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Catalan, Open, Classical line 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7

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
5Sajtar Jaroslav (...Hromadka Karel (AUT)0-130 ≣A13It
342Safin Shukhrat (UZB)2510Kulkarni Rakesh (...21461-043 ≣D30It (open)13 Jan 2008
328Rumiancev Boris (...2170Kalvaitis Sigitas...22450-144 ≣A40It (open)20 Jul 2007
20Rotstein Efim (GER)2341Levin M1-038 ≣E06Ch Ukraine
178Rossen Claus (DEN)2184Jonkman Harmen (NED)24211-039 ≣D02It (open) \
355Ropers Klaus (GER)1887Kasraei Amir Reza...18591-020 ≣D02It (open) (b)03 Jul 2008
295Roos Thomas (GER)2249Thomassen Joachim...20591-047 ≣E06It (open)04 Mar 2006
78Romero Holmes Alf...2430Rodriguez Orestes...24030-157 ≣A46Ch Spain (team)
466Romanov Evgeny (RUS)2623Carstensen Jacob ...23521-031 ≣A05It \05 Aug 2012
453Romanova Inna (BLR)2287Andriasian Siranu...22200-177 ≣E10Cup Femida (w)21 Nov 2011
251Romano Julieta (ARG)1916Menon Daniel (ARG)21061-057 ≣D30Ch Argentina
241Roktim Bandyopadh...2345Ravi Thandalam Sh...23811-036 ≣E04Ch India
151Rojo Gomez Jorge ...2305Rodriguez Orestes...24250-153 ≣D30Ch Spain (team)
443Rojicek Vojtech (...2406Blazeka Djuro (CRO)19001-030 ≣D30It (open)04 Aug 2011
271Rojas Sotelo Ruben2035Grandi Angel E1-053 ≣D21It (open)09 Nov 2004
407Rohde Ulrich (GER)2194Scheider Julian (...22200-140 ≣A06NRW-liga 2009/1021 Mar 2010
71Rogers Ian (AUS)2535Bellini Fabio (ITA)25041-060 ≣D30It (open)
137Roeber Bjoern (GER)2210Leinweber Matthias0-168 ≣D00It (open)
113Roeber Bjoern (GER)2312Von Nordheim Thom...21731-030 ≣D02Ch Germany (junio...
17Rittner Horst R (...Moehring Guenther...22941-049 ≣A05It (b)
267Riedel Holger Dr ...2284Jonkman Harmen (NED)24170-136 ≣D21It (open)09 Aug 2004
167Reilein Christian...2266Froehlich Peter (...22701-037 ≣A46Bayern Landesliga...
426Regorda Vittorio ...1872Moroni Luca Jr (ITA)17361-044 ≣D30Memorial Crespi (...04 Dec 2010
27Reefschlaeger Hel...2248Zier Ludwig (GER)22401-015 ≣E04Ch BRD
259Reefschlaeger Hel...Schwicker Francoi...0-141 ≣D30Oberliga Baden 20...07 Mar 2004
14Ravinsky Grigory ...Khasin Abram (RUS)23900-146 ≣E04Ch Moscow
279Ranic Goran (MKD)2049Glavinac Goran (MKD)21790-144 ≣D02Ch Macedonia13 Jul 2005
58QuinterosOpl Klaus (AUT)23251-033 ≣A13It (open)
409Quaranta Cristian...2116Ronconi Fausto (ITA)17481-030 ≣D30Ch Regionale Lomb...28 May 2010
345Pushkin Eduard (RUS)2200Yaksin Oleg (RUS)23451-080 ≣A13Ch PriFO
156Psakhis Lev (ISR)2565Stefansson Hannes...25451-034 ≣E00It (open)
338Prushinin Stanisl...2288Ivanova Tatiana (...21281-027 ≣D30Ch Russia (studen...27 Oct 2007
386Prohaszka Peter (...2508Matvienko Ivan (RUS)23041-032 ≣E00Ch Europe (team) ...18 Jul 2009
