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