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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
515Albarran Gustavo ...2255Vazquez Maximilia...21311-050 ≣E47Ch Superior Torre...
103Geller Efim P (RUS)2455Osnos Viatcheslav...23841-050 ≣E47Ch URS (1/2 final)
594Brener Ilja (GER)2334Lettieri Giuseppe...22650-150 ≣E40Cup Mitropa25 May 2005
690Kashlinskaya Alin...2358Girya Olga (RUS)24141-050 ≣E41Ch Russia (junior...18 Apr 2010
351Gupta Milon (GER)2270Dommisse C (NED)1-050 ≣E47It (open)
435Kovacic Peter (SLO)2173Dizdar Goran (CRO)25350-150 ≣E47It (open)
557Computer \Computer \0-150 ≣E46It (computers)
495Kovacs Istvan (HUN)2236Somogyi Istvan (HUN)22381-050 ≣E21Ch Hungary (team)...
341Dive Russell John...2339Martin Benjamin (...23751-050 ≣E41Ch New Zealand
623D'apa Matteo (ITA)2026Cardani Roberto (...19031-050 ≣E21Memorial Crespi (...08 Dec 2006
670Richardson John R...2298Devereaux Maxim (...23870-150 ≣E47Ch England (team)...22 Mar 2009
716Brodsky Michail (...2553De Verdier Michae...23861-050 ≣E47It (open)01 Mar 2011
502Elsness Frode (NOR)2395Khenkin Igor (GER)26330-150 ≣E41Cup Rilton
573Biswas KarlCarlucci Paul A0-150 ≣E41It (open) \23 Oct 2003
247Brilla Banfalvi S...Gisbrecht Ewgeni ...24151-049 ≣E47Ch Europe (team) ...
265Podgaets Mikhail ...2450Romanishin Oleg M...25601-049 ≣E41?
675Li Panru (CHN)2132Wang Xiaohui (CHN)22310-149 ≣E47Ch Asia (w)23 May 2009
171Sychev AVlansky P1-049 ≣E47Ch URS (corr.)
10Bronstein David I...2432Porath Yosef (ISR)23401-049 ≣E47Olympiad
378Winiwarter Felix ...2176Unzicker Wolfgang...24500-149 ≣E47Ch World (seniors)
763Byklum Bjornar (NOR)2298Vuilleumier Alex ...23261-049 ≣E47Cup European Club17 Oct 2012
207Thapper RolandZlebcik L0-149 ≣E47Ch Europe (team) ...
111Letelier Rene (CHI)2151Redolfi1-049 ≣E41?
493Buhmann Rainer (GER)2386Schreiner Richard...21921-049 ≣E47Bundesliga (2nd) ...
395Muir Andrew J (SCO)2360Prandstetter Edua...23750-149E47Cup European Club
346Bokor Istvan (HUN)2226Horvath Csaba (HUN)24450-149 ≣E47It (open) \
255Webb Simon (ENG)2420Boehlig Heinz Dr ...22371-049 ≣E47It \04 Jun 1978
681Aronian Levon (ARM)2768Naiditsch Arkadij...26971-049 ≣E47Ch World (active)...
677Nikolov Sasho (BUL)2416Videnova Iva (BUL)21970-148 ≣E47It (open)23 Jun 2009
133Zilber Israel (USA)2400Roizman Michael (...21941-048 ≣E41Ch URS (team)
221Emma Jaime (ARG)2405Link Hugo E (ARG)22751-048 ≣E47Tournament
96Prokhorovich Taras ERovner Dmitry Osi...1-048 ≣E47Tournament
363Fiorito Fabian (ARG)2438Fernandez Murga R...22301-048 ≣E47Ch Argentina
118Lazarev Efim M (UKR)2428Kurass Iskir (UKR)23401-048 ≣E21Ch Ukraine (1/2 f...
199Baart JoanWeyerstrass Ronal...0-148E41Match
358Oriansky AGaspariants I1-048 ≣E47Ch Europe (corr.)
165Averbakh Yuri L (...2445Rozhdestvensky V1-048 ≣E47Ch URS (team)
477Juhnke Karl (GER)2290Wronn Bernd (GER)21921-048 ≣E47Oberliga Northwes...
55Dittmann SieghardSterner Olaf1-048 ≣E47It
518Salo Heikki (FIN)2242Nyysti Sampsa (FIN)22150-148 ≣E47Ch Finland (team)...
484Garcia Palermo Ca...2470Van Riemsdijk Her...24050-148 ≣E10It (cat.6)
591Drozdowski Kacper...1812Paprocki Jaroslaw...22270-148 ≣E21Tournament (regio...04 Apr 2005
67Gligoric Svetozar...2447Stenborg Ake (SWE)22800-148 ≣E41Zt
444Tikkanen Kari (FIN)2265Osterman Georg (FIN)22811-048 ≣E47?
513Computer \Computer \1-047 ≣E47Tournament (compu...
29Rabar Braslav (YUG)Janosevic Dragolj...23300-147 ≣E41It
416Lesiege Alexandre...2460Baragar Fletcher ...22851-047 ≣E47Ch Canada
511Savon Vladimir A ...2449Smirnov Igor (UKR)24161-047 ≣E41Ch Ukraine (team)
268Hermlin Aarne (EST)2233Oberwalthal1-047 ≣E47World Tournament ...
301KummerStache1-047 ≣E47corr.
