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Nimzo-Indian, Sämisch Variation, Main line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 0-0 6. e3 c5 7. Bd3 Nc6

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
47Szabo Laszlo (HUN)1903Portisch Lajos (HUN)25230-141 ≣E41Ch Hungary (match)
6Ivanov Pavel (RUS)2002Piskov Kamen0-129 ≣E41Ch Bulgaria
278Amico Rosario (ITA)2007Colabrese Cary (ITA)15841-038E41It (open) (b)27 Aug 2000
224Meister Thomas2010Kordts Wolfgang (...22360-136 ≣E41Bayern Regionalli...
239Punteri Marco (ITA)2049Sale Srdjan (CRO)24250-141 ≣E41It (open)
280Picazo Lopez Juan...2055Garcia Carbo Marc...23540-140 ≣E41Ch Spain (open)
268Pyka Andreas (GER)2065Morsch Andreas17161-033 ≣E41It (open)
285Carrabeo Garcia M...2072Campora Daniel H ...25360-140 ≣E41It (open)
432Mirzoev Emil (UKR)2109Benidze Gigla (GEO)19180-140 ≣E41Ch Europe (junior...22 Sep 2010
204Beaton Kenneth S ...2116Duthie Gordon1-046E41Ch Scotland (team)
308Chouquet Adrien (...2132Shchekachev Andre...25460-128 ≣E41It (open)
80Aijala Jouko (FIN)2133Damiron Dickson A1-025 ≣E41Ch World (team) (...04 Aug 1969
97Clarke Thomas (IRL)2137Keeshan Michael1-023 ≣E41It (open)
352Rink Christian (GER)2140Weigel Robert Dr ...22330-149 ≣E41Bayern Landesliga...19 Feb 2006
174Kluss Kai (GER)2150Lesiege Alexandre...23750-135 ≣E41Ch France (team)
232Metge J Nigel (NZL)2160Sutherland John (...20551-029 ≣E41Ch New Zealand
273Brunner Nicolas (...2170Roser Kevin (FRA)23190-141 ≣E41It (open)
454Nadimifar Adnan2172Rezaei Kheirabadi...20711-031 ≣E41Cup Armen Norouz28 Mar 2012
446Feliciano Vanessa...2173Guimaraes Artemis...20160-136E41Tournament \
83Yepez Trotzky (ECU)2180Moraza Manuel (PUR)21870-143 ≣E41Ch Pan-American
272Banerjee Sushant ...2181Radha S R (IND)20341-020 ≣E41Ch Commonwealth
203Mazzei Alessandro...2190Sardo A1-043E41Ch Italy (juniors)
300Adams Nick A (USA)2197Shapiro Daniel E ...22891-021 ≣E41It (open) \
149Spycher Bernard2200Klauser Markus (SUI)23710-124 ≣E41Memorial Hans Klee
23Raizman Maurice2200De Greif Boris (COL)22551-032 ≣E41Olympiad
173Doering Thomas (GER)2205Komarov Dimitri (...24550-129 ≣E41It (open)
159Zbikowski Wolfgan...2205Alexandria Nana (...23421-036 ≣E41Izt (w)
422Lykov Sergey (RUS)2206Sakharov Lev (RUS)21461-050 ≣E41Ch Udmurtia18 Dec 2009
153Gast Jonathan (SUI)2209Kosiol0-148 ≣E41corr.
