1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O O-O 8.c4 Nf6 9.cxd5 Nxd5 10.Nc3 Be6 11.a3 Nd7 12.Qc2 h6 13.Re1 c6 14.Bd2 N7f6 15.Bf5 Bxf5 16.Qxf5 Bd6 17.Rad1 Qc7 18.Ne5 Rae8 19.Nxd5 Nxd5 20.Ng4 Qc8 21.Qh5 Rxe1+ 22.Rxe1 Re8 23.Ne5 Qc7 24.f4 Re7 25.Rf1 Qb6 26.Bc3 Nxc3 27.bxc3 Bxa3 28.Qg4 Qd8 29.f5 f6 30.Ng6 Re3 31.Nf4 Rxc3 32.Ne6 Qd7 33.Qf4 Bd6 34.Qd2 Rc4 35.Qe2 b5 36.Ra1 c5 37.Qe4 cxd4 38.Qa8+ Rc8 39.Rxa7 Rxa8 40.Rxd7 Bf8 41.Rxd4 b4 42.Nxf8 b3 43.Rb4 Kxf8 44.Rxb3 Ra5 45.Rf3 Ke7 46.h3 g6 47.fxg6 Rg5 48.Kf2 Rxg6 49.Rg3 Rg5 50.Rxg5 fxg5 51.g4 Ke6 52.Kg3 Ke5 53.h4 Ke4 54.hxg5 hxg5 1/2-1/2

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Opening: Petrov Defense (C42)
Player profiles: J Mason, G Reichhelm

Novelty of stem-game: 10. ...Be6

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0 0-0  8. c4 Nf6  9. cxd5 Nxd5  10. Nc3

page 1 of 1; 5 games    Game   Result Moves Year Event/Locale Opening 1. J Mason vs G Reichhelm   ½-½ 54 1874 Philadelphia m1 C42 Petrov Defense 2. I Moryc vs P Polkowski   ½-½ 47 2001 Kochan Mem Open C42 Petrov Defense 3. Akobian vs B Hanison   ½-½ 25 2004 Stans Net Chess C42 Petrov Defense 4. S Barrientos Chavarriaga vs A Nguyen   0-1 38 2004 36th Olympiad C42 Petrov Defense 5. Groszpeter vs T Petenyi   ½-½ 16 2012 Caissa GM July C42 Petrov Defense

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1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0 0-0  8. c4 Nf6  9. cxd5

page 1 of 1; one game    Game   Result Moves Year Event/Locale Opening 1. Blackburne vs J Mason 1-0 19 1886 ENG C42 Petrov Defense

 

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0 0-0  8. c4 Nf6

page 1 of 2; games 1-25 of 34  Game   Result Moves Year Event/Locale Opening 1. Anderssen vs T W Barnes   1-0 37 1862 London C42 Petrov Defense 2. M Judd vs J A Congdon 1-0 50 1874 3rd American Chess Congress C42 Petrov Defense 3. Winawer vs Shumov 1-0 26 1875 St Petersburg C42 Petrov Defense 4. E Schallopp vs C Berber   1-0 45 1876 MSB-02.Kongress C42 Petrov Defense 5. V Lizel vs Alapin   0-1 38 1879 Best Russian Players C42 Petrov Defense 6. Harmonist vs J Mason   0-1 62 1889 Breslau C42 Petrov Defense 7. E Schallopp vs Schiffers 1-0 37 1889 Breslau C42 Petrov Defense 8. E Schallopp vs J Mason   ½-½ 64 1889 Breslau C42 Petrov Defense 9. D M Martinez vs Burille 1-0 33 1889 USA-06.Congress New York (35-2) C42 Petrov Defense 10. E Schallopp vs Von Bardeleben   1-0 34 1889 Breslau C42 Petrov Defense 11. Max Weiss vs J W Baird 1-0 40 1889 USA-06.Congress New York C42 Petrov Defense 12. E Schallopp vs Mieses 1-0 22 1889 Breslau C42 Petrov Defense 13. Winawer vs J Mason   ½-½ 95 1892 DSB-07.Kongress C42 Petrov Defense 14. G Reichhelm vs J C Halpern   ½-½ 43 1904 Manhattan CC-Franklin CC C42 Petrov Defense 15. Vidmar vs F Englund 1-0 25 1905 Barmen Main A, GER C42 Petrov Defense 16. Kashdan vs Kupchik 1-0 37 1940 USA Ch C42 Petrov Defense 17. Plachetka vs V Tichy   ½-½ 28 1965 Harrachov U26 C42 Petrov Defense 18. Matulovic vs Kurajica   ½-½ 42 1972 YUG-ch C42 Petrov Defense 19. P L Cordue vs M H Roberts   1-0 23 1979 87th NZ Ch Premier Reserve C42 Petrov Defense 20. Sax vs Korchnoi 1-0 47 1991 Wijk aan Zee 51/395 C42 Petrov Defense 21. J Rosito vs A Martinez   1-0 21 1991 It op Mar del Plata ARG C42 Petrov Defense 22. Judit Polgar vs Hort   ½-½ 44 1994 Monaco Veterans-Women C42 Petrov Defense 23. REBEL vs Yusupov   ½-½ 24 1997 Ischia rapid m C42 Petrov Defense 24. D Howell vs Ali Kavakdere   1-0 39 2001 EYCC B12 C42 Petrov Defense 25. J Lipka vs M Drtina   1-0 25 2001 TCh-SVK C42 Petrov Defense  page 1 of 2; games 1-25 of 34

