b20 S Duron Godoy vs V Garcia Castro, 2004  (B50) Sicilian, 20 moves, 0-1 w20 W Schwartz vs Kieseritzky, 1842  (D20) Queen's Gambit Accepted, 20 moves, 1-0 w20 R Vazquez Igarza vs R Swinkels, 2006  (D85) Grunfeld, 20 moves, 1-0 w20 N Fercec vs B Medak, 2000  (B07) Pirc, 20 moves, 1-0 w20 W Hendriks vs D J Ledger, 2008  (C53) Giuoco Piano, 20 moves, 1-0 w21 Steinitz vs A Belaiev, 1873  (C39) King's Gambit Accepted, 21 moves, 1-0 w21 M Lange vs Schierstedt, 1856  (C25) Vienna, 21 moves, 1-0 w21 Fischer vs Greenblatt, 1977  (C33) King's Gambit Accepted, 21 moves, 1-0 w21 Ed. Lasker vs F Englund, 1913  (C48) Four Knights, 21 moves, 1-0 w21 Greco vs NN, 1620  (C41) Philidor Defense, 21 moves, 1-0 w21 C Bloodgood vs B Evans, 1961  (A00) Uncommon Opening, 21 moves, 1-0 w21 Janowski vs NN, 1895  (000) Chess variants, 21 moves, 1-0 w21 Lasker vs NN, 1898  (B28) Sicilian, O'Kelly Variation, 21 moves, 1-0 w21 Gligoric vs J Rosenstein, 1963  (B00) Uncommon King's Pawn Opening, 21 moves, 1-0 21w V Disawal vs M Anshuman, 2008  (B21) Sicilian, 2.f4 and 2.d4, 21 moves, 1-0 w22 Mackenzie vs J Mason, 1878  (C11) French, 22 moves, 1-0 b22 A Steinkuehler vs Blackburne, 1863   (C54) Giuoco Piano, 22 moves, 0-1 w22 A H Trott vs H H Cole, 1950  (B00) Uncommon King's Pawn Opening, 22 moves, 1-0 w22 Wayne vs K Hayward, 1990  (C27) Vienna Game, 22 moves, 1-0 w22 J McTigue vs C C Miheso, 1990  (C44) King's Pawn Game, 22 moves, 1-0 b 22 Maczynski vs W Pratten, 1948  (C53) Giuoco Piano, 22 moves, 0-1 w22 Greco vs NN, 1620  (C23) Bishop's Opening, 22 moves, 1-0 b22 A F Ludvigsen vs S Sorensen, 1872  (C40) King's Knight Opening, 22 moves, 0-1 b22 R Koemetter vs G Welling, 1995  (A40) Queen's Pawn Game, 22 moves, 0-1 w22 J Perrier vs F J Wellmuth, 1917   (B01) Scandinavian, 22 moves, 1-0 w22 J E Slade vs NN, 1960  (B58) Sicilian, 22 moves, 1-0 w22 F Young vs L Dore, 1892  (C21) Center Game, 22 moves, 1-0 w22 Imbaud vs Strumilo, 1922  (B01) Scandinavian, 22 moves, 1-0 w23 (find move 22 was a Monday puzzle) Najdorf vs NN, 1942  (D37) Queen's Gambit Declined, 23 moves, 1-0 w23 J Mason vs NN, 1900  (C30) King's Gambit Declined, 23 moves, 1-0 b23 J McConnell vs Morphy, 1849  (C38) King's Gambit Accepted, 23 moves, 0-1 b23 J Rosanes vs Anderssen, 1863  (C39) King's Gambit Accepted, 23 moves, 0-1 w23 Anderssen vs B Suhle, 1860  (C51) Evans Gambit, 23 moves, 1-0 w23 Anderssen vs Kieseritzky, 1851   (C33) King's Gambit Accepted, 23 moves, 1-0 23b O Troianescu vs Szabo, 1947  (C00) French Defense, 23 moves, 0-1 b23 M Larios Crespo vs D Salvador Lopez, 2001  (B01) Scandinavian, 23 moves, 0-1 w23 Morphy vs NN, 1858  (C55) Two Knights Defense, 23 