Yandex Reversi

Across an 8x8 board, black-green discs spread over white and gray squares in Yandex Reversi. Two sides compete for space, aiming to cover most of the grid by the end of the match. Closed enemy discs flip over and join the side that trapped them in a line. Edge control carries extra weight because a rival with free moves can take over large sections of the board.

How to play?

Pick easy, medium, or hard before the round begins, then place a disc where it seals an opposing line vertically, diagonally, or across a row. A legal move must bracket the other color between discs already on the board. Every captured disc flips to your color at once. Matches run only against the computer, and its patterns are hard to read, which makes planning several moves ahead more useful than copying one reply.