6                                         int x0, 
int x1, 
int y0, 
int y1) {
 
    7   assert(x0 >= 1 && x0 <= 9);
 
    8   assert(x1 >= 1 && x1 <= 9);
 
    9   assert(y0 >= 1 && y0 <= 9);
 
   10   assert(y1 >= 1 && y1 <= 9);
 
   14   for (
int sy = y0; sy <= y1; sy++)
 
   15     for (
int sx = x0; sx <= x1; sx++)
 
   24   const int ky = target.
y();
 
   29   const int kx = (target.
x() == 1) ? 2 : ((target.
x() == 9)? 8 : target.
x());
 
   49 template <osl::Player Turn>
 
   52                                              int x0, 
int x1, 
int y0, 
int y1) {
 
   53   assert(x0 >= 1 && x0 <= 9);
 
   54   assert(x1 >= 1 && x1 <= 9);
 
   55   assert(y0 >= 1 && y0 <= 9);
 
   56   assert(y1 >= 1 && y1 <= 9);
 
   60   for (
int sy = y0; sy <= y1; sy++) {
 
   61     for (
int sx = x0; sx <= x1; sx++) {
 
   74                                              int x0, 
int x1, 
int y0, 
int y1) {
 
   81 template <osl::Player Turn>
 
   83                                            int& num_pieces, 
int row) {
 
   84   return osl::enter_king::countPiecePointsInRange<Turn>(state, num_pieces, 1, 9, row, row);
 
   87                                            int& num_pieces, 
int row) {
 
   95   namespace enter_king {
 
   99      int x0, 
int x1, 
int y0, 
int y1);
 
  103      int x0, 
int x1, 
int y0, 
int y1);