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Sicilian, Najdorf, 6.f4 Notation: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4

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
414Kosanski Stanko (...2338Santolini Luigi (...21970-122 ≣B90It (open)
337Kottusch Dieter (...2017Jendrian Michael ...20380-120 ≣B90Ch Schleswig Hols...
190Koukiadakis KiriakosHalkias Ioannis0-123 ≣B90It (open)29 Aug 2008
216Koziej Maciej (POL)2064Mucha Piotr19261-021 ≣B90It (open) (b)03 Jan 2012
332Krajcovic Branisl...2048Kadlec Bohuslav (...19051-024 ≣B90Ch Slovakia
207Kraus Frantisek (...2106Skyba Radim (CZE)17881-023 ≣B90It (open)
428Krieger Hermann (...2200Gelbmann Norbert ...22181-024 ≣B90It (open)
442Krilov PKuebler A1-020 ≣B90Europe Tournament...
162Kuijf Marinus (NED)2420Roschlau B1-023 ≣B20It (open)
282KuiphofLewis1-015 ≣B90corr.
101Kunzelmann FredSteffan J1-019 ≣B90corr.
436Kupper Josef (SUI)2374Olafsson Fridrik ...24341-020 ≣B90It
445Kurki-Suonio MikkoMestilainen Leo1-022 ≣B90?
99KuspielBraune1-024 ≣B90corr.
335Kveinys Aloyzas (...2531Guidarelli Lauren...24220-123 ≣B90It (open)
420Lacerda Cesar (BRA)2046Schmidt Osmar Rau...18271-020 ≣B90Tournament09 Aug 2008
419Lacerda Cesar (BRA)2037Bittencourt Jorge...24400-121 ≣B90Tournament (stude...12 Oct 2010
327Lagumina Giulio (...2320Battaggia Piergio...20431-023 ≣B90It (open)
11Lang Torsten (GER)2368Dinstuhl Volkmar ...24080-114 ≣B90Ch Germany (juniors)
339Lau Ralf (GER)2510Seitz Michael (GER)22581-017 ≣B90It (open)
128Leino Jukka (FIN)2178Keskisarja Teemu ...22750-122 ≣B90Ch Finland (team)...
196Leitao Nicolau Da...Leitao Rafael (BRA)25800-120 ≣B90It (open) Pre-Amazon
191Lemanczyk Thomas ...2248Rezasade Mohammad1-024 ≣B90Tournament
333Lemiere Frederic ...2090Girard Jean-Pierr...18730-122 ≣B90Tournament
179Le Nguyen Nhu Y (...Mai Huong Giang1-023 ≣B90Tournament (open)...
376Li Chao (CHN)2508Nguyen Huynh Minh...23951-023 ≣B90It (open)29 Dec 2006
126Lillo Josep2200Bruno Ghiani20801-021 ≣B90It (open)
50Limbos PaulRoos Michel (FRA)21181-024 ≣B90It
348Livshits Gaby (ISR)2090Szvetits R0-124 ≣B90Ch Europe (junior...
404Livshits Ron (CAN)2350Douthwaite Bryan ...21081-024 ≣B90It (open)
272Losev Dmitry (RUS)2375Rashkovsky Nukhim...25300-119 ≣B90Memorial A.Alekhi...
269Losev Dmitry (RUS)2315Nevostrujev Vladi...24100-122 ≣B90It (open)
266Losev Dmitry (RUS)2375Dubinsky Roman (RUS)22101-017 ≣B90Ch Moscow (open)
270Losev Dmitry (RUS)2420Odeev Handszar (TKM)23701-012 ≣B90Memorial Goldberg
283Los Sander (NED)2355Pliester Leon (NED)23850-122 ≣B90Ch Netherlands (t...
80Louis Jean-Philip...2134Bougel Claude (FRA)17251-020 ≣B90It (open)
81Louis Jean-Philip...2134Pavlovic Milos (SRB)24700-121 ≣B90It (open)
129Lyly Seppo (FIN)1937Niemela Tuomas0-123 ≣B90Ch Finland (team)...
387Lyly Seppo (FIN)1937Nordstrom Felix (...21811-024 ≣B90Cup Rilton
30Maahs Erich (GER)2071Ferstl Manfred (GER)19691-023 ≣B90It (open)
264Madaschi Sergio (...1636Barritt Jordan1-023 ≣B90Tournament (weekend)25 Mar 2006
377Mahesh Chandran P...2253Aravindan P1-015B90Ch India (juniors...
235Majstorovic DanLypps B0-121 ≣B54It (open)
449Makinen ErkkiPalomaki Pekka0-122 ≣B90Memorial Heilimo ...
398Maki Veijo (FIN)2376Lampen Timo (FIN)23081-020 ≣B90It
425Malec Sebastian (...1855Swieszek Joanna (...18581-020 ≣B90It (open) (c)06 Aug 2008
357Mania Clement (FRA)2159Caron Damien (FRA)19301-017 ≣B90It (open)28 Jul 2010
369Mannion Stephen R...2365Stalker A1-024 ≣B90It (open) Glenrothes
438Marecek M (SVK)Cmiel Thorsten (GER)22500-124 ≣B90Ch Czechoslovakia...
