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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
1Johner Paul F (SUI)Staehelin Adolf (...1-042 ≣E47It
2Ravinsky Grigory ...Ragozin Viachesla...0-140 ≣A46Ch Moscow
3Solntsev Yury (RUS)Lilienthal Andor ...23850-136 ≣E40Ch Moscow
4Levenfish Grigori...Bondarevsky Igor ...1-034 ≣E47Ch URS
5Levenfish Grigori...Taimanov Mark E (...23861-040 ≣E21Ch URS
6Taimanov Mark E (...2386Tolush Alexander ...0-137 ≣E47Ch URS
7Ragozin Viachesla...Szabo Laszlo (HUN)19030-141 ≣E47Match \
8Ragozin Viachesla...Smyslov Vassily (...24940-141 ≣E47Ch URS
9Tolush Alexander ...Lisitsyn Georgy (...1-043 ≣E41Ch URS (1/2 final)
10Boleslavsky Isaac...2560Averbakh Yuri L (...24451-032 ≣E47Ch URS
11Furman Semen (RUS)2550Taimanov Mark E (...23861-043 ≣E47Ch URS (1/2 final)
12Alatortsev Vladim...Tolush Alexander ...1-022 ≣E41Ch URS (1/2 final)
13GusevRagozin Viachesla...1-042 ≣E10Ch URS (1/2 final)
14Lilienthal Andor ...2385Ragozin Viacheslav1-038 ≣E47Match
15Herrmann Ludwig (...Unzicker Wolfgang...24330-132 ≣E41Ch Germany
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
19Olafsson Fridrik ...2434Barcza Gedeon (HUN)24351-037 ≣E47Zt
20Jorgensen Vagn RauheVan Hoorne1-050 ≣E41Ch World (juniors...
21Pachman Ludek (GER)2278Martin Pedro (ARG)20210-141 ≣E11Ch Club Argentino
22Wexler Bernardo (...Szabo Laszlo (HUN)19030-134 ≣E47It
23Rabar Braslav (YUG)Milic Borislav (YUG)1-035 ≣E47Ch Yugoslavia
24Korchnoi Viktor (...2556Darga Klaus (GER)24531-038 ≣E47It
25Neukirch WSchafer1-031 ≣E41Memorial Dyckhoff...
26Jezek Jaroslav (CZE)2235Balanel Ion (ROM)1-047 ≣E41It
27Szabo Laszlo (HUN)1903Balanel Ion (ROM)1-027 ≣E41Olympiad10 Sep 1956
28Gligoric Svetozar...2447Padevsky Nikola B...23551-028 ≣E41Olympiad11 Sep 1956
29Boleslavsky Isaak...Sokolsky Alexey (...1-034 ≣E41Ch Belarus
30Antoshin Vladimir...2250Estrin Yakov B (RUS)24501-024 ≣E41Ch URS (1/2 final)
31Ljungquist Lennar...2250Ragozin Viachesla...0-143 ≣E47It
32Tal Mikhail N (LAT)2520Tolush Alexander ...1-029 ≣E41Ch URS
33Dely Peter (HUN)2391Florian Tibor (HUN)1-016 ≣A13Memorial Asztalos
34Beggi Pierluigi (...2122Bonfioli Marco1-036 ≣E40Ch Italy18 Aug 1960
35Hottes Dieter (GER)2184Unzicker Wolfgang...24330-142 ≣E47Ch BRD
36Ziewitz HansSkold Kristian (SWE)23400-137 ≣E47It
37RuggieriTrinidad V1-028 ≣E46Ch Uruguay (1/2 f...
38Bertholdt DieterCsulits Anton (GER)21631-047 ≣E21Ch DDR
39Ortega Ruiz Jose ...2266Alvarez JL1-040 ≣A17It
40Zatulovskaya Tati...2027Bain Mary1-049 ≣E47Olympiad (w)
41Furman Semen (RUS)2550Polugaevsky Lev A...25850-141 ≣E41Ch URS
42Portisch Ferenc (...2342Haag Ervin (HUN)22840-141 ≣E41Ch Hungary
43Olafsson Fridrik ...2434Ortega Rogelio1-047 ≣A13Olympiad
44Liberzon Vladimir...2410Polugaevsky Lev A...25850-133 ≣E41Ch URS
45Portisch Lajos (HUN)2523Lehmann Heinz G (...22851-039 ≣E47It
46Rodriguez Jorge L...2401Polugaevsky Lev A...25850-140 ≣E41Memorial J.Capabl...
47Furman Semen (RUS)2550Butnorius Algiman...23881-032 ≣E47Ch URS (swiss)
48Savon Vladimir A ...2443Rumiancev Boris (...21571-041 ≣E41Ch URS (swiss)
49Bilek Istvan (HUN)2375Smyslov Vassily (...24940-132 ≣E41It \
50Kondratiev Pavel ...Barstatis Reinhar...22401-038 ≣E41It \
51Bouwmeester Hans ...2343Lengyel Levente (...22931-027 ≣E41It \
52Jansen CDWRittner Horst0-128 ≣E41Ch World (corr.)
