title: how to use bitboards in chess?
body: <p>I am making a bitboard based chess engine and I would like to ask - assuming that I made a bitboard to every piece, what do I do with it? I read a little bit about some techniques like if you shift the pawns bit board to the left by 7 and 9 you get a bitboard representing the squares they attack, but how do I use it?
  or how do I use the rook bitboard or bishop bitboard? like what are their targets, and if I find it how do I connect it with the other pieces bitboards?
  I have been searching on it for days now but did not find a sufficient answer...
  thanks</p>