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Nimzo-Indian, Sämisch Variation, 4.a3 Bxc3+ 5.bxc3 c5 6.e3 Notation: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3

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
646Dufeal Julien (FRA)2141Grooten Herman (NED)24080-110 ≣E20It (open)
128Napolitano Mario ...Batik Frantisek0-112 ≣E41?
803Li Ruofan (SIN)2426Vasilevich Tatjan...23680-112 ≣E41World Mindsports ...08 Oct 2008
84Keres Paul (EST)2580Mikkov U1-012 ≣E41Ch Estonia (open)
1Rellstab Ludwig S...2265Pahl Kurt1-012 ≣E41
860Swiech Przemyslaw...1448Bartoszek Marcin ...18011-013 ≣E41Ch Poland (team) ...08 Jul 2010
893Dupre Paul Donald...2037Arkell Keith C (ENG)24090-114 ≣E41It (open)27 May 2011
508Wilke MarkusSchaaf Rene (GER)21860-114 ≣A40Ch Hessen (junior...
16Lilienthal Andor ...2385Kottnauer Cenek (...23701-015 ≣E41Match \
305Lopez Pereyra Ant...2148Velasco Gutierrez...20641-015 ≣A17Match (active)
620Viniarski Alex (AUS)Oliver Gareth (AUS)21640-115 ≣E20Ch Australia (jun...
568Strohmer HaraldDietrich Werner1-015 ≣E41It (open) (b)
339Kekki Petri (FIN)2335Welin Thomas (SWE)23750-116 ≣E41It (open)
175Behr Maxmilian (GER)2070Suess W21051-016 ≣E20Europe Tournament...
187Kasanen JuhaSoom1-017 ≣E20Olympiad (student...
877Coy William (COL)1903Tapia Daniel (COL)22801-017 ≣E20Tournament (open)05 Feb 2011
112Szapiro GSolecki Zbigniew1-018 ≣E20Ch Poland
37Spanjaard EduardVan Den Berg Care...24100-118 ≣E20Ch Netherlands
68Pafnutieff VladimirGligoric Svetozar...24470-118 ≣E20It
464Bernardino LOliveira Vera (POR)17151-018 ≣E41Ch Coimbra (team)
733Alonso Rosell Alv...2231Rodriguez Lorenzo...19361-018 ≣E20Ch Spain (schools)27 Jun 2006
237Venalainen Unto E...2350Day Lawrence A (CAN)23301-019 ≣E20?
293Schuster GuenterWeiler Wolfgang (...21191-019 ≣E20Ch Baden (HT)
537Maksimovic Suzana...2300Lazic Marina (YUG)22201-019 ≣E20Ch Yugoslavia (te...
236Kornath Heinrich ...1901Teichgraber G1-019 ≣E20Europe Tournament...
410Markotic Gordan (...2287Kolev Atanas (BUL)25910-119 ≣E41It (open)
475Salman Joel (USA)2225Goregliad Sergei ...23201-019 ≣E20It
693Santos Marcus Vin...2334Frenklakh Valery ...22961-019 ≣E41It20 Jun 2004
172Engerer HansZeitler Hans-Juer...19621-019 ≣E20It (open)
839Altomonte Giuseppe1773Fiorentino Vincenzo15091-019 ≣E20It (open) (b)05 Jan 2010
232Kretschmar HeinzNordstrom Felix (...21811-019 ≣A40corr.
477Kojetsky Pavel (CZE)2114Vasek Dalibor (CZE)1-019 ≣E20Ch Moravia (open)
625Mensch Etienne (FRA)2299Somogyi Istvan (HUN)22541-019 ≣E20It (cat.2)
571Andrade Romo Anib...2034Bastidas Rodrigue...22450-119 ≣E41Tournament \18 Sep 1998
736Yermishin Viktor ...2410Lao Lenath (FRA)19561-019 ≣E20Memorial Georgiev...05 Sep 2006
597Moskalenko Viktor...2471Campos Moreno Jav...24840-120 ≣E41It (open)
355Vogel UlrichOlbrisch Manfred ...20630-120 ≣A17It (open) \
62Huguet HGaribaldi Oscar (...1-020 ≣E20Ch Argentina
238Brilla Banfalvi S...Bjorkqvist Armas1-020 ≣E20corr.
374Hirsch RobertAnderton David W ...22210-120 ≣E20corr.
452LibertNilsson Nils S (DEN)22600-120E20Memorial I.Bolesl...
808Slyusarenko YuGevak A0-120 ≣E41Ch City (open)
652Radice Luca (ITA)2077Provera Emanuele ...21440-120 ≣E20Ch Italy (team)
522Jetzl Joerg (AUT)2203Lopushnoy Denis (...23850-120 ≣E41It (cat.3)
17Najdorf Miguel (POL)2445Rohacek Vladimir ...1-020 ≣E41Memorial K.Treybal
271Sherwood CharlesCasey Kevin (AUS)20700-120 ≣E20It (open) \
685Le Roux Jean-Pier...2460Bagheri Amir (FRA)24961-020 ≣E41It (cat.11)16 Feb 2004
663Rattray Gordon2055McKay Roderick M ...23710-121 ≣E41Ch West Scotland26 May 2002
862Musialkiewicz Jan...2104Borawski Jakub (POL)18670-121 ≣E41Ch Poland (team) ...10 Jul 2010
338Wohlers-Armas Fri...2050Borisova Borislav...20891-021 ≣E20?
