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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
499Kodentsov Grisja ...2275Werle Jan (NED)22161-040 ≣E20Ch Netherlands (j...
500Bernat Marcin (POL)2227Rybak Tomasz (POL)21631-030 ≣E41Ch Poland (team) ...
501Babula Vlastimil ...2567Rigo Zsolt (SVK)22221-027 ≣E47Ch Slovakia
502Elsness Frode (NOR)2395Khenkin Igor (GER)26330-150 ≣E41Cup Rilton
503Rogers Ian (AUS)2574Solomon Stephen J...24351-041 ≣E47It (cat.10)
504Aboud Firas (SYR)2310Aboudi M (JOR)21661-042 ≣E47Ch Asian Cities (...
506Kunz Konstantin (...2186Luther Thomas (GER)25470-146 ≣E47It (open)
507Rozumbersky ASeiner F1-032 ≣E47It (open)
508Kantsler Boris (ISR)2524Gershon Alik (ISR)25021-030 ≣E47Ch Israel (team)
509Van Beers Eddy (BEL)2346Kolev Atanas (BUL)25820-143 ≣E47Olympiad
510Korotylev Alexey ...2528Paramonov Dimitri...23321-032 ≣E47Memorial M.Chigor...
511Savon Vladimir A ...2449Smirnov Igor (UKR)24161-047 ≣E41Ch Ukraine (team)
512De Souza Mauro (BRA)2366Tsuboi Edson Kenj...23411-039 ≣E47Ch Paulista (final)
514Zuehlke Burkhard ...2173Ertl Rolf21601-034 ≣E47Bayern Regionalli...
522Kekki Petri (FIN)2300Sorsa Nuutti (FIN)22771-046 ≣E47Ch Finland
517Graf Alexander (GER)2610Zeller Frank (GER)24530-139 ≣E40It (open)
518Salo Heikki (FIN)2242Nyysti Sampsa (FIN)22150-148 ≣E47Ch Finland (team)...
519Salo Heikki (FIN)2242Sorsa Nuutti (FIN)22771-038 ≣E47Ch Finland (team)...
520Labat Antoine (FRA)2024Dourerassou Jonat...21030-142 ≣E11Ch France (team) ...
521Graf Alexander (GER)2610Kveinys Aloyzas (...25471-030 ≣E47Bundesliga 2000/01
523Hasidovski Arnold...2202Marcotulli Giancarlo1-043 ≣E47Tournament (IECG)
525Figueroa Tomas (CHI)2104Vasquez Rodrigo (...24680-123 ≣E47Memorial Pedro Do...
526Montalvo Alejandr...2259Warner Delisle (BAR)21761-031 ≣E47Sub-zt
527Graf Alexander (GER)2610Sulskis Sarunas (...25711-031 ≣E47Ch World FIDE (KO...
528Prudnikova Svetla...2411Baginskaite Camil...23361-034 ≣E47Ch World FIDE (KO...
529Santa Luis A (PUR)2161Campora Daniel H ...25360-121 ≣E47It (open)
530Jussupow Artur (GER)2633Solomunovic Igor ...24211-037 ≣E47It (open)
531Motuz Karol (SVK)2354Markos Jan (SVK)24350-137 ≣E47Extra League 2001/02
532Degtiarev Evgeny ...2180Faizrakhmanov Gen...21900-133 ≣E41Ch Russia (junior...
533Zolotov Bogdan (RUS)2207Chuiko Alexander ...24130-141 ≣E40Ch Tula Region (o...
534Kramnik Vladimir ...2809Tiviakov Sergei (...25991-038 ≣E47It (cat.19)
535Ali Bin Ali (UAE)2175Ghorbani Mohsen (...23170-133 ≣E47Ch Asian Cities (...
537Niklasch Oliver (...2324Kveinys Aloyzas (...25410-132 ≣E47It (open)
539Niemela Antti (FIN)2256Koskela Niina (FIN)23101-045 ≣E47Ch Finland (team)...
540Salo Heikki (FIN)2279Sorsa Nuutti (FIN)22311-040 ≣E47Ch Finland (team)...
542Johannessen Leif ...2527Jenni Florian (SUI)25161-029 ≣A15Bundesliga 2002/03
543Muse Drazen (CRO)2442Ellers Holger (GER)24251-034 ≣A05Bundesliga 2002/03
544Westermayer Johan...1802Baumegger Siegfri...23500-132 ≣E47It (open)
568Zilberstein Dmitr...2379Rowley Robert (USA)22821-032 ≣E47It \
545Divljan Igor (YUG)2165Gerzhoy Leonid (CAN)23800-147 ≣E47Ch World (juniors...
547Ferrufino Boris (...2201Pecorelli Garcia ...24510-133 ≣E47It \
548Grycel Kamil (POL)2295Dobrowolski Piotr...23960-136 ≣E47Ch Poland (team)
549Gutierrez Lopez C...2172Jimenez Ruiz Jose...19800-134 ≣A40Ch Malaga (qual)
550Gutierrez Lopez C...2172Lorenzini Martin ...23751-041 ≣E47It (open)
551Khurtsidze Nino (...2433Balashov Yuri S (...25211-033 ≣A40It (open) \
552Shipov Sergei (RUS)2604Bagirov Rufat (AZE)24940-136 ≣E10It (open) \
553Prasad Devaki V (...2400Mishra Neeraj-Kum...23411-043 ≣E47Ch India
554Gutov Andrey (RUS)2366Kolomensky Vladim...23151-047 ≣E41Ch Russia (1/2 fi...
