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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
297Kausek KZlebcik L1-037 ≣E41Ch Czechoslovakia...
182Kausek KBubenik J1-037 ≣E47?
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
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)
390Kjeldsen Jens (DEN)2365Tolnai Tibor (HUN)24950-131 ≣E47It (open)
179Klompus GrigoryRoskov V1-037 ≣E47corr.
83Kluger Gyula (HUN)2250Ivkov Borislav (SRB)24160-130 ≣E47Match \
15Kluger Gyula (HUN)2250Florian Tibor (HUN)1-038 ≣E41Ch Hungary
238Knaak Rainer (GER)2520Timoscenko Gennad...24830-134 ≣E47?
216Knaak Rainer (GER)2515Garcia Gonzales G...24501-042 ≣E41Memorial J.Capabl...
286Knaak Rainer (GER)2505Tischbierek Raj (...24541-042 ≣E41It
325Knaak Rainer (GER)2505Horvath Jozsef M ...21041-030 ≣E47It (cat.12)
324Knaak Rainer (GER)2505Georgiev Kiril (MKD)25351-038 ≣E47Match \
288Knaak Rainer (GER)2490Prandstetter Edua...24401-027 ≣E47Ch Czechoslovakia...
425Knaak Rainer (GER)2540Korchnoi Viktor (...26351-023 ≣E47Cup Hofmann
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
510Korotylev Alexey ...2528Paramonov Dimitri...23321-032 ≣E47Memorial M.Chigor...
584Korotylev Alexey ...2604Negi Parimarjan (...23521-039 ≣E47It (cat.7)23 Jan 2005
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)...
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
731Kovalenko Igor (UKR)2567Voronov Yuri (UKR)22811-025 ≣E47It (open)04 Sep 2011
635Kozakov Mikhail (...2449Rybak Tomasz (POL)22821-041 ≣E47Tournament (open)28 Jul 2007
672Kozakov Mikhail (...2437Ganin Maksim (UKR)24271-040 ≣E41It \17 Apr 2009
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
53Kozma Julius (CSR)2380Lax Hendrich1-029 ≣E41Ch Czechoslovakia...
148Kozma Julius (CSR)2380Damjanovic Mato (...23031-038 ≣E47It
49Kozma Julius (CSR)2380Vesely Jaromir (CZE)19791-042 ≣E21Ch Czechoslovakia
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.)
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)
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...
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) \
399Liimatta MarttiKirsi Vesa0-130 ≣E46?
675Li Panru (CHN)2132Wang Xiaohui (CHN)22310-149 ≣E47Ch Asia (w)23 May 2009
405Lisjak Zlatko (CRO)2314Jokovic Dusan (SLO)20821-033 ≣E47Tournament (team)
201Littleton Michael...2275Sharif Mehrshad (...23301-012 ≣E10Olympiad
407Livshits Ron (CAN)2336McGarrett Ian (CAN)21721-025 ≣E47It
230Lombard Andre (SUI)2350Unzicker Wolfgang...25351-038 ≣E47Ch Switzerland
277Loschi EQuattrocchi Gaetano1-022E46?
167Luckis Marcos2270Alvarez Jose_ (CUB)23680-126 ≣E47Zt
134Luckis Marcos2270Caro1-042 ≣E47Ch Pan-American
269Luft Josef2155Grzeskowiak Felix1-034 ≣E47World Tournament ...
585Lugovoi Aleksei (...2547Naiditsch Arkadij...26411-034 ≣E47It (open) \16 Feb 2005
246Lukacs Peter (HUN)2460Barczay Laszlo (HUN)24650-122 ≣E47Ch Hungary
273Lukacs Peter (HUN)2405Pinkas Karol (POL)23201-041 ≣E21It (a)
173Lukic ArsenijeDamjanovic Mato (...23030-134 ≣E21It
737Lund Esben (DEN)2398De Verdier Michae...23861-027 ≣E47It (open)26 Nov 2011
735Lund Stale (NOR)1848Swiercz Dariusz (...25850-119E47It (open)03 Nov 2011
79Lutikov Anatoly S...2515Aronson Lev (RUS)1-040 ≣E47Ch URS (1/2 final)
423Lyrberg Patrik (SWE)2405Dive Russell John...23151-023 ≣E41It
438Lyrberg Patrik (SWE)2400Koch Thomas (GER)20540-143 ≣E41It (open)
450Lyrberg Patrik (SWE)2415Bilalic Merim (BIH)22810-129 ≣E41Ch World (juniors...
671Macias Murillo Br...2335Fier Alexander Hi...26041-033 ≣E47Ch South America ...11 Apr 2009
448Mackie John JMrugala Artur0-133 ≣E46?
668Maia Marco Aureli...2136Guimaraes Wagner ...22910-130 ≣E47It (cat.2)16 Feb 2009
756Maiorov Nikita (BLR)2574Darmarakis Mihail...22140-140 ≣E47It (open)08 Jul 2012
426Maki-Torkko Martt...2195Oksanen Yrjo1-032 ≣E47?
379Manchego CarlosDebarnot Roberto ...23550-143 ≣E21It (open) \
461Mancini Mario (FRA)2290Gosset Arnaud (FRA)22201-028 ≣E47It (open)
485Mancini Mario (FRA)2285Marzolo Cyril (FRA)23701-024 ≣E47Ch France (b)
275Mann VPiastowski Kurt (...19780-124 ≣E41Ch DDR (corr.)
680Mareco Sandro (ARG)2503Corrales Fidel (CUB)26020-142E10Ch Continental Am...30 Jul 2009
311Maresca FilippoVincenzi R0-122 ≣E41?
664Marinone Lucio (ITA)2008Provera Emanuele ...21380-131 ≣E41It (open)28 Dec 2008