Tafl: viking chess

Tafl: viking chess is a Scandinavian strategy board game that was popular in the Middle Ages. In Scandinavian society, it was comparable to chess. The game has game variants that differ in board size, victory conditions, king encirclement conditions, and the number of attacking (black) and defending (white) pieces. You can play the game with artificial intelligence, with another person on one device, or with an opponent online in multiplayer mode.

How to play: The attacking black pieces move first. Then the players move in turns. All pieces move vertically or horizontally to any number of empty squares, like rooks in chess. The goal is to bring the king to the edge or corner of the board, while attackers try to encircle the king from two or four sides depending on the variant.