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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
6Ivanov Pavel (RUS)2002Piskov Kamen0-129 ≣E41Ch Bulgaria
5Schmidt Paul F (EST)Bogoljubow Efim D...0-131 ≣E47It
252Hernando Rodrigo ...2285Sjodahl Pontus (SWE)24200-122 ≣E47It (open)
2Bondarevsky Igor ...Botvinnik Mikhail...26301-038 ≣E20Ch URS
187Aleksandrov Aleks...2618Savon Vladimir A ...24501-047 ≣E47Zt
34Dittmann SieghardKholmov Ratmir D ...24320-125 ≣E47It
163Whitt PEllis1-022 ≣E47corr.
162Oertle MirkoRoederer Kai (GER)22180-128 ≣E20It (open)
1Enevoldsen Jens (...2350Andersen Erik Sr1-026 ≣E20
11Bronstein David I...2432Najdorf Miguel (POL)24451-021 ≣E20Tournament (candi...
285Carrabeo Garcia M...2072Campora Daniel H ...25360-140 ≣E41It (open)
280Picazo Lopez Juan...2055Garcia Carbo Marc...23540-140 ≣E41Ch Spain (open)
198Ivanov Igor V (CAN)2424Browne Walter S (...25351-020 ≣E41It \
161Johansson Carl Fr...2192Wiedenkeller Mich...24730-133 ≣E47It (open)
315Zaiatz Elena (RUS)2400Khurtsidze Nino (...23990-150 ≣E47Ch Europe (w)
265Lucchi VAssmann Thomas (GER)23350-134 ≣E46It (open)
209Oei Hway Ik (NED)2235Van Den Doel Erik...23050-140 ≣E41It (open)
68Littlewood Norman2328Spassky Boris V (...25480-129 ≣E20It
314Pedersen Nicolai ...2466Sokolov Andrei (FRA)25911-032 ≣E46Bundesliga 2002/03
172Kadimova Ilaha (AZE)2314Prudnikova Svetla...23491-029 ≣E41Ch Europe (team)
3Cruz Walter Oswal...Trompowsky Octavio1-036 ≣E20Ch Brazil (match)
300Adams Nick A (USA)2197Shapiro Daniel E ...22891-021 ≣E41It (open) \
242Blasco Miguel (ESP)2241Pogorelov Ruslan ...24400-137 ≣E47It (open)
38Hodakowsky GeorgHeinrich1-041 ≣E46Ch BRD
8Botvinnik Mikhail...2630Reshevsky Samuel ...24300-142 ≣E41Ch World (match-t...
89Razzaghi ABehroozi Ev1-023 ≣E41Ch Iran
96Szmacinska Grazyn...2181Jackson Sheila (ENG)21621-038 ≣E47Olympiad
20Ciejka TadeuszSzymanski Aleksander0-126 ≣E46Ch Poland
249Valimamade Munir ...Casimiro Eduardo1-049 ≣E20Ch Portugal (team...
56Martius OttokarUnzicker Wolfgang...24330-139 ≣E20Tournament
62Spassky Boris V (...2548Bykov Valery (RUS)23011-040 ≣E20Tournament (team)
43Pasman MarksKlavins Janis1-047 ≣E41Ch Riga
215Guseinov Aidyn (AZE)2425Tunik Gennady (RUS)25150-141 ≣E41It (open) \
102Christiansen Larr...2505Rodriguez Ruben (...24151-033 ≣E47Izt (cat.12)
85Lim Kok Ann Dr (SIN)2038Malagon Alberto22001-039 ≣E20Olympiad
4Mikenas Vladas I ...2405Vulfson V Sr1-031 ≣E20It
22Donner Jan-Hein (...2430Matanovic Aleksan...24900-143 ≣E47It
24Voiculescu Paul (...2282Kholmov Ratmir D ...24320-131 ≣E46It
47Szabo Laszlo (HUN)1903Portisch Lajos (HUN)25230-141 ≣E41Ch Hungary (match)
227Lueckemann KlausWuttke Bodo17721-024 ≣E20It (open)
139Balashov Yuri S (...2540Karpman Vadim (UKR)24901-036 ≣E41Ch URS (qual)
283Halkias Stelios (...2519Khetsuriani Besar...24111-033 ≣E41It (open)
201Aarland Stein Ari...2250Fyllingen Roy Har...23300-138 ≣E20Ch Norway (team) ...
101Pliester Leon (NED)2300Taulbut Shaun M (...23760-138 ≣E41It (open)
40Rubio Aguado Fern...Letelier Rene (CHI)21510-141 ≣E20Zt
160Santos Carlos P (...2404Prakash G B (IND)23320-138 ≣E20Ch World (juniors...
111Ravikumar Vaidyan...2385Levitt Jonathan (...24201-038 ≣E20It (open) \
284Pugh Larry (USA)2059Nolan Gregory M0-147 ≣E20It \
116Muir Andrew J (SCO)2311Motwani Paul (SCO)24940-125 ≣E41Ch Scotland
107Moyse Nigel John ...2062Porubszki Georg (...19470-134 ≣E20It (open)
148Apaza HenryMoutousis Konstan...24280-129 ≣E20Ch World (juniors...
