I think I don't understand bulgarian solitaire

Puzzles
#1

For “empty pile” test, as enter i have 7,7,421. result wanted is 1
as i understand i need create turn like that :
turn 0 : 7 7 421
turn 1: 6 6 420 3
turn 2: 5 5 419 2 4
turn 2: 4 4 418 1 3 5

i already more than 1 loop . so i misunderstand how do turn or misundertand the enter number.
( i’m french so answer as french is possible).

#2

A post was merged into an existing topic: Bulgarian solitaire

#3
#4