53Donner Jan-Hein (...2430Damjanovic Mato (...23030-136 ≣E41Memorial J.Capabl...
54Langeweg Kick (NED)2309Timman Jan H (NED)25551-040 ≣A17It
55Gligoric Svetozar...2447Yanofsky D A (CAN)24101-047 ≣E41Olympiad
56Rodriguez Ruben (...2445Polugaevsky Lev A...25850-141 ≣E41Olympiad
57Zinser Sylvain (FRA)2295Smyslov Vassily (...24940-134 ≣E46It
58Korchnoi Viktor (...2556Tal Mikhail N (LAT)25201-038 ≣A17Ch World (match) ...
59RoosBohm Hans (NED)23171-026 ≣E47Ch Netherlands (t...
60Boleslavsky Isaac...2560Peterson Andrey (...1-043 ≣E41Ch URS (team)
61ReimanKarpov Anatoly (RUS)26170-137 ≣E41Ch URS (team)
62ReimanRomanishin Oleg M...25371-038 ≣E41Ch URS (team)
63Wade Robert G (ENG)2148Damjanovic Mato (...23030-141 ≣E41It
64Donner Jan-Hein (...2430Damjanovic Mato (...23030-136 ≣E41?
65Donner Jan-Hein (...2430Lengyel Levente (...22930-136 ≣E41?
66Portisch Lajos (HUN)2523Langeweg Kick (NED)23091-045 ≣E41It \
67Gligoric Svetozar...2447Damjanovic Mato (...23031-040 ≣E41?
68LerchLangeweg Kick (NED)23090-131 ≣E41Cup Clare Benedict03 May 1968
69Reshevsky Samuel ...2430Zuckerman Bernard...24551-041 ≣E47Ch USA
70Van Baarle C John...2212Nehmert Ulrich (GER)23561-022 ≣E47It22 Sep 1968
71Idrovo Franklin (...2225Colon Romero Miguel0-140 ≣E21Zt
72Damjanovic Mato (...2303Barczay Laszlo (HUN)23811-047 ≣E41It
73Sarkilahti OsmoSjoman Seppo0-121 ≣E41?
74Cvetkovic Srdjan ...2406Gipslis Aivars (LAT)24290-128 ≣E41Ch Europe (team)
75Gligoric Svetozar...2600Andersson Ulf (SWE)25101-050 ≣E47?
76Lehtinen TimoKarjalainen Hannu1-021 ≣A40?
77Rathmann HFechner Jurgen0-131 ≣E47corr.
78Ivancevic RStankovic Marija ...22640-117 ≣E47corr.
79Vellonen PekkaTurunen Pekka (FIN)22460-136 ≣E47?
80Siltakorpi KariVuorinen Jarmo1-035 ≣E47?
81Petrosian Tigran ...2645Debarnot Roberto ...23801-043 ≣E41It
82Giertz AGauba R1-042 ≣E47corr.
83Vellonen PekkaPlank Gosta1-048 ≣A13?
84Radzikowska Kryst...2013Maziarka H1-040D30Ch Poland (w)
85Portisch Ferenc (...2405Barlov Dragan (SRB)24401-039 ≣E41It (b)
86Dereviagin Vladis...2320Song Paul (USA)20661-042 ≣E47It (open)
87Dang Quoc ThangWatkins J1-027 ≣D30It (open)
88Lyrberg Patrik (SWE)2405Koskela Niina (FIN)21981-030 ≣E40It \
89Boix CatalinaDiaz Aranzazu1-025 ≣D30Ch Spain (w)
90Remman Frank (NOR)1922Hemmingsen John1-045 ≣A46It \
91Shabalov Alexande...2645Bezold Michael (GER)24901-036 ≣E41Match \
92Matsuura Everaldo...2400Steinhoff Igor Mu...22261-023 ≣E10Ch State Sao Paulo
93Rapp Uwe (GER)2117Weber Klaus (GER)21840-137 ≣A05Oberliga Wurttemb...
94Medina Fontes Ser...2147Sapienza Julian (...22710-130 ≣A40Ch FAOGBA (final)
95Silhavik Antonin ...2100Svancara Petr (CZE)21650-136 ≣E47Moravian League 2...
96Niebling Ferdinan...2128Zakhvatov Vladimi...22970-139 ≣E41Ch World (seniors)23 Oct 2002
97Pecina Michal (CZE)2194Svancara Petr (CZE)22390-136 ≣E47Moravian League 2...
98Arboscelli Gregor...1907Giretti-Kanev Jas...21820-147 ≣E47It (open)05 Dec 2004
99D'apa Matteo (ITA)1973Giretti-Kanev Jas...21820-135 ≣E47It (open)06 Dec 2004
100Milos Gilberto (BRA)2620Lima Darcy (BRA)25291-035 ≣E47Ch Brazil17 Feb 2005