364Prohaszka Peter (...2502Nyzhnyk Illya (UKR)24440-171 ≣D02Ch Europe (junior...22 Sep 2008
119Pribyl Josef (CZE)2420Pribyl Martin (CZE)23600-161 ≣A40It (cat.4) \
237Porth Dietmar (GER)2274Boguslavsky Oleg ...22991-041 ≣E06Bundesliga (2nd) ...15 Dec 2002
412Popov Roman (RUS)2356Kryuchkov Alexand...21121-059 ≣A46Tournament (open)10 Jul 2010
84Popescu T1750Tripa N1-023 ≣E04Ch Romania
320Ponomarenko Vikto...2167Provotorov Ivan (...24010-150 ≣E10Ch Central Region19 Mar 2007
6Poliak Abram (RUS)Verlinsky Boris (...1-053 ≣A15Ch Moscow
373Pogonina Natalija...2501Sukhareva Evgeniy...21821-033 ≣D02It (open) (w)01 Feb 2009
468Poessel CSchuermann R1-036 ≣D30It (open)22 Aug 2012
451Pimenov Revolt (RUS)2179Golovenchits Bori...19671-031 ≣A06Tournament (open) \29 Oct 2011
179Pick Stepan (CZE)2244Voracek Zdenek (CZE)20671-022 ≣A06Czech League 1998...
431Petrov Ivan (RUS)2159Rud Aleksandr1-039 ≣A05Cup Vladivostok (...01 Apr 2011
10Petrosian Tigran ...2580Zeinalli1-052 ≣D02Ch URS (juniors) ...
371Peschel Andreas (...2147Polushkina Svetla...20641-018 ≣D02NRW Klasse 2 2008/0930 Nov 2008
406Pertlova Sona (CZE)2199Ikonomopoulou Mar...21601-043 ≣E00Ch Europe (w)07 Mar 2010
81Pergericht Daniel...2285Schinis M (CYP)22051-059 ≣E00Ch Europe (team)
103Perez Rosales Ped...2129Veiga J1-049 ≣E10Tournament
305Perelman Hernan (...2296Coronel Nestor (ARG)17421-026 ≣A46It (open)09 Aug 2006
326Penzel Nils (GER)2062Mamedjarova Zeina...23420-136 ≣D02It \11 Jul 2007
377Pedersen Nicolai ...2014Thanarotrung Ratc...17731-052 ≣D02Ch Thailand (open)05 Apr 2009
317Pavlovic Milos_ (...2448Krstic Petar (SRB)23581-019 ≣A05Ch Serbia (qual)23 Jan 2007
235Partys Tatiana (RUS)2042Adarov Arzhan (RUS)22050-137 ≣D02Cup Russia (open)
85Paldanius Pekka (...2265Nisula Timo (FIN)19641-015 ≣E06Ch Club
284Pacheco Daniel (ARG)2297Mieles Palau Dani...24861-048 ≣D30Ch American Conti...09 Aug 2005
324Ovchinnikov VitalyIvanova Tatiana (...21280-140 ≣D30Memorial Izmailov...
107Orlov Georgi (USA)2479Pupols Viktors (USA)21551-050 ≣D30It \
112Orlov Georgi (USA)2479Pupols Viktors (USA)21551-077 ≣E10It
95Orlov Georgi (USA)2500Smolensky R1-058 ≣A46It (open)
242Olsson Linus (SWE)2289Vovk Oksana (DEN)21531-034 ≣A40It (open) (juniors)
229Olsen Heini (FAI)2241Nolsoe Eydun (FAI)22361-034 ≣E06It (cat.4)
180Olsen Heini (FAI)2292Petersen Steen (DEN)21661-030 ≣E04Ch Amager
164Olarasu Gabriela ...2325Moshina Cristina ...21851-045 ≣D30It (w)
343Nyback Tomi (FIN)2639Kanep Meelis (EST)25241-042 ≣E06Match \13 Jan 2008
246Noroozi Omid (IRI)2172Ghane Shojaat (IRI)23760-132 ≣A13Ch Iran
219Nilssen John Arni...2369Arab Adlane (ALG)22681-070 ≣E06Olympiad
234Nikolaev Nikita (...2354Ivanov Alexey Jr ...22560-131 ≣D02Memorial M.Chigor...
