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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
359Derkos DArgiroudis Stamat...22050-130 ≣B33It (open)
541Derevianchenko Il...2296Tsirulnik Mark (UKR)21220-129B54Ch Ukraine (junio...17 Nov 2007
454Derbentseva Irina...2069Maslak Alexander ...22050-130 ≣B33It (open) \
591Denisov Ivan (RUS)2189Kharitonov Igor (...21081-024 ≣B54Ch Region (final)23 Nov 2008
218De La Fuente Maya...2212Baron Rodriguez J...22830-125 ≣B54It (open)
129Deakne Baranyai A...Grabics Monika (HUN)23360-126 ≣B33Ch Hungary (team)...
691Deac Bogdan-Daniel1651Malureanu Costin ...21380-131 ≣B33Ch Romania12 Feb 2011
705David Ivan1970Dias Theodore (FRA)17771-030 ≣A04It (open)19 Jun 2011
528David Cosmin Luci...1968Nemes Silviu (ROM)21500-127 ≣B33Cup Felix (open)27 May 2007
204Daude Puvill Anto...2202Gomez Jurado Luis...22750-119 ≣B33It (open)
669Da Silva Lucas De...1460Torsani Pires Mar...21130-120 ≣B54Memorial Walter M...02 Jul 2010
31Dahl KimmoSpassov Liuben (BUL)23670-128 ≣B33Olympiad (student...
738Da Costa Jose Art...2034Araujo Felipe Fer...22690-120 ≣B50Tournament (open)20 Feb 2012
196Daamen Ferry (NED)2200Mellegers Joost (...22900-122 ≣B33Ch Netherlands (t...
633Cvetanovic Uros (...2164Solomunovic Igor ...24210-127 ≣A00It (open)23 Aug 2009
60Cunha Pereira SilvioMasculo Jose (BRA)23100-129 ≣B33Ch Brazil
704Cucu Gheorghe (ROM)1823Senetia Teodor (ROM)22110-127 ≣B54Cup Gaudeamus (open)17 Jun 2011
286Cubas Jose Fernan...2206Chemin Vitorio (BRA)22800-127 ≣B33It (cat.3)
263Csorbai Attila (HUN)2112Pataki Gyozo (HUN)22300-129 ≣B33Cup Tenkes (open)
547Cruz Bartolome (COL)2036Vittorino Carlo (...23430-131 ≣B54It (open)11 Jan 2008
461Crapulli Giuseppe...Van De Walle Rob0-126 ≣B54Ch NATO13 Aug 2004
686Corredor Fabian (...1984Ovalle Odilio1-026 ≣B33It (open)05 Dec 2010
640Correa Octavio De...Santa Santa Danie...1-030 ≣B33It (open)16 Nov 2009
419Cordovil Joao (POR)2254Costa Paulo (POR)21871-027 ≣B54Ch Portugal (team)
420Cordovil Joao (POR)2254Fernando Diogo (POR)24380-125 ≣B54Ch Portugal (team)
402Cooke Eric (USA)2210Perez Luis Manuel...23890-122 ≣B33It (open)
740Contreras Miguel ...2088Cifuentes J21140-125 ≣B54It \08 Apr 2012
113Conquest Stuart (...2460Kotronias Vasilio...25201-024 ≣B54It (open)
327Coman OvidiuFlorescu Petru (ROM)21990-122 ≣B54Ch Romania (junio...
228Collet MarkLeidorf M0-123 ≣B54It (open)
221Cipa Michal (POL)2048Kasprzyk Tomasz (...20841-028 ≣B54Ch Poland (team) ...
596Christensen Esben...2034Jorgensen Kasper ...20030-128 ≣B33Tournament (open) \06 Jan 2009
693Choremska Zuzanna...1461Tomczak Marta1-025B32Ch Poland (team) ...02 Apr 2011
556Chomski Maciej (POL)1802Wisniowska Klaudi...19880-132B54It (open)25 Mar 2008
155Cheron Stephane (...1952Charlot R16700-124 ≣B54It (open) \
20Cherepkov Alexand...2395Vladimirov Boris ...23400-128 ≣B33Ch URS (1/2 final)
126Chehayeb SalahNoren K1-030 ≣B33It (open)
267Charneira Hermene...2140Costa Paulo (POR)21440-130 ≣B54Ch Portugal (team...
354Chalupecky Vladim...2095Stastny Jan (CZE)21861-030 ≣B54Czech League (V) ...
727Chakeeva AAlpysbayeva Aiger...19950-122 ≣B54It (open)04 Dec 2011
491Cetkovic Bozidar ...2215Klasan Vladimir (...22200-130 ≣B54It (open)28 Jan 2006
315Cernousek Lukas (...2203Snajdr Jiri0-128B33Ch Czech Republic...
