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Sicilian, Boleslavsky Variation, 7.Nb3 Notation: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3

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
662Ewert Paul1519Kempe Markus13970-128 ≣B30Ch Germany (open)...25 May 2010
470Habunek Patrick (...1786Blasco Robert14101-026B33It (open)27 Dec 2004
733Silva Alexandre F...1840Correia Vitor Paie15041-023 ≣B33Tournament (open)28 Jan 2012
92Pletsch Andreas2016Schmidt Heike15201-030 ≣B33It (open)
403Weisz Pierre (FRA)2017De Castet Antoine...16091-022 ≣B32Ch Paris (open) (B)
548Labedz Patrycja (...1992Orzechowski Micha...16221-031 ≣B54It (open)18 Jan 2008
356Geissler Dieter (...2058Stock Hugo (GER)16361-030 ≣B33Ch Germany (seniors)
663Fieberg Samuel (GER)1777Sieber Fiona (GER)16370-123 ≣B54Ch Germany (junio...28 May 2010
50Free TerryHansen Aage (DEN)16401-027 ≣B30Ch World (for the...20 Sep 1978
155Cheron Stephane (...1952Charlot R16700-124 ≣B54It (open) \
685Stojanovic Kosara...1914Maljevic Aleksa (...16730-120 ≣B33It (open)30 Nov 2010
409Markantonaki Hari...2059Polyzou H16851-022 ≣B33Ch Greece (junior...28 Apr 2002
604De Seroux Camille...1950Karasova Daria (RUS)16861-026 ≣B54Ch Europe (w)18 Mar 2009
707Szukics Adam (HUN)1646Ugroczky Peter (HUN)16881-030 ≣B54Ch Hungary (junio...29 Jun 2011
725Markos Adam (HUN)1935Ugroczky Peter (HUN)16881-025 ≣B54Ch Hungary (junio...05 Nov 2011
410Lundberg Gunnar (...1985Tschirky Werner (...17201-030 ≣B54Ch World (seniors)
554Sliwicki Damian (...1738Miskiewicz Kamil ...17311-032 ≣B54Ch Poland (junior...15 Mar 2008
567Novy J1655Vancat M17350-132 ≣B54It (open)
728Marchadour Emilie...2022Auvray Honorine (...17381-022 ≣B33Ch France (team) ...11 Dec 2011
678Burani Eugenio (ITA)1899Gemelli Giovanni ...17411-023 ≣B33Tournament (open)25 Sep 2010
578Kyas Philipp (GER)1889Chmielewski Jakub...17481-030 ≣B54Ch European Union...08 Aug 2008
660Zochowski Kacper ...1903Chmielewski Jakub...17511-023 ≣B54Ch Poland (junior...04 May 2010
720Somasundram Jayak...1959Paseka Christian ...17521-032 ≣B54Ch Vienna State (b)17 Sep 2011
735El Ters Antouan2226Chamlian Aram17551-026 ≣B30It (open)09 Feb 2012
645Xiong Ferdinand (...1822Grigorian Spartak...17621-032 ≣B54Ch Germany (junio...29 Dec 2009
623Reznikov DaniilIvanova Simoneta ...17630-126 ≣B54It (juniors) \24 Jun 2009
641Gokkaya ErmanMammadov Mehdi Na...17691-024 ≣B33Ch World (juniors...22 Nov 2009
518Malec Sebastian (...1779Cichy Kamil (POL)17730-129 ≣B54Ch Poland (junior...05 Mar 2007
517Tobolski Jakub (POL)2001Cichy Kamil (POL)17731-028 ≣B54It (open)18 Feb 2007
705David Ivan1970Dias Theodore (FRA)17771-030 ≣A04It (open)19 Jun 2011
564Belitzky Dmitri G...2084Zavialova Ekateri...17831-030 ≣B33Memorial Y. Voron...
