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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
761Spindelboeck Gern...2227Sakelsek Tadej (SLO)24361-026 ≣E46It (open)26 Aug 2012
476Speelman Jonathan...2600Ellers Holger (GER)24251-040 ≣A05Bundesliga 1998/99
102Spassky Boris V (...2548Ghitescu Theodor ...23841-034 ≣E21Ch World (students)
112Souza Mendes JoaoShocron Ruben (USA)22591-046 ≣E41?
228Sorsak Jozef Sr (...2125Kolesar Milan (SVK)21750-130 ≣E21It (b)
63Soos Bela (ROM)2281Ingerslev Aage (DEN)22301-039 ≣E41Olympiad16 Sep 1956
614Sondermann Johann...2152Bolvary Tamara (HUN)20610-131 ≣E47Tournament (Elo) (a)07 Apr 2006
41Somers StafJorgensen Vagn Rauhe0-139 ≣E41Ch World (juniors...
99Sokolov Vladimir ...2310Lokvenc Josef (AUT)1-032 ≣E47It
98Sokolov Vladimir ...2310Ivkovic Dusan (SRB)22341-042 ≣A46Ch Yugoslavia
717Sokolov Ivan (NED)2673Sammalvuo Tapani ...24771-034 ≣E47It (open)13 Mar 2011
693Skomorokhin Roman...2417Fedoseev Vladimir...21541-031 ≣E47Memorial R.Nezhme...03 Jun 2010
740Skliba Martin (CZE)2301Fusek Lukas19841-045 ≣E47Czech League 2011...08 Jan 2012
436Sjoberg Mats (SWE)2450Kveinys Aloyzas (...25150-136 ≣E47It (open)
36Simagin Vladimir ...Gipslis Aivars (LAT)24290-143 ≣A17Ch URS (team)
367Siciarz JKanonowicz S1-030 ≣E47Ch Poland (corr.)
381Siciarz JLewandowski K22001-035 ≣E47Ch Poland (corr.)
366Siciarz JHoszowski Piotr0-146 ≣E41Ch Poland (corr.)
750Shiva Ravi Pillai...1861Podolchenko Evgen...24640-127 ≣E46Cup Mayors (open)10 Jun 2012
552Shipov Sergei (RUS)2604Bagirov Rufat (AZE)24940-136 ≣E10It (open) \
689Shevtsov KirillTrifonov Aleksand...0-122 ≣E47Tournament (open)09 Jan 2010
400Sherbakov Ruslan ...2580Kupreichik Viktor...25351-035 ≣E47It \
183Shashin Alexsande...2350Osnos Viatcheslav...23841-041 ≣E47Ch Leningrad
394Semkov Semko (BUL)2450Serrano Marhuenda...21031-022 ≣E47It (open)
406Semkov Semko (BUL)2450Padreny J1-036 ≣E47It (open)
77SehlstedtBlatny Frantisek ...21120-141 ≣E41Olympiad (student...
117Schweber Samuel (...2348Reinhardt Enrique...1-046 ≣E47Ch Argentina (pla...
40Schweber Samuel (...2348Spassky Boris V (...25480-135 ≣E41Ch World (juniors...
169Schweber Samuel (...2348Mecking Henrique ...25781-039 ≣E41Tournament
748Schwalfenberg Joe...Maehrlein Christoph1-049 ≣A46Verbandsliga Bade...29 Apr 2012
722Schreiner Till (GER)2150Mueller Nick19580-133 ≣E47Ch Germany (junio...14 Jun 2011
465Schoen Wolfram (GER)2410Hall Jesper (SWE)24600-140 ≣E47Bundesliga (2nd) ...
713Schnider Gert (AUT)2358Schwenk Andreas (...21301-035 ≣E11It (open)17 Feb 2011
193Schmidt Waldemar ...2029Reimer Karl17040-134 ≣E46corr.
349SchepersPiekorz Roland19300-132 ≣E41Ch DDR (corr.)
511Savon Vladimir A ...2449Smirnov Igor (UKR)24161-047 ≣E41Ch Ukraine (team)
290Savolainen MattiHaapasalo Risto1-037 ≣E41?
665Sasikiran Krishna...2669Efimenko Zahar (UKR)26540-141 ≣E47It (cat.16)28 Jan 2009
443Sasata Robert (CAN)2279Ferguson Bobby (USA)22320-134 ≣E21It (open)
529Santa Luis A (PUR)2161Campora Daniel H ...25360-121 ≣E47It (open)
135Sanguinetti Raul ...2485Bielicki Carlos (...23151-040 ≣E41It
441Sanchez Cutillas ...2083Reig Albero Ferra...21621-029 ≣E41Ch Aragon (team)
540Salo Heikki (FIN)2279Sorsa Nuutti (FIN)22311-040 ≣E47Ch Finland (team)...
519Salo Heikki (FIN)2242Sorsa Nuutti (FIN)22771-038 ≣E47Ch Finland (team)...
518Salo Heikki (FIN)2242Nyysti Sampsa (FIN)22150-148 ≣E47Ch Finland (team)...
746Salinas Herrera P...2366Valiente Cristoba...22571-035 ≣E47It (cat.3)02 Apr 2012
663Salem A R Saleh (...2476Amin Bassem (EGY)25601-037 ≣A40Ch Arabic Countries22 Dec 2008
728Salem A R Saleh (...2489Ashwath R (IND)22491-036 ≣E41Ch World (juniors...07 Aug 2011
711Sagar Shah (IND)2298Venkatesh M R (IND)24791-045 ≣E47It (open)19 Jan 2011
437Ruzzier Dario (ITA)1981Ceresoli Luigi (ITA)22020-145 ≣E47It (open)
359Ruuskanen TimoViitala Aki0-144 ≣E47?
