Magnetic Base Chess Set

This magnetic base chess set is based on...
DUCHAMP Chess Set by jacky3131 on Thingiverse:
https://www.thingiverse.com/thing:4854758

I redesigned the rook to make it resemble the other pieces more closely.
Rather than trying to insert magnets into the board, which would require aligning the magnetic poles with those in the chess pieces, I used a thin steel plate as a base for the board. By doing so, I didn't have to orient the magnets in the chess pieces in any particular polarity.
12" X 12" 16 Gauge Mild Metal Steel Sheet Plate
https://www.amazon.com/dp/B0FJDHDVVT

On the bottom of the plate, I attached a felt pad using 2" double-sided tape...
12" x 12" 1mm Thick Felt Paper
https://www.amazon.com/dp/B0CQN64JTW

2" wide double-sided tape...
https://www.amazon.com/dp/B08GQ9F86X

For the board itself, I modified this board...
Puzzle Chess Board - Remix by TeamOliva on Thingiverse:
https://www.thingiverse.com/thing:3092069

I didn't like the border, so I modified 3 pieces to make th