What is the East Heaven Solitaire game, how does it work?

According to the introduction of IGC Mobile s.r.o., East Heaven Solitaire is a Card game on the Android platform. There is currently a 5.0.1621 version released on Mar 06, 2020, you can see the details below.

Solitaire card game specially optimized for Android

Complete all Foundations in suit, from A to K.

Face-up cards in the Tableau should be build in sequence down, alternating color. Move face-up card groups in sequence down in alternate color.

Put a King to an empty column. Click Stock to deal 1 card to each Tableau