105Balashov Yuri S (...2545Gavrikov Viktor (...24851-026 ≣E41Ch URS (1 liga)
122Remlinger Larry (...2380Larsen Bent (DEN)25650-142E46It (open)
303Niklasson Christe...2375Barkhagen Jonas (...24580-132 ≣E20Ch Sweden (team) ...
66Romani Elio (ITA)2275Greiveldinger E0-138 ≣E20Olympiad
78Lehmann Klaus (GER)2349Janata Michael (CSR)24000-137 ≣E46Match \
181Ernrooth JArppi Heikki1-050 ≣E41Ch Finland (corr.)
138Vaisser Anatoly (...2530Timoshenko Georgy...25151-030 ≣E41?
155RemensbergerMilosevic0-124 ≣E47Bundesliga 1989/90
31LubenskyLazarev Efim M (UKR)24280-135 ≣E41Ch Ukraine
115Balashov Yuri S (...2510Novikov Igor A (USA)24651-042 ≣E41?
188Agrest Evgenij (SWE)2599Kiselev Sergey (RUS)24700-127 ≣E41It (a)
152Meira Wagner2086Goncalves Tasso19771-033 ≣E20Ch Brasiliense
71Aloni IsaacMatanovic Aleksan...24900-148 ≣E41It
130Vehi Bach Victor ...2385Campos Lopez Mari...23460-148 ≣E20?
110Steudtmann Christ...2268Tischbierek Raj (...24500-136 ≣E20Ch DDR
174Kluss Kai (GER)2150Lesiege Alexandre...23750-135 ≣E41Ch France (team)
58Tschater BZastrow H0-147 ≣E20Ch BRD (corr.)
253Ahonen PekkaHaapasalo Jukka-P...20840-150 ≣E41It (open)
301Miron Lucian-Cost...2131Popa Marian (ROM)20681-035 ≣E20It \
18Mukhitdinov Mamad...Petrosian Tigran ...25800-149 ≣E47Match
72Chistiakov Alexan...Zelevinsky V0-141 ≣E20Tournament
270Curi Gabriel (URU)2312Maiztegui L (URU)0-144 ≣E46Ch Uruguay
261Hupp FabricioDa Silva Eduardo ...0-131 ≣E41It \
269Pons Sastre Santi...2328Kolev Atanas (BUL)25820-135 ≣E20It (open)
41Ciocaltea Viktor ...2420Geller Efim P (RUS)24550-129 ≣E41Memorial Przepiorka
207Zaiatz Elena (RUS)2441Kayumov Dmitry D ...24411-038 ≣E41Memorial A.Zaitsev
61Kristinsson (ISL)Luginbuhl Erwin (...23701-033 ≣E20Olympiad
221Dauner KarlBarsov Alexei (UZB)24700-146 ≣E20It (open)
203Mazzei Alessandro...2190Sardo A1-043E41Ch Italy (juniors)
246Jussupow Artur (GER)2640Cvitan Ognjen (CRO)25251-048 ≣E41Zt
212Levit Roman (USA)2275Miller Ike S (USA)20611-030 ≣E41Ch USA (open)
307Markl Martin (GER)2230Schenk Andreas (GER)24940-131 ≣E20It (open)
240Lomineishvili Mai...2350Yakovich Yuri (RUS)26100-128 ≣E41Cup Russia (open)
295Agdestein Simen (...2578Jenni Florian (SUI)25161-028 ≣E20Ch ICC (blitz) (f...
49Weise DietrichNiephaus Walter (...1-028 ≣E46Ch BRD
231Metge J Nigel (NZL)2160Barlow Matthew (NZL)21701-037E46Ch New Zealand
98Flockert Ruediger...2140Kreie Guenther (GER)19391-039 ≣E20Ch OWL
17Szilagyi Gyorgy (...2370Szabo Stefan1-046 ≣E20It
97Clarke Thomas (IRL)2137Keeshan Michael1-023 ≣E41It (open)
45Popov Vladilen (BUL)2260Filipov F (BUL)1-045 ≣E41Ch Bulgaria
10FlondorSzabo Sandor (HUN)20600-131 ≣E41Ch Romania
54ZubietaHaygarth Michael ...23750-141 ≣E47Olympiad
91Choon Foo LC2200Rossolimo Nichola...24500-133 ≣E47Olympiad
77Nevole Vladimir (...2051Janata Michael (CSR)24000-144 ≣E20Ch Czechoslovakia...
254Jardi JSalov Valery (RUS)26700-123 ≣E41It (open) (active)
104Deze Anton (YUG)2405Rakic Tomislav (SRB)24300-144 ≣E20It (cat.7)
59Mileika JanisKoblencs Aleksandrs0-134 ≣E20Ch Latvia
133Vogel Robert (GER)2256Siegel Georg (GER)22731-025 ≣E20Bundesliga 1987/88
7Denker Arnold S (...2293Smyslov Vassily (...24940-143 ≣E47Match \