elimination of defense tactic D Grassie vs D Ciuksyte, 2006 (A43) Old Benoni, 23 moves, 0-1 5)...Nh6 G Studier vs E Diemer, 1955 (A43) Old Benoni, 33 moves, 0-1 Pawn Breaktru M Orr vs T Markowski, 2005 (A43) Old Benoni, 74 moves, 0-1 3)...a6 I Han Wong vs I Chelushkina, 2006 (A43) Old Benoni, 87 moves, 1/2-1/2 3)...a6 T Fodor Jr vs I Rajlich, 2006  (A43) Old Benoni, 40 moves, 0-1 5 games