Minute 16 The 8 in r1c2 is obvious. Then of course the 13 in r1c9 that forms a pair with r1c3. Then, a glance below for the 79 in row 9 at col 2 and 9. Easy finish.
At 17:30, the 8 was fairly obvious at R1C2. Then you had to see the 1,3 pair in Row 1 at Cols 2 and 9. That placed the 5 at R3C7. Fairly easy after that.
Minute 16 The 8 in r1c2 is obvious. Then of course the 13 in r1c9 that forms a pair with r1c3. Then, a glance below for the 79 in row 9 at col 2 and 9. Easy finish.
At 17:30, the 8 was fairly obvious at R1C2. Then you had to see the 1,3 pair in Row 1 at Cols 2 and 9. That placed the 5 at R3C7. Fairly easy after that.
Not too difficult. 12 mins. notation free.