Cute idea, but I feel like this could’ve been executed a little better. Other routes could’ve been made closer to feasible etc. Just seems a bit unpolished.
Nope, can't improve on 2off.
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Edit: A month later, still 2off, so I tried something new and finally got the trick . 5 stars for difficulty.
Got it on first try. I find it by far too easy: 52 is a small amount of moves for such a big board, with also the need to move a minimum of 4 blocks to target, what is costly. Logically, target needs to be close to start position and with the less holes possible. That tells it all.