Slav Zukertort vs Steinitz, 1886  (D10) Queen's Gambit Declined Slav, 46 moves, 0-1 ***** T van Scheltinga vs Gruenfeld, 1936  (D44) Queen's Gambit Declined Semi-Slav, 23 moves, 0-1 **** V Mikenas vs Botvinnik, 1944  (D44) Queen's Gambit Declined Semi-Slav, 32 moves, 0-1 **** Denker vs Botvinnik, 1945  (D44) Queen's Gambit Declined Semi-Slav, 25 moves, 0-1 *** T Schuster vs Bogoljubov, 1952  (D44) Queen's Gambit Declined Semi-Slav, 31 moves, 0-1 ** K Spraggett vs J Nogueiras, 1985  (D44) Queen's Gambit Declined Semi-Slav, 51 moves, 0-1 *** K Aseev vs Bagirov, 1992  (D44) Queen's Gambit Declined Semi-Slav, 22 moves, 0-1 ***** Kamsky vs Shirov, 1993  (D44) Queen's Gambit Declined Semi-Slav, 31 moves, 0-1 ** T Ernst vs E Hermansson, 2002  (D44) Queen's Gambit Declined Semi-Slav, 65 moves, 0-1 ** J L Watson vs Nakamura, 2003  (D44) Queen's Gambit Declined Semi-Slav, 28 moves, 0-1 **** Van Wely vs Shirov, 2005  (D44) Queen's Gambit Declined Semi-Slav, 43 moves, 0-1 **** Z Izoria vs I Cheparinov, 2005  (D44) Queen's Gambit Declined Semi-Slav, 37 moves, 0-1 12 games