692Ruschukov BojanNikolova Adriana ...22950-137 ≣E40It \22 May 2010
581Ruetten Ingmar (GER)2047Hilmer Frank (GER)21790-126 ≣A40It (open)01 Oct 2004
507Rozumbersky ASeiner F1-032 ≣E47It (open)
605Rosin Federico (ITA)2143Bevilacqua Mauriz...21721-044 ≣E41It (open)20 Nov 2005
482Romanov Oleg (BLR)2380Klima Lukas (CZE)22851-047 ≣E47It (open)
503Rogers Ian (AUS)2574Solomon Stephen J...24351-041 ≣E47It (cat.10)
251Rodriguez Orestes...2485Olafsson Fridrik ...25300-126 ≣E41It (cat.10)
409Rodriguez Lopez R...2313Martin Garcia Jua...21420-137 ≣A17It (open)
360RimpinevaKivisto Mikko (SIN)22771-026 ≣E41Ch Finland (corr.)
670Richardson John R...2298Devereaux Maxim (...23870-150 ≣E47Ch England (team)...22 Mar 2009
144Reshevsky Samuel ...2430Porath Yosef (ISR)23401-034 ≣E41Izt
212Reshevsky Samuel ...2560Tan Lian-Ann (SIN)23701-043 ≣E47Izt
24Reshevsky Samuel ...2430Euwe Max (NED)1-040 ≣E41Tournament (candi...
354Remensberger HSuri Hans (SUI)20081-038 ≣E47It (open)
401Reinemer Frank (GER)2275Roemling Sven (GER)21601-046 ≣E41It (open)
239Reid Alan (SCO)2205Prizant Michael (...21360-120 ≣E47Ch Great Britain
682Rees Ioan (WLS)2339Pap Gyula (HUN)25030-146 ≣E10It (cat.8)03 Aug 2009
384Reading MichaelLittke Adam (CAN)23100-134 ≣E47It (open)
94Ravn PalleCatozzi H0-133 ≣E47Olympiad
270Ravikumar Vaidyan...2305Hovde Frank (NOR)22850-130 ≣E47It (open)
732Rasmussen Henning...2172Byrne Ray (IRL)20540-143 ≣E10Cup European Club26 Sep 2011
739Ramon Solans Albe...2280Cruz Jonathan (PER)23860-122 ≣E40It (cat.2)07 Dec 2011
569Ramirez Alejandro...2519Hernandez Holden ...24731-039 ≣E46Memorial C.Torre ...
211Rajkovic Dusan (SRB)2415Hort Vlastimil (GER)25901-034 ≣E47It
603Radziewicz Iweta ...2453Turov Maxim (RUS)25460-120 ≣E41It (cat.7)06 Nov 2005
319Radulov LStrand1-046 ≣E46Europe Tournament...
592Radojevic Sasa (SRB)2104Jovic Aleksandar ...24090-125 ≣A40Cup Belgrade 2005...05 Apr 2005
29Rabar Braslav (YUG)Janosevic Dragolj...23300-147 ≣E41It
684Quiroga Facundo (...2329Van Riemsdijk Her...23800-138 ≣A06Ch Paulista (final)03 Oct 2009
624Pushkov Nikolai (...2513Kornyukov Alexey ...24161-037 ≣E21Memorial G.I.Ivan...03 Jan 2007
685Purdon Colin (ENG)2102Downey Keith (WLS)19310-140 ≣E47It (open)20 Oct 2009
204Pulieri PaoloMicka0-132 ≣E47Ch Europe (corr.)
528Prudnikova Svetla...2411Baginskaite Camil...23361-034 ≣E47Ch World FIDE (KO...
96Prokhorovich Taras ERovner Dmitry Osi...1-048 ≣E47Tournament
553Prasad Devaki V (...2400Mishra Neeraj-Kum...23411-043 ≣E47Ch India
190Poulsson Eivind (...2340Hernandez Roman (...23751-027 ≣E47Ch World (team) (...01 Aug 1969
694Potkin Vladimir (...2630Corrales Fidel (CUB)25991-035 ≣E40Memorial J.Capabl...16 Jun 2010
642Potkin Vladimir (...2613Kiselev Vitaliy (...25271-035 ≣E47It (open)07 Feb 2008
489Potapov Alexander...2241Filippov Valerij ...25951-045 ≣E41Cup Russia
178Portisch Lajos (HUN)2523Sarapu Ortvin (NZL)22551-036 ≣E47Izt
150Portisch Lajos (HUN)2523Porath Yosef (ISR)23401-044 ≣E41Olympiad
253Portisch Lajos (HUN)2630Sosonko Gennadi (...25751-038 ≣E41It (cat.14)
258Portisch Ferenc (...2475Rigo Janos (HUN)23851-036 ≣E41Ch Hungary
313Portisch Ferenc (...2405Rigo Janos (HUN)23190-141 ≣E47It (open)
588Porat Shi (ISR)2444Greet Andrew (ENG)24281-039 ≣E47It (cat.7)09 Mar 2005
380Popov Sinisa S (SRB)2443Stanimirovic Alek...22401-031 ≣E40Ch Yugoslavia (team)
698Ponomariov Ruslan...2749Naiditsch Arkadij...26741-046 ≣E47It (cat.20)23 Jul 2010
114Polugaevsky Lev A...2585Blatny Frantisek ...21121-046 ≣E41It
86Polo Gomez Vicent...2212Shocron Ruben (USA)22590-142 ≣A17?