743Burnett Jim (ENG)2137Hawkins Jonathan ...24800-147 ≣E47It (open)09 Mar 2012
472Kostin Sergei (RUS)2290Tunik Gennady (RUS)24500-147 ≣E41Cup Russia (open)
307Gil Capape Javier...2444Janssen Han (NED)23280-147 ≣E47It \
554Gutov Andrey (RUS)2366Kolomensky Vladim...23151-047 ≣E41Ch Russia (1/2 fi...
189Gavrilovic Mikhail2200De Veauce Louis (...23001-047 ≣E47Ch Great Britain
482Romanov Oleg (BLR)2380Klima Lukas (CZE)22851-047 ≣E47It (open)
600Laasanen Teemu (FIN)2140Saastamoinen Aarn...21650-147 ≣E47Ch Finland (team)...10 Sep 2005
545Divljan Igor (YUG)2165Gerzhoy Leonid (CAN)23800-147 ≣E47Ch World (juniors...
429Iskusnyh Sergei (...2430Balashov Yuri S (...24900-147 ≣E47Ch Russia
506Kunz Konstantin (...2186Luther Thomas (GER)25470-146 ≣E47It (open)
57Bisguier Arthur B...2237Turner Abe22001-046 ≣E41Memorial Rosenwald
401Reinemer Frank (GER)2275Roemling Sven (GER)21601-046 ≣E41It (open)
627Fernandez Gonzale...2044Hernandez Holden ...25660-146 ≣E47It (open)06 Apr 2007
117Schweber Samuel (...2348Reinhardt Enrique...1-046 ≣E47Ch Argentina (pla...
366Siciarz JHoszowski Piotr0-146 ≣E41Ch Poland (corr.)
682Rees Ioan (WLS)2339Pap Gyula (HUN)25030-146 ≣E10It (cat.8)03 Aug 2009
123Galonska WIwaschin A1-046 ≣E41corr.
260Anton V (GER)Bunke Wilfried (GER)20901-046E47corr.
350Kozma Julius (CSR)2380Beran Josef (CZE)22700-146 ≣E47Ch Czechoslovakia...
565Navrotescu Catali...2410Bagheri Amir (FRA)24960-146 ≣E41Ch France (team) ...
114Polugaevsky Lev A...2585Blatny Frantisek ...21121-046 ≣E41It
1Benko Pal C (USA)2408Szabo Laszlo (GER)22001-046 ≣E47
701Del Rio Angelis S...2515Sanchez Gonzalez ...22881-046 ≣E47It (open)11 Sep 2010
744Timofeev Artyom (...2659Grandelius Nils (...25451-046 ≣E47Ch Europe28 Mar 2012
644Chuprikov Dmitry ...2443Rodin Dmitrij (RUS)24211-046 ≣E47Ch City06 Mar 2008
45Furman Semen (RUS)2550Antoshin Vladimir...22500-146 ≣E41Ch URS
112Souza Mendes JoaoShocron Ruben (USA)22591-046 ≣E41?
412Stornelli Vincenz...2175Hoffmann Joachim1-046 ≣E47?
678Murillo Alexis (CRC)2310Iturrizaga Eduard...25550-146 ≣E40Zt24 Jun 2009
59Ciocaltea Viktor ...2420Safvat Yousof (IRN)0-146 ≣E41Olympiad (sf)06 Sep 1956
522Kekki Petri (FIN)2300Sorsa Nuutti (FIN)22771-046 ≣E47Ch Finland
319Radulov LStrand1-046 ≣E46Europe Tournament...
698Ponomariov Ruslan...2749Naiditsch Arkadij...26741-046 ≣E47It (cat.20)23 Jul 2010
582Braun Arik (GER)2480Iotov Valentin (BUL)24140-145 ≣E47Ch World (juniors...07 Nov 2004
536Johannessen Leif ...2527Moussa Alaa-Eddin...22121-045 ≣E47Olympiad
539Niemela Antti (FIN)2256Koskela Niina (FIN)23101-045 ≣E47Ch Finland (team)...
598Galopoulos N (GRE)2016Pavlidis Antonios...20100-145 ≣E47Ch Greece (team)08 Jul 2005
357MrazCallens Alex22001-045 ≣E47Ch Europe (corr.)
490Sturua Zurab (GEO)2602Tiviakov Sergei (...26111-045 ≣E47Cup European Club...
44Idigoras GregorioSanguinetti J0-145 ≣E41Ch Argentina
22Averbakh Yuri L (...2445Euwe Max (NED)1-045 ≣E41Tournament (candi...
274Hawelko Marek (POL)2380Radziejewski Dari...23001-045 ≣E47It
281KahlGuenther1-045 ≣E47corr.
437Ruzzier Dario (ITA)1981Ceresoli Luigi (ITA)22020-145 ≣E47It (open)
632Iotov Valentin (BUL)2509Kuzubov Yuriy (UKR)25821-045 ≣E41It \07 Jun 2007
505Computer \Computer \1-045 ≣E47It (computers)
236Sydor Andrzej (POL)2325Pinkas Karol (POL)23201-045 ≣E41It (b)
480Cody Philip CMary Patrick0-145 ≣E47?
155EngelArlamowski Jerzy ...1-045 ≣E47Cup Baltic (corr.)
721Kostov Galin (BUL)2197Pantev Veselin (BUL)23730-145 ≣E47Ch Bulgaria (team...05 Jun 2011