Altoids Chess

I was inspired by Mini Chess for Altoid Box (https://www.thingiverse.com/thing:4004332), but found the set/board quite difficult to use practically. Maybe my magnets were too powerful, because pieces stuck together, and maybe my fingers are too big, because i had a hard to maneuvering pieces. but i loved the idea! So I thought: what if the board folded, and we could have a board that's twice as big?

So that's what I made. I used the same magnets that u/humphrey_b52 used for that board (4mm diameter, 2mm thick), and made the board "break" in half. Each square has a magnet embedded, so each piece sticks to each square. The board and pieces are scaled up, not quite by a factor of 2, because the tin is 90mm by 55mm (8 squares across 90mm, vs the whole board fitting into 55mm). At first I wanted the board to have a hinge, but with the embedded magnets, the two board halves would repel each other when folded, so instead they just separate and stack (and stick to the tin when in use, so no