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Riichi: Difference between revisions
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* The hand is closed - no [[chii]], [[pon]], or open [[kan]] has been made. | * The hand is closed - no [[chii]], [[pon]], or open [[kan]] has been made. | ||
* The hand is [[tenpai]] - it is one tile away from winning. | * The hand is [[tenpai]] - it is one tile away from winning. | ||
* If the [[Rule_variations#Scoring|game ends | * If the [[Rule_variations#Scoring|game ends when a player has a negative score]], the player must have at least 1,000 points. | ||
* There must be at least 4 tiles left in the live wall. In other words, the player must be able to draw at least one more tile in an uninterrupted set of turns. | * There must be at least 4 tiles left in the live wall. In other words, the player must be able to draw at least one more tile in an uninterrupted set of turns. | ||
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In real-life play, a player may declare riichi without tenpai - this would be a '''noten riichi''' {{kana|ノテン立直}}, which is highly ill-advised. If the hand results in [[ryuukyoku]], then it is required to reveal the hand. The hand would naturally show noten, which is illegal, and thus subject to a [[chombo]] penalty. Likewise, an incorrectly called win would also be subject to chombo. This dubious situation can be escaped if another player wins, another player commits a chombo, or if an [[abortive draw]] occurs. Of course, most computer based play will prevent players from declaring a riichi without tenpai. | In real-life play, a player may declare riichi without tenpai - this would be a '''noten riichi''' {{kana|ノテン立直}}, which is highly ill-advised. If the hand results in [[ryuukyoku]], then it is required to reveal the hand. The hand would naturally show noten, which is illegal, and thus subject to a [[chombo]] penalty. Likewise, an incorrectly called win would also be subject to chombo. This dubious situation can be escaped if another player wins, another player commits a chombo, or if an [[abortive draw]] occurs. Of course, most computer based play will prevent players from declaring a riichi without tenpai. | ||
== | == Scoring == | ||
Two yaku are specifically associated with riichi: '''ippatsu''' and '''double riichi'''. In addition, '''ura dora''' may be scored for any winning riichi hand. | Two yaku are specifically associated with riichi: '''ippatsu''' and '''double riichi'''. In addition, '''ura dora''' may be scored for any winning riichi hand. | ||
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{{main|Double riichi}} | {{main|Double riichi}} | ||
'''Double riichi''' {{kana|ダブルリーチ}} is a special case for riichi. If riichi is declared on the first turn, before the player's discard, then double riichi applies. In addition, no tile calls may have been made before riichi is called. | '''Double riichi''' {{kana|ダブルリーチ}} is a special case for riichi. If riichi is declared on the first turn, before the player's discard, then double riichi applies. In addition, no tile calls may have been made before riichi is called. As the name implies, double riichi is worth 2 han instead of 1 han, as a bonus for the initial timing. Due to the added han, and because tenpai is reached on turn 1, a double riichi hand has a huge advantage over others. | ||
As the name implies, double riichi is worth 2 han instead of 1 han, as a bonus for the initial timing. Due to the added han, and because tenpai is reached on turn 1, a double riichi hand has a huge advantage over others. | |||
=== Open riichi === | === Open riichi === | ||