6. Be3 Black gains strong piece play J T Beckner vs N Whitaker, 1916 (C41) Philidor Defense, 48 moves, 0-1 6. Be3 Alekhine- Alekhine places his pieces on dark squares B V Lyubimov vs Alekhine, 1919  (C41) Philidor Defense, 28 moves, 0-1 Alekhine masterpiece vs. 5. qD5- ideal L Steiner vs Alekhine, 1936  (C41) Philidor Defense, 30 moves, 0-1 Great combination, 2 rook sacrifice O Bernstein vs Tartakower, 1937  (C41) Philidor Defense, 13 moves, 0-1 Bronstein proves that after 5.Nd2 NxN is a must Bronstein vs R Piatnitsky, 1940  (C41) Philidor Defense, 15 moves, 1-0 The answer to 5. qd5 Nc5 6. Ng5 Be6. Black uses dark sq4 pieces M Czerniak vs Najdorf, 1941  (C41) Philidor Defense, 70 moves, 0-1 Bronstein plays vs. no pawns in the center beautifully M Bertok vs Bronstein, 1962  (C41) Philidor Defense, 24 moves, 0-1 No pawns in center but forced was c6 after Bc4, this hindersdev Tukmakov vs J Rotstein, 1963 (C41) Philidor Defense, 45 moves, 1-0 Black plays c6 to trade queens and this weakness exploited Benko vs K Smith, 1972  (C41) Philidor Defense, 23 moves, 1-0 This is a nice tactic queen fork from Bc4 c6 variation. S Petronic vs Yu Shaoteng, 2001 (C41) Philidor Defense, 17 moves, 0-1 10 games