694De Barros Frederi...2073Schmouchkovitch C...19621-021 ≣E41It (open)14 Jul 2004
248Bonilla JoseTikkanen Kari (FIN)22600-121 ≣A17Ch World (juniors...
753Vishnyakov Igor (...2182Konyukhov Mikhail...18521-021 ≣E41Memorial Polyak17 Jan 2007
89Kelly TAnderson Frank R ...0-122 ≣E20Olympiad
213Epelman E GProkopp Heinz1-022 ≣E20Europe Tournament...
576Sipka Zoltan (HUN)1908Vereb Andras (HUN)20860-122 ≣E20It (open)
233Strinitz HPfeiffer Herbert ...22751-022 ≣A40corr.
197Litkiewicz Kurt (...2240Maton A1-022 ≣E20Europe Tournament...
244Kaltofen HSchwanfelder Martin1-022 ≣E20corr.
874Jansen Lauritz (GER)1790Grigorian Spartak...18351-022 ≣E41Ch Germany (junio...29 Dec 2010
181Piket Joop J (NED)2125Agnes Corrado1-022 ≣E20Ch World (team) (...29 Jul 1964
291Sahu Sekhar Chand...2320Blocker Calvin (USA)23781-022 ≣A13It
822Ryklis BorisKolmakov Pavel (RUS)22680-122 ≣E41It (open) \19 Jun 2009
34Rossolimo Nichola...2450Golombek Harry (ENG)23201-022 ≣E41It
823Selnes Hamish (AUS)1912Milligan Helen (NZL)19761-022 ≣E20Zt24 Jun 2009
569Gomez Ruben (ARG)1893Lichtentein Juan1-022 ≣E20It (open)
658Moskalenko Viktor...2510Flores Enrique1-022 ≣E20It (open)
398Tihonov Jurij (BLR)2448Tzoumbas Anastasi...23411-023 ≣E20Ch World (juniors...
480Ilham Abd Hamid (...Ooi Chern Ee (MAS)22200-123 ≣E20Ch Asia (team)
833Barlotti Gabriele...1667Bonade Massimo (ITA)21270-123 ≣E20It (open)18 Oct 2009
104Sherbakov2415Levit Roman (USA)22751-023 ≣E41Ch URS (1/2 final)
777Rozhkov DDanchinov Viktor ...22150-123 ≣E20Ch City
792Johansson Alexand...2022Blomqvist Erik (SWE)24180-123 ≣E20Ch Sweden (juniors)11 Jul 2008
55Esposito AlfredoSouza Mendes Joao1-023 ≣E20Zt
605Olsson Simon (SWE)2130Nordstrom K1-023 ≣E20It (open)
498Garneli EvageliaKalesis Nikolaos ...23900-123 ≣E20It (open)
234Vehreschild HScheffer G1-023 ≣E20corr.
501Karsa Laszlo (HUN)2395Kustar Sandor (HUN)23951-023 ≣E41Ch Hungary (team)...
247Fodor Istvan (HUN)1988Lepsenyi Lorant (...20550-123 ≣E20Tournament \
160Trapl Jindrich (CZE)2336Tolush Alexander ...1-024 ≣E20Ch Europe (team)
554Ghozali CholidChan James (CAN)20121-024 ≣E20Ch Asian Cities (...
153Ben Hassan ALund Per (DEN)20150-124 ≣E41Olympiad (student...
920Feliciano Vanessa...2194Da Cruz Karoliny ...17991-024 ≣E41Ch Brazil (w)22 Mar 2012
64Wise TNewman RH18151-024 ≣E20Ch Great Britain
490Buettner Ulrich (...1969Weclawski Doris (...21050-124 ≣E20It (w)
323Peterman RRohde Michael A (...25500-124 ≣E41It (open)
644Farrell RogerPetersons Haralds1-024 ≣E41Ch ACT
784Vrajitoru Vlad-La...653Tiron Lucian-Ilie5510-124 ≣E41Ch Romania (juniors)14 Apr 2008
369Santos Carlos P (...2404Walsh Chris (WLS)21580-124 ≣E20Ch World (juniors...
513Dreyer Martin (NZL)2310Tissir Mohamed (MAR)24540-124 ≣E41Olympiad
572Bank Friis Carste...2269Vovk Oksana (DEN)20751-024 ≣E41Ch Denmark (cand.)
254Siff Boris2230Peters John A (USA)23700-124 ≣E20?
684Eriksson Johan (SWE)2423Lappalainen Tommy...21881-024 ≣E41Cup Rilton
560Durao Pedro (POR)2138Damaso Rui (POR)24300-124 ≣E20It (young masters)
589Karner Christoph ...2181Medvegy Zoltan (HUN)23970-125 ≣E20Ch Europe (junior...
671Sailer Mike (USA)2136Dimitrijevic Dark...22211-025 ≣E41It (open)
218Cafure EmilioCruz Raul0-125 ≣E20It (open)
156Trapl Jindrich (CZE)2336Marsalek Josef (CZE)20711-025 ≣E20Ch Czechoslovakia
149Vladimirov Boris ...2340Shamkovich Leonid...23420-125 ≣E20Ch URS
212Szabo Laszlo (HUN)1903Najdorf Miguel (POL)24450-125 ≣E41It