433Foisor Mihaela-Ve...2210Ivekovic Tihana (...18741-031 ≣E41Ch Europe (junior...22 Sep 2010
319Adams Nick A (USA)2212Demaria Juan Pabl...22601-031E41Dos Hermanas Qual...14 Mar 2003
257Salimaki Janne (FIN)2215Haapasalo Jukka-P...22450-135E41Ch Helsinki
256Winiwarter Felix ...2225Dorawa Bernhard (...19821-040 ≣E41Ch World (seniors)
169Walton Jonathan S...2225Kiss Attila (HUN)23581-038 ≣E41It (open)
209Oei Hway Ik (NED)2235Van Den Doel Erik...23050-140 ≣E41It (open)
237Zaiatz Elena (RUS)2240Stubenrauch Steve...21051-028 ≣E41It (open)
128Dickenson Neil F ...2245Karolyi Tibor Jr ...24350-130 ≣E41It \
357Dean Jim H (USA)2251Kjartansson Gudmu...22460-129 ≣E41It (cat.2)10 Jul 2006
45Popov Vladilen (BUL)2260Filipov F (BUL)1-045 ≣E41Ch Bulgaria
289Jugow Alexander (...2266Biller Helmut Dr ...21891-033 ≣E41Ch Hessen (seniors)
233Menacher Manfred ...2270Loew Gerald (GER)22701-030 ≣E41Ch Bayern
212Levit Roman (USA)2275Miller Ike S (USA)20611-030 ≣E41Ch USA (open)
191Levit Roman (USA)2275Lubojanski S1-024 ≣E41Ch Amateur Team
64Pachman Ludek (GER)2278Porath Yosef (ISR)23401-022 ≣E41Olympiad
438Olivares Francisc...2283Gongora Liuber (CUB)22880-136 ≣E41Tournament (Elo)07 Nov 2010
101Pliester Leon (NED)2300Taulbut Shaun M (...23760-138 ≣E41It (open)
205Lisko Frantisek (...2311Lipka Juraj (SVK)23751-043 ≣E41Slovak League 199...
116Muir Andrew J (SCO)2311Motwani Paul (SCO)24940-125 ≣E41Ch Scotland
172Kadimova Ilaha (AZE)2314Prudnikova Svetla...23491-029 ≣E41Ch Europe (team)
217Estremera Panos S...2320Garcia Carbo Marc...23150-123 ≣E41It (open)
196Soman Satchidanan...2320Ravi Thandalam Sh...23850-150 ≣E41Ch India
16Mueller Klaus-Uwe...2320Schlieder Rolf1-039 ≣E41Ch DDR
120Ker Anthony F (NZL)2344Hellers Ferdinand...24400-129 ≣E41Ch World (juniors...
331Ilic Dragan (SRB)2346Podlesnik Bogdan ...23630-125 ≣E41Ch SCG (team) (2 ...16 Sep 2004
240Lomineishvili Mai...2350Yakovich Yuri (RUS)26100-128 ≣E41Cup Russia (open)
343Santos Marcus Vin...2353Lopez Gonzalez Da...22451-041 ≣E41It (cat.3)09 Jul 2005
213Vigh Bela (HUN)2355Palkovi Jozsef (HUN)24700-125 ≣E41Ch Hungary (team)...