376Nikolaev Alexande...2119Shafarostov Artem...19981-037 ≣D30Ch Russia (junior...
104Nicolosi Tino (GER)2100Schroeder Raymond...20010-157 ≣A05It (open)
461Nguyen Van Huy (VIE)2485Irwanto Sadikin (...24191-058 ≣A46Ch Asia12 May 2012
325Nguyen Hung Cuong...1974Truong Bao Thach ...0-149 ≣E10Ch Vietnam (junio...10 Jul 2007
57Neverov Valeriy (...2465Sarwinski Mirosla...23131-040 ≣E00It (cat.8)
394Neha ShankarDegimli Duru1-043 ≣D02Ch World (juniors...15 Nov 2009
374Neff Gregor (AUT)2147Ruecker Benjamin ...22580-140 ≣E00It (open)14 Feb 2009
249Nechepurenko Roma...2353Bedny Yuri (RUS)22791-038 ≣D02It (open) \
303Nebolsina Vera (RUS)2349Perrusset Barbara...18391-016 ≣D02It (w)10 Jul 2006
70Najdorf Miguel (POL)2445Campos G Luis Mar...24501-023 ≣A40It (open)
399Nadig Kruttika (IND)2230Hamer Martyn (ENG)20411-044 ≣E06It (open) \28 Jan 2010
410Muhtarova ViktoriyaBelous Mikhail18060-141A13Cup Anatoly Ermak...25 Jun 2010
60Mueller Friedrich...2085Haese G0-142 ≣E04Europe Tournament...
187Mueller Armin (GER)2032Doeserich Juergen...20800-139 ≣A13Verbandsliga Bade...24 Jan 1999
211Mozny Milos (CZE)2387Wagman Stuart (USA)21431-025 ≣D02It (open)
323Morozova Julia (UKR)2078Kalinina Olga (UKR)21940-185 ≣D02Ukrainian Games (w)24 May 2007
200Monz Dieter (AUT)2055Gartner Hubert12000-168 ≣D02Staatsliga B West...
166Monostori Lajos (...2240Raivio Pertti (FIN)0-121 ≣E04Memorial Ljubomirov
315Molnar Peter (HUN)2158Kantorik Marian (...23640-133 ≣D02Extraliga 2006/0710 Dec 2006
88Mitlashevsky Oleg...2247Manolov Valentin ...19571-029 ≣A46It (open)
183Mishra Neeraj-Kum...2355Swathi Ghate (IND)22090-139 ≣E04Ch Commonwealth
87Miranda Jose LuisSanchez Alvarez Fran1-035 ≣D30Ch Asturias (juni...
122Minero Pineda Ser...2412Estrada Nieto Jul...23950-140 ≣A09It
447Mikhalevski Victo...2542Moor Olivier (SUI)23991-067 ≣A05It (open)03 Oct 2011
356Mikhalevski Victo...2602Battaglini Gabrie...23181-025 ≣D30It \04 Jul 2008
100Mihaljevic Josip ...2270Marquez Danilo1-031 ≣E10It (open) (b)
458Miettinen Teemu (...2023Fridthjofsdottir ...17311-056 ≣A14It (open)12 Mar 2012
307Meier Georg (GER)2484Sakelsek Tadej (SLO)24681-043 ≣A05Cup Mitropa
36Mehler Gerhard (GER)2260Schawelka K0-144 ≣D02Ch Bayern (b)
260Medvegy Zoltan (HUN)2467Boguslavsky Oleg ...23741-046 ≣A15Ch Baden (open)14 Apr 2004
31Mascarinas Rico (...2396Shaw Terrey I (AUS)22800-142 ≣D30It