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Chess rules meet massive multiplayer chaos in Xess.io, where you begin as a king and expand by capturing pieces across a shared board. Protect your king at all costs — losing it ends your run immediately.
Unlike turn-based chess, you move pieces freely and often, so speed and awareness beat slow planning. High-mobility pieces like the queen become prized targets for both offense and defense.
Know standard piece movement, grab enemy units, and control more territory than rival kings.