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Nimzo-Indian, Sämisch Variation, Keres Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5

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
809Papaioannou Ioann...2597Aswin Jayaram (IND)24761-041 ≣E20It (open)28 Jul 2012
86Partos Charles (SUI)2345Nacht Edgar0-119 ≣E20Ch Romania
460Partos Charles (SUI)2386Cote F22001-040 ≣E20It (open)
823Pascua Haridas (PHI)2350Yu Yangyi (CHN)26510-136 ≣E20It (open)11 Oct 2012
284Pein Malcolm (ENG)2382Farago Ivan (HUN)25100-144 ≣E20It (open)
556Penalver Osmani (...2131Casey Gerry1-034 ≣E20Cup European Club...24 Sep 2005
374Peric Slavisa (SRB)2365Campos Moreno Jav...24850-131E20It (open)
80Petersen Sejer Ho...Hamann Svend (DEN)22981-041 ≣E20Ch Denmark
77Peterson Andrey (...Ridzvanavicius1-029 ≣E20Ch Baltik Republics
125Petran Pal (HUN)2384Lengyel Levente (...24501-033 ≣E20Ch Hungary
675Petrosyan Tigran ...2073Sathyanandha Sara...19701-046 ≣E20Olympiad (under 16)28 Sep 2009
217Pieterse Gert (NED)2361Bosman Michiel (NED)23420-146 ≣E20It (open)
326Piket Jeroen (NED)2590Korchnoi Viktor (...26250-135 ≣E20Match
136Pitkanen Juhani (...1724Inkinen Jorma0-124 ≣E20?
501Pitselis Grigorio...2132Papadopoulos I (GRE)22590-129 ≣E20Ch Greece (team)
581Pluemer Detlef (GER)2203Fogh J20931-042 ≣E20It (open) \29 Jul 2006
183Podat Vladimir (UKR)2318Gurevich Vladimir...24740-139 ≣E20Ch Ukraine (1/2 f...
46Polugaevsky Lev A...2585Niephaus Walter (...1-046 ≣E20Ch Europe (team)
31Polugaevsky Lev A...2585Teschner Rudolf (...22951-038 ≣E20Match \
438Pomes Marcet Juan...2388Campora Daniel H ...25261-037 ≣E20It (open)
379Pomes Marcet Juan...2420Ortega JI1-032 ≣E20Ch Catalunia (team)
465Pomes Marcet Juan...2399Adams Michael (ENG)27310-136 ≣E20It (open) (active) \
377Pomes Marcet Juan...2420Campos Jose Felix...22600-135 ≣E20It (open)
328Pomes Marcet Juan...2410Suba Mihai (ROM)25000-132 ≣E20It (active)
481Pomes Marcet Juan...2380Tome Vazquez Osca...20011-031 ≣E20It (open)
239Ponomariov Boris ...2430Brodsky Michail (...25531-029 ≣E20Ch Ukraine (1/2 f...
449Porras RubenVaras Carlos (CHI)22970-19 ≣E20It (open)
35Porreca Giorgio (...Tatai Stefano (ITA)23671-044 ≣E20Tournament
17Portisch Lajos (HUN)2523Bilek Istvan (HUN)23751-032 ≣E20Ch Hungary
105Portisch Lajos (HUN)2523Nagy Ervin (HUN)22691-027 ≣E20?
782Posedaru Bogdan (...2337Martian Dragos-Da...20741-040 ≣E20Ch Romania15 Feb 2012
647Posedaru Bogdan (...2212Bozilov Dragan (SRB)18631-018 ≣E20It (open)27 Nov 2008
594Posedaru Bogdan (...2178Grecescu Gabriel-...24050-148 ≣E20Ch Romania02 Dec 2006
766Posedaru Bogdan (...2342Katic Goran (SRB)20851-035 ≣E20Cup Belgrade (open)25 Nov 2011
645Posedaru Bogdan (...2212Ertan Can (TUR)21350-150 ≣E20Ch World (juniors...26 Oct 2008
699Prachar Josef (CZE)1922Portych Vaclav (CZE)18251-043 ≣E20It (open)22 May 2010
122Pribyl Josef (CZE)2450Timoscenko Gennad...24831-042 ≣E20It
753Prodinger JohannesDurakovic Alman (...22210-127 ≣E20It (open)27 Aug 2011
232Prudnikova Svetla...2349Misanovic Vesna (...23261-029 ≣E20Izt (w)
528PunteriBoldrin Marco (ITA)18691-033 ≣E20It (open)06 Sep 2004
163Pupols Viktors (USA)2155Wang Arthur D (USA)20901-025 ≣E20It \
37Purdy Cecil J S (...Sarapu Ortvin (NZL)22551-037 ≣E20Ch Australia15 Oct 1960
728Purnoch Josef (CZE)2127Drabek Vojtech (CZE)21280-140E20Czech League 2010...03 Apr 2011
138Pyhala Antti (FIN)2305Martois Karl-Erik0-147 ≣E20?
137Pyhala Antti (FIN)2305Ahonen Tauno1-026 ≣E20?
614Quinn Mark (IRL)2391Pilgaard Kim (DEN)24400-126 ≣E20Cup European Club07 Oct 2007
538Ragnarsson Johann...2187Johannessen Leif ...25640-150 ≣E20Ch Iceland (team)...05 Mar 2005
390Raineri Pablo (ARG)2275Oms Pallise Josep...23951-040 ≣E20It (open)
744Rambaldi Francesc...2176Georgiadis Ioanni...24350-141 ≣E20It (open)16 Jul 2011
172Ree Hans (NED)2465Ligterink Gert (NED)24500-129 ≣E20Ch Netherlands
51Richardson Keith ...2137Wade Robert G (ENG)21480-136 ≣E20Tournament
685Richter Michael (...2459De Verdier Michae...23411-042 ≣E20Cup Rilton (open)04 Jan 2010
355Rittler Robert (AUT)2199Janetschek Karl (...23100-131 ≣E20Staatsliga B East...
