Cross chess: Cross-shaped cells, board geometry like hex chess but moves akin to normal chess (e.g.Circular chess: Played on a circular board consisting of four rings, each of sixteen squares.Pawns promote on the fourth and tenth ranks.
![hexcells infinite impossible hexcells infinite impossible](https://habigames.ru/files/hexcells-infinite_poster.jpg)
![hexcells infinite impossible hexcells infinite impossible](https://www.mobygames.com/images/shots/l/752315-hexcells-infinite-windows-screenshot-playing-a-custom-puzzle.jpg)
1.1.2 Standard rules, standard piece types, standard board.1.1.1 Standard rules, standard piece types, variant board.1.1 Standard rules and standard piece types.