organ
/
Sanmill
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

search: Add var atRoot

This commit is contained in:
Calcitem 2021-04-20 22:48:26 +08:00
parent c439af4822
commit 7a97102c50
1 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/search.cpp
View File

@ -278,6 +278,8 @@ Value search(Position *pos, Sanmill::Stack<Position> &ss, Depth depth, Depth ori
}
#endif /* ENDGAME_LEARNING */
const bool atRoot = (originDepth == depth);
#ifdef TRANSPOSITION_TABLE_ENABLE
Bound type = BOUND_NONE;
@ -325,6 +327,8 @@ Value search(Position *pos, Sanmill::Stack<Position> &ss, Depth depth, Depth ori
}
#endif
// process leaves
// Check for aborted search
// TODO: and immediate draw
if (unlikely(pos->phase == Phase::gameOver) || // TODO: Deal with hash
@ -363,6 +367,8 @@ Value search(Position *pos, Sanmill::Stack<Position> &ss, Depth depth, Depth ori
}
#endif // THREEFOLD_REPETITION
// recurse
MovePicker mp(*pos);
Move nextMove = mp.next_move();
const int moveCount = mp.move_count();
@ -373,6 +379,13 @@ Value search(Position *pos, Sanmill::Stack<Position> &ss, Depth depth, Depth ori
return bestValue;
}
#if 0
// Follow morris, do not save to TT
if (moveCount == 0) {
return -VALUE_INFINITE;
}
#endif
#ifdef TRANSPOSITION_TABLE_ENABLE
#ifndef DISABLE_PREFETCH
for (int i = 0; i < moveCount; i++) {
@ -443,6 +456,7 @@ Value search(Position *pos, Sanmill::Stack<Position> &ss, Depth depth, Depth ori
if (Threads.stop.load(std::memory_order_relaxed))
return VALUE_ZERO;
// TODO: Not follow morris
if (value >= bestValue) {
bestValue = value;