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