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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
253Ahonen PekkaHaapasalo Jukka-P...20840-150 ≣E41It (open)
387Mendes Diego Silv...2062Diniz Paulo Nobil...18051-050 ≣E47Tournament (Elo)04 Nov 2007
315Zaiatz Elena (RUS)2400Khurtsidze Nino (...23990-150 ≣E47Ch Europe (w)
422Lykov Sergey (RUS)2206Sakharov Lev (RUS)21461-050 ≣E41Ch Udmurtia18 Dec 2009
181Ernrooth JArppi Heikki1-050 ≣E41Ch Finland (corr.)
408Katzer Joachim1961Giss Arthur (GER)19900-150 ≣E47Landesliga Bayern...30 Nov 2008
358Foisor Mihaela-Ve...1981Hanley Craig (ENG)24270-150 ≣A40It (open)30 Jul 2006
95Ivanov Igor V (CAN)2424Jussupow Artur (GER)24500-150 ≣E41Ch URS (1 liga)
216Hoefker Mathias (...2262Henrich Thomas (GER)22220-150 ≣E20It
196Soman Satchidanan...2320Ravi Thandalam Sh...23850-150 ≣E41Ch India
362Vaisser Anatoly (...2553Lautier Joel (FRA)26560-149 ≣E46Ch France19 Aug 2006
352Rink Christian (GER)2140Weigel Robert Dr ...22330-149 ≣E41Bayern Landesliga...19 Feb 2006
211Hedman Erik (SWE)2320Cerneanu Norbert ...22701-049 ≣E47It (a) (cat.3)
342Beliavsky Alexand...2631Nisipeanu Liviu-D...27070-149 ≣E46Ch Europe01 Jul 2005
123Chachere Lawrence...2305Kudrin Sergey (USA)25150-149 ≣E46It (open) \
249Valimamade Munir ...Casimiro Eduardo1-049 ≣E20Ch Portugal (team...
171Siebert Lutz (GER)2174Tuerk Philipp (GER)21501-049 ≣A40Ch NRW
18Mukhitdinov Mamad...Petrosian Tigran ...25800-149 ≣E47Match
70GoetgeluckSpassov Liuben (BUL)23670-149 ≣E20Ch World (team) (...
348Li Ruofan (SIN)2398Hou Yifan (CHN)22201-049 ≣E46Zt (w)24 Oct 2005
410Argandona Rivero ...2385Franco Alonso Ale...24900-148 ≣E20It (cat.10)13 Dec 2008
130Vehi Bach Victor ...2385Campos Lopez Mari...23460-148 ≣E20?
71Aloni IsaacMatanovic Aleksan...24900-148 ≣E41It
153Gast Jonathan (SUI)2209Kosiol0-148 ≣E41corr.
246Jussupow Artur (GER)2640Cvitan Ognjen (CRO)25251-048 ≣E41Zt
137Shereshevski Mikh...2475Piesina Gintautas...23901-047 ≣E41Ch URS (1/2 final)
339Otero Diasmany (CUB)2414Hernandez Holden ...24831-047 ≣E47Ch Cuba (Gr. B)10 Apr 2005
306Jacob Gunnar (GER)2226Fleischer Andre (...20681-047 ≣E46Ch NRW (1 liga)08 Dec 2002
431Hatzoudis Gerasim...1735Kolaric Spela (SLO)20411-047 ≣E20Ch Mediterranean ...01 Sep 2010
258Aaltio Erkki (FIN)2133Sammalvuo Tapani ...23930-147 ≣E20It (open)
377Adams Nick A (USA)2220Gauri Shankar (IND)22510-147 ≣E20It (cat.2) (b)14 Jul 2007
284Pugh Larry (USA)2059Nolan Gregory M0-147 ≣E20It \
43Pasman MarksKlavins Janis1-047 ≣E41Ch Riga
187Aleksandrov Aleks...2618Savon Vladimir A ...24501-047 ≣E47Zt
324Agdestein Simen (...2589Heim Sverre (NOR)23411-047 ≣E20Ch Norway (team) ...22 May 2004
87Shereshevski Mikh...2475Yuferov Sergey N ...24121-047 ≣E46Memorial A.Sokolsky
58Tschater BZastrow H0-147 ≣E20Ch BRD (corr.)
288Scharping Hans-Ma...2125Schenk Andreas (GER)24780-147 ≣A40It (open) \
214Aleksandrov Aleks...2525Dragomarezkij Evg...24751-047 ≣E41It (open)
81Acosta Mariano (ARG)2000Hernandez Roman (...23751-046 ≣E20Ch World (team) (...08 Aug 1969
350Santos Marcus Vin...2353Mekhitarian Kriko...22801-046 ≣E46Ch Brazil20 Dec 2005
423Dobrowolski Piotr...2399Zmarzly Aleksandr...20631-046 ≣E20It (open)10 Feb 2010
221Dauner KarlBarsov Alexei (UZB)24700-146 ≣E20It (open)
17Szilagyi Gyorgy (...2370Szabo Stefan1-046 ≣E20It
42Nikolaevsky Yuri ...2315Zurakhov Vladlen ...24151-046 ≣E20Ch Ukraine
444Avila Jimenez Jav...2279Rojas Keim Luis (...23570-146 ≣E20Tournament (open)27 May 2011
204Beaton Kenneth S ...2116Duthie Gordon1-046E41Ch Scotland (team)
359Moskalenko Viktor...2543Lettieri Giuseppe...23061-046 ≣E20It (open)
271Krumwiede KarstenWittje Berthold D...22160-146 ≣E47Cup Nord-West
45Popov Vladilen (BUL)2260Filipov F (BUL)1-045 ≣E41Ch Bulgaria
417Ezat Mohamed (EGY)2459Solomon Kenny (RSA)23510-145 ≣E46Ch Africa28 Jul 2009
287Moskalenko Viktor...2522Campos Moreno Jav...25001-045 ≣E46Ch Catalunia15 Apr 2001
206Agrest Evgenij (SWE)2475Safholm Sten (SWE)20591-045 ≣E20It (open)
396Uwira Oliver (GER)2302Legde Georg (GER)23470-145 ≣E20Hessenliga 2007/0830 Mar 2008
397Kalashian David (...2415Pashikian Arman (...26110-145 ≣E47It (cat.10)25 Apr 2008
376Hillarp Persson T...2567Ong Kezli (SWE)22620-145 ≣E47Ch Sweden11 Jul 2007
441Chmielarz Maciej ...1766Maiorov Nikita (BLR)25460-145E20Ch Europe (active)18 Dec 2010
235Rost Van Tonninge...2280Weigel Herbert (GER)21181-044 ≣E20Ch Germany (senio...
