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