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Nimzo-Indian, 4.e3, Main line with ...c5 Notation: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nf3 d5 6. Bd3 c5 7. 0-0 Nbd7

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
65Donner Jan-Hein (...2430Lengyel Levente (...22930-136 ≣E41?
73Sarkilahti OsmoSjoman Seppo0-121 ≣E41?
79Vellonen PekkaTurunen Pekka (FIN)22460-136 ≣E47?
64Donner Jan-Hein (...2430Damjanovic Mato (...23030-136 ≣E41?
80Siltakorpi KariVuorinen Jarmo1-035 ≣E47?
76Lehtinen TimoKarjalainen Hannu1-021 ≣A40?
83Vellonen PekkaPlank Gosta1-048 ≣A13?
75Gligoric Svetozar...2600Andersson Ulf (SWE)25101-050 ≣E47?
67Gligoric Svetozar...2447Damjanovic Mato (...23031-040 ≣E41?
103Tulevski Vasil G ...1945Kim Yong Ye17790-139 ≣E47Ch Australia (major)05 Jan 2008
29Boleslavsky Isaak...Sokolsky Alexey (...1-034 ≣E41Ch Belarus
100Milos Gilberto (BRA)2620Lima Darcy (BRA)25291-035 ≣E47Ch Brazil17 Feb 2005
35Hottes Dieter (GER)2184Unzicker Wolfgang...24330-142 ≣E47Ch BRD
21Pachman Ludek (GER)2278Martin Pedro (ARG)20210-141 ≣E11Ch Club Argentino
113Zimak Karel (CZE)1996Postupa Martin (CZE)19760-114 ≣D35Ch Czech Republic...26 Feb 2012
38Bertholdt DieterCsulits Anton (GER)21631-047 ≣E21Ch DDR
74Cvetkovic Srdjan ...2406Gipslis Aivars (LAT)24290-128 ≣E41Ch Europe (team)
94Medina Fontes Ser...2147Sapienza Julian (...22710-130 ≣A40Ch FAOGBA (final)
15Herrmann Ludwig (...Unzicker Wolfgang...24330-132 ≣E41Ch Germany
42Portisch Ferenc (...2342Haag Ervin (HUN)22840-141 ≣E41Ch Hungary
34Beggi Pierluigi (...2122Bonfioli Marco1-036 ≣E40Ch Italy18 Aug 1960
3Solntsev Yury (RUS)Lilienthal Andor ...23850-136 ≣E40Ch Moscow
2Ravinsky Grigory ...Ragozin Viachesla...0-140 ≣A46Ch Moscow
59RoosBohm Hans (NED)23171-026 ≣E47Ch Netherlands (t...
84Radzikowska Kryst...2013Maziarka H1-040D30Ch Poland (w)
107Zamalova RamilyaKaravaeva Nadezda...19791-043 ≣E21Ch PriFO (w)06 Jan 2010
89Boix CatalinaDiaz Aranzazu1-025 ≣D30Ch Spain (w)
92Matsuura Everaldo...2400Steinhoff Igor Mu...22261-023 ≣E10Ch State Sao Paulo
101Tochilkin MikhailLebedev Anton0-133 ≣D35Ch SZFO (juniors)...
111Firat Deniz (TUR)1632Cam Esra1-028 ≣D30Ch Turkey (w)29 Jan 2012
8Ragozin Viachesla...Smyslov Vassily (...24940-141 ≣E47Ch URS
10Boleslavsky Isaac...2560Averbakh Yuri L (...24451-032 ≣E47Ch URS
41Furman Semen (RUS)2550Polugaevsky Lev A...25850-141 ≣E41Ch URS
6Taimanov Mark E (...2386Tolush Alexander ...0-137 ≣E47Ch URS
4Levenfish Grigori...Bondarevsky Igor ...1-034 ≣E47Ch URS
5Levenfish Grigori...Taimanov Mark E (...23861-040 ≣E21Ch URS
32Tal Mikhail N (LAT)2520Tolush Alexander ...1-029 ≣E41Ch URS
44Liberzon Vladimir...2410Polugaevsky Lev A...25850-133 ≣E41Ch URS
13GusevRagozin Viachesla...1-042 ≣E10Ch URS (1/2 final)
9Tolush Alexander ...Lisitsyn Georgy (...1-043 ≣E41Ch URS (1/2 final)
30Antoshin Vladimir...2250Estrin Yakov B (RUS)24501-024 ≣E41Ch URS (1/2 final)
11Furman Semen (RUS)2550Taimanov Mark E (...23861-043 ≣E47Ch URS (1/2 final)
12Alatortsev Vladim...Tolush Alexander ...1-022 ≣E41Ch URS (1/2 final)
47Furman Semen (RUS)2550Butnorius Algiman...23881-032 ≣E47Ch URS (swiss)
48Savon Vladimir A ...2443Rumiancev Boris (...21571-041 ≣E41Ch URS (swiss)
62ReimanRomanishin Oleg M...25371-038 ≣E41Ch URS (team)
61ReimanKarpov Anatoly (RUS)26170-137 ≣E41Ch URS (team)
60Boleslavsky Isaac...2560Peterson Andrey (...1-043 ≣E41Ch URS (team)
37RuggieriTrinidad V1-028 ≣E46Ch Uruguay (1/2 f...
