Jörg Knappen wrote on Fri, Feb 3, 2012 10:43 AM UTC:
I don't understand how you derived the number 6 for the Spearman. In fact,
it has no backwards capture move and once the opposing King has broken the
line of Spearmen, no number of them can mate.
Maybe you want to say that a fox-and-geese style game with 6 Spearmen and a
King vs. a lone King from some initial position is won, but this something
very different.