Thomas Athorne: I feel like there's some extreme variation in the difficulty of these problems, even within the same XP points count---for example, this was (at least for me) _much_ easier than problem 979 which is also 60 XP.
d4rkm4tter: So you think 979 is difficult? I think you picked one of the easier 60 xp problems.
This looks more like a 40XP problem. Pretty obvious idea and solution in 5 straightforward moves.