if (!data['refutation_lines'] ||
!data['refutation_lines'][nonstupid_moves[i]] ||
!data['refutation_lines'][nonstupid_moves[i]]['pv'] ||
if (!data['refutation_lines'] ||
!data['refutation_lines'][nonstupid_moves[i]] ||
!data['refutation_lines'][nonstupid_moves[i]]['pv'] ||