Philidor Defence Le Quang Liem vs R Mamedov, 2008  (C41) Philidor Defense, 33 moves, 0-1 Center Game Nepomniachtchi vs F Vallejo Pons, 2007  (C22) Center Game, 36 moves, 0-1 Caro Kahn S Cao vs A Galkin, 2007  (B12) Caro-Kann Defense, 32 moves, 0-1 W H Stewart vs Capablanca, 1926  (B13) Caro-Kann, Exchange, 19 moves, 0-1 4 games