18 White to move and win S Kuemin vs R Staechelin, 2005  (D30) Queen's Gambit Declined, 20 moves, 1-0 Unzicker vs G Stein, 1948  (C15) French, Winawer, 56 moves, 1-0 Move 19, white to play Keres vs H Israel, 1943  (E33) Nimzo-Indian, Classical, 20 moves, 1-0 White to play afer 22..Ree8 M Konopka vs J Michalek, 2001  (E67) King's Indian, Fianchetto, 28 moves, 1-0 Black to play 38... A Nimzowitsch vs Tarrasch, 1911  (C45) Scotch Game, 39 moves, 0-1 White to move after 27..Rxb7 H Schussler vs Y Rantanen, 1977  (C68) Ruy Lopez, Exchange, 31 moves, 1-0 White to play after 34..Kf5 Petrosian vs Ivkov, 1979  (D30) Queen's Gambit Declined, 35 moves, 1-0 White to play after 18..Be5 H Hamdouchi vs A Simutowe, 2001  (B25) Sicilian, Closed, 19 moves, 1-0 Move 20, white to play S Polgar vs V Dimitrov, 1984  (D47) Queen's Gambit Declined Semi-Slav, 22 moves, 1-0 White to play after 13..Nfd5 Ed. Lasker vs B Winkelman, 1926  (D60) Queen's Gambit Declined, Orthodox Defense, 19 moves, 1-0 10 games