Revert 13b9e1e..5b370e9

This rolls back to commit 13b9e1e09811560d0120a8586c7418fb3640d626.
Revert "Revert 13b9e1e..5b370e9"

This reverts commit 054144b05addd2ba9bfc4415c1b7c9d98bc5e917.
take 12 (better cutNode previsions in null move, R = 3*ONE_PLY)