From a Pirc opening, fireworks and positional battles follow. V Chekhover vs M David, 1938 (B07) Pirc, 46 moves, 1-0 Assemblage of many points of chess ideas in one game. Topalov vs Leko, 2013  (D38) Queen's Gambit Declined, Ragozin Variation, 58 moves, 1-0 Keep eye on king attack and restriction. V Sozin vs V S Nekrasov, 1931  (B29) Sicilian, Nimzovich-Rubinstein, 20 moves, 1-0 3 games