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Grünfeld Defence 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. 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
89NigonChabanon Jean-Luc...24810-128 ≣D80Ch France (team)
318Nunes Jose B L1815Schmidt Osmar Rau...17200-126 ≣D80Tournament (open) \23 Mar 2003
259Obsivac Josef (CZE)2348Krupkova Petra (CZE)22951-029 ≣D80Extra League 2001/02
551Olszewski Michal ...2541Pacher Milan (SVK)24081-027 ≣D80It (open)15 Sep 2011
254Oms Pallise Josep...2415Medina Zamora Joa...20781-020 ≣D80It (open)
36Onat Ilhan (TUR)2334Scheinwald Chagai...23351-023 ≣D80It (b)
459Ospina Carl Erik ...1989Pachon Adriana (COL)20131-015 ≣D80Tournament \13 Nov 2008
190Ossig BenjaminLorum Karsten0-129 ≣D80Ch Niederrhein (j...
269Ostrowski Tadeusz...2058Toma Katarzyna (POL)21921-021 ≣D80It (open)
575Outi Matheus GoyaGazola Vanessa Ra...20200-124 ≣D80It (open)20 Apr 2012
553Ozdemir Timur (TUR)1956Van Oudvorst Bert...19391-030 ≣D80Ch World (amateurs)06 Oct 2011
510Paikidze Nazi (GEO)2376Nebolsina Vera (RUS)23600-122 ≣D80Ch World (blitz) ...18 Sep 2010
568Pak Evgeniy (KAZ)2328Lozhnikov V (KAZ)21171-029 ≣D80Ch Kazakhstan (1/...25 Feb 2012
157Palao Maricela (COL)2159Ramon Vivian (CUB)22051-023 ≣D80Memorial J.Capabl...
18Palmiotto Fiorent...2104Nikolic Stanimir ...22770-119 ≣D06It
534Panjwani Raja (CAN)2411Nicholson Matthew...19561-024 ≣D80Ch Canada07 May 2011
500Pantsulaia Levan ...2599Arutinian David (...25780-129 ≣D80It (open)13 Apr 2010
517Paragliola Gennar...1600Vincenzi Marco (ITA)20900-129 ≣D80It (open) (b)17 Dec 2010
520Paulauskiene Vilm...2082Zaksaite Salomeja...22001-024 ≣D80Ch Lithuania (team)30 Jan 2011
75Pawlowitsch DSchlager Thomas (...22620-115 ≣D80It (open)
199Pecha Juraj (CZE)2043Kopkan Pavel (CZE)19051-027 ≣D80Memorial Olexa (o...
250Pechisker Alfred ...2047Haukenfrers Dale0-110 ≣D80Memorial P.Keres ...
25Peev Peicho (BUL)2400Kosarov1-029 ≣D80?
204Perez Berenguer V...1896Diembeck Andreas1-027 ≣D80It (open)
315Perez Diaz Manuel...1913Lobo Jesus Rodrig...21800-126 ≣D80It (open)
92Perez Garcia Hebe...2137Fette Martin (GER)22930-118 ≣D80It (open)
137Phalen MLewis C0-115D80It (open) (2)
167Pichl Uwe (GER)1780Mittendorf Frank ...21260-128 ≣D80It (open)
7Pinzon Solis FilipeOpsahl Haakon1-016 ≣D80Olympiad
91Pirrung RobertHeinelt Manfred (...22110-121 ≣D80Ch BRD (under 25)...
5Piskov KamenHadjipetrov Aleks...1-030 ≣D80Ch Bulgaria23 Sep 1948
333Plakourakis Emman...1982Sismanis Aggelos ...21110-130 ≣D80Ch Greece (junior...01 Jul 2004
508Plazaola Maria De...2203Malajovich Sandra...20651-030 ≣D06It (w)27 Aug 2010
168Plesnik MBolacky Jiri (CZE)22690-112 ≣D80It (open) \
592Podolsky Anton (UKR)2266Zulfic Fedja (AUS)21351-027 ≣D80Ch World (juniors...11 Aug 2012
533Polulikh Bogdan (...1849Konkin Olexiy1-017 ≣D80Ch Region (open)05 May 2011
85Porper Eduard (CAN)2449Terella0-128 ≣D80Ch Austria (corr.)
203Porsch Harald (GER)2170Roth Josef (GER)21071-027 ≣D80Oberliga Northeas...
481Pozonec VeronikaBowler Robert0-121 ≣D80Ch European Union...12 Aug 2009
595Pregarac Valter (...2181Erdos Viktor (HUN)26490-127 ≣D80It (open)02 Sep 2012
391Pribyl Rene (CZE)2063Sekanina Jiri (CZE)21310-124 ≣D80Czech League 2006...04 Feb 2007
415Pushilin DmitryAliabiev Boris (RUS)21680-121 ≣D80Tournament (junio...03 Nov 2007
289Qendro Llambi (ALB)2364Di Fonzo Valerio ...22231-027 ≣D80It \
232Quiroga Facundo (...2398Arraga Gerardo (ARG)19271-030 ≣D80Memorial Reinhardt
278Rabovszky Gyorgy ...2070Schwalen Peter (GER)21870-129 ≣D80It (open)06 Sep 2001
124Rachunek Martin (...2008Zavurka Roman (CZE)21661-027D80Ch Czechoslovakia...
323Ragni MarcoLossau Siegfried ...1-023 ≣A16Verbandsliga Bade...09 Nov 2003
433Rakocevic Miraz (...1824Masovic Slobadank...19681-030 ≣D80It \01 Apr 2008
72Ravisekhar Raja (...2395Giulian Philip M ...22941-030 ≣D80Ch Great Britain
388Real Morales RubenFernandez Garcia ...24700-127 ≣D80It (open) (active)04 Nov 2006
363Reilly Tim (AUS)2273Zhao Zong-Yuan (AUS)24550-123 ≣D80It (open)17 Jan 2006
462Renaze Luc (FRA)2309Larrat Philippe (...21701-023 ≣D80Ch France (team) ...23 Nov 2008
131Riek Jens-Uwe (GER)2021Tardel Olaf0-115 ≣D80Mecklenburg Lande...
