Catched counting the nodes searched at
fixed depth. A quick and reliable cross check,
expecially in inflate only patches.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
It is more clear, at last for me.
Also cleanup evaluate_rook() and evaluate_queen()
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>