moves, 1-0 w23 Bronstein vs M20, 1963  (C34) King's Gambit Accepted, 23 moves, 1-0 w23 Greco vs NN, 1620  (C37) King's Gambit Accepted, 23 moves, 1-0 w23 Greco vs NN, 1620  (C23) Bishop's Opening, 23 moves, 1-0 w23 T Bowdler vs H Conway, 1788  (C20) King's Pawn Game, 23 moves, 1-0 w23 Dus Chotimirsky vs Kotov, 1938  (D63) Queen's Gambit Declined, Orthodox Defense, 23 moves, 1-0 w23 A E Blackmar vs A Lapeyre, 1882  (D00) Queen's Pawn Game, 23 moves, 1-0 b23 C Bayer vs Falkbeer, 1852  (C52) Evans Gambit, 23 moves, 0-1 w23 PARSOS vs ETABETA, 2006  (E12) Queen's Indian, 23 moves, 1-0 w23 Onischuk vs Hertneck, 1997  (C05) French, Tarrasch, 23 moves, 1-0 b23 (b22 was mon puzzle) N Yaremko vs D Recuero Guerra, 2006  (B56) Sicilian, 23 moves, 0-1 b23 J F Smyth vs H Helms, 1915  (A80) Dutch, 23 moves, 0-1 b24 N Kosolapov vs Nezhmetdinov, 1936  (C46) Three Knights, 24 moves, 0-1 w24 J Mieses vs Marshall, 1903  (C21) Center Game, 24 moves, 1-0 w24 Maroczy vs G V R Exner, 1894  (C39) King's Gambit Accepted, 24 moves, 1-0 w24 Tarrasch vs K Eckart, 1892  (C31) King's Gambit Declined, Falkbeer Counter Gambit, 24 moves, 1-0 w24 Blackburne vs NN, 1863   (C21) Center Game, 24 moves, 1-0 24w - remove w's QR Bird vs Pinkerley, 1850  (000) Chess variants, 24 moves, 1-0 w24 Anderssen vs Dufresne, 1852  (C52) Evans Gambit, 24 moves, 1-0 w24 Morphy vs Schrufer, 1859  (C56) Two Knights, 24 moves, 1-0 w24 H K E Clemenz vs F Eisenschmidt, 1862  (C51) Evans Gambit, 24 moves, 1-0 b24 T Apeldoorn vs R Boonstra, 1988  (C44) King's Pawn Game, 24 moves, 0-1 w24 Hartlaub vs M W Testa, 1912  (C21) Center Game, 24 moves, 1-0 b24 J M de Oliveira Gomes vs J G Caetano Netto, 1942  (C46) Three Knights, 18 moves, 0-1 b24 Napoleon Bonaparte vs The Turk, 1809  (C20) King's Pawn Game, 24 moves, 0-1 w24 Greco vs NN, 1620  (C23) Bishop's Opening, 24 moves, 1-0 w24 Greco vs NN, 1620  (C33) King's Gambit Accepted, 24 moves, 1-0 w24 La Bourdonnais vs A D'Arblay, 1830  (C39) King's Gambit Accepted, 24 moves, 1-0 w24 Carlsen vs A Groenn, 2005  (D44) Queen's Gambit Declined Semi-Slav, 24 moves, 1-0 w24 V Soldatenkov vs S Durnovo, 1898  (C21) Center Game, 24 moves, 1-0 w24 Tarrasch vs K Satzinger, 1914  (A02) Bird's Opening, 24 moves, 1-0 w24 Lasker vs E Delmonte, 1906  (C10) French, 24 moves, 1-0 b24 Albin vs O Bernstein, 1904  (C50) Giuoco Piano, 24 moves, 0-1 w25 Prince Dadian vs Kolisch, 1885  (C27) Vienna Game, 25 moves, 1-0 w25 Bronstein vs V Mikenas, 1941  (C40) King's Knight Opening, 25 moves, 1-0 25w B Grabarczyk vs R Shetty, 1998  (C34) King's Gambit Accepted, 25 moves, 1-0 w25 Vidmar vs A Neumann, 1903  (C80) Ruy Lopez, Open, 25 moves, 1-0 w25 Morphy