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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
769Maidanova Irina (...1892Sidorchuk Roman (...21750-128 ≣B90Memorial T.Petros...
679Maiorov Daniel (GER)1874Rafiee Makan (GER)21481-023 ≣B90Ch Germany (junio...13 Jun 2007
882Maiorov Daniel (GER)1980Quaschner Tobias ...19890-120 ≣B90Ch Germany (junio...27 Dec 2010
225Maki Veijo (FIN)2365Hansen Curt (DEN)25000-125 ≣B90It
325MaksimovicBogic Stevan (SRB)22021-023 ≣B90corr.
473Mali MihaGruskovnjak Tomis...22270-121 ≣B90It (open)
643Malykh Kristina (...1985Doroshenko Diana ...20531-020 ≣B53Ch MinPros (g)
173Malyszko AHallier Karl Hein...1-028 ≣B90Europe Tournament...
794Mamedov Rauf (AZE)2645Cernousek Lukas (...24311-028 ≣B53It \23 Jul 2009
298Manduch Milan (SVK)2200Mitov Borislav (BUL)20921-017 ≣B90Europe Tournament...
577Manescu Tiberiu (...2333Nemeth Francisc (...24030-119 ≣B53It (cat.2)
446Manescu Tiberiu (...2402Shanava Konstanti...25620-117 ≣B90Ch Europe (junior...
374Manik Mikulas (SVK)2370Stohl Igor (SVK)25601-028 ≣B53It (open)
836Manoch MauriceGoudriaan Etienne...0-119 ≣B90Ch Netherlands (j...04 May 2010
733Mantler Hendrik (...2168Gustain Marc (GER)20641-020B90Ch Germany (junio...04 Jun 2008
113Mantyniemi JaakkoRintamaki Lauri1-025 ≣B90?
715Marasli Tutku Kah...2192Akyuz Alpdogan (TUR)18861-027 ≣B90Ch Antalya (open)04 Feb 2008
6Maric Rudolf (YUG)2450Gligoric Svetozar...24470-120 ≣B90It
630Marie Maxime (FRA)2152Eklund Kari (FIN)22281-028 ≣B90Ch Finland (team)...12 Nov 2005
162Marotz HJRaymaekers Rene0-119B90Europe Tournament...
497Marquez AlbertoRestrepo Alejandro1-021 ≣B90Ch Antioquia
146Martin Andrew D (...2399Nunn John D M (ENG)25000-121 ≣B90?
527Martinez Martinez...2178Atienza Jesus1-027 ≣B90It (open)
208Martinez Noel (CUB)2186Vera Reynaldo (CUB)24400-121 ≣B90?
449Martinez Valero JVilarrasa Grabulo...21770-122B90It (open)
481Martin Gonzalez A...2422Calaf Rellver Gui...22501-028 ≣B53It (open)
585Martin Perez Javi...2232Pereira Figueroa ...20971-021 ≣B90It (open)18 Feb 2004
448Martins Carlos (BRA)2305Martinez Carlos A...24250-127 ≣B90Ch Paulista
774Mascarenhas Alber...2206Maia Marco Aureli...21361-028 ≣B90Tournament (open)04 Apr 2009
869Matthews Shane (JAM)2227Seegolam Pradeep ...20401-021 ≣B90Olympiad25 Sep 2010
50Matulovic Milan (...2394Kavalek Lubomir (...25271-026 ≣B90Izt
772Maze Sebastien (FRA)2546Papadopoulos I (GRE)24441-020 ≣B90Ch Europe14 Mar 2009
12Mazzoni Guy (FRA)2191Simonovic Borko1-022 ≣B90?
258Medeiros MarneLima B1-020 ≣B90corr.
641Medina Ricardo (HON)2052Rajapakse Mudiyan...1-027 ≣B90Olympiad02 Jun 2006
800Melia Salome (GEO)2441Stiri Alexandra (...21631-023 ≣B90It (open) \10 Aug 2009
72Melnick PBurrows Daniel1-023 ≣B90corr.
193MelzerVokler1-024 ≣B90corr.
262Melzer GeorgKarnitzschky M1-025 ≣B90corr.
338Mendoza V Oscar EPerez S Juan Fran...0-120 ≣B90Tournament (qual)
926Mesaros Florian (...2036Recklingloh Frank...21880-126 ≣B90It (open)12 Jul 2012
506Meszaros Tamas (HUN)2216Guld Attila (HUN)20971-018 ≣B90Ch Hungary (junio...15 Apr 2000
525Meszaros Tamas (HUN)2364Solti Laszlo (HUN)20951-025B90Cup Tenkes (open)19 Nov 2001
717Meurs Tom (NED)2110Paulet Iosefina (...23070-127 ≣B90It (open)16 Feb 2008
914Mihajlov Svetosla...2101Nwachukwu Chino (...19711-027 ≣B90It (open) \02 Feb 2012
538Mikhalichenko Vla...2234Zubov Oleksander ...23290-125 ≣B90Ch Ukraine (junio...
58Mikulcik Ladislav...2245Ivkov Borislav (SRB)24161-020 ≣B90?
