X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.cpp;h=8f9a369ae23d86a9a4d62d046a8f35ea4c9f6013;hp=acd042c0a8ceb99a5f0fdaca232778c19a722718;hb=ffedfa33542a7de7d87fd545ea0a4b2fef8f8c6e;hpb=55a3e0af8d0d1e169cc8b16541ffeb41e157b66e

diff --git a/src/search.cpp b/src/search.cpp
index acd042c0..8f9a369a 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -700,6 +700,8 @@ moves_loop: // When in check and at SpNode search starts from here
                            &&  depth >= 8 * ONE_PLY
                            &&  abs(beta) < VALUE_KNOWN_WIN
                            &&  ttMove != MOVE_NONE
+                       /*  &&  ttValue != VALUE_NONE Already implicit in the next condition */
+                           &&  abs(ttValue) < VALUE_KNOWN_WIN
                            && !excludedMove // Recursive singular search is not allowed
                            && (tte->bound() & BOUND_LOWER)
                            &&  tte->depth() >= depth - 3 * ONE_PLY;
@@ -766,8 +768,6 @@ moves_loop: // When in check and at SpNode search starts from here
           && !ext
           &&  pos.legal(move, ci.pinned))
       {
-          assert(ttValue != VALUE_NONE);
-
           Value rBeta = ttValue - int(depth);
           ss->excludedMove = move;
           ss->skipNullMove = true;
@@ -979,8 +979,8 @@ moves_loop: // When in check and at SpNode search starts from here
 
       // Step 19. Check for splitting the search
       if (   !SpNode
+          &&  Threads.size() >= 2
           &&  depth >= Threads.minimumSplitDepth
-          &&  Threads.available_slave(thisThread)
           &&  (   !thisThread->activeSplitPoint
                || !thisThread->activeSplitPoint->allSlavesSearching)
           &&  thisThread->splitPointsSize < MAX_SPLITPOINTS_PER_THREAD)