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Irregular Openings a3, a4, b3, b4, c3, d3, e3, f3, g3, g4, h3, h4, g3, g4, Na3, Nh3

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
80Visser Yge (NED)2465Aalzum Jv1-012 ≣A00corr.
827Wang, W.2703Aanstad, M.19300-115A00Klubbmesterskapet02 Sep 2004
408Leonavicius Rolan...Abels Dirk (GER)0-115 ≣A00Tournament
688Marin Rengifo And...Abril Bernal Jhon...19580-113A00Tournament (junio...20 Mar 2010
480Horvath Kalman (HUN)2136Abusdal Ivar A (NOR)19901-09 ≣A00It (open) \28 Jul 2005
679Barberi Ricardo A...Acevedo Jonn Ande...0-18 ≣A00It (open) (d)28 Dec 2009
800Primo Novoa WilfridoAcosta Diaz Rafae...0-16 ≣A00Tournament (junio...16 Jun 2012
150LachAdamowski Andrei0-115 ≣A00Memorial Malyszka...
923Haub, T.2315Adamski, J.24150-137A00Giessen Feb-IM
650Voronin VictorAgapchev Andrey (...16861-08 ≣A00Tournament (open) \30 Aug 2009
243Vlassis Panayotis...2132Agouridis Aris (GRE)20961-011 ≣A00It (open)
444Koukoufikis Alexa...2220Agrapidis Th (GRE)19381-014 ≣A00Ch Greece (junior...20 Apr 2003
660Rodrigues Pereira...1851Aguiar Brito Gabr...18080-114 ≣A00Tournament10 Oct 2009
854Perez Candelario, M.2525Aido Espina, S.0-126A00Open San Agustin20 Aug 2003
938Cramling, D.2531Akesson, R.24680-138A00Biel IM Open
168Von Otte WAlber Horst (GER)23400-114 ≣A00Ch Hessen
624Kourkouta EiriniAleksiou Dimitra0-111A00It (open) \26 Mar 2009
516Humeau Cyril (FRA)2159Alesandrini Pierre13101-010A00It (open)
47BrichinovaAlexandrova0-16A00?
491Gulmez IremAlic Gunseli0-111A00Ch Turkey (junior...
469Caruso Augusto (ITA)2244Allegranti Luca (...20241-015 ≣A00Tournament (a)23 Jan 2005
331Linde RodriguezAlonso Velazquez ...0-113A00Ch Asturia (team)...
779Kabanov Nikolai (...2521Alpysbayeva Aiger...19951-012 ≣A00It (open)30 Nov 2011
665Garces Bermeo Kar...Alvarez Juan Evan...0-18A00Ch Colombia (amat...15 Nov 2009
499Awad MarwanAl-Zendani Zendan...23870-114 ≣A00Ch Arab Clubs (team)
366Falkos Anestis (GRE)2055Anagnostopoulos G...1-015 ≣A00It (open)
562Karpinski Paloma ...Andeliere Nicole ...0-110 ≣A00Ch Brazil (w)24 May 2008
875Paulsen, W.2360Andersson, E.25281-030A00Frankfurt
595Ferraz Pedro Dell...Andrade Francisco...0-16 ≣A00Tournament (open)10 Oct 2008
723Kovacevic Bozidar1824Antonic Dusan (SRB)19670-110 ≣A00It (open)01 Dec 2010
716Mukhamadeev Razit...2088Antonov Vasiliy (...18021-015 ≣A00Ch SibFO (seniors)13 Oct 2010
732Leon Acosta Migue...1844Antunez Munoz Jua...18391-08 ≣A00Ch Andalucia (jun...26 Mar 2011
761Dietze Otto (GER)1781Appel Juergen17200-115 ≣A00Ch Germany (seniors)11 Aug 2011
814Sandu Bogdan1200Araujo Rodriguez ...13200-115 ≣A00Memorial Joseito ...02 Sep 2012
434Perez Suso Juan JoseArce Balluerca Jo...21010-115 ≣A00Ch Euskadi
661Leon Manas Jose F...1706Arencibia Jimenez...17360-115 ≣A00Tournament (open)29 Oct 2009
617Krivoshapko Alexa...2047Arkhipov Valentin...20741-011 ≣A00Ch City (open)15 Feb 2009
554Krivoshapko Alexa...2057Arkhipov Valentin...20991-08 ≣A00Ch City08 Feb 2008
42Kleinke UweArnhold Albrecht1-014 ≣A00corr.
759Fortuny Profitos ...1715Arno Bendicho Arn...18971-011 ≣A00It (open)22 Jul 2011
606Nayab NiloofarArosemena Nicole0-115A00Olympiad (w)15 Nov 2008
666Suarez Diana Alej...Artunduaga Ever0-112 ≣A00Ch Colombia (amat...15 Nov 2009
662Roumeliotis Angel...1858Asvestopoulos Hri...18271-07 ≣A00It (open) \
238Petrov P (BUL)2325Atanasiadis Andreas0-113 ≣A00Memorial Baharov ...
