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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
227Taimanov Mark E (...2580Zaichik Gennadi (...24571-039 ≣E21Olympiad URS
232Palmo Pentti (FIN)2065Hietanen Pentti1-033 ≣E21?
759Arishin Sergei (KGZ)2183Nukin Ashat (KAZ)23470-125 ≣E21Memorial Izmailov...12 Aug 2012
495Kovacs Istvan (HUN)2236Somogyi Istvan (HUN)22381-050 ≣E21Ch Hungary (team)...
66Gligoric Svetozar...2447Evans Larry M (USA)24701-039 ≣E21It
455Bjornsson Bjorn F...2230Addison James1-029 ≣E21It \
718Tyn Ondrej1902Pavelek Karel (CZE)21550-134E21Czech League 2010...03 Apr 2011
102Spassky Boris V (...2548Ghitescu Theodor ...23841-034 ≣E21Ch World (students)
173Lukic ArsenijeDamjanovic Mato (...23030-134 ≣E21It
656Bagapsh Astamur (...Sanakoev Grigory ...22590-120 ≣E21It (open) (a)03 Aug 2008
595Pacheco Daniel (ARG)2297Ferrufino Boris (...22111-041 ≣E21It (cat.2)12 Jun 2005
591Drozdowski Kacper...1812Paprocki Jaroslaw...22270-148 ≣E21Tournament (regio...04 Apr 2005
122Borisenko Georgy ...2354Kondratiev1-042 ≣E21It
49Kozma Julius (CSR)2380Vesely Jaromir (CZE)19791-042 ≣E21Ch Czechoslovakia
118Lazarev Efim M (UKR)2428Kurass Iskir (UKR)23401-048 ≣E21Ch Ukraine (1/2 f...
225Gorniak Juri (MDA)Siniavsky Alexander1-021 ≣E21Olympiad URS
624Pushkov Nikolai (...2513Kornyukov Alexey ...24161-037 ≣E21Memorial G.I.Ivan...03 Jan 2007
443Sasata Robert (CAN)2279Ferguson Bobby (USA)22320-134 ≣E21It (open)
379Manchego CarlosDebarnot Roberto ...23550-143 ≣E21It (open) \
273Lukacs Peter (HUN)2405Pinkas Karol (POL)23201-041 ≣E21It (a)
631Hoang Thi Bao Tra...2265Andriasian Siranu...22341-044 ≣E21Ch World (team) (w)21 May 2007
648Stegariu Vlad-Ionut1937Frusescu Dorian-C...1-041 ≣E40Ch Romania (juniors)12 Apr 2008
68Golz Werner (GER)2410Rellstab Ludwig S...22650-124 ≣E40It
599Brener Ilja (GER)2334Warakomski Tomasz...23960-124 ≣E40Ch Europe (junior...
261Cherek GunterSchimron H0-129 ≣E40corr.
198Bjerre Troels (DEN)2320Hamann Svend (DEN)24900-130 ≣E40Tournament
678Murillo Alexis (CRC)2310Iturrizaga Eduard...25550-146 ≣E40Zt24 Jun 2009
742Baciu Stefan (ROM)2222Tudose Cristian (...18541-039 ≣E40Ch Romania17 Feb 2012
739Ramon Solans Albe...2280Cruz Jonathan (PER)23860-122 ≣E40It (cat.2)07 Dec 2011
639Enchev Evgeni (BUL)1988Nikolova Adriana ...22250-133 ≣E40Ch Bulgaria (stud...10 Nov 2007
657Nikolaev Alexande...1986Abylkassymova Rau...18341-039E40Tournament (open) \05 Aug 2008
692Ruschukov BojanNikolova Adriana ...22950-137 ≣E40It \22 May 2010
616Jakab Attila (HUN)2402Ilincic Zlatko (SRB)24510-130 ≣E40It (cat.7)07 Jun 2006
62Tserendagva D (MGL)Reissmann Paul (PRO)1-030 ≣E40Olympiad12 Sep 1956
694Potkin Vladimir (...2630Corrales Fidel (CUB)25991-035 ≣E40Memorial J.Capabl...16 Jun 2010
594Brener Ilja (GER)2334Lettieri Giuseppe...22650-150 ≣E40Cup Mitropa25 May 2005
533Zolotov Bogdan (RUS)2207Chuiko Alexander ...24130-141 ≣E40Ch Tula Region (o...
396Yepez Olavo (ECU)2305Narciso Dublan Ma...23000-123 ≣E40It (open)
695Kozenkov Valery (...2132Rutman Aleksandr ...21441-027 ≣E40It (open) \24 Jun 2010
517Graf Alexander (GER)2610Zeller Frank (GER)24530-139 ≣E40It (open)
561Giuriato Sergio (...2020Wronn Bernd (GER)22510-120 ≣E40It (open)
372Cacho Reigadas Se...2524Corral Blanco Jua...24361-030 ≣E40It (active)
380Popov Sinisa S (SRB)2443Stanimirovic Alek...22401-031 ≣E40Ch Yugoslavia (team)
566Bromberger Stefan...2440Loeffler Stefan (...24320-130 ≣E40Bundesliga 2002/03
27Cuellar Gacharna ...2280Vesterinen J1-043 ≣E41Olympiad
58Barda Yngvar (NOR)2280Keller Dieter Ren...23590-128 ≣E41Olympiad (sf)02 Sep 1956
28Gligoric Svetozar...2447Janosevic Dragolj...23301-032 ≣E41It
37Milic Borislav (YUG)Matanovic Aleksan...24900-140 ≣E41Match
295Letic Stevan (SRB)2104Franzen Jozef (SVK)23020-140 ≣E41corr.
