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Nimzo-Indian, 4.e3, Main line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nf3 d5 6. Bd3 c5 7. 0-0 Nc6 8. a3 Bxc3+ 9. bxc3 dxc4

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
356JerabekKubis0-135 ≣E47Ch Czechoslovakia...
536Johannessen Leif ...2527Moussa Alaa-Eddin...22121-045 ≣E47Olympiad
555Johannessen Leif ...2527Moen Andreas (NOR)22650-134 ≣A15It (cat.6)
542Johannessen Leif ...2527Jenni Florian (SUI)25161-029 ≣A15Bundesliga 2002/03
91Johannsson Ingi R...2410Safvat Y1-038 ≣A15Olympiad
90Johannsson Ingi R...2410Anderson Frank R ...0-127 ≣A17Olympiad
368Jolowicz Matias D...2243Wronn Bernd (GER)21920-124 ≣E47Regionalliga Nort...
39Jorgensen Vagn RauheSpassky Boris V (...25480-133 ≣E41Ch World (juniors...
580Jovic Stevan (SRB)2080Ilincic Zlatko (SRB)25220-125 ≣E47Ch Vojvodina (team)26 Sep 2004
477Juhnke Karl (GER)2290Wronn Bernd (GER)21921-048 ≣E47Oberliga Northwes...
245Juhnke Karl (GER)2178Ruehrig Volkhard ...0-137 ≣E47Ch Germany (team)...
530Jussupow Artur (GER)2633Solomunovic Igor ...24211-037 ≣E47It (open)
419Jussupow Artur (GER)2655Beliavsky Alexand...26400-139 ≣E47It
234Just Joachim (GER)2047Potthammel Joerg ...21300-140 ≣A17Ch DDR (corr.)
249Kaarlonen KaarloMettinen Timo1-031 ≣E47?
281KahlGuenther1-045 ≣E47corr.
303Kahn Manfred (GER)2139Staller Peter (GER)22441-043 ≣A40It
570Kaidanov Gregory ...2611Lerner Konstantin...25041-039 ≣E47It (open) \
734Kamel Salama (EGY)2037Elhares Alaa17411-029 ≣E47Tournament (Elo) \15 Oct 2011
640Kanakaris G (GRE)2236Bakos Balazs (HUN)24010-133 ≣E47Ch World (juniors...28 Nov 2007
508Kantsler Boris (ISR)2524Gershon Alik (ISR)25021-030 ≣E47Ch Israel (team)
697Kapnisis Spyridon...2511Pavlidou Ekaterin...21911-041 ≣E47Cup Artemis (open)14 Jul 2010
467Karayannis Athana...2245Nikolaidis Ioanni...25200-143 ≣E41It (open)
196Karjarinta TapaniNurmi Toivo0-128 ≣E41?
442Karp Serge (LUX)2095Pytel Krzysztof (...24250-122 ≣E10It (open)
634Kashlinskaya Alin...2263Ogleznev Alexandr...22621-041 ≣E47It \22 Jul 2007
690Kashlinskaya Alin...2358Girya Olga (RUS)24141-050 ≣E41Ch Russia (junior...18 Apr 2010
182Kausek KBubenik J1-037 ≣E47?
297Kausek KZlebcik L1-037 ≣E41Ch Czechoslovakia...
494Kay JBStracy D (NZL)1-033 ≣E41Ch North Island (b)
263Keene Raymond D (...2455Romanishin Oleg M...25600-140 ≣E41?
522Kekki Petri (FIN)2300Sorsa Nuutti (FIN)22771-046 ≣E47Ch Finland
282Kell KlausSelke Horst1-024 ≣A40corr.
248KeneszDuenhaupt HW (GER)1-040 ≣E41Ch Europe (team) ...
209Ketzscher Roland ...2085Jordan Garcia Jos...1-032 ≣E47corr.
751Kharitonov Alexan...2547Biriukov Nikolai ...24201-032 ≣E47It (open)18 Jun 2012
471Khasin Abram (RUS)2420Leonidov Vitaly (...23650-142 ≣E41It (seniors)
551Khurtsidze Nino (...2433Balashov Yuri S (...25211-033 ≣A40It (open) \
390Kjeldsen Jens (DEN)2365Tolnai Tibor (HUN)24950-131 ≣E47It (open)
179Klompus GrigoryRoskov V1-037 ≣E47corr.
15Kluger Gyula (HUN)2250Florian Tibor (HUN)1-038 ≣E41Ch Hungary
83Kluger Gyula (HUN)2250Ivkov Borislav (SRB)24160-130 ≣E47Match \
216Knaak Rainer (GER)2515Garcia Gonzales G...24501-042 ≣E41Memorial J.Capabl...
238Knaak Rainer (GER)2520Timoscenko Gennad...24830-134 ≣E47?
425Knaak Rainer (GER)2540Korchnoi Viktor (...26351-023 ≣E47Cup Hofmann
286Knaak Rainer (GER)2505Tischbierek Raj (...24541-042 ≣E41It
288Knaak Rainer (GER)2490Prandstetter Edua...24401-027 ≣E47Ch Czechoslovakia...
325Knaak Rainer (GER)2505Horvath Jozsef M ...21041-030 ≣E47It (cat.12)
324Knaak Rainer (GER)2505Georgiev Kiril (MKD)25351-038 ≣E47Match \
458Kock Hans-Uwe (LIE)2235Kiesslich W1-029E10It (open)
499Kodentsov Grisja ...2275Werle Jan (NED)22161-040 ≣E20Ch Netherlands (j...
