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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
1Enevoldsen Jens (...2350Andersen Erik Sr1-026 ≣E20
2Bondarevsky Igor ...Botvinnik Mikhail...26301-038 ≣E20Ch URS
3Cruz Walter Oswal...Trompowsky Octavio1-036 ≣E20Ch Brazil (match)
4Mikenas Vladas I ...2405Vulfson V Sr1-031 ≣E20It
5Schmidt Paul F (EST)Bogoljubow Efim D...0-131 ≣E47It
6Ivanov Pavel (RUS)2002Piskov Kamen0-129 ≣E41Ch Bulgaria
7Denker Arnold S (...2293Smyslov Vassily (...24940-143 ≣E47Match \
8Botvinnik Mikhail...2630Reshevsky Samuel ...24300-142 ≣E41Ch World (match-t...
9De Freitas Marcio...Oliveira Washington1-027 ≣E41Ch Brazil
10FlondorSzabo Sandor (HUN)20600-131 ≣E41Ch Romania
11Bronstein David I...2432Najdorf Miguel (POL)24451-021 ≣E20Tournament (candi...
12Nevole Vladimir (...2051Ryppel0-133 ≣E20It (seniors)
13Szabo Laszlo (HUN)1903Horne DM1-030 ≣E47It
14Stahlberg Gideon ...Broadbent Reginal...1-041 ≣E47It
15Steiner Hermann (...Tramoyeres P1-025E20It
16Mueller Klaus-Uwe...2320Schlieder Rolf1-039 ≣E41Ch DDR
17Szilagyi Gyorgy (...2370Szabo Stefan1-046 ≣E20It
18Mukhitdinov Mamad...Petrosian Tigran ...25800-149 ≣E47Match
19Kotov Alexander A...2500Zografakis Aristidis1-020 ≣E47Olympiad
20Ciejka TadeuszSzymanski Aleksander0-126 ≣E46Ch Poland
21Doda Zbigniew (POL)2345Brzozka Stefan (POL)1-027 ≣E20Ch Poland
22Donner Jan-Hein (...2430Matanovic Aleksan...24900-143 ≣E47It
23Raizman Maurice2200De Greif Boris (COL)22551-032 ≣E41Olympiad
24Voiculescu Paul (...2282Kholmov Ratmir D ...24320-131 ≣E46It
25Maderna Carlos H ...Dodero Emilio (ARG)1-029 ≣E20Ch Argentina
26Kazic Bozidar (YUG)Timet D1-033 ≣E41Ch Yugoslavia (co...
27Geller Efim P (RUS)2455Furman Semen (RUS)25501-043 ≣E20Ch URS
28Geller Efim P (RUS)2455Ragozin Viachesla...1-035 ≣A17Ch URS
29Estrada Degrandi ...Shocron Ruben (USA)22590-143 ≣E47Zt
30Goode RoyalHorberg Beng Eric1-031 ≣E20Ch Sweden (match)
31LubenskyLazarev Efim M (UKR)24280-135 ≣E41Ch Ukraine
32Bondarevsky Igor ...Furman Semen (RUS)25500-142 ≣E41Ch URS (1/2 final)
33Owens BenjaminSiegel Merrick0-135 ≣E46Ch Manhattan Ches...
34Dittmann SieghardKholmov Ratmir D ...24320-125 ≣E47It
35Szabo Laszlo (HUN)1903Smyslov Vassily (...24940-136 ≣A15Memorial A.Alekhine
36Reshevsky Samuel ...2430Hearst Eliot Sanford1-037 ≣A17Memorial Rosenwald
37Botvinnik Mikhail...2307Averbakh Yuri L (...24451-024 ≣E47Game (training)
38Hodakowsky GeorgHeinrich1-041 ≣E46Ch BRD
39Rubio Aguado Fern...Cuellar Gacharna ...22800-132 ≣E20It
40Rubio Aguado Fern...Letelier Rene (CHI)21510-141 ≣E20Zt
41Ciocaltea Viktor ...2420Geller Efim P (RUS)24550-129 ≣E41Memorial Przepiorka
42Nikolaevsky Yuri ...2315Zurakhov Vladlen ...24151-046 ≣E20Ch Ukraine
43Pasman MarksKlavins Janis1-047 ≣E41Ch Riga
44Polugaevsky Lev A...2585Furman Semyen A (...0-122 ≣E41Tournament
45Popov Vladilen (BUL)2260Filipov F (BUL)1-045 ≣E41Ch Bulgaria
46Crepinsek Ljubomi...2305Gilbertson D1-032 ≣E46Memorial Stevenson
47Szabo Laszlo (HUN)1903Portisch Lajos (HUN)25230-141 ≣E41Ch Hungary (match)
48Cherepkov Alexand...2395Korchnoi Viktor (...25560-130 ≣E41Ch URS
49Weise DietrichNiephaus Walter (...1-028 ≣E46Ch BRD
50Heuer Valter (EST)2285Kliavinsh Y (LAT)1-034 ≣E20Tournament (Cand....
