+-----+-----+-----+-----+-----+-----+-----+-----+-----+
|     "     "     "     "     "     "     "     "     |
|     "  4  "     "     "     "     "     "     "     |
|     "     "     "     "     "     "     "     "     |
+=====+=====+=====+=====+=====+=====+=====+=====+=====+
|     "     "     "     "     "     "     "     "     |
|     "     "  7  "  1  "  4  "     "     "     "     |
|     "     "     "     "     "     "     "     "     |
+=====+=====+=====+=====+=====+=====+=====+=====+=====+
|     "     "     "     "     "     "     "     "     |
|     "  1  "  6  "  9  "     "     "     "     "     |
|     "     "     "     "     "     "     "     "     |
+=====+=====+=====+=====+=====+=====+=====+=====+=====+
|     "     "     "     "     "     "     "     "     |
|     "     "     "     "     "     "     "     "     |
|     "     "     "     "     "     "     "     "     |
+=====+=====+=====+=====+=====+=====+=====+=====+=====+
|     "     "     "     "     "     "     "     "     |
|     "  4  "     "     "     "     "  2  "  3  "  5  |
|     "     "     "     "     "     "     "     "     |
+=====+=====+=====+=====+=====+=====+=====+=====+=====+
|     "     "     "     "     "     "     "     "     |
|     "     "     "     "     "  6  "  8  "  4  "  1  |
|     "     "     "     "     "     "     "     "     |
+=====+=====+=====+=====+=====+=====+=====+=====+=====+
|     "     "     "     "     "     "     "     "     |
|     "     "     "     "     "     "     "     "     |
|     "     "     "     "     "     "     "     "     |
+=====+=====+=====+=====+=====+=====+=====+=====+=====+
|     "     "     "     "     "     "     "     "     |
|     "     "  2  "  5  "  9  "     "     "     "     |
|     "     "     "     "     "     "     "     "     |
+=====+=====+=====+=====+=====+=====+=====+=====+=====+
|     "     "     "     "     "     "     "     "     |
|     "  7  "  6  "  1  "     "  4  "     "     "     |
|     "     "     "     "     "     "     "     "     |
+-----+-----+-----+-----+-----+-----+-----+-----+-----+