Crescent Solitaire implemented in HTML5: relocate cards from the crescent area to foundations. Kings are built down in suit to aces, and aces are built up in suit to kings. When no moves remain, use shuffles. Only the top card of each crescent pile is accessible for moves to foundations or tableau. Move one card at a time; tableau can be built up or down by suit, including wrapping from king to ace or vice versa. License options include free embedding and ad-supported use.