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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
258Aaltio Erkki (FIN)2133Sammalvuo Tapani ...23930-147 ≣E20It (open)
201Aarland Stein Ari...2250Fyllingen Roy Har...23300-138 ≣E20Ch Norway (team) ...
371Abreu Guilherme (...2085Gazel Frederico (...22500-133 ≣E47Tournament (regio...07 Jun 2007
276Abreu Guilherme (...2076Reis Paulo F J (BRA)22800-126 ≣A40Cup Vila Velha
81Acosta Mariano (ARG)2000Hernandez Roman (...23751-046 ≣E20Ch World (team) (...08 Aug 1969
377Adams Nick A (USA)2220Gauri Shankar (IND)22510-147 ≣E20It (cat.2) (b)14 Jul 2007
319Adams Nick A (USA)2212Demaria Juan Pabl...22601-031E41Dos Hermanas Qual...14 Mar 2003
300Adams Nick A (USA)2197Shapiro Daniel E ...22891-021 ≣E41It (open) \
402Addison Bret (ENG)2266Gordon Stephen J ...25210-134 ≣E46Ch Great Britain04 Aug 2008
295Agdestein Simen (...2578Jenni Florian (SUI)25161-028 ≣E20Ch ICC (blitz) (f...
324Agdestein Simen (...2589Heim Sverre (NOR)23411-047 ≣E20Ch Norway (team) ...22 May 2004
220Agrest Evgenij (SWE)2475Sjoberg Mats (SWE)24501-033 ≣E46Cup Rilton
219Agrest Evgenij (SWE)2475Astrom Goran (SWE)22901-040 ≣E41Ch Sweden (open)
206Agrest Evgenij (SWE)2475Safholm Sten (SWE)20591-045 ≣E20It (open)
188Agrest Evgenij (SWE)2599Kiselev Sergey (RUS)24700-127 ≣E41It (a)
253Ahonen PekkaHaapasalo Jukka-P...20840-150 ≣E41It (open)
80Aijala Jouko (FIN)2133Damiron Dickson A1-025 ≣E41Ch World (team) (...04 Aug 1969
250Aleksandrov Aleks...2595Campora Daniel H ...25401-021 ≣E47It (open)
214Aleksandrov Aleks...2525Dragomarezkij Evg...24751-047 ≣E41It (open)
299Aleksandrov Aleks...2633Izoria Zviad (GEO)25651-030 ≣E47It (open) \
238Aleksandrov Aleks...2660Volzhin Alexander...24951-015 ≣E47It (open)
187Aleksandrov Aleks...2618Savon Vladimir A ...24501-047 ≣E47Zt
336Alm Hakan (SWE)2293Lundin Anders (SWE)22380-130 ≣E20Ch Sweden (team) ...26 Feb 2005
71Aloni IsaacMatanovic Aleksan...24900-148 ≣E41It
389Amerkeshev Madiya...2157Nikolov Sasho (BUL)24090-143 ≣E47Memorial Baharov ...28 Nov 2007
278Amico Rosario (ITA)2007Colabrese Cary (ITA)15841-038E41It (open) (b)27 Aug 2000
277Amico Rosario (ITA)2007Godina Paolo16181-039 ≣E46It (open) (b)25 Aug 2000
297Andrade Ulises (VEN)2246Pacheco Marco (PER)23530-139 ≣E46Ch Pan-American (...
148Apaza HenryMoutousis Konstan...24280-129 ≣E20Ch World (juniors...
410Argandona Rivero ...2385Franco Alonso Ale...24900-148 ≣E20It (cat.10)13 Dec 2008
228Arizanov Tome (MKD)2108Bogdanovski Vlatk...24600-128 ≣E46It (open)
444Avila Jimenez Jav...2279Rojas Keim Luis (...23570-146 ≣E20Tournament (open)27 May 2011
310Babos Csaba (ROM)2253Meszaros Tamas (HUN)23641-041 ≣E20It (cat.1)
139Balashov Yuri S (...2540Karpman Vadim (UKR)24901-036 ≣E41Ch URS (qual)
115Balashov Yuri S (...2510Novikov Igor A (USA)24651-042 ≣E41?
105Balashov Yuri S (...2545Gavrikov Viktor (...24851-026 ≣E41Ch URS (1 liga)
298Ballon Guenther J...2219Westerkamp Bert (...21431-037 ≣E20It (open)
272Banerjee Sushant ...2181Radha S R (IND)20341-020 ≣E41Ch Commonwealth
92Baturinsky Victor...Hansen1-042 ≣E41Ch Europe (corr.)
134Bauerle PNoren K1-032 ≣E20Ch State Michigan...
204Beaton Kenneth S ...2116Duthie Gordon1-046E41Ch Scotland (team)
197Behrendt LCaldwell Justin1-021 ≣E20corr.
342Beliavsky Alexand...2631Nisipeanu Liviu-D...27070-149 ≣E46Ch Europe01 Jul 2005
453Benson Oisin P (IRL)2005O'Donnell Conor17800-134 ≣E47It (open)19 Feb 2012
415Berczes David (HUN)2519Csonka Attila (HUN)23421-040 ≣E20Ch Hungary (team)...22 Feb 2009
409Berczes David (HUN)2514Wells Peter K (ENG)25161-027 ≣E20Ch England (team)...06 Dec 2008
182Berger Falk1753Fobbe Ottmar1-028 ≣E20Ch Bahn (G)
131Bezzola PlinioDehmelt Karl (USA)22781-029 ≣A15Ch USA (corr.)
