About the Game

Riichi Mahjong is the Japanese variant of the classic tile game for exactly 4 players. Draw and discard tiles to form winning hands of four sets and one pair. Master yakus, declare riichi, and claim opponents' discards in this deep strategy game.

Basic Rules

1. 1Each player starts with 13 tiles (dealer gets 14). The wall has 136 tiles total.
2. 2On your turn, draw a tile from the wall, then discard one tile.
3. 3Form a winning hand: 4 sets (sequences or triplets) + 1 pair, or special patterns like Seven Pairs or Thirteen Orphans.
4. 4Claim opponents' discards: Chii (sequence, next player only), Pon (triplet, any player), Kan (quad), or Ron (win).
5. 5Declare Riichi when your closed hand is one tile away from winning — lock your hand and bet 1000 points.
6. 6Win by Tsumo (self-draw) or Ron (claiming a discard). Your hand must have at least one yaku (scoring pattern).
7. 7Common yakus: Riichi, Tanyao (all simples), Pinfu (no-points hand), Yakuhai (value tiles).
8. 8Points are calculated from han (yaku value) and fu (minipoints), with higher han reaching mangan and beyond.

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