Depth ThreatDepth; // heavy SMP read access
// Last seconds noise filtering (LSN)
- const bool UseLSNFiltering = true;
+ const bool UseLSNFiltering = false;
const int LSNTime = 4000; // In milliseconds
const Value LSNValue = value_from_centipawns(200);
bool loseOnTime = false;
{
Move bookMove;
if (get_option_value_string("Book File") != OpeningBook.file_name())
- OpeningBook.open("book.bin");
+ OpeningBook.open(get_option_value_string("Book File"));
bookMove = OpeningBook.get_move(pos);
if (bookMove != MOVE_NONE)
// Go with internal iterative deepening if we don't have a TT move
if (UseIIDAtNonPVNodes && ttMove == MOVE_NONE && depth >= 8*OnePly &&
- evaluate(pos, ei, threadID) >= beta - IIDMargin)
+ !isCheck && evaluate(pos, ei, threadID) >= beta - IIDMargin)
{
search(pos, ss, beta, Min(depth/2, depth-2*OnePly), ply, false, threadID);
ttMove = ss[ply].pv[ply];