From: Marco Costalba <mcostalba@gmail.com>
Date: Mon, 2 Mar 2009 15:20:00 +0000 (+0100)
Subject: Revert hidden checkers rework
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=c02613860a3836bb85da25ae2fed9f1351ba27a5;hp=c02613860a3836bb85da25ae2fed9f1351ba27a5

Revert hidden checkers rework

It is slower the previous uglier but faster code.

So completely restore old one for now :-(

Just leave in the rework of status backup/restore in do_move().

We will cherry pick bits of previous work once we are sure
we have fixed the performance regression.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
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