Update search.cpp

This add looks promising:
But is necessary to test with 40.000 or more games:

Finished game 1532 (syzygy-master vs syzygyB): * {No result}
Score of syzygyB vs syzygy-master: 330 - 285 - 914  [0.515] 1529
ELO difference: 10
Finished match

where syzygyB is the updated search.cpp and syzygy-master is the syzygy1/stockfish official
fork.

ciao & thanks!