69Reshevsky Samuel ...2430Zuckerman Bernard...24551-041 ≣E47Ch USA
52Jansen CDWRittner Horst0-128 ≣E41Ch World (corr.)
109Krejci Jan (CZE)1719Dusthageer Ibrahi...21881-045 ≣E47Ch World (juniors...04 Aug 2011
20Jorgensen Vagn RauheVan Hoorne1-050 ≣E41Ch World (juniors...
58Korchnoi Viktor (...2556Tal Mikhail N (LAT)25201-038 ≣A17Ch World (match) ...
96Niebling Ferdinan...2128Zakhvatov Vladimi...22970-139 ≣E41Ch World (seniors)23 Oct 2002
23Rabar Braslav (YUG)Milic Borislav (YUG)1-035 ≣E47Ch Yugoslavia
78Ivancevic RStankovic Marija ...22640-117 ≣E47corr.
77Rathmann HFechner Jurgen0-131 ≣E47corr.
82Giertz AGauba R1-042 ≣E47corr.
68LerchLangeweg Kick (NED)23090-131 ≣E41Cup Clare Benedict03 May 1968
106Vitiugov Nikita (...2681Gashimov Vugar (AZE)27400-143 ≣E47Cup European Club06 Oct 2009
22Wexler Bernardo (...Szabo Laszlo (HUN)19030-134 ≣E47It
72Damjanovic Mato (...2303Barczay Laszlo (HUN)23811-047 ≣E41It
45Portisch Lajos (HUN)2523Lehmann Heinz G (...22851-039 ≣E47It
1Johner Paul F (SUI)Staehelin Adolf (...1-042 ≣E47It
31Ljungquist Lennar...2250Ragozin Viachesla...0-143 ≣E47It
70Van Baarle C John...2212Nehmert Ulrich (GER)23561-022 ≣E47It22 Sep 1968
16Ivkov Borislav (SRB)2416Pirc Vasja (YUG)0-136 ≣E47It
17Wade Robert G (ENG)2148Unzicker Wolfgang...24331-028 ≣E41It
18Alvarez Jose_ (CUB)2368Najdorf Miguel (POL)24450-140 ≣E47It
24Korchnoi Viktor (...2556Darga Klaus (GER)24531-038 ≣E47It
26Jezek Jaroslav (CZE)2235Balanel Ion (ROM)1-047 ≣E41It
36Ziewitz HansSkold Kristian (SWE)23400-137 ≣E47It
39Ortega Ruiz Jose ...2266Alvarez JL1-040 ≣A17It
54Langeweg Kick (NED)2309Timman Jan H (NED)25551-040 ≣A17It
57Zinser Sylvain (FRA)2295Smyslov Vassily (...24940-134 ≣E46It
63Wade Robert G (ENG)2148Damjanovic Mato (...23030-141 ≣E41It
81Petrosian Tigran ...2645Debarnot Roberto ...23801-043 ≣E41It
88Lyrberg Patrik (SWE)2405Koskela Niina (FIN)21981-030 ≣E40It \
50Kondratiev Pavel ...Barstatis Reinhar...22401-038 ≣E41It \
49Bilek Istvan (HUN)2375Smyslov Vassily (...24940-132 ≣E41It \
66Portisch Lajos (HUN)2523Langeweg Kick (NED)23091-045 ≣E41It \
90Remman Frank (NOR)1922Hemmingsen John1-045 ≣A46It \
51Bouwmeester Hans ...2343Lengyel Levente (...22931-027 ≣E41It \
85Portisch Ferenc (...2405Barlov Dragan (SRB)24401-039 ≣E41It (b)
104Klimov Sergey (RUS)2521Miezis Normunds (...25571-034 ≣E41It (cat.10)17 Aug 2008
99D'apa Matteo (ITA)1973Giretti-Kanev Jas...21820-135 ≣E47It (open)06 Dec 2004
115Sandipan Chanda (...2618Tvarijonas Povila...23241-030 ≣E47It (open)22 Jul 2012
116Martinez Paipa He...1940Cardozo Stid Jafhar1-013 ≣A46It (open)
86Dereviagin Vladis...2320Song Paul (USA)20661-042 ≣E47It (open)
87Dang Quoc ThangWatkins J1-027 ≣D30It (open)
98Arboscelli Gregor...1907Giretti-Kanev Jas...21820-147 ≣E47It (open)05 Dec 2004
114Cvitan Ognjen (CRO)2538Fucak Emilijo (CRO)22131-032 ≣A40It (open) (active)22 Jul 2012
14Lilienthal Andor ...2385Ragozin Viacheslav1-038 ≣E47Match
7Ragozin Viachesla...Szabo Laszlo (HUN)19030-141 ≣E47Match \
91Shabalov Alexande...2645Bezold Michael (GER)24901-036 ≣E41Match \
33Dely Peter (HUN)2391Florian Tibor (HUN)1-016 ≣A13Memorial Asztalos
110Vinzoni Andrea (ITA)2097Giretti-Kanev Jas...21990-119 ≣E47Memorial Crespi (...08 Dec 2011
25Neukirch WSchafer1-031 ≣E41Memorial Dyckhoff...
53Donner Jan-Hein (...2430Damjanovic Mato (...23030-136 ≣E41Memorial J.Capabl...