Merge official-stockfish/master

bench: 3778277

diff --cc src/evaluate.cpp
Simple merge

diff --cc src/movepick.cpp
Simple merge

diff --cc src/search.cpp
Simple merge

diff --cc src/thread.cpp
index 82dc0ea,e5043b6..27a1775
--- 1/src/thread.cpp
--- 2/src/thread.cpp
+++ b/src/thread.cpp
@@@ -191,10 -191,10 +191,10 @@@ void ThreadPool::start_thinking(Positio
  
    for (Thread* th : *this)
    {
-       th->nodes = th->tbHits = th->nmpMinPly = 0;
+       th->shuffleExts = th->nodes = th->tbHits = th->nmpMinPly = 0;
        th->rootDepth = th->completedDepth = DEPTH_ZERO;
        th->rootMoves = rootMoves;
 -      th->rootPos.set(pos.fen(), pos.is_chess960(), &setupStates->back(), th);
 +      th->rootPos.set(pos.variant(), pos.fen(), pos.is_chess960(), &setupStates->back(), th);
    }
  
    setupStates->back() = tmp;