731Robertson J StuartHarley-Yeo Gareth...20061-029E20Ch England (team)...01 May 2011
473Roeschlau Bernd (...2314Kersten Uwe (GER)23571-043 ≣E20Ch Hessen
281Rohwer Paul (USA)2225Benjamin Dan (USA)22801-034 ≣E20Ch USA (juniors) ...
376Romaszko-Van Den ...2085Aksiuczyc Monika ...22570-142 ≣E20Ch Poland (w)
412Romaszko-Van Den ...2085Alienkin Aleksand...23650-140 ≣E20Memorial Karl Wag...
559Romon Poves Raul ...2209Gomez Luesia Jesu...21961-040 ≣E20It (cat.4)04 Oct 2005
202Roschlau BVerat Laurent (FRA)23381-028 ≣E20It (open)
674Rosenthal Joachim...2240Toth Ervin (HUN)23840-128 ≣E20It (open)05 Sep 2009
640Rosenthal Jonatha...2208Mohan Rahul (KEN)16151-032E20Olympiad (juniors...17 Aug 2008
147Rubinetti Jorge (...2420Sanguinetti Raul ...25050-142 ≣E20Ch Argentina
667Rudd Jack (ENG)2326Gibson Christophe...19911-046 ≣E20It (open)12 Jul 2009
406Rudolph Johannes ...2288Lendwai Reinhard ...23750-140 ≣E20Staatsliga B Sout...
396Rudolph Johannes ...2288Klein Volker (GER)22190-142 ≣E20Bayern Landesliga...
593Ruiz Vinals Matia...2030Hoenick Andreas (...21770-134 ≣E20It (open)27 Oct 2006
34Rutman Aleksandr ...2198Selevinski0-129 ≣E20Match \
221Ruygrok DennisHotting Arend0-116 ≣E20corr.
768Sadorra Julio Cat...2506Onischuk Alexande...26740-141 ≣E20It (cat.10)19 Dec 2011
250Safin Shukhrat (UZB)2472Teplitsky Yan (CAN)24481-022 ≣E20Ch Uzbekistan
310Sagalchik Gennadi...2442Moskow Eric (USA)21771-022 ≣E20It
193Sahovic Dragutin ...2259Miralles Gilles (...24301-034 ≣E20It (open)
388Sakaev Konstantin...2600Ivanov Alexey Jr ...24240-138 ≣E20Cup European Club
266Sakaev Konstantin...2495Brodsky Michail (...24151-039 ≣E20Ch URS (young mas...
240Sakaev Konstantin...2609Emms John M (ENG)24301-037 ≣E20It
9Sakellaropoulos ThLoverdos S1-024 ≣E20Ch Greece
128Sakovich Igor (LAT)2210Shmit Anatoly (LAT)22000-143 ≣E20?
337Saldano Horacio (...2275Zarnicki Pablo (ARG)24750-121 ≣E20It (open)
436Salmela Hannu (FIN)2047Solozhenkin Evgen...25040-123 ≣E20It (open) \
475Salmela Hannu (FIN)2058Maki-Uuro Miikka ...23730-143 ≣E20Ch Finland (team)...
453Salmela Hannu (FIN)2047Agopov Mikael (FIN)23990-149 ≣E20It (open)
426Salmela Hannu (FIN)2041Lugovoi Aleksei (...25090-145 ≣E20It \
822Samdanov Samdan (...2221Angarov Dmitriy (...19121-033 ≣E20Ch Buryatia30 Sep 2012
658Samdanov Samdan (...1989Vafin Ayrat (RUS)20890-134 ≣E20Ch Russia (junior...20 Apr 2009
613Sanchez de Las Ha...Toranzo Fernandez...20090-132 ≣E20It (open)07 Oct 2007
820Sandhoefner Flori...2228Blasl Dietmar (AUT)20701-039 ≣E20It (open)02 Sep 2012
24Sanguinetti Raul ...2485Wexler Bernardo (...1-040 ≣E20It
27Sanguinetti Raul ...2485Luckis Marcos22701-020 ≣E20It
811Santos Latasa Jai...2399Favarel Antoine (...22671-033 ≣E20It (open)02 Aug 2012
810Santos Latasa Jai...2399Inkiov Ventzislav...24600-145 ≣E20It (open)01 Aug 2012
697Savage Nicholas W...2134Scott David20581-049 ≣E20Ch England (team)...03 May 2010
662Savchenko Aleksei...2246Hirneise Jens (GER)22840-132 ≣E20Ch Germany (junio...10 May 2009
300Savchenko Stanisl...2505Reeh Oliver (GER)24551-040 ≣E20It (open) \
394Sbarra Marco (ITA)2280Bossi Alessandro ...20191-031 ≣E20It (open)
292Schipkov Boris (RUS)2330Sziraki Tamas (HUN)22990-132 ≣E20It (open) \
68Schmidt Johannes ...2243Lengyel C1-024 ≣E20Europe Tournament...
67Schmidt Johannes ...2243Gigas J1-046 ≣E20Ch BRD (corr.)
194Schreiber Hans (GER)1981Bascetta Biagio0-122 ≣E20Europe Tournament...
195Schreiber Hans (GER)1981Reinhardt W (GER)1-037 ≣E20Europe Tournament...