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1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0 0-0  8. c4

page 1 of 2; games 1-25 of 30  Game   Result Moves Year Event/Locale Opening 1. V Knorre vs Oskar & Bergell Cordel 1-0 34 1865 Berlin C42 Petrov Defense 2. W Smith vs G E Jackson   1-0 36 1873 CAN-ch C42 Petrov Defense 3. J Wisker vs G MacDonnell   ½-½ 74 1874 London m C42 Petrov Defense 4. Winawer vs Blackburne   ½-½ 64 1883 London C42 Petrov Defense 5. Capablanca vs F S Dunkelsbuhler   1-0 15 1913 Simul C42 Petrov Defense 6. H N Hansen vs Olland   0-1 66 1923 Scheveningen NED C42 Petrov Defense 7. G A Thomas vs Kashdan   0-1 52 1931 Hastings 3132 C42 Petrov Defense 8. G A Thomas vs G Page 1-0 47 1933 Olympiad C42 Petrov Defense 9. H Edelstein vs W F Taber   0-1 28 1964 Nevada Open C42 Petrov Defense 10. M Sharif vs C Silva Sanchez   ½-½ 16 1976 Haifa ol (Men) C42 Petrov Defense 11. S J Hutchings vs K Payne   1-0 75 1978 Buenos Aires ol (Men) C42 Petrov Defense 12. W Shipman vs J Mont-Reynaud   ½-½ 42 1994 Hawaii Int C42 Petrov Defense 13. E Anka vs L Azorit   1-0 35 1994 Metz-op C42 Petrov Defense 14. J Moreno Carnero vs A Al Badani 1-0 26 2000 34th Olympiad C42 Petrov Defense 15. B M Werner vs T Klaiss   ½-½ 47 2000 Wurttemberg Candidatos C42 Petrov Defense 16. Abdelhadi Aassim vs Mohamed Chehboune   ½-½ 21 2001 ch-MAR C42 Petrov Defense 17. P Petran vs L Seres   ½-½ 10 2001 FSIMA July C42 Petrov Defense 18. Sadvakasov vs K Aliev   1-0 34 2003 Asia-ch 4th C42 Petrov Defense 19. R Vasquez vs R Navarro Segura 1-0 25 2003 X Anibal Open C42 Petrov Defense 20. W Puntier vs G Laxman Wijesurija   0-1 36 2004 36th Olympiad C42 Petrov Defense 21. D Howell vs A Elamri 1-0 31 2005 Gibraltar Masters C42 Petrov Defense 22. Ly Hong Nguyen vs Bui Vinh   0-1 53 2005 ch-VIE Playoff C42 Petrov Defense 23. Ganguly vs V Aristotelous   1-0 33 2006 37th Chess Olympiad C42 Petrov Defense 24. B Laurent vs P Chambule   1-0 28 2008 2008 Olympiad C42 Petrov Defense 25. B Thorfinnsson vs S Ingason   1-0 35 2009 Reykjavik Open C42 Petrov Defense  page 1 of 2; games 1-25 of 30

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1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0 0-0

