can you figure this one out?

im fairly certain its caused by the different lengths and angles of the bigger
pieces. the first time he moved it around i counted ten in a line. then he bumped
away 4 witch knocked the same line down to 9. then he proceeds to do the
same thing 2 more times always goes up to 10 bumps away 4 rinse and repeat.
nice little trick now do it with parallel cuts.