273Marinello Beatriz...2220Roschina Tatiana ...21350-121 ≣B90Olympiad (w)
378Martidis Alkis (CYP)2188Al Jasani22001-024 ≣B90Olympiad
374Martin Benjamin (...2375Britton Richard (...23301-014 ≣B90It (cat.4)
395Martin Benjamin (...2375Belin Igor (AUS)23351-022 ≣B90It (sheveningen)
76Martin Benjamin (...2375Piscopo S (AUS)21421-022 ≣B90Cup Doeberl
202Martorelli Antoni...2380Del-Monaco Andrea...23151-024 ≣B90Ch Italy (1/2 final)
239Mas Hafizulhelmi ...2280Roberto Suelo Jr0-123 ≣B90Ch Asia (juniors)...
433Matulovic Milan (...2394Djantar Djordje (...22401-022 ≣B90Ch Yugoslavia
401Maus Soenke (GER)2403Gradstein Mark (ISR)22501-020 ≣B90?
197Mazur Stefan (SVK)2144Froeschl Felix (AUT)22031-017 ≣B90It (open)05 Sep 2007
229Medina-Garcia Ant...2253Pacheco Vega J1-012 ≣B90?
400Medina-Garcia Ant...2253Gheorghiu Florin ...23830-122 ≣B90Olympiad
117Meera Sai (IND)2154Ghaem Maghami Ehs...25990-121 ≣B90It (open)06 Apr 2008
77Messa Roberto (ITA)2305Aleksic Nenad (MNE)20121-023 ≣B90It (open)
21Metz Werner Richa...Marschner Guenter19301-024 ≣B90corr.
85Mihevc Ivo (SLO)2214Justin Matjaz (SLO)23721-024 ≣B90Ch Slovenia (team)03 Dec 2004
381Mikulas Dusan (SVK)2142Stonawski Vitold1-018 ≣B90It (open) Tatry
17MinguetChagnaud Thomas (...21800-116 ≣B90Ch France (access...
306Morona Minguez Ir...1815Madurga Lopez Ign...20100-122 ≣B90It (open)12 Sep 2010
121Motyliov Anatoly ...2241Kaliberda Vladimi...23230-123 ≣B90It (cat.1)17 May 2008
142Mrva Martin (SVK)2470Andre Wolfgang (GER)21971-024 ≣B90Bundesliga 1991/92
149Murdzia Piotr (POL)2470Paehtz Thomas Jr ...23181-019 ≣B90Oberliga East B 2...01 Apr 2006
138Musavengana MercyBotlhole Kgalalel...15350-118B90Ch Africa (junior...27 Aug 2010
136Nagel Herbert (AUT)2107Freitag Manfred (...23800-123 ≣B90Staatsliga
39Namay Caceres San...2117Perez Lopez Franc...1-023 ≣B90It (open)
312Nazarenus Olaf (GER)2046Kuntz Timo19951-020 ≣B90It (open)
412Neikirkh Oleg N (...2370Bobotsov Milko G ...24051-023 ≣B90It
29Nekrasov Mihail (...Perez Jose (SUI)1-011 ≣B90Oberliga Baden 20...20 Jan 2008
112Nguyen Thanh Nghi...2133Bui Quy Hung (VIE)0-117 ≣B90Ch Vietnam (junio...
167Ninov Nikolai (BUL)2473Mangone Pierre (FRA)20251-019 ≣B90It (open)29 Feb 2004
194Ninov Nikolai (BUL)2518Marholev Dimitar ...23981-020 ≣B90Tournament03 Jan 2007
353Nitsche WernerReich Jens0-122 ≣B90Ch DDR (juniors) ...19 Aug 1957
409Noel Richard WBlocker Calvin (USA)23781-023 ≣B90It US open
220Nokso-Koivisto An...2239Vakeva Jani (FIN)21800-121 ≣B90It (open)
413Noradounghian Geo...Schmidt Wlodzimie...23700-124 ≣B90Olympiad
98Novotny Jiri (CZE)1609Chmiel Pavel (CZE)22431-024 ≣B90Czech League 1995...
279Nowicki ChristianSpiess Timo (GER)21860-121 ≣B90VK4 1996/97
156Ntaifas Ioannis (...1999Ilandzis Spyridon...21760-124 ≣B23Memorial Tr.Siape...20 Feb 2010
134Nuenchert Eveline...2121Kluss Christel18351-024 ≣B90Ch DDR (w)
402Nunn John D M (ENG)2580Gruenfeld Yehuda ...25151-023 ≣B90Olympiad (telechess)
123Nunn John D M (ENG)2580Gruenfeld Yehuda ...25151-023 ≣B90Memorial Kapusa (...
340Nunn John D M (ENG)2590Bouaziz Slim (TUN)23901-024 ≣B90?
323Nydegger Charles ...1814Grass Silvio0-121 ≣B90It (open) (seniors)
59Obran Harald (AUT)1988Burghardt Jozsef ...21601-019 ≣B90It (open) Nyar
295Odinaev Timur (RUS)2279Chernov M (RUS)22351-020 ≣B90Ch SibFO 15 Mar 2008
141Osmanovic Faruk (...2119Mijatovic Andrea ...18481-021 ≣B90It (open)18 May 2007
109Ostojic Predrag (...2325Krudde Fitzgerald...22981-019 ≣B90It (open)
443Owen LouisKuntschke Leopold...1-020 ≣B90Europe Tournament...
83Pablo Marin Aleja...2390Colls Gelaberto E...21841-021 ≣B90It (open)
325Padeiro Jose (POR)2213Costa Joao Guerra...20821-022 ≣B90Ch Portugal (final)
18Pailhe Lionel (FRA)2127Calotescu Ana-Cri...22960-120 ≣B53It (open)