri...2162Darini Pouria (IRI)21590-123 ≣B90Ch World (juniors...18 Nov 2007
282Polivalov VBechalov V1-027 ≣B90corr.
203Ponisch EPodzielny Karl-He...24051-025 ≣B90Europe Tournament...
832Popov Ivan (RUS)2606Nepomniachtchi Ia...27060-124 ≣B90Ch Russia (junior...20 Apr 2010
74Porreca Giorgio (...Capuano Ruggiero ...21701-027 ≣B90corr.
917Porter Sam J (ENG)1809Mitrovic Boris (SLO)21520-128 ≣B53Ch British Univer...25 Feb 2012
75Postpischl DomenicoDe Sortis Sergio1-019 ≣B90corr.
610Potebnya Vladimir...2142Samsonkin Artem (...23450-124 ≣B90It (cat.3)23 Jan 2005
79Poulsen Allan (DEN)2242Clara Hans Joachi...23790-126 ≣B90Ch World (students)
194Preussner MStrausz Janos (FRA)21501-028 ≣B90corr.
738Prikhodko Sergey ...2071Birjukov Sergey (...22870-112 ≣B90Tournament (Elo)09 Jul 2008
712Principe Alexande...1897Llacsahuanga Dieg...18101-025 ≣B90Memorial Jose Mar...22 Jan 2008
128Prochaska PKolbas Walrath1-022 ≣B90It \
29Prodanovic MilijanLakovljevic1-017 ≣B90Ch Yugoslavia (co...
363Prokopowicz Czesl...2154Mochocki P1-019 ≣B90corr.
542Pruess David (USA)2346Shahade Gregory (...24520-127 ≣B90Tournament \
622Pruijssers Roelan...2310Senff Martin (GER)24690-124 ≣B90It (open)18 Jul 2005
120Pukshansky Mikhai...2405Shashin Alexsande...23500-126 ≣B90Ch Leningrad (1/2...
126Pukshansky Mikhai...2405Shashin Alexsande...23500-126 ≣B50?
403Pyhala Antti (FIN)2345Oll Lembit (EST)26300-126 ≣B53It (open)
544Quinta Daniel (POR)2084Wanderley Rafaell...21080-125 ≣B90Ch Portugal (juni...
179Quinteros Miguel ...2520Sunye Neto Jaime ...25001-022 ≣B90It
180Radev Nikolai (BUL)2304Lukov Valentin (BUL)24200-123 ≣B90Ch Bulgaria
649Radjabov Teimour ...2729Anand Viswanathan...27791-016 ≣B90Ch World (blitz)07 Sep 2006
309Radola HGruszczynski Bolesla0-121 ≣B90Ch Poland (corr.)
708Rafalski Krzyszto...1667Radecki Krzysztof...19891-021 ≣B90Liga Mazowiecka 2...02 Dec 2007
458Rajlich Vasik G (...2270Ashley Maurice (USA)24900-123 ≣B90It (open)
833Ralys Vincas (LTU)1899Prigodinas Ruslan...18541-021 ≣B90Ch Lithuania27 Apr 2010
486Ramirez DiegoRenteria Jorge (COL)22710-123 ≣B90It (open)
710Ratushny Vladimir...2281Olejarczyk Bogdan...22031-028 ≣B90It (open) (under ...07 Dec 2007
389Reilhac Philippe ...2003Defrene S1-020 ≣B90Ch France (open) (b)
19Reinhardt Enrique...Panno Oscar (ARG)24381-027 ≣B90Ch Club Argentino
392Reinsch StephanAbbasova Aiguioun...21701-028 ≣B90Ch Germany (junio...
891Reis Renan Do Car...2251Stone Ronnie Fran...1-021 ≣B50Tournament \
751Relidzynski Tadeu...1996Jaworski Miroslaw...23600-128 ≣B90Ch Poland (for Di...03 Aug 2008
276Renet Olivier (FRA)2440Mrdja Milan (CRO)24021-025 ≣B90It (open)
308Rennemo OddPulkis Visvaldis1-028 ≣B90Ch Europe (corr.)
21Reynolds David BLee Peter N (ENG)23900-123 ≣B90Ch Great Britain
129Riabchonok E (RUS)2420Psakhis Lev (ISR)25241-025 ≣B90?
799Riazuelo Gilles (...2106Brunner Nicolas (...24210-124 ≣B90It (open)
463Ricaurte Macancel...1844Granda Jhonny1-022 ≣B90Tournament13 Apr 1998
263Rietz AFiensch Gunter0-121 ≣B90corr.
346Rinaldi CarlosPajares Bernabe1-025 ≣B90corr.
83Ritums RAmakov1-028 ≣B90corr.
801Rizos Georgios (GRE)2163Gripeos Kiriakos ...21720-128 ≣B90It (open) \18 Aug 2009
718Robion J1797Bruned Yvain (ESP)23930-122 ≣B90It (open)18 Feb 2008