380Bick John D (USA)2223Rensch Daniel (USA)23340-131 ≣E47It \15 Aug 2007
247Birens Eric-Andre...1969Bes Stephane (FRA)20951-030 ≣E20Ch France (team) ...
145Birens Eric-Andre...1969Harovelo Ingmar (...22510-137 ≣E20Ch France (qual)
242Blasco Miguel (ESP)2241Pogorelov Ruslan ...24400-137 ≣E47It (open)
404Blengino Luca (ITA)1886Bonade Massimo (ITA)21180-140 ≣E20It (open)05 Sep 2008
372Blok Michiel (NED)2207Pliester Leon (NED)23960-126E20It (open)09 Jun 2007
436Bodyagin Anton (RUS)1826Mytarev Valeriy (...1-018 ≣E47Tournament (open)
32Bondarevsky Igor ...Furman Semen (RUS)25500-142 ≣E41Ch URS (1/2 final)
2Bondarevsky Igor ...Botvinnik Mikhail...26301-038 ≣E20Ch URS
37Botvinnik Mikhail...2307Averbakh Yuri L (...24451-024 ≣E47Game (training)
8Botvinnik Mikhail...2630Reshevsky Samuel ...24300-142 ≣E41Ch World (match-t...
243Bowerman RobertTaylor Gordon (CAN)23300-144 ≣E41It (open)
195Breiden RudiBuechler Franz0-144 ≣E20Ch RLP (seniors)
86Brilla Banfalvi S...Huuskonen V (FIN)1-042 ≣E20?
11Bronstein David I...2432Najdorf Miguel (POL)24451-021 ≣E20Tournament (candi...
345Brujic Bozidar (SRB)2256Jovanovic Zivojin...23500-125 ≣E46It (open) \19 Aug 2005
273Brunner Nicolas (...2170Roser Kevin (FRA)23190-141 ≣E41It (open)
285Carrabeo Garcia M...2072Campora Daniel H ...25360-140 ≣E41It (open)
90Carvajal A2115Van Riemsdijk Her...23451-037 ≣A40Zt
274Casocobos MartinezSegurado Garcia M...19200-134 ≣E20Ch Asturia (team)...
420Cavaterra Umberto1801Messina Roberta (...19000-135 ≣E46Memorial Alvise Z...26 Sep 2009
316Cebalo Miso (CRO)2520Iotti Pierluigi (...22911-033 ≣E41It (cat.8)
123Chachere Lawrence...2305Kudrin Sergey (USA)25150-149 ≣E46It (open) \
167Chapman RogerStigar Petter (NOR)22980-124 ≣E20corr.
112Chekhov Valery A ...2520Sokolov Andrei (FRA)25050-130 ≣E47Ch URS
48Cherepkov Alexand...2395Korchnoi Viktor (...25560-130 ≣E41Ch URS
320Chiong Luis (PHI)2381Zarnicki Pablo (ARG)25230-128 ≣E41Dos Hermanas Qual...16 Mar 2003
72Chistiakov Alexan...Zelevinsky V0-141 ≣E20Tournament
441Chmielarz Maciej ...1766Maiorov Nikita (BLR)25460-145E20Ch Europe (active)18 Dec 2010
429Chmielarz Maciej ...1766Miszczak Mateusz ...19051-028 ≣E20Ch Poland (team) ...09 Jul 2010
91Choon Foo LC2200Rossolimo Nichola...24500-133 ≣E47Olympiad
308Chouquet Adrien (...2132Shchekachev Andre...25460-128 ≣E41It (open)
102Christiansen Larr...2505Rodriguez Ruben (...24151-033 ≣E47Izt (cat.12)
20Ciejka TadeuszSzymanski Aleksander0-126 ≣E46Ch Poland
41Ciocaltea Viktor ...2420Geller Efim P (RUS)24550-129 ≣E41Memorial Przepiorka
97Clarke Thomas (IRL)2137Keeshan Michael1-023 ≣E41It (open)
447Colin Vincent (FRA)2410Fantinel Thibault...22660-135 ≣A40Ch France (access...20 Aug 2011
455Conquest Stuart (...2509D'Costa Lorin (ENG)23811-036 ≣E46Ch England (team)...06 May 2012
46Crepinsek Ljubomi...2305Gilbertson D1-032 ≣E46Memorial Stevenson
3Cruz Walter Oswal...Trompowsky Octavio1-036 ≣E20Ch Brazil (match)
270Curi Gabriel (URU)2312Maiztegui L (URU)0-144 ≣E46Ch Uruguay
458Cutmore Martin J ...2044Mackle Dominic (ENG)21301-029 ≣E20It (open)02 Sep 2012
114Cvitan Ognjen (CRO)2450Gruenberg Hans-Ul...24701-040 ≣E41It (cat.9)
52Damjanovic Mato (...2303Lengyel Levente (...22930-143 ≣E20Olympiad
388Da Silva Tiago He...2096Diniz Paulo Nobil...18051-039 ≣E46Tournament (Elo)06 Nov 2007
184Dauner KarlBender Stephan (GER)22651-038 ≣E20Liga North Baden
221Dauner KarlBarsov Alexei (UZB)24700-146 ≣E20It (open)
357Dean Jim H (USA)2251Kjartansson Gudmu...22460-129 ≣E41It (cat.2)10 Jul 2006
9De Freitas Marcio...Oliveira Washington1-027 ≣E41Ch Brazil
7Denker Arnold S (...2293Smyslov Vassily (...24940-143 ≣E47Match \
325Derieux Christian...2159Hinks-Edwards Tho...23830-135 ≣E20Ch Paris (open)03 Jul 2004
264Derieux Christian...2172Masserey Yvan (SUI)23700-141 ≣E46It (open)