vs E Morphy, 1856  (C52) Evans Gambit, 25 moves, 1-0 b25 Lionne / Morant vs Auzout / Maubuisson, 1680  (C33) King's Gambit Accepted, 25 moves, 0-1 w25 E J Diemer vs Schickner, 1950  (D00) Queen's Pawn Game, 25 moves, 1-0 25w Adams vs A Walsh, 1998  (C61) Ruy Lopez, Bird's Defense, 25 moves, 1-0 w25 R Persitz vs D Hooper, 1954  (C29) Vienna Gambit, 25 moves, 1-0 w25 Bronstein vs R Vedder, 1997  (E16) Queen's Indian, 25 moves, 1-0 b26 Fitzgerald vs Loyd, 1898  (C39) King's Gambit Accepted, 26 moves, 0-1 w26 Alekhine vs A Frieman, 1924   (C21) Center Game, 24 moves, 1-0 b26 Didier vs Marshall, 1900  (C42) Petrov Defense, 26 moves, 0-1 w26 G Pirisi vs Van Wely, 1988  (B82) Sicilian, Scheveningen, 26 moves, 1-0 w26 J Kelleher vs J Cates, 2001 (C47) Four Knights, 26 moves, 1-0 w26 - remove white's queen's rook at start Morphy vs NN, 1856  (000) Chess variants, 26 moves, 1-0 w26 Morphy vs James Thompson, 1859  (000) Chess variants, 26 moves, 1-0 b26 J Schulten vs Kieseritzky, 1851  (B20) Sicilian, 26 moves, 0-1 w26 E J Diemer vs Schuppler, 1937  (D00) Queen's Pawn Game, 26 moves, 1-0 b26 A A R Afifi vs Beliavsky, 1985  (A13) English, 23 moves, 0-1 b26 H A Littleton vs Paulsen, 1859  (C45) Scotch Game, 26 moves, 0-1 w26 G Welling vs J Sibbing, 1981  (B20) Sicilian, 26 moves, 1-0 b26 Short vs N Das, 1999  (C18) French, Winawer, 26 moves, 0-1 b27 Kotov vs Bondarevsky, 1936  (A90) Dutch, 27 moves, 0-1 b27 NN vs Chigorin, 1875  (C37) King's Gambit Accepted, 27 moves, 0-1 b27 Uhlmann vs H Liebert, 1976  (A34) English, Symmetrical, 27 moves, 0-1 w27 Master vs Tell, 1974  (C53) Giuoco Piano, 27 moves, 1-0 w27 Grischuk vs Ponomariov, 2000  (B04) Alekhine's Defense, Modern, 27 moves, 1-0 w27 Navara vs J Helbich, 1998  (B99) Sicilian, Najdorf, 7...Be7 Main line, 27 moves, 1-0 27w J Cukierman vs Tartakower, 1930  (A47) Queen's Indian, 25 moves, 1-0 w27 Stefansson vs J Norqvist, 1998  (C84) Ruy Lopez, Closed, 27 moves, 1-0 b27 Staunton vs Von Der Lasa, 1853  (C65) Ruy Lopez, Berlin Defense, 27 moves, 0-1 w28 Nimzowitsch vs Hakansson, 1922   (C02) French, Advance, 28 moves, 1-0 b28 Rubinstein vs Marshall, 1908  (D02) Queen's Pawn Game, 28 moves, 0-1 w28 Steinitz vs Bird, 1870  (C51) Evans Gambit, 28 moves, 1-0 28w Rubinstein vs Tartakower, 1928  (A52) Budapest Gambit, 28 moves, 1-0 b28 F Deacon vs J Robey, 1862  (C30) King's Gambit Declined, 28 moves, 0-1 w28 Spielmann vs B Hoenlinger, 1929  (B15) Caro-Kann, 25 moves, 1-0 b28 Jaenisch vs Shumov, 1850  (B20) Sicilian, 28 moves, 0-1 28w L Forgacs vs Tartakower, 1909  (C13) French, 28 moves, 1-0 w28 Mephisto vs NN, 1883  (C45) Scotch Game, 28 moves, 1-0 w28 G Welling vs Kappler, 