636Koelbl Wolfgang (...1912Schulte Torsten (...22310-130 ≣E47It (open)02 Aug 2007
172Kolarov Atanas S ...2415Sapunov Lilko1-028 ≣E41Ch Bulgaria01 Mar 1966
413Komljenovic Luka ...2228Niedermaier Hans ...22690-140 ≣E47Bundesliga (2nd) ...
661Korobov Anton (UKR)2605Wang Hao (CHN)26960-135 ≣E47World Mindsports ...04 Oct 2008
749Korobov Anton (UKR)2679Swiercz Dariusz (...25651-045 ≣E47Match \29 May 2012
584Korotylev Alexey ...2604Negi Parimarjan (...23521-039 ≣E47It (cat.7)23 Jan 2005
510Korotylev Alexey ...2528Paramonov Dimitri...23321-032 ≣E47Memorial M.Chigor...
231Koski PekkaRantanen Veikko1-023 ≣E41?
242Koski PekkaHeikkinen Jyrki0-125 ≣E47?
472Kostin Sergei (RUS)2290Tunik Gennady (RUS)24500-147 ≣E41Cup Russia (open)
721Kostov Galin (BUL)2197Pantev Veselin (BUL)23730-145 ≣E47Ch Bulgaria (team...05 Jun 2011
13Kotov Alexander A...2500Matanovic Aleksan...24901-041 ≣E41Izt
435Kovacic Peter (SLO)2173Dizdar Goran (CRO)25350-150 ≣E47It (open)
495Kovacs Istvan (HUN)2236Somogyi Istvan (HUN)22381-050 ≣E21Ch Hungary (team)...
731Kovalenko Igor (UKR)2567Voronov Yuri (UKR)22811-025 ≣E47It (open)04 Sep 2011
658Kovalenko Igor (UKR)2453Kurukin Dmitry (RUS)21861-036 ≣E47It (open)12 Aug 2008
724Kovalenko Igor (UKR)2578Zubarev Alexander...26081-031 ≣E47Memorial A.Ermak ...01 Jul 2011
672Kozakov Mikhail (...2437Ganin Maksim (UKR)24271-040 ≣E41It \17 Apr 2009
635Kozakov Mikhail (...2449Rybak Tomasz (POL)22821-041 ≣E47Tournament (open)28 Jul 2007
695Kozenkov Valery (...2132Rutman Aleksandr ...21441-027 ≣E40It (open) \24 Jun 2010
629Kozhuharov Spas (...2463Daurelle Herve (FRA)22631-030 ≣E41It (open)17 Apr 2007
226Kozlovskaya Valen...2281Gaprindashvili No...24250-142 ≣E47Olympiad URS
49Kozma Julius (CSR)2380Vesely Jaromir (CZE)19791-042 ≣E21Ch Czechoslovakia
53Kozma Julius (CSR)2380Lax Hendrich1-029 ≣E41Ch Czechoslovakia...
148Kozma Julius (CSR)2380Damjanovic Mato (...23031-038 ≣E47It
350Kozma Julius (CSR)2380Beran Josef (CZE)22700-146 ≣E47Ch Czechoslovakia...
534Kramnik Vladimir ...2809Tiviakov Sergei (...25991-038 ≣E47It (cat.19)
147Krutiansky Anatoly AZhdanov Igor0-127 ≣E41Ch Latvia
659Kuchynka Lubos (CZE)2050Smith David J (IRL)18281-038 ≣E47It (open)24 Aug 2008
308Kulbacki JamesHosey L1-028 ≣E47It (open)
301KummerStache1-047 ≣E47corr.
506Kunz Konstantin (...2186Luther Thomas (GER)25470-146 ≣E47It (open)
241Kuuskmaa EndelSarosi Zoltan (HUN)22970-144 ≣E47Olympiad (corr.)
483Kveinys Aloyzas (...2545Nikcevic Nebojsa ...24801-035 ≣A13It (open)
600Laasanen Teemu (FIN)2140Saastamoinen Aarn...21650-147 ≣E47Ch Finland (team)...10 Sep 2005
520Labat Antoine (FRA)2024Dourerassou Jonat...21030-142 ≣E11Ch France (team) ...
696Lahiri Atanu (IND)2341Savic Miodrag R (...25030-143 ≣E41It (open)12 Jul 2010
332Lalic Bogdan (ENG)2485Ortega Lexy (ITA)24401-040 ≣E47It (cat.11)
142Lampela OlaviEkblom PE (FIN)1-035 ≣A40?
159Lapienis Donatas ...2282Rusakov Jury (RUS)22470-124 ≣E41Ch Lithuania
118Lazarev Efim M (UKR)2428Kurass Iskir (UKR)23401-048 ≣E21Ch Ukraine (1/2 f...
403Lengyel Ferenc (HUN)2280Kladiva Imre (HUN)20141-026 ≣E41It (open)
141Lengyel Levente (...2293Somogyi Istvan (HUN)22051-041 ≣E47Ch Hungary
250Lerner Konstantin...2515Zaichik Gennadi (...24571-041 ≣E41Memorial V.Karsel...
336Leserer HKaiser0-124 ≣A15Ch BRD (corr.)
416Lesiege Alexandre...2460Baragar Fletcher ...22851-047 ≣E47Ch Canada
111Letelier Rene (CHI)2151Redolfi1-049 ≣E41?
295Letic Stevan (SRB)2104Franzen Jozef (SVK)23020-140 ≣E41corr.
348Leverett Bruce W ...2300Wachtel Hovard1-038 ≣E41It (open) \