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Nimzo-Indian, 4.e3, Main line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nf3 d5 6. Bd3 c5 7. 0-0 Nc6 8. a3 Bxc3+ 9. bxc3 dxc4

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
758Zwirs Nico (NED)2173Leenhouts Koen (NED)23840-134 ≣E11It (open)07 Aug 2012
180ZverevicMarkovic Igor (CRO)22070-140 ≣E41Tournament (corr.)
514Zuehlke Burkhard ...2173Ertl Rolf21601-034 ≣E47Bayern Regionalli...
334Zsinka Laszlo (HUN)2286Cladouras Panagio...23701-041 ≣E47It
533Zolotov Bogdan (RUS)2207Chuiko Alexander ...24130-141 ≣E40Ch Tula Region (o...
700Zilka Stepan (CZE)2479Bugalski Michal (...22401-033 ≣E47It (open)08 Aug 2010
568Zilberstein Dmitr...2379Rowley Robert (USA)22821-032 ≣E47It \
567Zilberstein Dmitr...2379Del Pilar Reynald...23061-033 ≣E41It \
466Zilberman Yaacov ...2560Tsesarsky Ilya (ISR)24451-030 ≣E41Tournament
688Zilberman Yaacov ...2439Lerner Konstantin...25490-133 ≣E47Memorial L.Slutsk...19 Dec 2009
133Zilber Israel (USA)2400Roizman Michael (...21941-048 ≣E41Ch URS (team)
702Zhukova Natalia (...2499Koneru Humpy (IND)25931-047 ≣D31Ch World (blitz) ...18 Sep 2010
608Zhao Zong-Yuan (AUS)2455Van Riemsdijk Her...23811-022 ≣A05It (open)22 Jan 2006
653Zavadil Michal (CZE)2057Narayanan Srinath...24120-122 ≣E41It (cat.1) \05 Jul 2008
583Zakharchenko Arno...2273Borsuk Konstantin...22521-039 ≣E47Ch Kiev21 Jan 2005
667Yurkov Alexey (UKR)2163Mazurchak Bogdan ...21870-139 ≣E47Ch Ukraine (junio...14 Feb 2009
259Yrjonen MarkkuMolarius Reijo (FIN)1-036 ≣E41?
396Yepez Olavo (ECU)2305Narciso Dublan Ma...23000-123 ≣E40It (open)
81Yepez Olavo (ECU)2305Blatny Frantisek ...21120-123 ≣E41Ch World (team) (...
3Wood GabrielMitchell Graham1-028 ≣E41Ch World (corr.)
719Wojtaszek Radosla...2704Sasikiran Krishna...26890-140 ≣E47It (cat.18)17 May 2011
378Winiwarter Felix ...2176Unzicker Wolfgang...24500-149 ≣E47Ch World (seniors)
194Wildt VolkerLederer G0-120 ≣A40corr.
371Wiederkehr WMold C1-028 ≣E47corr.
56Wexler FranciscoNajdorf Miguel (POL)24450-143 ≣A17It
544Westermayer Johan...1802Baumegger Siegfri...23500-132 ≣E47It (open)
424Weindl Alfred (GER)2350Joachim Sven (GER)23801-043 ≣D31It (open)
255Webb Simon (ENG)2420Boehlig Heinz Dr ...22371-049 ≣E47It \04 Jun 1978
453Wabschke AlfredHenrich Thomas (GER)22221-026 ≣E47VL1 1996/97
7Vukovic Sava (YUG)Rabar Braslav (YUG)0-123 ≣E41Ch Yugoslavia
8Vukovic Sava (YUG)Rabar Braslav (YUG)0-123 ≣E41Ch Yugoslavia
449Voutilainen HannuIrvin Jimmy0-135 ≣E47?
330Vogel Robert (GER)2256Waldow Frank1-034 ≣E41Bundesliga 1987/88
48Vladimirov Boris ...2340Lisitsyn Georgy (...0-133 ≣E41Ch URS (1/2 final)
185Visier Segovia Fe...2233Medina-Garcia Ant...22531-042 ≣E41?
576Verzhansky Alexan...2327Flyagin Dmitriy (...1-035 ≣E41Ch Russia (junior...
712Verko Tatiana (KAZ)2104Kovanova Baira (RUS)23691-026 ≣E47It (open) (w)
451Veenstra HylkeVan Hassel Rene0-135 ≣E47Ch Netherlands (t...
343Veenhuijzen RobertVan Buuren J1-043 ≣E46corr.
578Vdovichenko Vladi...2219Kucherenko Daniil...23130-135 ≣E46Ch Ukraine (team)20 May 2004
660Vazquez Renier (ESP)2530Vassallo Mauricio...24181-041 ≣E47It (open)24 Aug 2008
124Varnusz Egon (HUN)2345Flesch Janos0-142 ≣E46Ch Hungary
298Van Meggelen AHoffmann Gerfried0-133 ≣E46Europe Tournament...