326Frieser Klaus (GER)2151Prizant Michael (...21360-138 ≣E41Europe Tournament...
389Bazan GerardoKanefsck Gustavo ...23731-034 ≣E41It (open)
76Dittmann SieghardOlafsson Fridrik ...24340-140 ≣E41Olympiad (student...
163Furman Semen (RUS)2550Padevsky Nikola (...23551-042 ≣E41Ch Czechoslovakia...
17Najdorf Miguel (POL)2445Reshevsky Samuel ...24300-135 ≣E41Match
197Ivanchenko Sergey...2054Rovner Dmitry (RUS)0-138 ≣E41?
231Koski PekkaRantanen Veikko1-023 ≣E41?
341Dive Russell John...2339Martin Benjamin (...23751-050 ≣E41Ch New Zealand
133Zilber Israel (USA)2400Roizman Michael (...21941-048 ≣E41Ch URS (team)
360RimpinevaKivisto Mikko (SIN)22771-026 ≣E41Ch Finland (corr.)
25Taimanov Mark E (...2386Euwe Max (NED)0-141 ≣E41Tournament (candi...
259Yrjonen MarkkuMolarius Reijo (FIN)1-036 ≣E41?
554Gutov Andrey (RUS)2366Kolomensky Vladim...23151-047 ≣E41Ch Russia (1/2 fi...
92Ojanen Kaarle S (...2335Euwe Max (NED)0-131 ≣E41Olympiad
258Portisch Ferenc (...2475Rigo Janos (HUN)23851-036 ≣E41Ch Hungary
192Hofmann GeorgeSchmid Hans-Peter...18990-142 ≣E41corr.
489Potapov Alexander...2241Filippov Valerij ...25951-045 ≣E41Cup Russia
297Kausek KZlebcik L1-037 ≣E41Ch Czechoslovakia...
2Gligoric Svetozar...2447Rossolimo Nichola...24501-041 ≣E41It
362Garralda AGarcia Trobat Fra...22910-133E41It (open)
59Ciocaltea Viktor ...2420Safvat Yousof (IRN)0-146 ≣E41Olympiad (sf)06 Sep 1956
24Reshevsky Samuel ...2430Euwe Max (NED)1-040 ≣E41Tournament (candi...
54Enevoldsen Jens (...2350Larsen Bent (DEN)24150-129 ≣E41It
47Furman Semen (RUS)2550Spassky Boris V (...25481-029 ≣E41Ch URS
74Taimanov Mark E (...2386Antoshin Vladimir...22501-041 ≣E41Ch URS
46Furman Semen (RUS)2550Kotov Alexander A...25001-037 ≣E41Ch URS
48Vladimirov Boris ...2340Lisitsyn Georgy (...0-133 ≣E41Ch URS (1/2 final)
472Kostin Sergei (RUS)2290Tunik Gennady (RUS)24500-147 ≣E41Cup Russia (open)
252Boudy Julio (CUB)2188Campos Lopez Mari...23551-042 ≣E41It
253Portisch Lajos (HUN)2630Sosonko Gennadi (...25751-038 ≣E41It (cat.14)
263Keene Raymond D (...2455Romanishin Oleg M...25600-140 ≣E41?
119Borja MEuwe Max (NED)0-134 ≣E41Olympiad
30Szabo Laszlo (HUN)1903Pogats Jozsef (HUN)22301-034 ≣E41Ch Hungary
248KeneszDuenhaupt HW (GER)1-040 ≣E41Ch Europe (team) ...
250Lerner Konstantin...2515Zaichik Gennadi (...24571-041 ≣E41Memorial V.Karsel...
251Rodriguez Orestes...2485Olafsson Fridrik ...25300-126 ≣E41It (cat.10)
236Sydor Andrzej (POL)2325Pinkas Karol (POL)23201-045 ≣E41It (b)
81Yepez Olavo (ECU)2305Blatny Frantisek ...21120-123 ≣E41Ch World (team) (...
237Tarjan James E (USA)2490Padevsky Nikola (...23551-030 ≣E41It
243Ivanov Igor V (CAN)2424Popov Nikolay (MDA)24100-140 ≣E41Tournament
254Podgaets Mikhail ...2465Donchenko Anatoly...23851-033 ≣E41?
213Bergdahl AssarNordstrom Felix (...21810-140 ≣E41corr.
271Gerusel Mathias (...2395Behle Karl-Willi ...22561-028 ≣E41Bundesliga (2nd) ...
199Baart JoanWeyerstrass Ronal...0-148E41Match
195FehsingerSchlosser1-029 ≣E41Europe Tournament...
53Kozma Julius (CSR)2380Lax Hendrich1-029 ≣E41Ch Czechoslovakia...
202Steiner Josef (AUT)2116Yudovich Mikhail ...1-033 ≣E41corr.
82Dzieciolowski AdamWiniwarter Felix ...21760-133 ≣E41Memorial Przepiorka
84Panno Oscar (ARG)2438Garcia Vera Romeo1-032 ≣E41Ch Argentina
496Balogh JBoros Laszlo (HUN)19190-139 ≣E41Ch Hungary (team)...
50Palmason Gudmundu...2270Einarsson Jon1-029 ≣E41It