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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
102Kuebler AGrabowski1-028 ≣B90Europe Tournament...
843Kudela Stanislav ...1965Klement Lukas (CZE)22050-124 ≣B90It (open)15 Jun 2010
356Kubitzek W2070Puth Dieter (GER)21710-123 ≣B90Ch Reinland-Pfalz...
343Kubitza GeorgKos Sebastian (GER)22081-018 ≣B90Ch NRW (juniors) ...
916Kuba Jindrich (CZE)2211Blecha Miroslav (...22300-120 ≣B90Czech League 2011...19 Feb 2012
830Krzyzanowski Marc...2356Sikora Jan (CZE)22401-021 ≣B90Czech League 2009...11 Apr 2010
791Krzywkowski Marci...1986Traczewski Wojcie...18691-021 ≣B90It (open)20 Jul 2009
792Krzywkowski Marci...1986Ulanowski Karol (...17771-026 ≣B90It (open)20 Jul 2009
556Kruppa Dominik (SVK)2091Meszaros Michal (...23090-117 ≣B90Ch Slovakia (juni...25 Feb 2002
466Kropik Jan (CZE)2048Blazkova Petra (CZE)22450-127 ≣B90It (open)
387Krol Alan (POL)2072Jedynak Radoslaw ...24941-020 ≣B90Ch Poland (1/2 fi...
144Kroener Otto (GER)1987Krueger Heiner (GER)20801-021 ≣B90corr.
862Krivoborodov Egor...2499Palac Mladen (CRO)25611-018 ≣B90It (open)28 Aug 2010
202Krivic DHallier Karl Hein...1-025 ≣B90Europe Tournament...
570Krejci Jan (CZE)1719Sobek Jaroslav (CZE)23210-127 ≣B90It (open)
491Krebs JuergenChun Eng Terry Toh1-011 ≣B90corr. ICCF
795Kravtsiv Martyn (...2527Jens Jelmer (NED)23561-026 ≣B90It (open)25 Jul 2009
543Kravchenko Leonid...2061Delorme Axel (FRA)20711-022 ≣B90Ch Europe (junior...
790Kratochvil Karel ...2128Cernousek Lukas (...24311-027 ≣B53It \19 Jul 2009
381Krahe Frank Dr (GER)2178Neville M0-124 ≣B90Cup Armstrong
859Kozganbayev Erken2206Ismailov Mukhit (...20611-027 ≣B90Tournament (open)22 Aug 2010
619Kozamernik Janez ...2188Vesel Mark (SLO)20801-027 ≣B90Cup Slovenia16 May 2005
835Kovtunenko Alexan...2213Frolova Ekaterina...20631-025 ≣B90It (open) \01 May 2010
71Koutsouvelis ASkalkotas Nikolao...22600-117 ≣B90Tournament
540Kotronias Vasilio...2573Froehlich Peter (...24211-028 ≣B90It (open)
430Kotronias Vasilio...2585Shipov Sergei (RUS)25751-026 ≣B90Tournament (team)
504Kotronias Vasilio...2539Ilincic Zlatko (SRB)25631-028 ≣B90Zt
4Kotkov Yuri M (RUS)2390Ruchkin Yuri (RUS)22380-117 ≣B90Tournament
311KotkovCharushin Victor0-118 ≣B90Ch World (corr.)
562Kosteniuk Alexand...2508Dvoirys Semen I (...26151-025 ≣B90It (open)
816Kosteniuk Alexand...2516Grischuk Alexande...27331-024 ≣B90It \17 Nov 2009
761Kosteniuk Alexand...2525Ju Wenjun (CHN)23971-028 ≣B90World Mindsports ...04 Oct 2008
418Kosebay Osman (TUR)2216Sanchez Guirado F...23601-026 ≣B90It (open) \
337Koscielski Janus ...2305Movsziszian Karen...24400-128 ≣B54It (open)
235Kosanovic Goran A...2362Marjanovic Slavol...25150-126 ≣B90Ch Yugoslavia
269Kordonowski Frank...2034Schwarze A0-127 ≣B90corr.
171KoppSoltau Achim (GER)19990-128 ≣B90Ch BRD (corr.)
728Konijn RBoulahfa Hicham (...20000-125 ≣B90It (open)12 May 2008
666Konijn Bart (NED)2239Becker Martin (GER)23650-124 ≣B90NRW-liga 2006/0725 Feb 2007
11Kolpakov MikhailNikitin Aleksande...24301-027 ≣B90Ch URS (team)
474Kolev Atanas (BUL)2558Calaf Rellver Gui...22501-027 ≣B53It (open)
677Koksch Florian (GER)1864Kabitzke Julian (...18160-125 ≣B90Ch Germany (open)...
264Kokkila Tero (FIN)2330Kopsa Petri (FIN)20761-018 ≣B90It (open)
636Kokarev Dmitry (RUS)2536Nechepurenko Roma...24791-026 ≣B90It (open) \09 Feb 2006
546Kokarev Dmitry (RUS)2504Popov Valerij (RUS)25790-127 ≣B53Cup Russia (open)
545Kokarev Dmitry (RUS)2504Melkozerov Dmitry...23901-026 ≣B90Cup Russia (open)
857Knottnerus Ivo (NED)1956Shing Cheu15171-020B90Ch Netherlands (o...11 Aug 2010
831Knoll Hermann (AUT)2382Sandhoefner Flori...22431-028 ≣B90Bundesliga B Mitt...18 Apr 2010
93Knight Timothy2200Nixon Rodney (ENG)20110-127 ≣B90Ch Europe (juniors)
644Klokas Konstantin...2231Erdogdu Mert (TUR)23830-118 ≣B90It (open) \19 Aug 2006
899Klein Andreas (GER)2089Hansch Klaus-Mich...19611-026 ≣B90It (open) (b)06 Aug 2011
711Kleijn Christov (...2210Pijpers Arthur (NED)20001-024 ≣B50It (open)23 Dec 2007
288Kivi KalervoTapani1-021 ≣B90Memorial Koskinen...
