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Nimzo-Indian, Sämisch Variation, Keres Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5

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
13Benko Pal C (USA)2408Dely Peter (HUN)23911-042 ≣E20Memorial Szikra
76Gheorghiu Florin ...2383Unzicker Wolfgang...24331-036 ≣E20Ch Europe (team)
21Hadjipetrov Aleks...Ivanov Pavel (RUS)20021-040 ≣E20Ch Bulgaria
26Weinstein Raymond...Denker Arnold S (...22931-041 ≣E20Ch USA
584La Manna Andrea (...2189Madiai Federico (...22161-028 ≣E20It (open) (b)21 Aug 2006
344Crouch Colin S (ENG)2395Lalic Susan (ENG)23751-036 ≣E20It (open)
712Alvarez Johan (VEN)2414Kett T (WLS)22191-041 ≣E20Olympiad25 Sep 2010
347Chowaniec WSzuszkiewicz J1-019 ≣E20corr.
216McMillanCowling TI1-045 ≣E20corr.
348Wojnar MGalkiewicz Darius...22221-028 ≣E20corr.
283JacimovicKaisarevic1-045 ≣E20corr.
219Malaniuk Vladimir...2560Tolnai Tibor (HUN)24701-030 ≣E20It
589Galyas Miklos (HUN)2428Malakhatko Vadim ...26171-032 ≣E20It (open)09 Oct 2006
300Savchenko Stanisl...2505Reeh Oliver (GER)24551-040 ≣E20It (open) \
713Hlavacek Robert (...2236Rehurek Lukas (CZE)21861-027 ≣E20Czech League 2010...17 Oct 2010
273Genov Petar (BUL)2447Nikolov Sasho (BUL)24041-039 ≣E20Ch Bulgaria
240Sakaev Konstantin...2609Emms John M (ENG)24301-037 ≣E20It
212Ballon Guenther J...2183Pritchett Craig W...23431-042 ≣E20It (open)
592La-Manna Francesc...2119Vezzosi Paolo (ITA)23111-021 ≣E20It (open)27 Oct 2006
354Krizsany Laszlo (...2395Berset Philippe (...20761-023 ≣E20It (open) (b)
125Petran Pal (HUN)2384Lengyel Levente (...24501-033 ≣E20Ch Hungary
1Euwe Max (NED)Golombek Harry (ENG)23201-038 ≣E20
161Kontulainen HannuHartonen Kari1-032 ≣E20?
789Alexanian Nelli (...2114Soyunlu Narmin (AZE)18161-027 ≣A40Ch Europe (w)13 Mar 2012
188Moskalenko Viktor...2435Vaiverman1-042 ≣E20Ch URS (qual)
231Sokolov Sergey M ...Aleksandrov Aleks...23401-039 ≣E20Ch URS (qual)
809Papaioannou Ioann...2597Aswin Jayaram (IND)24761-041 ≣E20It (open)28 Jul 2012
356Krizsany Laszlo (...2445Rittler Robert (AUT)21991-038 ≣E20Staatsliga B East...
107Hempson Peter W (...2085Gavrilovic Mikhail22001-047 ≣E20Ch Great Britain
20Szabo Laszlo (HUN)1903Teschner Rudolf (...22951-041 ≣E20Zt
150Tarjan James E (USA)2510Botterill George ...24001-038 ≣E20It
248Yurtaev Leonid (KGZ)2472Utemov Vladimir (...23851-048 ≣E20Ch URS (club)
716Jones Gawain C (ENG)2576Fedorchuk Sergey ...26711-033 ≣E20It \26 Oct 2010
820Sandhoefner Flori...2228Blasl Dietmar (AUT)20701-039 ≣E20It (open)02 Sep 2012
358Knuth Hannes (GER)2265Gerstner Wolfgang...23701-024 ≣E20Ch Germany
596Uljanova Nadezhda2021Glazunov Vladimir1-043 ≣E20Tournament (open)21 Dec 2006
361Cruz-Lopez Claret...2315Gomara J1-032 ≣E20Tournament
782Posedaru Bogdan (...2337Martian Dragos-Da...20741-040 ≣E20Ch Romania15 Feb 2012
599Milov Vadim (SUI)2680Akobian Varuzhan ...25851-037 ≣E20It (open)18 Feb 2007
718Lalic Bogdan (ENG)2456Melero Fidalgo Ju...22211-029 ≣E20It (open)10 Jan 2011
704Brokken Dennis (NED)2313Kirsanova Ekateri...21541-032 ≣E20It (open) (b)28 Jul 2010
367Kosyrev Vladimir ...2155Kostin Mikhail Y ...22331-028 ≣E20Ch Moscow (open)
739Aghasaryan Robert...2337Babujian Levon (ARM)24681-050 ≣E20Memorial Karen As...19 Jun 2011
368Computer \Computer \1-037 ≣E20It (computers)
369Computer \Computer \1-039 ≣E20Ch World (computers)
747Thybo Jan2162Buckley Graeme (ENG)23831-048 ≣E20Ch Great Britain27 Jul 2011
602Nyback Tomi (FIN)2565Veingold Aleksand...24581-036 ≣E20Ch Finland (team)...10 Mar 2007
766Posedaru Bogdan (...2342Katic Goran (SRB)20851-035 ≣E20Cup Belgrade (open)25 Nov 2011
752Teutsch Alexander1896Bellincampi Stefa...20671-030 ≣E20It (open)25 Aug 2011
332Nilssen John Arni...2378Hedman Erik (SWE)23921-041 ≣E20Ch Europe (juniors)
603Erdogan Hakan (TUR)2259Demirel Tolga (TUR)22351-048 ≣E20Ch Turkey13 Mar 2007
373Ostrowski Andrzej...2265Galkiewicz Darius...22221-046 ≣E20It (open) (a)
757Yudin Ivan (RUS)2319Draskovic Luka (MNE)21351-045 ≣E20Ch Europe (junior...14 Sep 2011
604Kirszenberg Marc ...2210Primel Dominique ...20071-040 ≣E20Ch France (team) ...
