Othello. Flip the board. End with the most discs.

8×8 board, four discs in the center to start. Place a stone to outflank the opponent's disc row — every flanked disc flips to your color. Most discs at the end wins.

8×8 grid 3 engine levels flipping rules no login

Place a stone to outflank the opponent's disc row — every flanked disc flips to your color. Legal moves are highlighted with a ring; if you have none, you must pass. Most discs at the end wins.