606Van der Werf RVermeulen F0-129 ≣E10It (open)
447Van Den Bergh Jan...2068Bjarnason Saevar ...22850-135 ≣E11It (open)
75Van Den Berg Care...2410Kramer Haije J (NED)23301-030 ≣E47Ch Netherlands
575Van Buskirk Charl...2293Del Pilar Reynald...23061-037 ≣E41It (open)15 Feb 2004
509Van Beers Eddy (BEL)2346Kolev Atanas (BUL)25820-143 ≣E47Olympiad
459Valden Petros (GRE)2243Tzoumbas Anastasi...23800-141 ≣E41Ch Greece (team)
21Vaitonis Paul (LTH)Anderson Frank R ...0-138 ≣E46Ch Canada
434Vaisser Anatoly (...2555Petursson Margeir...25651-026 ≣E47It (open)
33Uusi Gunnar (EST)2410Levenfish Grigori...1-028 ≣E41Ch Moscow
462Usachyi Vladimir ...2245Baklan Vladimir (...25700-130 ≣E41It (open)
733Urkedal Frode (NOR)2447Tari Aryan (NOR)22241-029 ≣E47It (open)02 Oct 2011
121Ujtelsky Maximili...2295Kramer Haije J (NED)23301-040 ≣A17Olympiad
233Uimonen Matti (FIN)2098Lampinen Juha1-032 ≣E47?
108Uhlmann Wolfgang ...2379Lokvenc Josef (AUT)1-040 ≣E47It
80Uhlmann Wolfgang ...2379Szabo Laszlo (HUN)19030-131 ≣E47Zt
60Uhlmann Wolfgang ...2434Olafsson Fridrik ...24340-130 ≣A17Olympiad10 Sep 1956
718Tyn Ondrej1902Pavelek Karel (CZE)21550-134E21Czech League 2010...03 Apr 2011
388Tsevremes Ioannis...1955Tolnai Tibor (HUN)24950-133 ≣E47It (open)
62Tserendagva D (MGL)Reissmann Paul (PRO)1-030 ≣E40Olympiad12 Sep 1956
132Trmal Jaroslav (CZE)2184Fabian Jaroslav (...21921-038 ≣E47Ch Czechoslovakia
125Trmal Jaroslav (CZE)2184Altshul M1-035 ≣E47Ch Czechoslovakia
747Tovmasian Vardges...2420Soltanici Ruslan ...23970-142 ≣E47Memorial V.Naboko...25 Apr 2012
217TothJavelle Gabriel1-037 ≣E47It (cat.6)
14Tolush Alexander ...Troianescu Octav ...23301-037 ≣E41It
744Timofeev Artyom (...2659Grandelius Nils (...25451-046 ≣E47Ch Europe28 Mar 2012
444Tikkanen Kari (FIN)2265Osterman Georg (FIN)22811-048 ≣E47?
120Thorbergsson Frey...2340Humerez C0-132 ≣E41Olympiad
64Thorbergsson Frey...2340Catozzi Henry (FRA)1-042 ≣E47Olympiad20 Sep 1956
404Thibodeau ChrisRyan R11-010 ≣A40It \
207Thapper RolandZlebcik L0-149 ≣E47Ch Europe (team) ...
187Teschner Rudolf (...2295Rossolimo Nichola...24500-140 ≣E47It
237Tarjan James E (USA)2490Padevsky Nikola (...23551-030 ≣E41It
137Tanin SRausch Wilfried (...22451-029 ≣E41corr.
61Taimanov Mark Ye....2387Darga Klaus Vikto...24531-031 ≣A17Olympiad12 Sep 1956
188Taimanov Mark E (...2386Platonov Igor V (...24301-037 ≣E47Ch URS
52Taimanov Mark E (...2386Darga Klaus (GER)24531-027 ≣A17It
25Taimanov Mark E (...2386Euwe Max (NED)0-141 ≣E41Tournament (candi...
72Taimanov Mark E (...2386Nedeljkovic Sreck...21881-034 ≣A17Match \
71Taimanov Mark E (...2386Nedeljkovic Sreck...21881-034 ≣A17Match \
227Taimanov Mark E (...2580Zaichik Gennadi (...24571-039 ≣E21Olympiad URS
74Taimanov Mark E (...2386Antoshin Vladimir...22501-041 ≣E41Ch URS
633Tadic Branko (SRB)2484Ilincic Zlatko (SRB)25450-141 ≣E47Ch Bosnia & Herze...10 Jun 2007
30Szabo Laszlo (HUN)1903Pogats Jozsef (HUN)22301-034 ≣E41Ch Hungary
35Szabo Laszlo (HUN)1903Sliwa Bogdan (POL)22351-028 ≣E47Zt
164Szabo Laszlo (HUN)1903Matanovic Aleksan...24901-033 ≣E41Match \
236Sydor Andrzej (POL)2325Pinkas Karol (POL)23201-045 ≣E41It (b)
171Sychev AVlansky P1-049 ≣E47Ch URS (corr.)
229Svensson Gert (SWE)2215Bengtsson Bo (SWE)23000-138 ≣E47Ch Sweden
490Sturua Zurab (GEO)2602Tiviakov Sergei (...26111-045 ≣E47Cup European Club...
412Stornelli Vincenz...2175Hoffmann Joachim1-046 ≣E47?
427Storkebaum Karl H...Bockius Albert (GER)21621-034 ≣E46Memorial Weber (o...
428Storkebaum Karl H...Cors Heinz-Friedr...19350-137 ≣E41Memorial Weber (o...
202Steiner Josef (AUT)2116Yudovich Mikhail ...1-033 ≣E41corr.
208Steiner Josef (AUT)2116Kauranen Risto0-130 ≣E47It (cat.7)
648Stegariu Vlad-Ionut1937Frusescu Dorian-C...1-041 ≣E40Ch Romania (juniors)12 Apr 2008
402Stasinos Panayoti...2155Koen Maja (BUL)21050-131 ≣E46It (open)
305Spraggett Kevin (...2540Hartman Brian (CAN)22301-044 ≣A13Ch Canada