// leave their idle loops and call search(). When all threads have returned from
// search() then split() returns.
-void Thread::split(Position& pos, const Stack* ss, Value alpha, Value beta, Value* bestValue,
+void Thread::split(Position& pos, Stack* ss, Value alpha, Value beta, Value* bestValue,
Move* bestMove, Depth depth, int moveCount,
MovePicker* movePicker, int nodeType, bool cutNode) {