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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
660Sesma Rubio Patxi...2128Mascaro March Ped...23820-135 ≣E20Ch Spain (team) (...01 May 2009
771Lokander Martin (...2151Lindberg Bengt (SWE)24150-135 ≣E20Cup Rilton27 Dec 2011
623Galyas Miklos (HUN)2454Nemeth Miklos (HUN)24790-135 ≣E20Ch Hungary (team)...02 Mar 2008
326Piket Jeroen (NED)2590Korchnoi Viktor (...26250-135 ≣E20Match
532Gaule Patrick (SUI)2150Trajkovic Predrag...24320-135 ≣E20It (open)
160Welling Gerard (NED)2322Brusila1-035E20Memorial Heilimo ...
781Arvola Benjamin (...2261Mastalerz Xavier ...21351-035 ≣A40It (open) \02 Feb 2012
377Pomes Marcet Juan...2420Campos Jose Felix...22600-135 ≣E20It (open)
199Malaniuk Vladimir...2520Sokolov Andrei (FRA)26000-135 ≣E20Ch URS
498Meynard Thibault ...2242Guadalpi David (FRA)23241-035 ≣E20Ch France (team) ...
796Aleksandrov Aleks...2606Kunte Abhijit (IND)25381-035 ≣E20Cup Mayors (open)14 Jun 2012
597Adler Bo (SWE)2185Berczes David (HUN)24150-135 ≣E20Cup Rilton28 Dec 2006
544Cebalo Miso (CRO)2512Kovacevic Aleksan...25480-135 ≣E20It (open)02 May 2005
509Ulibin Mikhail (RUS)2556Barkhagen Jonas (...24610-135 ≣E20Cup Rilton
518Hillarp Persson T...2523Lehikoinen Pertti...22171-035 ≣E20It (open)07 Mar 2004
169FleckBraskin O1-035 ≣A15corr.
155Uimonen Matti (FIN)2098Haggren Stig-Olof...20090-136 ≣E20?
611Hernandez Rodney ...2100Borges Oliver (CUB)21481-036 ≣E20Tournament (b)20 Jul 2007
50Ghitescu Theodor ...2384Soos Bela (GER)22811-036 ≣E20Ch Romania
783Anfinogenov Artem...2109Kostin Konstantin...22890-136 ≣E20Ch Moscow (1/2 fi...28 Feb 2012
51Richardson Keith ...2137Wade Robert G (ENG)21480-136 ≣E20Tournament
372Etchegaray Patric...2340Jerez Perez Alfon...23550-136 ≣E20It (open) (a)
723Shatko Danil (ESP)2097Ayas Fernandez An...22860-136 ≣E20Ch Catalunia (tea...05 Mar 2011
823Pascua Haridas (PHI)2350Yu Yangyi (CHN)26510-136 ≣E20It (open)11 Oct 2012
465Pomes Marcet Juan...2399Adams Michael (ENG)27310-136 ≣E20It (open) (active) \
526Dekker Bart (NED)2158Parligras Mircea ...25590-136 ≣E20It (open)01 Aug 2004
408Hlavacek Robert (...2242Buksa J1-036 ≣E20Czech League 1997...
269Dreev Alexey (RUS)2610Anand Viswanathan...26500-136 ≣E20Ch World (match) ...
462Grachev Boris (RUS)2410Redpath Joseph (SCO)21551-036 ≣E20Ch Europe (junior...
331Hashimov RStrebkovs Andrejs...23440-136 ≣A40Ch Europe (junior...
555Grabliauskas Virg...2430Groenn Atle (NOR)23861-036 ≣E20Cup European Club...24 Sep 2005
439Volkov Sergey Vik...2554Sakaev Konstantin...26271-036 ≣E20Ch World FIDE (KO...