617Gubela Hans-Erich...1721Collmer Dominik (...17850-132 ≣B33Ch Germany (junio...04 Jun 2009
488Bruckner Paul1530Churt Kerstin Dr17870-118 ≣B32Ch Mittelfranken ...04 Dec 2005
714Luzi Alessandro1920Spano Cuomo Gaeta...18051-027 ≣B33It (open)22 Aug 2011
220Muekke JFErhard Walter18201-029 ≣B54It (open)
559Sobierska Wiolett...1982Raszkiewicz Agnie...18261-020 ≣B33Ch Poland (junior...01 Apr 2008
555Renkowski Piotr (...1663Cichy Kamil (POL)18281-032 ≣B53Ch Poland (junior...16 Mar 2008
494Breslavska Galina...2176Choba Yulia (UKR)18311-026 ≣B30Ch Ukraine (junio...10 Feb 2006
741Miroi Robert-Andrei1817Radulescu Vlad-Al...18360-127 ≣B54Ch Romania (junio...08 Apr 2012
78Holl Andreas (GER)2149Reichenbacher Ger...18401-032B33corr.
563Shmat Anna (UKR)1820Pershina Ljudmila...18690-128 ≣B33Ukrainian Games (...19 May 2008
386Hernandez Alexand...2269Vasquez Rafael (COL)18741-025 ≣B33It (open)
708Amado Maldonado JhonGomez Perez Jaido...18850-120 ≣B33Ch Pan-American (...05 Jul 2011
545Gomez Figueroa Ma...1970Padros Martinez A...18931-021 ≣B54It (open) (b)01 Jan 2008
180Ricardi Pablo (ARG)2495Gomez Ruben (ARG)18931-022 ≣B33It (open)
276Enrique Veronica ...Prior Marciane (BRA)19010-123 ≣B33Ch Pan-American (...
717Rocen BojanaTomin Ksenija (SRB)19010-123 ≣B54Ch Serbia (team P...29 Aug 2011
723Avila Pedro (COL)2102Vargas Eduar Misael19071-032 ≣B54It (team)17 Oct 2011
655Garcia-Galan Ruiz...Candamil Neira Ga...19111-017 ≣B23It (open)27 Feb 2010
203Berger Joachim (GER)2042Gombert Reiner (GER)19120-125 ≣A00Ch Schleswig Hols...
172HerrouAppavou Calixte (...19161-031 ≣B32It (open)
282Majul Isolina (COL)2088Villegas John19201-028 ≣B54Tournament
746Pedrotti Luciano ...1812Nepi Ezio (ITA)19270-132 ≣B54It (open)28 Jul 2012
355Buss Richard (GER)1669Langmann Claus (GER)19300-123 ≣B33Ch Germany (seniors)
744Drop Szymon (POL)1766Piotrowski Przemy...19330-129 ≣B54Ch Poland (team) ...
568Sterba Karel (CZE)1855Cekan Petr (CZE)19391-031 ≣B54It (open)
539Klimov Valery (RUS)1936Boryak Alexey (RUS)19420-128 ≣B33Ch City (seniors)27 Sep 2007
477Melzer Georg1743Schiewer Robert19420-125 ≣B33Landesliga 2004/0513 Mar 2005
700Moskvin MaksimGeyko Roman (RUS)19440-130 ≣B33Tournament \
569Donohue Tom (SCO)1906Schmerwitz Reinha...19441-025 ≣B54Ch Scotland11 Jul 2008
711Stasius Vidmantas...1984Petraitis Gintaut...19460-124 ≣B54It (open)26 Jul 2011
480Brekka Hanus (FAI)2115Nielsen Carl-Otto...19471-017 ≣B33It \21 Jul 2005
532Makosa Sylwia (POL)1862Kowalska Elzbieta...19490-122 ≣B33It (open) (b)25 Jul 2007
570Penalosa Pinilla ...2238Navas Jimenez Jul...19521-028 ≣B54It (open)20 Jul 2008
648Romero ReinaldoVargas Edward Mis...19520-128 ≣B54It (open)10 Jan 2010
590Tylecek Drahomir ...2002Gil Karel (CZE)19591-023 ≣B33Czech League 2008...23 Nov 2008
724Olsen Kar1604Piotrowski Przemy...19600-122 ≣B54It (open)26 Oct 2011
521Varkvasov ValeryDavyidenko Stepan...19600-129 ≣B54Ch SibFO (open)22 Mar 2007
706Skulkin Nikolay (...1814Suhachev Viktor (...19660-121 ≣B33Memorial Petrosia...25 Jun 2011
716Hrubsa Marian (SVK)1929Svoboda Adam (SVK)19670-127 ≣B33It (open)24 Aug 2011
557Tran Tuan Minh (VIE)2261Phan Dinh Nhat Kh...19671-032 ≣B33Ch Vietnam
177Mach Anton (SVK)Stefan Oldrich (SVK)19720-126 ≣B54Ch Slovakia (team...
