8/5p2/8/4K1P1/5p2/7P/4R1p1/1k4r1 w - - 0 1
This was previously posted by Yancey Ward
I remember this one well. A very nice study from the Moscow Tourney 2017. A very counterintuitive first move, but what makes the study really difficult is finding black's most tenacious defense at move 1.