113Korzubov Peter (BLR)2460Kharitonov Andrei...24600-144 ≣E47It
104Deze Anton (YUG)2405Rakic Tomislav (SRB)24300-144 ≣E20It (cat.7)
53Diez Del Corral J...2415Rodriguez Gonzale...23551-044 ≣E20Olympiad
322Martin Catalan Ju...2134Trigo Conde Isaac...22650-144 ≣E20It (open) (c)
77Nevole Vladimir (...2051Janata Michael (CSR)24000-144 ≣E20Ch Czechoslovakia...
456Wang Doudou (CHN)2186Kojima Shinya (JPN)22640-144 ≣E20It \19 May 2012
270Curi Gabriel (URU)2312Maiztegui L (URU)0-144 ≣E46Ch Uruguay
243Bowerman RobertTaylor Gordon (CAN)23300-144 ≣E41It (open)
200Ryskin Alexander ...2515Luther Thomas (GER)25101-044 ≣A40Memorial I.Bolesl...
195Breiden RudiBuechler Franz0-144 ≣E20Ch RLP (seniors)
119Pajarinen SamiVuori Jorma1-044 ≣E20Ch Finland (corr.)
434Mitkov Nikola (MKD)2531Infante Miguel (DOM)22761-044 ≣A40Olympiad23 Sep 2010
93Vinke Dietmar (FIN)2218Busch Raimund (GER)23200-144 ≣E20Ch OWL
449Urkedal Frode (NOR)2448Ochsner Bjorn Mol...22581-043 ≣E41Ch Europe (junior...13 Sep 2011
52Damjanovic Mato (...2303Lengyel Levente (...22930-143 ≣E20Olympiad
27Geller Efim P (RUS)2455Furman Semen (RUS)25501-043 ≣E20Ch URS
22Donner Jan-Hein (...2430Matanovic Aleksan...24900-143 ≣E47It
29Estrada Degrandi ...Shocron Ruben (USA)22590-143 ≣E47Zt
329Pedersen Nicolai ...2466Peek Maurice (NED)23431-043 ≣E46It (open)10 Aug 2004
290Farrell RogerRout Ian Clive1-043 ≣E20Cup Doeberl
203Mazzei Alessandro...2190Sardo A1-043E41Ch Italy (juniors)
7Denker Arnold S (...2293Smyslov Vassily (...24940-143 ≣E47Match \
83Yepez Trotzky (ECU)2180Moraza Manuel (PUR)21870-143 ≣E41Ch Pan-American
205Lisko Frantisek (...2311Lipka Juraj (SVK)23751-043 ≣E41Slovak League 199...
193Pyka Andreas (GER)2056Brauer Christian ...21150-143 ≣A40It (open) \
311Taylor Timothy (USA)2291Berczes David (HUN)23211-043 ≣E20It (cat.8)
389Amerkeshev Madiya...2157Nikolov Sasho (BUL)24090-143 ≣E47Memorial Baharov ...28 Nov 2007
406Lazkano Gaite Tom...1776Spassov Liuben (BUL)24170-143 ≣E20It (open)20 Sep 2008
122Remlinger Larry (...2380Larsen Bent (DEN)25650-142E46It (open)
32Bondarevsky Igor ...Furman Semen (RUS)25500-142 ≣E41Ch URS (1/2 final)
412Familari Giuseppe...1832Tricomi Massimo (...18751-042 ≣E20It (open) (b)06 Jan 2009
394Rej Tomek (AUS)2327Lazarus Ben (AUS)21720-142 ≣E20Ch Australia03 Jan 2008
82Toth Bela (ITA)2345Balaskas Panayoti...20901-042 ≣E20Ch World (team) (...15 Aug 1969
92Baturinsky Victor...Hansen1-042 ≣E41Ch Europe (corr.)
399Kasidonis Antonio...1703Homatidis Panagio...20920-142 ≣E46Ch Greece (junior...28 Jun 2008
86Brilla Banfalvi S...Huuskonen V (FIN)1-042 ≣E20?
115Balashov Yuri S (...2510Novikov Igor A (USA)24651-042 ≣E41?
8Botvinnik Mikhail...2630Reshevsky Samuel ...24300-142 ≣E41Ch World (match-t...
40Rubio Aguado Fern...Letelier Rene (CHI)21510-141 ≣E20Zt
343Santos Marcus Vin...2353Lopez Gonzalez Da...22451-041 ≣E41It (cat.3)09 Jul 2005
47Szabo Laszlo (HUN)1903Portisch Lajos (HUN)25230-141 ≣E41Ch Hungary (match)
215Guseinov Aidyn (AZE)2425Tunik Gennady (RUS)25150-141 ≣E41It (open) \