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Riichi: Difference between revisions
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'''Riichi''' (立直 or リーチ) is the most commonly used [[List of yaku|yaku]] in the game. This yaku may apply to any closed hand and may be declared upon achieving ''[[tenpai]]''. Due to its common usage, various specific game scenarios must be considered when using riichi. | '''Riichi''' (立直 or リーチ) is the most commonly used [[List of yaku|yaku]] in the game. This yaku may apply to any closed hand and may be declared upon achieving ''[[tenpai]]''. Due to its common usage, various specific game scenarios must be considered when using riichi. | ||
==Rules== | == Rules == | ||
When a player has a closed ''tenpai'' hand, the player may declare riichi. Doing so gains the hand 1 han. To declare riichi, a player announces riichi and discards a tile facing sideways in the discard pile. This is done to indicate when riichi was called. If that tile is claimed by another player for an open meld, then the next discard is turned sideways as a replacement. | |||
Unless the first sideways discard is claimed for a win immediately, the riichi announcer now places a bet of 1,000 points on the table. This bet is collected by the next player to win a hand. Specific rulesets may handle differently what happens to the bet on a multiple win. | Unless the first sideways discard is claimed for a win immediately, the riichi announcer now places a bet of 1,000 points on the table. This bet is collected by the next player to win a hand. Specific rulesets may handle differently what happens to the bet on a multiple win. | ||
After a riichi declaration, the hand remains locked and unchangeable. In this state, the player is simply waiting for a winning tile to appear, either by draw or discard. | After a riichi declaration, the hand remains locked and unchangeable. In this state, the player is simply waiting for a winning tile to appear, either by draw or discard. | ||
It is not allowed to declare riichi when less than four tiles remain in the wall. The player must be able to draw one more tile in an uninterrupted set of turns. | |||
=== Ippatsu === | === Ippatsu === | ||
'''Ippatsu''' (一発) is awarded if the player receives a winning tile within an uninterrupted set of turns after the winning declaration. Tile calls interrupt the set of turns. The latest possible chance to win with ippatsu is with the player's next drawn tile after the riichi declaration. Ippatsu is worth an extra 1 han. | '''Ippatsu''' (一発) is awarded if the player receives a winning tile within an uninterrupted set of turns after the winning declaration. Tile calls interrupt the set of turns. The latest possible chance to win with ippatsu is with the player's next drawn tile after the riichi declaration. Ippatsu is worth an extra 1 han. | ||