Play real-time Othello (Reversi) with friends! Sandwich your opponent's pieces on an 8×8 board, flip them, and win with the most discs.

Othello (also known as Reversi) is the strategic board game played on an 8×8 grid where Black and White take turns placing discs, and any of the opponent's discs sandwiched in a straight line between your new disc and an existing one of your color flip to your side. Redesigned in 1971 by Goro Hasegawa in Japan as "a game you learn in a minute and play for a lifetime," Othello is one of the rare board games where the simplest possible rule produces the deepest strategic shockwaves.

You must play a move that flips at least one opponent disc; if no such move exists, your turn passes automatically. The game ends when the board is full or both players have no legal moves, and the side with more discs wins. Because a single move can flip dozens of discs at once, "the weight of one move" in Othello is unmatched in board games, and a single late-game stone can swing 30 pieces in one swoop.

The core beginner strategy is "corners are forever yours." A disc in a corner can never be flanked, making corners the most valuable real estate on the board. However, the three squares adjacent to a corner — the X-square and C-squares — are traps: placing there typically hands your opponent a path to the corner, so seasoned players deliberately avoid them in the opening and midgame. At a higher level, the guiding theory is mobility: the side with more legal moves available, not necessarily more discs, holds the real advantage.

OgleOgle Othello Battle supports 1v1 real-time multiplayer with a friend. Create a room and a unique invite link is generated; the moment your friend taps it, you both share the same board with Black and White assigned automatically. Every move syncs instantly, only legal moves are accepted, and the last-played disc is highlighted so the chain of flips is visually clear. An AI mode is included for solo practice when no friend is online.

A game runs about 5 to 15 minutes, the rules are simple enough that someone who has never seen the game can start in 30 seconds, and the strategic depth is unlimited. Whether it's a friend chat, a family gathering, or a post-lunch break, Othello fits any short window of time that needs real tactical tension. Send the invite link via messenger or DM and your opponent joins straight from a browser — no install required.