Relaxing 0xf0's second-byte floor from 0x90 to 0x80 left the whole suite green: every other row of the table had a case pinning it and that one did not, so f0 80 80 af decoded happily as "/". The same smuggled slash the two- and three-byte cases exist to catch, missed in the fourth width. Seven mutations verified red after this: the lead-byte floor at 0xc2 and the second-byte bounds on 0xe0, 0xed, 0xf0 and 0xf4, the truncated-sequence width, and the split cursor dropping its trailing empty field. An eighth, lower-ascii written as a bit-xor, is red on the bytes either side of the letters — which is why those are in the table and the letters alone are not.
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