Underpromotion check is the only way to draw. N Huschenbeth vs R Swinkels, 2008  (B67) Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7, 36 moves, 1/2-1/2 61.f8=N+ draws! Karpov vs Korchnoi, 1994  (E12) Queen's Indian, 72 moves, 0-1 promoting to a knight makes the win easier. Korody vs Bologh, 1933  (D08) Queen's Gambit Declined, Albin Counter Gambit, 8 moves, 0-1 Black's Queen died of heat stroke after the game. Mackenzie vs J Mason, 1882  (C41) Philidor Defense, 144 moves, 1/2-1/2 Queen checks get the her to a better spot to defend the king. Kasparov vs The World, 1999  (B52) Sicilian, Canal-Sokolsky (Rossolimo) Attack, 62 moves, 1-0 White's check on c8 is the only way to win. V Zurakhov vs Koblents, 1956  (C11) French, 80 moves, 1-0 6 games