- cout << "key: " << hex << pos.key()
- << "\nmaterial key: " << pos.material_key()
- << "\npawn key: " << pos.pawn_key() << endl;
+ sync_cout << "key: " << hex << pos.key()
+ << "\nmaterial key: " << pos.material_key()
+ << "\npawn key: " << pos.pawn_key() << sync_endl;