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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
59Mileika JanisKoblencs Aleksandrs0-134 ≣E20Ch Latvia
58Tschater BZastrow H0-147 ≣E20Ch BRD (corr.)
57Tolush Alexander ...Kostro Jerzy (POL)23051-030 ≣E20It
56Martius OttokarUnzicker Wolfgang...24330-139 ≣E20Tournament
55Luik Helmuth (EST)2209Klasups Karlis0-129 ≣E46Match \
54ZubietaHaygarth Michael ...23750-141 ≣E47Olympiad
53Diez Del Corral J...2415Rodriguez Gonzale...23551-044 ≣E20Olympiad
52Damjanovic Mato (...2303Lengyel Levente (...22930-143 ≣E20Olympiad
51Rotstein Efim (GER)2341Lazarev Efim M (UKR)24280-132 ≣E47Ch Ukraine
50Heuer Valter (EST)2285Kliavinsh Y (LAT)1-034 ≣E20Tournament (Cand....
49Weise DietrichNiephaus Walter (...1-028 ≣E46Ch BRD
48Cherepkov Alexand...2395Korchnoi Viktor (...25560-130 ≣E41Ch URS
47Szabo Laszlo (HUN)1903Portisch Lajos (HUN)25230-141 ≣E41Ch Hungary (match)
46Crepinsek Ljubomi...2305Gilbertson D1-032 ≣E46Memorial Stevenson
45Popov Vladilen (BUL)2260Filipov F (BUL)1-045 ≣E41Ch Bulgaria
44Polugaevsky Lev A...2585Furman Semyen A (...0-122 ≣E41Tournament
43Pasman MarksKlavins Janis1-047 ≣E41Ch Riga
42Nikolaevsky Yuri ...2315Zurakhov Vladlen ...24151-046 ≣E20Ch Ukraine
41Ciocaltea Viktor ...2420Geller Efim P (RUS)24550-129 ≣E41Memorial Przepiorka
40Rubio Aguado Fern...Letelier Rene (CHI)21510-141 ≣E20Zt
39Rubio Aguado Fern...Cuellar Gacharna ...22800-132 ≣E20It
38Hodakowsky GeorgHeinrich1-041 ≣E46Ch BRD
37Botvinnik Mikhail...2307Averbakh Yuri L (...24451-024 ≣E47Game (training)
36Reshevsky Samuel ...2430Hearst Eliot Sanford1-037 ≣A17Memorial Rosenwald
35Szabo Laszlo (HUN)1903Smyslov Vassily (...24940-136 ≣A15Memorial A.Alekhine
34Dittmann SieghardKholmov Ratmir D ...24320-125 ≣E47It
33Owens BenjaminSiegel Merrick0-135 ≣E46Ch Manhattan Ches...
32Bondarevsky Igor ...Furman Semen (RUS)25500-142 ≣E41Ch URS (1/2 final)
31LubenskyLazarev Efim M (UKR)24280-135 ≣E41Ch Ukraine
30Goode RoyalHorberg Beng Eric1-031 ≣E20Ch Sweden (match)
29Estrada Degrandi ...Shocron Ruben (USA)22590-143 ≣E47Zt
28Geller Efim P (RUS)2455Ragozin Viachesla...1-035 ≣A17Ch URS
27Geller Efim P (RUS)2455Furman Semen (RUS)25501-043 ≣E20Ch URS
26Kazic Bozidar (YUG)Timet D1-033 ≣E41Ch Yugoslavia (co...
25Maderna Carlos H ...Dodero Emilio (ARG)1-029 ≣E20Ch Argentina
24Voiculescu Paul (...2282Kholmov Ratmir D ...24320-131 ≣E46It
23Raizman Maurice2200De Greif Boris (COL)22551-032 ≣E41Olympiad
22Donner Jan-Hein (...2430Matanovic Aleksan...24900-143 ≣E47It
21Doda Zbigniew (POL)2345Brzozka Stefan (POL)1-027 ≣E20Ch Poland
20Ciejka TadeuszSzymanski Aleksander0-126 ≣E46Ch Poland
19Kotov Alexander A...2500Zografakis Aristidis1-020 ≣E47Olympiad
18Mukhitdinov Mamad...Petrosian Tigran ...25800-149 ≣E47Match
17Szilagyi Gyorgy (...2370Szabo Stefan1-046 ≣E20It
16Mueller Klaus-Uwe...2320Schlieder Rolf1-039 ≣E41Ch DDR
15Steiner Hermann (...Tramoyeres P1-025E20It
14Stahlberg Gideon ...Broadbent Reginal...1-041 ≣E47It
13Szabo Laszlo (HUN)1903Horne DM1-030 ≣E47It
12Nevole Vladimir (...2051Ryppel0-133 ≣E20It (seniors)
11Bronstein David I...2432Najdorf Miguel (POL)24451-021 ≣E20Tournament (candi...
10FlondorSzabo Sandor (HUN)20600-131 ≣E41Ch Romania
9De Freitas Marcio...Oliveira Washington1-027 ≣E41Ch Brazil
8Botvinnik Mikhail...2630Reshevsky Samuel ...24300-142 ≣E41Ch World (match-t...
7Denker Arnold S (...2293Smyslov Vassily (...24940-143 ≣E47Match \
6Ivanov Pavel (RUS)2002Piskov Kamen0-129 ≣E41Ch Bulgaria
5Schmidt Paul F (EST)Bogoljubow Efim D...0-131 ≣E47It
4Mikenas Vladas I ...2405Vulfson V Sr1-031 ≣E20It
3Cruz Walter Oswal...Trompowsky Octavio1-036 ≣E20Ch Brazil (match)
2Bondarevsky Igor ...Botvinnik Mikhail...26301-038 ≣E20Ch URS
1Enevoldsen Jens (...2350Andersen Erik Sr1-026 ≣E20