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