564Milher AlbertoCuberli Emiliano ...21360-128 ≣B90It (open)
900Milosevic Jovana ...1767Milosavljevic Mil...18960-127 ≣B90Ch Serbia (junior...07 Aug 2011
621Minakov VitaliyShvydchenko Sergey0-128 ≣B90Memorial Sakharov...13 Jul 2005
13Minic Dragoljub (...2355Korchnoi Viktor (...25561-024 ≣B90Match \
773Mkrtchian Lilit (...2467Romanko-Guseva Ma...24471-028 ≣B90Ch Europe (w)19 Mar 2009
274Moilanen OlliKorhonen0-125 ≣B90Ch Finland (team)
34Molarius Reijo (FIN)Harju Antero1-016 ≣B90?
352Molarius Reijo (FIN)Nagel Herbert (AUT)21071-020 ≣B90?
25Molarius Reijo (FIN)Multala Anton0-125 ≣B90?
328Moldovan Daniel (...2436Bouaziz Slim (TUN)23380-121 ≣B90It
424Monakhov S S (RUS)2132Filippov N1-019 ≣B90Ch Moscow (open)
567Monsieux Cyril (FRA)2187Delorme Axel (FRA)21851-020 ≣B90Ch France (junior...
394Moore Harry (CAN)2283Anderson Renard (...22280-124 ≣B90Memorial P.Keres ...
609Moranda Wojciech ...2458Carstensen Jacob ...23111-026B90It (open)29 Dec 2004
63Morgado Juan J (ARG)2219Ravizza Luis1-023 ≣B90corr.
112Morgado Juan J (ARG)2219Rolle Hannes1-028 ≣B90World Tournament ...
151Morris Walter D (...2380Poulsen Allan (DEN)23500-123 ≣B90It (open)
156Morris Walter D (...2380Fedder Steen (DEN)24100-123 ≣B90Ch Cleveland
321Mroz AntoniKociszewski D1-022 ≣B90corr.
412Mudrochova Helena...2080Tokos Jozef (SVK)19990-128 ≣B90Slovak League (2n...
327Mudrochova Helena...2080Slekys Emilis (LTU)23060-124 ≣B90It (open) \
59Muller Hans (AUT)Delplancq P1-027 ≣B90corr.
210MullingRudolph W1-022 ≣B90corr.
88Multala AntonSchwibbe Rudolf1-025 ≣B90?
159Murey Jacob (ISR)2429Pinter Jozsef (HUN)25350-126 ≣B90Olympiad
903Musialkiewicz Jan...2150Obrusnik Michal (...22551-024 ≣B90It (open) \27 Aug 2011
207Mustelin JuhaniLaine Erkki (FIN)1-028 ≣B90?
479Muuss Klaus (GER)2000Hertel Peter (GER)22700-127 ≣B90It (open)
670Nadeev Sergey (RUS)2325Voronin Nikita (RUS)21051-022 ≣B90Ch Central Region25 Mar 2007
266Namyslo Holger (GER)2228Ott Frank (GER)23130-125 ≣B90Ch Baden-Wuerttem...
372Namyslo Holger (GER)2245Astengo Corrado (...21801-028 ≣B90It (open)
428Nataf Igor-Alexan...2440Akesson Ralf (SWE)25201-023 ≣B90It (cat.10)
445Naxakis Theodoros...Askarov Marat (RUS)24940-117 ≣B90Ch Europe (junior...
912Nemeth Miklos (HUN)2452Sandhoefner Flori...22051-018 ≣B90Bundesliga B Mitt...03 Dec 2011
913Nepomucky Ondrej ...2234Sobek Jaroslav (CZE)22671-021 ≣B90Ch Czech Republic...11 Dec 2011
714Nesterovsky Alex ...2249Alexikov Alexande...23711-027 ≣B90Tournament \
554Nevanlinna Risto ...2343Roeder Mathias (GER)24421-09 ≣B90It (open)15 Jan 2002
646Nguyen Anh Dung (...2541Zakaria Fairin (MAS)22251-026 ≣B90It (open)21 Aug 2006
871Niehaus Frank (GER)2232Kachibadze Georg ...22720-128 ≣B90It (open) \20 Oct 2010
579Niering Martin (GER)2198Feige Manuel (GER)23690-128 ≣B53Oberliga East A 2...09 Mar 2003
765Nigmatov OrtikElistratov Semen1-020 ≣B90Ch World (juniors...30 Oct 2008
43Nikitin Yury MHajkin1-025 ≣B90Ch URS
51Nilsson Sven (SWE)Geller Efim P (RUS)24550-120 ≣B90It
385Nina Miguel (PER)2298Robledo Manuel (PER)22060-127 ≣B90Ch Peru (1/2 final)
798Nithander Victor ...2422Ruecker Benjamin ...22581-024 ≣B90It (open)29 Jul 2009
465Noirot Florent (FRA)2096Delalande Thierry...21361-016 ≣B90It (open)
85Noria Joaquin (ESP)2305Thannheiser Thoma...22521-027 ≣B90Ch Europe (team) ...
287Nowak StanislavMarkiewicz Maria1-020 ≣B90Memorial Jadasza ...
234Nunn John D M (ENG)2590Kasparov Garry (RUS)27400-127 ≣B90It \
195Nunn John D M (ENG)2590Helmers Knut J (NOR)24651-025 ≣B90It (cat.12)
294Obad ANovikov Igor A (USA)25000-125 ≣B90?
608Oertel David (GER)2013Seiler Sascha (GER)20540-122B90Ch Germany (junio...29 Dec 2004
320Oim Tonu (EST)Prada Rubin Ferna...21691-022 ≣B90It (active)