In my head I count 30 bytes, since all 16 pawns can be underpromoted to a bishop rook or knight.
Did you reach 30 by taking a number from the blog and adding to it? The first real size estimate in the post includes promoting to any piece, storing an entire 3 bits per pawn for all 16 pawns. This later gets optimized to 9 bits per side.
alt Hacker News
Did you reach 30 by taking a number from the blog and adding to it? The first real size estimate in the post includes promoting to any piece, storing an entire 3 bits per pawn for all 16 pawns. This later gets optimized to 9 bits per side.