User Summary Kozynka is a variant on the English solitaire card game Solitaire and was programmed by Sergey Ryzhkov from Moscow. Kozynka incorporates 2 decks of standard playing cards which are dealt out in columns that increase in the number of cards up to the largest pile having 10 in a stack. The remaining cards make up the deck, which the player then uses to sort the cards in the same manner as in a game of Solitaire.