35Porreca Giorgio (...Tatai Stefano (ITA)23671-044 ≣E20Tournament
81Maslov Yevgenij (...2265Korchmar E1-041 ≣E20Ch Armed Forces (...
250Safin Shukhrat (UZB)2472Teplitsky Yan (CAN)24481-022 ≣E20Ch Uzbekistan
778Li Zuhao Luke (NZL)2165Stuart Peter (NZL)19911-020 ≣E20It (open)19 Jan 2012
605Vukovic Momcilo (...2136Pantovic Dragan M...21371-027 ≣E20It (open)02 Apr 2007
49Velimirovic Drago...2407Ankerst Marjan (SLO)22101-041 ≣A17Cup Yugoslavia
736Berkes Ferenc (HUN)2706Saric Ante (CRO)24891-039 ≣E20Ch Bosnia & Herze...05 Jun 2011
210Hubert Ralf (GER)2293Fischer Michael (...21081-022 ≣E20It (open) \
366Gallego Jimenez V...2355Del Rio Angelis S...23651-024 ≣A40Ch City
720Anand Viswanathan...2817Wang Hao (CHN)27331-033 ≣E20It (cat.20)18 Jan 2011
178Ylisela JuhaniPalenius Jarmo1-022 ≣E20Ch Finland (team)
701Ulibin Mikhail (RUS)2544Bentefrit Samir (...21991-022 ≣E20It (open)26 Jun 2010
238Arencibia Walter ...2425Franco Ocampos Ze...24951-030 ≣E20Memorial J.Capabl...
154Halldorsson Bragi...2198Thorsteinsson Bjo...22141-032 ≣E20Ch Iceland
23Portisch Lajos (HUN)2523Padevsky Nikola (...23551-049 ≣A17It
63Kottnauer Cenek (...2370Nora Georges1-027 ≣E20It
808Lokander Martin (...2271Mueller Jan-Hendr...21621-037 ≣A40It (open)27 Jul 2012
610Capo Vidal Uriel ...2356Beltran Carlos (COL)22791-042 ≣E20Ch South America19 Jul 2007
612Hejl Jaroslav (CZE)2076Vyskocil Neklan (...23081-045 ≣E20It (open)30 Jul 2007
54Moehring Guenther...2294Neukirch Detlef (...22671-033 ≣E20Ch DDR
696Muheim Sebastian ...2175Boure Hugo (FRA)19091-040 ≣E20Ch France (junior...12 Apr 2010
382Adianto Utut (INA)2605Liu Dede (INA)24051-047 ≣E20It (cat.13)
587Claassen Chris (USA)2078Schuller John1-045 ≣E20Tournament \29 Sep 2006
383Volkov Sergey Vik...2485Zangiev Pavel (RUS)22701-036 ≣E20It (open)
724Van Ketel Raoul (...2286Van Der Auweraert...1-029 ≣E20Memorial Noteboom...05 Mar 2011
385Moskalenko Viktor...2470Saulin Dmitri (RUS)23951-028 ≣E20Cup Russia (open)
725Baron Tal (ISR)2505Gerzhoy Leonid (CAN)25031-037 ≣E20It \13 Mar 2011
387Asgeirsson Heimir...2185Thorfinnsson Brag...21551-044 ≣E20It (open)
224Yakovich Yuri (RUS)2450Kharitonov Andrei...25201-024 ≣E20Tournament (swiss)
625Sieciechowicz Mar...2321Sochacki Wojtek (...22441-047 ≣E20Ch Poland (junior...02 Apr 2008
615Toth Ervin (HUN)2348Ignacz Maria (HUN)22231-046 ≣E20It (cat.1)10 Oct 2007
578Moranda Wojciech ...2462Rewasiewicz Milos...18551-012 ≣E20Tournament (juniors)13 Jul 2006
259Hurme Harri M (FIN)2258Lindberg Bengt (SWE)24141-046 ≣E20It (open)
559Romon Poves Raul ...2209Gomez Luesia Jesu...21961-040 ≣E20It (cat.4)04 Oct 2005
390Raineri Pablo (ARG)2275Oms Pallise Josep...23951-040 ≣E20It (open)
616Derichs Roger (GER)2307Kargoll Herbert (...21951-045 ≣E20Hessenliga 2007/0828 Oct 2007
619Beckett Christoph...2096Parker Robert (ENG)20921-031 ≣E20Ch England (team)...13 Jan 2008
456Bairachny Ruslan ...2442Shkliar Alexander...22461-027 ≣E20It (open) (a)
657Guerrero Alvaro (...2257Ginzburg Maximili...24551-045 ≣E20It (cat.3)18 Mar 2009
479De Santis Alessio...2267Mantovani Renzo (...23491-040 ≣E20Ch Italy
726Zivanic Marko (SRB)2479Panchanathan Mage...25861-022 ≣E20It (sheveningen) \13 Mar 2011
548Mamedyarov Shakhr...2674Huzman Alexander ...25651-041 ≣A40Ch Europe20 Jun 2005
462Grachev Boris (RUS)2410Redpath Joseph (SCO)21551-036 ≣E20Ch Europe (junior...
159Botterill George ...2360Van Der Vliet Fre...23951-022 ≣E20It \29 Aug 1981
395Shishkin Vladimir...2169Rodriguez Lopez R...23251-040 ≣E20It (b)
727Spoelman Wouter (...2563Kraemer Martin (GER)24921-029 ≣E20Bundesliga 2010/1120 Mar 2011