1983  (B23) Sicilian, Closed, 28 moves, 1-0 b28 Y Visser vs Speelman, 2006  (B17) Caro-Kann, Steinitz Variation, 28 moves, 0-1 b28 Plaskett vs W Watson, 1983  (B76) Sicilian, Dragon, Yugoslav Attack, 28 moves, 0-1 b28 Segal vs A W Fox, 1900  (B01) Scandinavian, 28 moves, 0-1 w29 Steinitz vs Mongredien, 1862  (B01) Scandinavian, 29 moves, 1-0 b29 E Rousseau vs C Stanley, 1845  (C53) Giuoco Piano, 29 moves, 0-1 w 29 Carlsen vs S Ernst, 2004  (B18) Caro-Kann, Classical, 29 moves, 1-0 w29 Alekhine vs NN, 1915  (C12) French, McCutcheon, 29 moves, 1-0 w mate in 29 D Contin vs Larsen, 2008  (B00) Uncommon King's Pawn Opening, 29 moves, 1-0 w30 Tal vs Y Rantanen, 1979  (B30) Sicilian, 30 moves, 1-0 w30 (remove white's QN) W R Ballard vs J Fagan, 1884   (000) Chess variants, 30 moves, 1-0 b30 E Kuzmenko vs I Krush, 2008  (B21) Sicilian, 2.f4 and 2.d4, 30 moves, 0-1 b30 Cochrane vs Somacarana, 1856  (B21) Sicilian, 2.f4 and 2.d4, 30 moves, 0-1 b31 H van Hartingsvelt vs Euwe, 1920  (C45) Scotch Game, 31 moves, 0-1 b31 Fritz vs Anand, 1992  (C59) Two Knights, 31 moves, 0-1 31w Spielmann vs Tartakower, 1925  (B41) Sicilian, Kan, 31 moves, 1-0 w31 Harrwitz vs Horwitz, 1846  (C44) King's Pawn Game, 31 moves, 1-0 b31 Hamppe vs Steinitz, 1860  (C27) Vienna Game, 31 moves, 0-1 w31 L Milman vs J Fang, 2005  (B18) Caro-Kann, Classical, 31 moves, 1-0 w31 D Ellison vs C R Gurnhill, 1966  (C44) King's Pawn Game, 31 moves, 1-0 b32 C Morrison vs M Basman, 1981  (B00) Uncommon King's Pawn Opening, 32 moves, 0-1 b32 (mon puzzle b31) Anderssen vs J Finch, 1851  (C51) Evans Gambit, 32 moves, 0-1 w32 Greco vs NN, 1620  (B20) Sicilian, 32 moves, 1-0 w32 Polerio vs Lorenzo, 1580  (C53) Giuoco Piano, 32 moves, 1-0 b32 B Lasker / Von Scheve / Trobach vs Tarrasch / Harmonist / Heidebreck, 1881  (C11) French, 32 moves, 0-1 b32 micro-Max vs Jonny, 2007  (C45) Scotch Game, 32 moves, 0-1 b move 33 J Schulten vs E Rousseau, 1841  (C33) King's Gambit Accepted, 33 moves, 0-1 w33 Chigorin vs Rubinstein, 1903  (C00) French Defense, 33 moves, 1-0 w33 Charousek vs Englander, 1894  (C20) King's Pawn Game, 33 moves, 1-0 w33 Tal vs J I Zilber, 1949  (C07) French, Tarrasch, 33 moves, 1-0 b33 Andrew Smith vs Philidor, 1790  (C24) Bishop's Opening, 33 moves, 0-1 34b M Basman vs Hartston, 1974  (C33) King's Gambit Accepted, 34 moves, 0-1 w34 Karpov vs Korchnoi, 1971  (C09) French, Tarrasch, Open Variation, Main line, 34 moves, 1-0 w34 C Stanley vs E Rousseau, 1845  (C50) Giuoco Piano, 34 moves, 1-0 b34 H Ruben vs S Sorensen, 1876  (C40) King's Knight Opening, 34 moves, 0-1 w35 (monday puzzle - find white's 33d move) Lasker / Maroczy vs NN, 1900  (C14) French, Classical, 35 moves, 1-0 w35 D Vocaturo vs T Hillarp Persson, 2009  (C18) French, Winawer, 35 moves, 1-0 w36 Karpov vs Bareev, 1994  (C07) French, Tarrasch, 36 moves, 1-0 w36 Geller vs Benko, 1962  (B13) Caro-Kann, Exchange, 36 moves, 1-0 w36 Alekhine vs Cercle de la Rive Gauche, 1925  (C00) French Defense, 36 moves, 1-0 w36 Steinitz vs Max Weiss, 1882   (C00) French Defense, 36 moves, 1-0 b36 C Golmayo vs Loyd, 1867  (C45) Scotch Game, 36 moves, 0-1 w36 Loyd vs S Rosenthal, 1867  (C50) Giuoco Piano, 36 moves, 1-0 b36 A Nakamura vs Nakamura, 2001  (B06) Robatsch, 36 moves, 0-1 w36 S Sharma vs Jester, 2006  (C11) French, 36 moves, 1-0 b37 Short vs Kasparov, 1993  (B22) Sicilian, Alapin, 37 moves, 0-1 w37 (36...Rxf8 and 37. Ne7#) Sveshnikov vs Igor Ivanov, 1976  (B14) Caro-Kann, Panov-Botvinnik Attack, 36 moves, 1-0 b37 Adams vs Shirov, 2003  (B30) Sicilian, 37 moves, 0-1 b37 NN vs A Solovtsov, 1904 (C01) French, Exchange, 37 moves, 0-1 b38 J Ost-Hansen vs Nunn, 1974  (C27) Vienna Game, 38 moves, 0-1 w38 Koltanowski vs NN, 1941  (B20) Sicilian, 38 moves, 1-0 b38 D Frank vs M M Homm, 1995  (C46) Three Knights, 38 moves, 0-1 b38 W Budzinski vs Dubois, 1855  (C31) King's Gambit Declined, Falkbeer Counter Gambit, 38 moves, 0-1 w38 Nimzowitsch vs A Gize, 1913  (B12) Caro-Kann Defense, 38 moves, 1-0 b38 (Bxd3 Rxd3# would be forced) Reito vs E Schiller, 1983   (B00) Uncommon King's Pawn Opening, 37 moves, 0-1 b38 (mon puzzle find b37) R Swinkels vs C Bauer, 2007  (B27) Sicilian, 38 moves, 0-1 b39 Bronstein vs A Fuderer, 1959  (C44) King's Pawn Game, 39 moves, 0-1 39w J Penrose vs Tartakower, 1950  (B28) Sicilian, O'Kelly Variation, 39 moves, 1-0 b39 H Mas vs Ganguly, 1991  (C59) Two Knights, 39 moves, 0-1 w40 Bogoljubov vs A H Trott, 1950  (A07) King's Indian Attack, 40 moves, 1-0 42b Tartakower vs H E Atkins, 1922  (C46) Three Knights, 42 moves, 0-1 b43 M K Saca vs Igor Ivanov, 1996 (C21) Center Game, 43 moves, 0-1 w43 Chigorin vs Tarrasch, 1893  (C00) French Defense, 43 moves, 1-0 43w Bogoljubov vs Tartakower, 1951  (B07) Pirc, 43 moves, 1-0 w43 Blackburne vs H E Price, 1906  (C31) King's Gambit Declined, Falkbeer Counter Gambit, 43 moves, 1-0 b43 L Geliashvili vs V Vepkhvishvili, 1966 (C47) Four Knights, 43 moves, 0-1 w45 W Lewis vs NN, 1829  (C53) Giuoco Piano, 45 moves, 1-0 w45 (43...Kf8 44.Qh8+ Bxh8 and 45.Rxh8# (44.Qxg7 also works)) Staunton vs NN, 1853  (B30) Sicilian, 43 moves, 1-0 b45 micro-Max vs Loop, 2007 (B25) Sicilian, Closed, 45 moves, 0-1 w47 (sat puzzle to find w43 - forced mate in 5) Chiburdanidze vs P Feustel, 1976  (C09) French, Tarrasch, Open Variation, Main line, 47 moves, 1-0 180 games