Riichi: Difference between revisions

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=== Oikake riichi ===
=== Oikake riichi ===
For any given hand, more than one player may call riichi.  Subsequent riichi calls after the first is called '''oikake riichi''' {{kana|追いかけリーチ}}.  In English, this is often referred to as the "chase riichi".  Oikake has one distinct advantage of an ippatsu ron chance against any previous riichi hands before taking a draw.  After all, defense is no longer a factor to those hands, as they are committed to discarding non-winning tiles.  The hands are essentially engaged in a "riichi duel" provided that they have different waiting tiles. Under many rulesets, the hand aborts in the event for all players to have declared riichi via [[suucha riichi]].
For any given hand, more than one player may call riichi.  Subsequent riichi calls after the first is called '''oikake riichi''' {{kana|追いかけリーチ}}.  In English, this is often referred to as the "chase riichi".  Oikake has one distinct advantage of an ippatsu ron chance against any previous riichi hands before taking a draw.  After all, defense is no longer a factor to those hands, as they are committed to discarding non-winning tiles.  The hands are essentially engaged in a "riichi duel" provided that they have different waiting tiles. Under many rulesets, the hand aborts in the event for all players to have declared riichi via [[suucha riichi]].
=== Karaten riichi ===
Riichi may actually be called if all waiting tiles are rendered unavailable.  A hand in this state is rendered as [[karaten]].  In this state, the hand is not winnable as the number of available winning tiles is zero.  Such calls may be made by mistake, or intentionally to cause players to defend.


== Riichi based yaku ==
== Riichi based yaku ==
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