748Cekanauskas Justa...1732Skripkiunas Benas1-028 ≣B33It (open)17 Aug 2012
670Castano Duvan Mar...2311Mendoza Rafael (COL)23420-125 ≣B50Ch Colombia02 Jul 2010
411Cascudo Pueyo Ign...2051Carracedo Rodrigu...1-026B54It (open) \
666Carneiro Francisc...1968Barreto Filho Car...23460-128 ≣B54It (open)04 Jun 2010
43Cardoso Radolfo T...2330Mihaljcisin Mihaj...22800-132 ≣B33It
367Cardoso Pedro Mad...2180Andrade Leonardo ...22630-129 ≣B54It (open) \
241Campe Herbert (GER)1846Schneider Hennig ...21910-128 ≣B33It (open)
238Camara ArturoSuarez Santiago (...21230-122 ≣B54It
406Caldeira Adriano ...2377Milos Gilberto (BRA)25800-131 ≣B33Cup Itau (open)
202Cajal Andre (BRA)2081Limp Eduardo (BRA)23250-127 ≣B23It (open)
355Buss Richard (GER)1669Langmann Claus (GER)19300-123 ≣B33Ch Germany (seniors)
1Busek HansSajtar Jaroslav (...0-126 ≣B33Match \
96Burshaid LHakki E0-115 ≣B54Olympiad Arab states
421Burijovich Lilian...2212Atalik Suat (BIH)25410-130 ≣B54It (open)
272Burchert Wolfgang...2167Mainka Romuald (GER)24800-121 ≣B33VK1 1997/98
678Burani Eugenio (ITA)1899Gemelli Giovanni ...17411-023 ≣B33Tournament (open)25 Sep 2010
628Bulmaga Irina (MDA)2277Raeva Elitsa (BUL)22360-130 ≣B33Ch Bulgaria (open...29 Jul 2009
271Buerger Helmut (GER)1900Becher Helmut Dr ...20720-128 ≣B33Ch SVR (2)
647Brylova Natalia (...1898Shaidullina Sandu...21750-131 ≣B33Ch PriFO (w)06 Jan 2010
460Bruno Ronald (USA)2214Van Buskirk Charl...22930-122 ≣B54Ch Southern Calif...24 Jul 2004
488Bruckner Paul1530Churt Kerstin Dr17870-118 ≣B32Ch Mittelfranken ...04 Dec 2005
661Brkic Ivica (CRO)2164Biliskov Vjekosla...22960-130 ≣B54It (open)09 May 2010
494Breslavska Galina...2176Choba Yulia (UKR)18311-026 ≣B30Ch Ukraine (junio...10 Feb 2006
480Brekka Hanus (FAI)2115Nielsen Carl-Otto...19471-017 ≣B33It \21 Jul 2005
84Brdicko Petr (CZE)2255Weglarz Leszek (POL)22240-132 ≣B33Cup Warsaw
59Bozic AleksandarDamljanovic Brank...26070-125 ≣B54It30 Jan 1980
22Bouwmeester Hans ...2343Roessel Fritz (NED)0-111B33It
83Bouaziz Slim (TUN)2370Salov Valery (RUS)25750-127 ≣B33Izt
105Bouaziz Slim (TUN)2338Ziska Bogi (FAI)22021-028 ≣B33Olympiad
571Botheim Tor (NOR)1987Matthiesen Martin...22980-132 ≣B33It (open) \20 Jul 2008
447Borigas Edgardo (...1986Ak Qadri Pg Mohd ...0-130 ≣B30Ch Asian Cities (...25 Mar 2004
393Borekci GucluJobava Beglar (GEO)23530-124 ≣B54It (open) \
28Bonfioli MarcoTrincardi Tullio ...22350-122 ≣B33It
537Bondar Leonid (USA)2066Danner Georg (AUT)24340-119 ≣B33Ch World (seniors)17 Sep 2007
575Bollaart Jeroen (...1911Nijboer Friso (NED)25400-132B33It (open)02 Aug 2008
448Bogomolova Ekater...2080Ivakhinova Inna (...21771-024 ≣B33Ch Russia (junior...
24Bogdanov Anatoly ...Kamensky Vitaly (...1-024 ≣B33Ch Russia (for th...
67BoeredougaWhitehead Jay E (...23250-125 ≣B33Ch World (team) (...
472Boehm Thomas (GER)2205Leks Hanna (POL)22090-126 ≣B54It (open)
2Bobotsov Milko G ...2405Malchev Andrei0-124B33Ch Bulgaria
474Blecha Miroslav (...2148Seleljo Daniel (CZE)22510-128B33Czech League 2004...06 Feb 2005
694Blazeka MihaelaPetrusic Toni (CRO)21700-131 ≣B54It (open) (b)13 Apr 2011
109Blasi FBjelica Dimitrije...23801-030 ≣B33It (open)
695Blanco Montes PabloDraghici Gavril (...20760-127 ≣B33Tournament (open) \20 Apr 2011
27Bisguier Arthur B...2237Saidy Anthony F (...23360-128 ≣B33Ch USA
29Bisguier Arthur B...2237Saidy Anthony F (...23360-128 ≣B33Ch USA16 Dec 1963
185Binder Tamas (HUN)2277Varga Zoltan (HUN)25350-119 ≣B33It (open)
588Bigalke Tobias (GER)2101Stabolewski Andre...22770-127 ≣B33It (open)06 Nov 2008
624Bharathi R (IND)1952Mamedov Nidjat (AZE)26140-129 ≣B54It (open)
183Bernat Ernest (ESP)2118Campos Moreno Jav...24500-128 ≣B33It (open)
434Bernard Benjamin1756Thuerauf Peter (GER)19940-124 ≣B33Ch Mittelfranken ...16 Apr 2003
281Bermudes Eduardo ...2190Zapata Alonso (COL)24540-128 ≣B54Cup Carnaval (open)
203Berger Joachim (GER)2042Gombert Reiner (GER)19120-125 ≣A00Ch Schleswig Hols...
589Benson Christophe...1927Nokes Roger I (NZL)22930-132 ≣B33It (open)09 Nov 2008
51Benes Petr (CZE)2166Mokry Karel (CZE)24200-128 ≣B32It (juniors) (und...
564Belitzky Dmitri G...2084Zavialova Ekateri...17831-030 ≣B33Memorial Y. Voron...
329Beliaev Sergei V ...2233Maksimenko I0-131 ≣B33Tournament (Elo)
433Beketov Viktor (RUS)2137Gerasimov Alexand...0-124 ≣B33Ch Russia (for th...