Dutch f4 line, e4 & c file control, knight & rook invades kside K Chernyshov vs K Le Quang, 2006  (A03) Bird's Opening, 41 moves, 0-1 Dutch f4 line; Black played solid against b4, c4 line. C passer B Kolvig vs V J Hansen, 1960 (A03) Bird's Opening, 35 moves, 0-1 Dutch f4 line; e3, b4, ...a5 line; Black penetrates thru qside V Aleshnya vs J Kluegel, 1997  (A03) Bird's Opening, 39 moves, 0-1 ...Bg4, ...Nd7 line, open game, equal position, tactics D Feofanov vs V Yemelin, 2004  (A03) Bird's Opening, 33 moves, 0-1 Nimzo Larsen style, ...nf6, ...bf5 setup, equalize easy C Pantaleoni vs A Potapov, 2010 (A01) Nimzovich-Larsen Attack, 28 moves, 0-1 Bla R Roethgen vs Faure, 1961 (A02) Bird's Opening, 30 moves, 0-1 6 games