893Kitze Alexander (...1777Brandl Lea Maria ...15421-025 ≣B90Ch Germany (junio...18 Jun 2011
462Kislov Sergey (RUS)2360Dorokhin Mikhail ...22371-021 ≣B90It (open)
522Khruschiov Alexey...2402Vaulin Alexander ...25481-021 ≣B90Cup Russia (open)
851Keuneke Hanno (GER)1737Poghosyan Tigran ...17581-018 ≣B90It \15 Jul 2010
1Keres Paul (EST)2580Fuderer Andrija (...1-018 ≣B90
176Kenworthy Gary (ENG)2297Kwiatkowski Felik...22411-025 ≣B90?
425Kazarova Irina (RUS)2175Kuznetsova Elena ...21561-027 ≣B90Cup Russia (open)
810Kazakos Emmanouil...1981Li William1-026 ≣B90Olympiad (under 16)28 Sep 2009
342Kaveh TSadeghi V1-025 ≣B90Ch Iran
784Kavcic Zan (SLO)2301Gruskovnjak Tomis...23630-128 ≣B90Cup Slovenia (team)24 May 2009
380Katona Marton (HUN)2200Kanyadi Zoltan (HUN)21171-028 ≣B90Ch Chess Club
341Kastelijn TwanVan Aurich Rob1-018 ≣B90Tournament
691Karystianos Petro...1496Anastasopoulos Sp...20770-128 ≣B90It (open)24 Aug 2007
152Karlsson EvertRaymaekers Rene1-024 ≣B90Europe Tournament...
76Karklins Andrew (...2205Friedman Edward (...22731-026 ≣B90Ch USA
596Karatorossian Dav...2384Seres Lajos (HUN)24431-026 ≣B90It (cat.7)13 Jun 2004
408Kammer Christoph2030Hartmann Wolfram ...22440-121 ≣B90It (open)
806Kalugampitiya R S...2131Tirto (INA)24070-128 ≣B90Ch City (open)08 Sep 2009
8Kaasalainen ArvoRompotti Pertti (...1-019 ≣B90?
81Joseph PeterScalisi1-028 ≣B90corr.
271Jonsson BirgerMoser Patrick0-124 ≣B90Ch Sweden (corr.)
470Johansson Krister...Schmidt Theo (GER)20081-024 ≣B90Ch World (e-mail)...
87Johansson ArneRompotti Pertti (...1-025 ≣B90?
26Jimenez Eleazar (...2365Letelier Rene (CHI)21511-021 ≣B90Ch Pan-American
373Jensen Find (DEN)Andersen Preben (...20151-024B90Cup Bikuben (2)
876Januszkiewicz Woj...1770Puszkarek Kamil (...17511-024 ≣B90Tournament (open)21 Nov 2010
735Janulynas Jonas (...1809Urbonaviciute Ziv...17651-020 ≣B90Cup Baltija (open)17 Jun 2008
104Jantunen OlliYesper Alfredo1-027 ≣B90?
507Jansen Dirk (GER)2130Zimmermann Hendri...20891-028 ≣B90It (open)
64Janosevic Dragolj...2330Palmiotto Fiorent...21041-023 ≣B90It
161Janocha Wieslaw (...2288Mitov Borislav (BUL)20920-122 ≣B90Europe Tournament...
788Jandric Damjan (SRB)1872Pulvett Daniel (VEN)22230-123 ≣B90Ch World (for the...22 Jun 2009
33Jaderholm Bo (FIN)1879Saily Frans1-022 ≣B90?
826Ivekovic Bozidar ...2089Raguz Dario (CRO)22131-026 ≣B90It (open) (b)26 Feb 2010
897Ivekovic Bozidar ...2218Glavan Marko (CRO)18760-123 ≣B90Ch Croatia (junio...25 Jul 2011
259Ivan Attila (HUN)2271Spasov Vasil (BUL)25901-028 ≣B90It (open)
669Istrati Iulia (ROM)Padurariu Smaranda0-127 ≣B90Ch Romania (junio...18 Mar 2007
858Ismail Shereif (EGY)2243Dimopoulos Dimitr...19531-022 ≣B90It (open)20 Aug 2010
302Iodice GAstegno Roberto1-024 ≣B90corr.
303Iodice GSchettini B1-027 ≣B90corr.
314Iodice GAgazzi Fulvio1-027 ≣B90corr.
206Incelli RenatoSvendsen Thomas (...20931-027B90?
55Illi Hans-Joerg (...2122Van Herck Marcel ...21121-025 ≣B90It (open)
779Iermito Sebastian...2431Quiroga Facundo (...23291-024 ≣B90Ch Argentina (1/2...04 May 2009
578Huynh Mai Phuong ...2128Bui T Mai Tram (VIE)1-025 ≣B90Ch Vjetnam (junio...
657Humphrey Jonathan...2256Dombai Istvan (HUN)22071-027 ≣B90It (cat.2) (a)04 Dec 2006
584Huisman Hugues (FRA)2082Delacotte Bruno (...21181-022 ≣B90It (open)15 Feb 2004