539Keiko Reis Minaga...1800Augusto Liborio d...18000-115 ≣A00It (open)19 Oct 2007
582Duran SelimAvetisian Karen0-16 ≣A00It (open) (b)07 Aug 2008
866Guillen, R.Bachmann, A.24810-128A00Mercosur Ch U1205 Feb 2001
850Centeno Perez, B.Bachmann, A.24810-124A00Pan American Ch U10
910Munoz Sanchez, M.2373Bachmann, A.24811-035A00Pan American Ch
835Becker, A.2374Bachmann, A.24811-020A00Karlsruhe22 Apr 2003
747Gundersen Helge (...2212Bachmann Karlhein...22950-112 ≣A00Ch Europe (senior...09 May 2011
563Buss Tainara CatianeBachtin Amanda0-111 ≣A00Ch Brazil (w)25 May 2008
254Erich Juergen (GER)1936Baczinski Wolfgan...19920-113 ≣A00Ch Schleswig Hols...
456Ludwig Lisa (GER)1476Baessler Maike1-012A00Ch Germany (junio...02 Jun 2004
641Karasevich TimofeyBahadir Timucin1-013 ≣A00It (juniors) \28 Jun 2009
544Pavlidis PaulosBakbak Hasim0-19 ≣A00Ch World (juniors...18 Nov 2007
252Simon Peter (HUN)1899Balcerak Magdalena1-09 ≣A00Ch SVR (open)
760Downs Walter ThomasBanerjee Abhimanyu0-18 ≣A00It \06 Aug 2011
947Weyrich, M.2380Bangiev, A.24051-039A00Rinteln Open
802Pruvost Alain (FRA)1604Barbaut Michel (FRA)20320-115 ≣A00It (open)10 Jul 2012
615Virviescas Christ...Barbon Carlos Felipe0-111 ≣A00Ch Colombia (juni...
857Ibarra Chami, L.2136Barbosa Orge, I.1-026A00Mondariz Open 7th27 Jul 2000
298Bardi CiprianBarbu Bogdan0-115 ≣A00Tournament (team)
180Elkins SBarker S0-16A00Tournament (junio...
43Kleinke UweBar Nir A1-011 ≣A00corr.
864Seeman, T.2534Barredo, L.23881-028A00Internet Section ...17 Mar 2003
740Ricardo Garcia JoseBarrios Aldair (COL)19060-16A00Tournament (junio...07 Apr 2011
404Vildoso WilsonBasurco Jenny0-115 ≣A00It (juniors) (und...
290Reimer Karl1704Baumann Walter0-115 ≣A00Ch Pfalz (open)
258Vokac Marek (CZE)2470Bazant Petr (CZE)22951-07 ≣A00Ch Czech Republic...
29Roczniak JanBazylewicz C1-08 ≣A00corr.
836Dobosz, H.2385Bednarski, J.23850-120A00Esbjerg DEN
242Hoelldorfer August1607Behmel Fred17350-111 ≣A00Ch Bayern (senior...
501Cherniy Evgeniy A...1919Belov Igor (RUS)24350-114 ≣A00Tournament \12 Jul 2006
792Castro Gomez Seba...Beltran Daniel Fe...13030-110 ≣A00Tournament (junio...
301Bardi ConstantinBenczedi Jozsef1-010 ≣A00Tournament (team)
607Feofanov Alexande...1778Bereziy Petr (RUS)17941-015 ≣A00Ch City (1/2 final)23 Nov 2008
60Ohlsson RBergsaker0-115 ≣A00Europe Tournament...
314Calin DragosBerintan Teodora ...18491-015 ≣A00Cup Cetate (open)...
385Van Rooijen PeterBerkley Stephen0-18 ≣A00Tournament (IECC)
911Wilschut, P.2072Berkvens, J.23640-135A00Open22 Jul 2000
625Genocchio Daniele...2455Berni Fabrizio (ITA)21451-013 ≣A00Tournament (weeke...28 Mar 2009
806Bertholee Arjuna277Beukema Constantijn3510-113A00Ch Netherlands (o...11 Aug 2012
386Bendig FrankBeullens Ronald1-09 ≣A00Tournament (IECG)
251Grishaev IBezukladov O D (RUS)0-112 ≣A00Memorial A.Alekhi...
127Plock Joerg1655Biebel R1-010 ≣A00corr.
549Scholz Robert (GER)1776Bielick Jacob16881-06 ≣A00It (open)29 Dec 2007
417Duriez GBilquez Romain (FRA)21301-015A00It (open)
788Hynna Kevin (FIN)1927Birgisdottir Ingi...1-07 ≣A00It (open)07 Mar 2012
324Hendriks Willy (NED)2378Blom Gerben1-014 ≣A00It (open) (juniors)
801Soto Gonzalez Ism...1800Boggiano Pereira ...0-114 ≣A00Tournament (a)09 Jul 2012
363Bauer Christian (...2562Boidman Yuri (GER)24420-114 ≣A00It (open)
204Becker AnkeBomert Isabel0-114 ≣A00Ch Hessen (junior...
240Dosza PaulBooth Stewart (AUS)21160-17A00Ch Australia
160Seiler Andreas (GER)2252Booy R1-013 ≣A00It (open)
772Ribeiro Mylena JorgeBorges Francisco ...0-17 ≣A00It (open)17 Sep 2011
638Feofanov Alexande...1788Borisov Sergey (RUS)21150-110 ≣A00Ch City (1/2 final)05 Jun 2009
28Gofman NBorrmann F1-015 ≣A00Europe Tournament...
25Roczniak JanBoryczko L1-09 ≣A00corr.
350Lim DustinBottema Timo0-112 ≣A00It (open) (junior...