329Yakovich Yuri (RUS)2525Jussupow Artur (GER)26300-136 ≣E20It (active)
76Gheorghiu Florin ...2383Unzicker Wolfgang...24331-036 ≣E20Ch Europe (team)
19Mititelu Gheorghe...2300Minev Nikolay N (...23700-136 ≣E20Olympiad (student...
383Volkov Sergey Vik...2485Zangiev Pavel (RUS)22701-036 ≣E20It (open)
344Crouch Colin S (ENG)2395Lalic Susan (ENG)23751-036 ≣E20It (open)
203Hultin Per (SWE)2102Olsson Lars-Goran1-036 ≣A40Ch Sweden (corr.)
503Likavsky Tomas (SVK)2449Bayer Bernhard (GER)23001-036 ≣E20It (cat.3)
93Butnorius Algiman...2388Kaunas Kestutis (...22541-036 ≣A15?
287Wells Peter K (ENG)2497Grosar Aljosa (SLO)24151-036 ≣E20It (open)
602Nyback Tomi (FIN)2565Veingold Aleksand...24581-036 ≣E20Ch Finland (team)...10 Mar 2007
464Monacell JamesIngersol Harry1-037 ≣E20Tournament (IECG)
550Moranda Wojciech ...2451Szymanska Maria (...21591-037 ≣A40It (open)
2Landau Salo (POL)Van Scheltinga Th...23250-137 ≣E20Match
599Milov Vadim (SUI)2680Akobian Varuzhan ...25851-037 ≣E20It (open)18 Feb 2007
575Moskalenko Viktor...2543Cruz Filemon (PER)23711-037 ≣E20It (open)
579Toth Ervin (HUN)2331Banusz Tamas (HUN)24501-037 ≣E20Ch Europe (team) ...14 Jul 2006
55Aaron Manuel (IND)2315Teschner Rudolf (...22950-137 ≣E20Izt
797Aghasaryan Robert...2339Torosyan Norayr (...21371-037 ≣E20Memorial K.Asrian...23 Jun 2012
794Gardner Robert (CAN)2196Shabalov Alexande...25230-137 ≣E20It (open)18 May 2012
304Kilpi Teemu (FIN)2135Aseev Konstantin ...25600-137 ≣E20It (open)
773Steadman Michael ...2258Muller Jean (LUX)20231-037 ≣E20Ch Australia04 Jan 2012
765Shaw Peter (ENG)2180Polaczek Richard ...23770-137 ≣E20Ch England (team)...13 Nov 2011
759Colas Joshua (USA)2025Harmon Luke (USA)22040-137 ≣E20Ch Continental Class08 Oct 2011
195Schreiber Hans (GER)1981Reinhardt W (GER)1-037 ≣E20Europe Tournament...
362Malaniuk Vladimir...2580Naumkin Igor (RUS)24551-037 ≣A40It (open)
529Erdogan Hakan (TUR)2220Baramidze David (...25430-137 ≣E20Cup European Club03 Oct 2004
743Cebalo Miso (CRO)2478Carron Julien (SUI)23740-137 ≣A17Ch Switzerland (o...13 Jul 2011
301Gutman Lev (GER)2465Fahnenschmidt Ger...20260-137 ≣A15Bundesliga 1991/92
606Cruz Lledo Pablo ...1945Uribe Arteaga Dan...22600-137 ≣E20It (cat.1)12 Apr 2007
368Computer \Computer \1-037 ≣E20It (computers)
725Baron Tal (ISR)2505Gerzhoy Leonid (CAN)25031-037 ≣E20It \13 Mar 2011
705Morozevich Alexan...2700Fedorchuk Sergey ...26710-137 ≣E20It (cat.16)
123GretskinEstrin Yakov B (RUS)24500-137 ≣E20corr.