438Rodak PrzemyslawGora Antonina (POL)15831-025D80Tournament (open)15 Jun 2008
537Rodrigues Da Silv...2168Abrantes Tiago Ga...20791-027 ≣D80Ch Regional Centr...24 Jun 2011
118Rodriguez Leiva M...2069Lasanta Rica Cesa...22141-022 ≣D80It (open) (c)
545Rodriguez Mayorga...2081Ruiz Alciguel (COL)21941-023 ≣D80Tournament (open)24 Jul 2011
571Rodriguez M Julia2125Perez Olarte Cesa...22360-122 ≣D80It \06 Apr 2012
379Rodshtein Maxim (...2517Fogarasi Tibor (HUN)24251-025 ≣D80It (cat.8)05 Aug 2006
63Rohde Michael A (...2452Rogers Ian (AUS)25450-123D80?
561Romeril AlanFritzer Friedrich...17361-022 ≣D80It (open)11 Dec 2011
2Roodzant CatharinaCarrasco De Budin...0-122 ≣D80Ch World (w)
321Rotaenko PetrNasikan Nikolai1-026 ≣D80Cup Independence ...05 Aug 2003
31Rothbart Bernard MBotterill George ...24101-026 ≣D80It (open)
208Rozmbersky David ...2207Koutecky Vaclav (...20600-119 ≣D80It (open) (juniors)
499Ruan Jack (AUS)1935Monir Arman (BAN)21370-128 ≣D80It (open)11 Apr 2010
292Rubio JJ (ESP)2270Martinez Jose1-017 ≣D80Ch Almeria
247Ruiz Perez JonatanDe La Fuente Clem...18990-120D80It (open) (b)
443Saiz Lopez Laura ...1420Crespo Ramos Mari...16150-119D80Ch Spain (juniors...24 Jul 2008
262Salikhov GDikinov A1-022 ≣D80Ch Russia (1/2 fi...
477Sargissian Gabrie...2667Hammer Jon Ludvig...25831-022 ≣D80It (open) \22 Jul 2009
458Sasikiran Krishna...2694Svidler Peter (RUS)27270-116 ≣D80Ch World (blitz)08 Nov 2008
495Savage Nicholas W1996Summerscale Clair...19801-023 ≣D80It (open) (major)20 Mar 2010
492Savage Nicholas W...2134Hilton Stephen (SCO)19081-027 ≣D80Ch England (team)...20 Feb 2010
587Savchuk Vladimir ...1905Gabaidulina Olga ...19271-027 ≣D80Cup Russia (open)17 Jul 2012
249Scarenzio Renato ...2024Soncin Denis (ITA)21470-121 ≣A40It (open)
331Schaefer Simon2302Finkbeiner Alina1-023 ≣D06Ch Germany (open)...02 Jun 2004
305Schaetz Christoph...2005Huschenbeth Nicla...20770-116 ≣A15Ch Germany (junio...
80Schlatter DTresch Ralf (GER)22210-114 ≣D80Ch RLP (juniors) ...
100Schmidt Loren R (...2340Afriany V (HAI)20681-030 ≣D80Olympiad
212Schneider Volker ...2227Molnar Laszlo (HUN)21400-120 ≣D06It (sheveningen)
303Schuurman Petra (...2333Papa Severin (SUI)24110-116 ≣D80It (open)
102Schwerdtfeger Wol...1782Raddatz Wolfgang0-125 ≣A15Ch Schleswig Hols...
543Sedlak Nikola (SRB)2589Schneider Veronik...22971-026 ≣D80It (open)10 Jul 2011
61Segal Alexandru S...2145Sharif Mohamed (UAE)22351-030 ≣D80Olympiad
352Sergeev Albert (RUS)2400Vorontsov Anatoly...21611-029 ≣D80Cup Belarus27 May 2005
343Shirazi Kamran (FRA)2389Picard Romain (FRA)22900-126D80It (cat.4)
560Shishkin Vadim (UKR)2449Stella Andrea (ITA)24481-024 ≣D80Memorial Crespi (...06 Dec 2011
272Shoev Kirill (RUS)2258Modestov Boris (RUS)23041-024 ≣D80Ch Russia (junior...
449Shulga YuryGorodovsky Andrey1-027 ≣D80It (open) (b)06 Aug 2008
286Shvartsman IgorShchukin Igor1-022 ≣D80Memorial Y.Sakhar...
163Sidorova Elena (RUS)2060Andreescu Nicolet...21601-024 ≣D80Ch Europe (junior...
239Siegmund Rainer (...2143Fuchs Oliver (GER)19191-020 ≣D80It (open)
143Silwedel BjornFeige Rene0-122 ≣D80Mecklenburg Lande...
583Simantsev Mikhail...2531Mroziak Maciej (POL)21781-028 ≣D80It (open)05 Jul 2012
231Simon Peter (HUN)2086Schneider Volker ...22431-029 ≣D80Tournament (Elo)
322Sitar Ziga1533Znidersic Sanja17520-129 ≣D80Ch Slovenia (juni...25 Aug 2003
336Sitnik Igor (SLO)2263Miletic Dean (SLO)21290-127 ≣D80It (open)16 Jul 2004
307Sitte Stefan (GER)Ripp Dirk (GER)1-016 ≣D80Ch Baden (HT2)
150Sjoberg Mats (SWE)2445Chatila W1-018 ≣D80It (open)