page 1 of 2; games 1-25 of 42  Game   Result Moves Year Event/Locale Opening 1. G Medley vs Kolisch   ½-½ 27 1860 London m C42 Petrov Defense 2. Mackenzie vs G Medley   1-0 31 1862 London C42 Petrov Defense 3. D M Martinez vs J Mason   ½-½ 24 1889 USA-06.Congress New York (34-2) C42 Petrov Defense 4. Tarrasch vs J Mason 1-0 38 1890 6th BCA Congress C42 Petrov Defense 5. Lasker vs J Mason   1-0 51 1892 London B.C.A. Masters C42 Petrov Defense 6. Alapin vs J Mason   0-1 44 1892 DSB-07.Kongress C42 Petrov Defense 7. Tarrasch vs K Walbrodt 1-0 33 1894 Nuremberg m C42 Petrov Defense 8. G Marco vs J Schwarz   1-0 21 1895 Vienna C42 Petrov Defense 9. V Tabunshikov vs Dus Chotimirsky   1-0 24 1901 RUS-ch02 C42 Petrov Defense 10. Maroczy vs J Mason   ½-½ 60 1902 Monte Carlo C42 Petrov Defense 11. Schlechter vs J Mason   ½-½ 33 1902 Monte Carlo C42 Petrov Defense 12. W Cohn vs Pillsbury   1-0 55 1902 13th DSB Kongress (Hanover) C42 Petrov Defense 13. L R Eisenberg vs Pillsbury 1-0 44 1902 Monte Carlo C42 Petrov Defense 14. Reggio vs J Mason   ½-½ 32 1903 Monte Carlo C42 Petrov Defense 15. E Shrader vs L Uedemann   0-1 42 1904 7th American Chess Congress C42 Petrov Defense 16. B Lasker vs H Phillips 1-0 30 1905 New York-Berlin cable m C42 Petrov Defense 17. Leonhardt vs J Mortimer   1-0 26 1907 Ostende-B C42 Petrov Defense 18. G Walcott vs E Tennenwurzel   ½-½ 36 1911 New York Masters C42 Petrov Defense 19. Lisitsin vs Lilienthal   ½-½ 28 1940 USSR Championship C42 Petrov Defense 20. Timman vs L Stumpers   1-0 46 1969 Nederland C42 Petrov Defense 21. B Wall vs K Lawless 0-1 15 1973 California Grand Prix C42 Petrov Defense 22. E Rayner vs D Taruffi   ½-½ 10 1975 Wch U20 C42 Petrov Defense 23. R Byrne vs Reshevsky   ½-½ 60 1975 U.S. Championship C42 Petrov Defense 24. Tseshkovsky vs Suetin   1-0 75 1976 Dubna (Russia) C42 Petrov Defense 25. F Borkowski vs E Paoli   ½-½ 21 1977 Eksjo 5th C42 Petrov Defense  page 1 of 2; games 1-25 of 42

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1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0

page 1 of 21; games 1-25 of 509  Game   Result Moves Year Event/Locale Opening 1. Gouda vs Nijmegen   1-0 40 1851 correspondence C42 Petrov Defense 2. Loewenthal vs Morphy 0-1 80 1858 Morphy-Loewenthal C42 Petrov Defense 3. Loewenthal vs Morphy 1-0 70 1858 Morphy-Loewenthal C42 Petrov Defense 4. Loewenthal vs Morphy ½-½ 44 1858 Morphy-Loewenthal C42 Petrov Defense 5. T W Barnes vs Staunton 0-1 52 1859 London consult C42 Petrov Defense 6. Morphy vs W Budzinski 1-0 24 1859 Paris C42 Petrov Defense 7. Zukertort vs J Minckwitz   1-0 34 1869 Berlin C42 Petrov Defense 8. J S Stanley vs C G Heydon   0-1 28 1872 New South Wales v Victoria Telegraph Match C42 Petrov Defense 9. Anderssen vs A Fritz ½-½ 46 1878 WSB-12.Kongress C42 Petrov Defense 10. E Schallopp vs A Fritz   1-0 27 1880 Wiesbaden C42 Petrov Defense 11. Gunsberg vs Max Weiss 0-1 29 1889 New York C42 Petrov Defense 12. Janowski vs J Mason ½-½ 54 1895 Hastings C42 Petrov Defense 13. Lasker vs Pillsbury 0-1 33 1895 St. Petersburg 1895-96 C42 Petrov Defense 14. Riga vs Orel Chess Club   1-0 35 1896 Riga v. Orel match C42 Petrov Defense 15. F W Pelzer vs N Mannheimer   1-0 21 1899 Amsterdam C42 Petrov Defense 16. G Kalniczky vs Charousek   0-1 29 1899 Pelsocz C42 Petrov Defense 17. J C Halpern vs W P Shipley   ½-½ 48 1899 New York v Pennsylvania Interstate Teams Match C42 Petrov Defense 18. A Hild vs H Goering   1-0 19 1900 Tournament C42 Petrov Defense 19. Maroczy vs Pillsbury 1-0 33 1902 Monte Carlo C42 Petrov Defense 20. J Mason vs W Napier   ½-½ 51 1902 Monte Carlo C42 Petrov Defense 21. Janowski vs W Cohn 1-0 80 1902 13th DSB Kongress (Hanover) C42 Petrov Defense 22. Olland vs A M Levin   0-1 73 1902 13th DSB Kongress (Hanover) C42 Petrov Defense 23. Tarrasch vs Maroczy   ½-½ 32 1903 Monte Carlo C42 Petrov Defense 24. P P Benko vs A Rabinovich   0-1 27 1903 RUS-ch03 C42 Petrov Defense 25. H Wolf vs Teichmann   ½-½ 32 1903 Monte Carlo C42 Petrov Defense  page 1 of 21; games 1-25 of 509

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