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=== Open riichi === | === Open riichi === | ||
'''Open riichi''' {{kana|オープン立直}} is an [[optional yaku]], which is a modified version to riichi itself. The principle works exactly in the same way as the original riichi. However, there is an added bonus of 1-han attached, which is earned by revealing either the hand or the tile waits. This naturally eases everyone else's ability to defend against the riichi. In general, the intent involves winning by self-draw. As a further optional rule, yakuman may be awarded if any player actually [[ron|plays into]] the open riichi. This is more or less a harsh penalty for playing into a revealed hand. Many official organizations and tournaments do not implement open riichi. It is more or less reserved for casual or gambling game settings. | '''Open riichi''' {{kana|オープン立直}} is an [[optional yaku]], which is a modified version to riichi itself. The principle works exactly in the same way as the original riichi. However, there is an added bonus of 1-han attached, which is earned by revealing either the hand or the tile waits. This naturally eases everyone else's ability to defend against the riichi. In general, the intent involves winning by self-draw. As a further optional rule, yakuman may be awarded if any player actually [[ron|plays into]] the open riichi. This is more or less a harsh penalty for playing into a revealed hand. Many official organizations and tournaments do not implement open riichi. It is more or less reserved for casual or gambling game settings. | ||
=== 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]]. | |||
== Riichi based yaku == | == Riichi based yaku == | ||