One more good evil level sudoku

[@AnonimityAssured]

I nearly missed this one. Not a bad puzzle at all. A well-hidden single slowed me down, but otherwise it had a natural flow. I liked the interplay between fours and fives (75 = row 7 column 5):
75, 73, 87, 65, 16,
71 (hidden pairs in box; one resolvable),
81, 97, 49, 98, 67,
52, 21, 42, 43, 62,
46, 58, 25 (that well-hidden single, owing to a pair in the row),
13, 54, 56, 55, 76,
96, 94, 26, 88, 89,
37, 48, 23, 61, 63,
31, 14, 29, 78, 22,
79, 77, 68, 39, 12,
93, 92, 33, 32, 17,
18, 47, 64, 45, 84,
85, 34, 35.