Question 1: Does the chess piece feel no magnetic force?

Magnetic substances include magnets (strong magnetism) and magnets (weak magnetism).
When filling the base of the chess piece with a magnet, lifting the chess piece will lift the whole chessboard, and it is not convenient to move it. When filling the base of the chess piece with magnet, it feels a little suction when lifting the chess piece, but it is not big and does not affect the movement.