I just remember that the Pawn has this line going underneath it.
I just remember that the Lance has this box beneath it.
I just remember that the Knight has these underlined crosses to the side of it.
I just remember that the Silver has this small hat. Silver is less valuable than Gold - you will notice that the silver kanji has a squeezed gold kanji in it. So the gold is half (the size) on the silver.
I just remember that the Gold has this hat above it.
I just remember that the Bishop has this box within it.
I just remember that the Rook has these loops to the side of it.
I just remember that the King has this shape.