I got 66 but I didn't track the steps. I'll try to get there again and document.
Re:Show HN: Square Game
by nominatronic on Sunday September 01, 2019 @02:49PM
(#20853976)
Diagonal moves by alternating directions are helpful.
69: Alternate down/right to 18, up/right to 30, up to 32, right, left to 40, up to 46, left to 49, up to 55, left/up to 65, left to 69.
Re:Show HN: Square Game
by nominatronic on Sunday September 01, 2019 @02:57PM
(#20854015)
71: same as above up to 55, then left to 60, up to 65 and right to 71.
I've also got up to 65 on similar strategies, but that's the best one I've got written down.