Ka Wu Xing Basics

Ka Wu Xing is Xiangyang mahjong for 2–3 players with 84 tiles: four of each dot, bamboo and dragon tile, with no character or wind tiles. Pung and kong are allowed; chow is not. A complete hand is melds plus any pair, and seven pairs has its own pattern.

The name means a five-wait: for example, you hold four-dot and six-dot and win on five-dot to complete 4-5-6; bamboo works the same way. Already holding a 4-5-6 does not count, because what matters is the winning tile. A plain hand can win by self-draw, but winning on a discard needs at least 2× unless you or the discarder has exposed a ready hand.

When ready, you can expose your hand: only the waiting tiles and waits are shown, and completed groups stay concealed. Autoplay then takes any legal win or discards the drawn tile, with no pung or kong. An exposed player’s wins and losses multiply by 2 after the pattern cap, and a discarder who feeds an exposed hand pays an extra 2× liability. In a drawn hand, each exposed player pays each unexposed player one base unit.

Kong payments settle immediately and separately, ignore exposure multipliers and survive a draw: for an exposed kong the discarder pays 2×, for an added kong each opponent pays 1×, and for a concealed kong each pays 2×; a robbed added kong earns nothing. Winning patterns multiply using the highest valid combination, normally capped at 8×, with double dragon pairs at 16×. So chips can change even when nobody wins.

Tips: at every action, check for a win before you pung, kong or discard; expose only if you accept showing your waits and autoplay; before exposure each action has 20 seconds, then autoplay takes over. Rooms can add horse bonuses, fixed piao, red-dragon wild tiles and consecutive-kong doubling; the default Xiangyang classic preset has no horse, no piao and no wild tiles, with kong-chain doubling on, and the chosen rules stay fixed for every hand.

Chips have no monetary value, and this game does not currently offer per-hand cryptographic verification records; see the fairness scope. Full rules and scoring · Open the game lobby