I tried early this morning, spent ages stuck, then gave up without making any guesses, and without getting anything wrong
So I tried again just now, determined to guess from the outset. I made about three lucky correct guesses early on - and from then on it was straightforward.
Sudoffle #857
Sudoffle
⬛ 0
🟨 0
⏲️ 8m5s
Sudoffle