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