344Littlewood Paul E...2366Bonafont Philip (...21011-038 ≣E41Ch Great Britain01 Aug 2005
260Eriksson Johan (SWE)2373Yakovich Yuri (RUS)25920-131 ≣E41Cup Rilton
320Chiong Luis (PHI)2381Zarnicki Pablo (ARG)25230-128 ≣E41Dos Hermanas Qual...16 Mar 2003
356Li Ruofan (SIN)2391Kuang Yinghui (CHN)23031-033 ≣E41Ch China (w)04 Jul 2006
48Cherepkov Alexand...2395Korchnoi Viktor (...25560-130 ≣E41Ch URS
294Norri Joose (FIN)2403Agopov Mikael (FIN)23761-028 ≣E41Ch Finland
194Lyrberg Patrik (SWE)2405Kindermann Stefan...25190-132 ≣E41It
189Haimovich Tal (ISR)2408Birnboim Nathan (...23691-027 ≣E41It (b)
41Ciocaltea Viktor ...2420Geller Efim P (RUS)24550-129 ≣E41Memorial Przepiorka
230Karttunen Mika (FIN)2423Heinimaki Leo (FIN)20721-040 ≣E41It (open)
95Ivanov Igor V (CAN)2424Jussupow Artur (GER)24500-150 ≣E41Ch URS (1 liga)
198Ivanov Igor V (CAN)2424Browne Walter S (...25351-020 ≣E41It \
215Guseinov Aidyn (AZE)2425Tunik Gennady (RUS)25150-141 ≣E41It (open) \
207Zaiatz Elena (RUS)2441Kayumov Dmitry D ...24411-038 ≣E41Memorial A.Zaitsev
449Urkedal Frode (NOR)2448Ochsner Bjorn Mol...22581-043 ≣E41Ch Europe (junior...13 Sep 2011
114Cvitan Ognjen (CRO)2450Gruenberg Hans-Ul...24701-040 ≣E41It (cat.9)
341Sharavdorj Dashze...2453Rensch Daniel (USA)23611-027 ≣E41It \12 Jun 2005
305Nguyen Huynh Minh...2456Tran Minh Tung1-028 ≣E41Ch Vietnam (junio...27 Jul 2002
183Tisdall Jonathan ...2465Lyrberg Patrik (SWE)24200-132 ≣E41It (open)
398Ipatov Alexander ...2472Matuszewski Micha...22661-035 ≣E41It (open)25 Jun 2008
137Shereshevski Mikh...2475Piesina Gintautas...23901-047 ≣E41Ch URS (1/2 final)
219Agrest Evgenij (SWE)2475Astrom Goran (SWE)22901-040 ≣E41Ch Sweden (open)
384Krush Irina (USA)2475Smith Bryan G (USA)23920-136 ≣E41US Chess League24 Oct 2007
185Richter Michael (...2484Stevanovic Igor (...21800-130 ≣E41Ch Germany (junio...
414Gonda Laszlo (HUN)2499De Vreugt Dennis ...24300-128 ≣E41Bundesliga 2008/0901 Feb 2009
115Balashov Yuri S (...2510Novikov Igor A (USA)24651-042 ≣E41?
283Halkias Stelios (...2519Khetsuriani Besar...24111-033 ≣E41It (open)
316Cebalo Miso (CRO)2520Iotti Pierluigi (...22911-033 ≣E41It (cat.8)
425Ipatov Alexander ...2521Drenchev Petar (BUL)25080-132 ≣E41Memorial Asenova-...23 Apr 2010
214Aleksandrov Aleks...2525Dragomarezkij Evg...24751-047 ≣E41It (open)
138Vaisser Anatoly (...2530Timoshenko Georgy...25151-030 ≣E41?
363Neverov Valeriy (...2538Collier David (ENG)21751-030 ≣E41It (open)23 Sep 2006
139Balashov Yuri S (...2540Karpman Vadim (UKR)24901-036 ≣E41Ch URS (qual)
105Balashov Yuri S (...2545Gavrikov Viktor (...24851-026 ≣E41Ch URS (1 liga)
44Polugaevsky Lev A...2585Furman Semyen A (...0-122 ≣E41Tournament
210Gurevich Mikhail ...2585Jackelen Thomas (...24051-033 ≣E41It (2)
361Kaidanov Gregory ...2595Harmon Clark (USA)21871-034 ≣E41It \08 Aug 2006
188Agrest Evgenij (SWE)2599Kiselev Sergey (RUS)24700-127 ≣E41It (a)
106Timman Jan H (NED)2605Polugaevsky Lev A...26200-122 ≣E41It (cat.15)
8Botvinnik Mikhail...2630Reshevsky Samuel ...24300-142 ≣E41Ch World (match-t...
186Jussupow Artur (GER)2630Karpov Anatoly (RUS)27600-140 ≣E41It
246Jussupow Artur (GER)2640Cvitan Ognjen (CRO)25251-048 ≣E41Zt
261Hupp FabricioDa Silva Eduardo ...0-131 ≣E41It \