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cruz abdul: I don't know anything about h2-h3 but I know that Andersen played 1.a2-a3 a couple of times as white ... his idea was (a) to confuse the opponent (b) simply, to "make white black" - after, let's say 1.a2-a3 e7-e5 he would follow along the usual lines of the black ... 2.e2-e4, etc.