246Stepanovic Branis...1995Stefan Oldrich (SVK)19721-024 ≣B54Ch Slovakia (team...
606Merta Vlastimil (...1944Gil Karel (CZE)19790-129 ≣B33Czech League 2008...22 Mar 2009
732Simonik Adam1885Svoboda Matej19820-116 ≣B33Extra League 2011...21 Jan 2012
742Tapera Uzeni1949Ponelis Albert A19861-023 ≣B33It (c)28 Apr 2012
576Kuteneva Galina (...1915Nikolaev Alexande...19860-132 ≣B54Tournament (open) \04 Aug 2008
556Chomski Maciej (POL)1802Wisniowska Klaudi...19880-132B54It (open)25 Mar 2008
639Hernandez SchneiderJimenez Daniel (COL)19920-127 ≣B54Ch Colombia (amat...14 Nov 2009
434Bernard Benjamin1756Thuerauf Peter (GER)19940-124 ≣B33Ch Mittelfranken ...16 Apr 2003
450Reuschel Stefan (...2042Thuerauf Peter (GER)19941-027 ≣B33Ch Mittelfranken ...07 Apr 2004
727Chakeeva AAlpysbayeva Aiger...19950-122 ≣B54It (open)04 Dec 2011
531Barszcz Michal (POL)1707Ponceleusz Bronis...19950-131 ≣B33It (open) (b)20 Jul 2007
596Christensen Esben...2034Jorgensen Kasper ...20030-128 ≣B33Tournament (open) \06 Jan 2009
137Ljubic Pero (CRO)2102Kerschenbauer Fra...20060-125 ≣B33It (open) (b)
634Larusson Agnar Da...1752Sigurdsson Sverri...20130-132 ≣B54Ch Iceland (cand.)03 Sep 2009
275Moreno Mestre Jul...2090Rodes Apilluelo J...20160-132B33It (open)
680Koval Anton (SVK)2156Vermirovsky Vlast...20181-030 ≣B54It (open) \04 Oct 2010
437Flanagan Keith GHeath Jeffrey (ENG)20190-126 ≣B54It (open)23 Oct 2003
341Jenc Milan (CZE)1888Snaidr Jiri (CZE)20190-127 ≣B33It (open) \
273Juranic Bruno (CRO)2183Karakatic Tomisla...20200-130 ≣B33Ch Croatia (team)...
321Riman Vaclav (CZE)2045Macicek Jan (CZE)20211-031B33Ch Moravia (junio...
495Vargyas Zoltan (HUN)2160Havaskori Laszlo ...20291-030 ≣B54Tournament (Elo) (a)14 Feb 2006
290Garcia ChristopheRouverol Guy (FRA)20301-032 ≣B33Ch France (team) ...
199Sintes Marc (FRA)2057Soalleiro Jean20301-031 ≣B23Tournament
486Silva Arajo Mario...1957Masich Vladimir (...20300-131 ≣B30Ch World (seniors)01 Oct 2005
351Llobet Reus Joan ...2069Fernandez Pintado...20321-031 ≣B53It (open) \
120Fuchs Antje (GER)2124Geissler Grit (GER)20351-031 ≣B33Ch Germany (w) (o...
266Zakurdjaeva Irina...2115Bobko Ekaterina (...20351-024 ≣B23Ch Russia (junior...
602Natterer Winfried...1793Oud Niek (NED)20370-130 ≣B33It (open)09 Mar 2009