555Johannessen Leif ...2527Moen Andreas (NOR)22650-134 ≣A15It (cat.6)
556Jasny Stanislav (...1858Machycek Lubomir ...22711-034 ≣E47It (open)
557Computer \Computer \0-150 ≣E46It (computers)
560Milanovic Danilo ...2429Vasovski Nikola (...23251-031 ≣E47It (open)
561Giuriato Sergio (...2020Wronn Bernd (GER)22510-120 ≣E40It (open)
562Pelletier Yannick...2589Lutz Christopher ...25961-041 ≣E47It (cat.16)
563Jakab Attila (HUN)2402Berczes Csaba (HUN)24191-039 ≣E47It (cat.2)
565Navrotescu Catali...2410Bagheri Amir (FRA)24960-146 ≣E41Ch France (team) ...
566Bromberger Stefan...2440Loeffler Stefan (...24320-130 ≣E40Bundesliga 2002/03
567Zilberstein Dmitr...2379Del Pilar Reynald...23061-033 ≣E41It \
570Kaidanov Gregory ...2611Lerner Konstantin...25041-039 ≣E47It (open) \
571Petkevich Jusefs ...2436Gerenski Hristo (...22041-050 ≣A04Ch Europe (seniors)
572Melkumjanc NicolajDeuber Roman (SUI)20960-121 ≣E20Ch Switzerland
606Van der Werf RVermeulen F0-129 ≣E10It (open)
576Verzhansky Alexan...2327Flyagin Dmitriy (...1-035 ≣E41Ch Russia (junior...
579Ngo Manh Ha (VIE)Vo Thanh Ninh (VIE)23471-039 ≣E41Ch Vietnam (junio...
611Iotov Valentin (BUL)2503Petkov Vladimir (...24431-031 ≣E47Ch Bulgaria
645Danilov Evgeny (RUS)2215Iljiushenok Ilia ...23140-126 ≣E41Ch Russia (junior...
655Perez Inclan Jorg...1626Lorinczi Retek Pe...16861-035 ≣E41It (open)
681Aronian Levon (ARM)2768Naiditsch Arkadij...26971-049 ≣E47Ch World (active)...
712Verko Tatiana (KAZ)2104Kovanova Baira (RUS)23691-026 ≣E47It (open) (w)
388Tsevremes Ioannis...1955Tolnai Tibor (HUN)24950-133 ≣E47It (open)
192Hofmann GeorgeSchmid Hans-Peter...18990-142 ≣E41corr.
97Gligoric Svetozar...2447Pachman Ludek (GER)22781-042 ≣E47Izt
96Prokhorovich Taras ERovner Dmitry Osi...1-048 ≣E47Tournament
204Pulieri PaoloMicka0-132 ≣E47Ch Europe (corr.)
40Schweber Samuel (...2348Spassky Boris V (...25480-135 ≣E41Ch World (juniors...
495Kovacs Istvan (HUN)2236Somogyi Istvan (HUN)22381-050 ≣E21Ch Hungary (team)...
472Kostin Sergei (RUS)2290Tunik Gennady (RUS)24500-147 ≣E41Cup Russia (open)
489Potapov Alexander...2241Filippov Valerij ...25951-045 ≣E41Cup Russia
100Bobotsov Milko G ...2405Kadrev Zdravko1-048A15Ch Bulgaria
67Gligoric Svetozar...2447Stenborg Ake (SWE)22800-148 ≣E41Zt
9Germek MilanO'kelly De Galway...24600-134 ≣E41It
395Muir Andrew J (SCO)2360Prandstetter Edua...23750-149E47Cup European Club
397Lukacs Peter (HUN)2485Landenbergue Clau...23971-043 ≣A40It \
313Portisch Ferenc (...2405Rigo Janos (HUN)23190-141 ≣E47It (open)
434Vaisser Anatoly (...2555Petursson Margeir...25651-026 ≣E47It (open)
303Kahn Manfred (GER)2139Staller Peter (GER)22441-043 ≣A40It
574Garcia Gata Jorge...2021Dimitrov Vladimir...24340-126 ≣E47Memorial Narciso ...
341Dive Russell John...2339Martin Benjamin (...23751-050 ≣E41Ch New Zealand
28Gligoric Svetozar...2447Janosevic Dragolj...23301-032 ≣E41It
307Gil Capape Javier...2444Janssen Han (NED)23280-147 ≣E47It \
86Polo Gomez Vicent...2212Shocron Ruben (USA)22590-142 ≣A17?
332Lalic Bogdan (ENG)2485Ortega Lexy (ITA)24401-040 ≣E47It (cat.11)
41Somers StafJorgensen Vagn Rauhe0-139 ≣E41Ch World (juniors...
515Albarran Gustavo ...2255Vazquez Maximilia...21311-050 ≣E47Ch Superior Torre...
377Allacher Erwin (AUT)2124Wutte H20101-026 ≣E47Staatsliga B
383Michenka Jozef (CZE)2346Prandstetter Edua...24100-133 ≣E47Ch Czechoslovakia...
200Cardoso Carlos Al...2207Sharif Mehrshad (...23300-141 ≣E41Olympiad
483Kveinys Aloyzas (...2545Nikcevic Nebojsa ...24801-035 ≣A13It (open)
102Spassky Boris V (...2548Ghitescu Theodor ...23841-034 ≣E21Ch World (students)
424Weindl Alfred (GER)2350Joachim Sven (GER)23801-043 ≣D31It (open)