51Rotstein Efim (GER)2341Lazarev Efim M (UKR)24280-132 ≣E47Ch Ukraine
52Damjanovic Mato (...2303Lengyel Levente (...22930-143 ≣E20Olympiad
53Diez Del Corral J...2415Rodriguez Gonzale...23551-044 ≣E20Olympiad
54ZubietaHaygarth Michael ...23750-141 ≣E47Olympiad
55Luik Helmuth (EST)2209Klasups Karlis0-129 ≣E46Match \
56Martius OttokarUnzicker Wolfgang...24330-139 ≣E20Tournament
57Tolush Alexander ...Kostro Jerzy (POL)23051-030 ≣E20It
58Tschater BZastrow H0-147 ≣E20Ch BRD (corr.)
59Mileika JanisKoblencs Aleksandrs0-134 ≣E20Ch Latvia
60Enigru (TUN)Kolarov Atanas S ...24150-135 ≣E20Olympiad
61Kristinsson (ISL)Luginbuhl Erwin (...23701-033 ≣E20Olympiad
62Spassky Boris V (...2548Bykov Valery (RUS)23011-040 ≣E20Tournament (team)
63Wehnert LutzBruemmer Ullrich1-041 ≣E20Ch DDR
64Pachman Ludek (GER)2278Porath Yosef (ISR)23401-022 ≣E41Olympiad
65Piket Joop J (NED)2125Flesch Janos0-118 ≣E20It \
66Romani Elio (ITA)2275Greiveldinger E0-138 ≣E20Olympiad
67Littlewood Norman2328Gheorghiu Florin ...23830-119 ≣E20It
68Littlewood Norman2328Spassky Boris V (...25480-129 ≣E20It
69Kaminik Aleksanda...2168Kirilov Valentins...23390-129 ≣E20Ch URS (team)
70GoetgeluckSpassov Liuben (BUL)23670-149 ≣E20Ch World (team) (...
71Aloni IsaacMatanovic Aleksan...24900-148 ≣E41It
72Chistiakov Alexan...Zelevinsky V0-141 ≣E20Tournament
73Neamtu Serban-Con...2278Papapostolou Chri...20731-031 ≣E47Tournament (team)
74Littlewood Norman2328Hilton CG1-032 ≣E20Ch Great Britain
75Porreca Giorgio (...Dalla Villa Corrado1-027 ≣E20?
76Kazilaris Nikolao...2181Pritchett Craig W...23431-035 ≣E20Ch World (team) (...21 Jul 1968
77Nevole Vladimir (...2051Janata Michael (CSR)24000-144 ≣E20Ch Czechoslovakia...
78Lehmann Klaus (GER)2349Janata Michael (CSR)24000-137 ≣E46Match \
79Knaak Rainer (GER)2482Sydor Andrzej (POL)23250-132 ≣E20It
80Aijala Jouko (FIN)2133Damiron Dickson A1-025 ≣E41Ch World (team) (...04 Aug 1969
81Acosta Mariano (ARG)2000Hernandez Roman (...23751-046 ≣E20Ch World (team) (...08 Aug 1969
82Toth Bela (ITA)2345Balaskas Panayoti...20901-042 ≣E20Ch World (team) (...15 Aug 1969
83Yepez Trotzky (ECU)2180Moraza Manuel (PUR)21870-143 ≣E41Ch Pan-American
84Oestreich ReinhardUpmann H1-024 ≣E20Ch OWL
85Lim Kok Ann Dr (SIN)2038Malagon Alberto22001-039 ≣E20Olympiad
86Brilla Banfalvi S...Huuskonen V (FIN)1-042 ≣E20?
87Shereshevski Mikh...2475Yuferov Sergey N ...24121-047 ≣E46Memorial A.Sokolsky
88Scholze JReschke Heinz0-130 ≣E47corr.
89Razzaghi ABehroozi Ev1-023 ≣E41Ch Iran
90Carvajal A2115Van Riemsdijk Her...23451-037 ≣A40Zt
91Choon Foo LC2200Rossolimo Nichola...24500-133 ≣E47Olympiad
92Baturinsky Victor...Hansen1-042 ≣E41Ch Europe (corr.)
93Vinke Dietmar (FIN)2218Busch Raimund (GER)23200-144 ≣E20Ch OWL
94Doubleday WAmos Bruce M (CAN)23550-127 ≣E47Ch Canada
95Ivanov Igor V (CAN)2424Jussupow Artur (GER)24500-150 ≣E41Ch URS (1 liga)
96Szmacinska Grazyn...2181Jackson Sheila (ENG)21621-038 ≣E47Olympiad
97Clarke Thomas (IRL)2137Keeshan Michael1-023 ≣E41It (open)
98Flockert Ruediger...2140Kreie Guenther (GER)19391-039 ≣E20Ch OWL
99WikmanBagnoli Paolo1-026 ≣E47Olympiad (corr.)
100Popovich Sviatosl...2233Abram Gary0-133 ≣E20World Tournament ...