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