821Smirnov Alexey (RUS)2419Severina Maria (RUS)21731-037 ≣E20Cup R.Nezhmetdino...29 Sep 2012
808Lokander Martin (...2271Mueller Jan-Hendr...21621-037 ≣A40It (open)27 Jul 2012
438Pomes Marcet Juan...2388Campora Daniel H ...25261-037 ≣E20It (open)
423Cafolla Peter (IRL)2108Daly Colm (FID)23780-137 ≣E20Ch Ireland
678Palliser Richard ...2413Pritchett Craig W...23031-037 ≣E20It (active) \21 Nov 2009
644Komljenovic Davor...2428Pinter Jozsef (HUN)25360-137 ≣E20Ch Croatia (team)...30 Sep 2008
70Moehring Guenther...2294Liebert Heinz (GER)22470-137 ≣E20Ch DDR
65Tay Cheong AnnBerger Bela (HUN)0-137 ≣E20Zt
174Flum GHesse Gunter1-037 ≣E20Cup Baltic (corr.)
59Wade Robert G (ENG)2148Ortega Lexy (ITA)24750-137 ≣E20Olympiad
240Sakaev Konstantin...2609Emms John M (ENG)24301-037 ≣E20It
819Toth Ervin (HUN)2477Battey Alexander ...23961-037 ≣E20It (cat.8)01 Sep 2012
472Ulibin Mikhail (RUS)2581Pikula Dejan (SRB)24841-037 ≣E20It (open)
543Ballon Guenther J...2212Solleveld Maarten...24630-137 ≣E20It (open)29 Apr 2005
37Purdy Cecil J S (...Sarapu Ortvin (NZL)22551-037 ≣E20Ch Australia15 Oct 1960
33Marini LuisOlafsson Fridrik ...24340-137 ≣A17It
520Nedberg Benjamin ...2113Brasoy Aksel (NOR)19841-037 ≣E20Ch Norway (open)09 Apr 2004
525Ulibin Mikhail (RUS)2556Cherniaev Alexand...22650-137 ≣E20It (open)21 Jul 2004
268Wells Peter K (ENG)2460Suba Mihai (ROM)25400-137 ≣E20It (cat.11)
763Volkov Sergey Vik...2614Stockmann Michael...22841-038 ≣E20It (open)
813Timofeev Artyom (...2641Nukin Ashat (KAZ)23471-038 ≣E20Memorial Izmailov...11 Aug 2012
643Abergel Thal (FRA)2509Sulskis Sarunas (...25720-138 ≣E20Ch European Union17 Sep 2008
505Marinangeli Marti...2139Arambel Sergio (ARG)22961-038 ≣E20Ch City (match)
452Adler Bo (SWE)2245Couso Luis (SWE)23270-138 ≣E20Ch Sweden (team) ...
653Solomin Maxim (RUS)1958Aksenov Anton1-038 ≣E20Ch City (1 league)14 Feb 2009
324Shirov Alexei (ESP)2685Karpov Anatoly (RUS)27600-138 ≣E20It (blitz)
681Zorko Jure (SLO)2402Grosar Aljosa (SLO)24161-038 ≣E20Ch Slovenia (team)12 Dec 2009
497Carleton John J (...2284Walsh Chris (WLS)21581-038 ≣E20Ch England (team)...
515Donnoli Giorgio1485Tamburini Lorenzo...20860-138 ≣E20It (open)05 Sep 2003
769Danielian Elina (...2497Hou Yifan (CHN)25780-138 ≣A40Ch World (team) (w)20 Dec 2011
572De Val Daniele (ITA)2182Malloni Marcello ...22780-138 ≣E20Ch Italy (team)22 Apr 2006
512Ezat Mohamed (EGY)2383Soppe Guillermo (...24330-138 ≣E20Dos Hermanas Qual...18 Mar 2003
1Euwe Max (NED)Golombek Harry (ENG)23201-038 ≣E20
633Wiedermann Daniel...2161Genser Harald (AUT)23151-038 ≣E20Ch Austria19 Jul 2008
31Polugaevsky Lev A...2585Teschner Rudolf (...22951-038 ≣E20Match \