don't know, cause the inventor didn't use them in the game he made.
those pieces you mention are not in many games, but, da da, you should
check out my game 'sky', it has 0-3, 0-4, 4-4, 0-5 (technically,
fiveleaper also has a 4-3 leap, something to do with maths or
whathavenot)
and 5-5 (root-fifty-leaper, also again, has 7-1 leap too).