BTW, what is the EXACT nature of the 50 move rule. 50 consecutive moves, after no pawn moves, no captures...What about castling? Double check? Moves that could make progress in the game without captures or pawn moves. For example:
Assume in this position white can castle (no way to prove he can't), and playing 0-0-0 will be the 50th move without capturing, BUT the rook will now be taken next move? This is a win for white.
KQ vs KR, u have to get into the philidor position and is easy once from there. Getting there though is hard and I will study it.