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Daburu riichi: Difference between revisions
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* [http://tenhou.net/0/?log=2016072423gm-00a9-0000-b0aed9e0&ts=8&tw=2 Double riichi denied] | * [http://tenhou.net/0/?log=2016072423gm-00a9-0000-b0aed9e0&ts=8&tw=2 Double riichi denied] | ||
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'''Daburu riichi''' {{kana|両立直}} or {{kana|ダブルリーチ}}, or simply '''double riichi''', is a special case for [[riichi]] on the first turn. Specifically, if the player reaches [[tenpai]] before their first discard (i.e., within the first 14 tiles), and before anyone has made a [[Naki|tile call]], then riichi will automatically be converted into double riichi. Double riichi is worth 2 han instead of the usual 1 han. | '''Daburu riichi''' {{kana|両立直}} or {{kana|ダブルリーチ}}, or simply '''double riichi''', is a special case for [[riichi]] on the first turn. Specifically, if the player reaches [[tenpai]] before their first discard (i.e., within the first 14 tiles), and before anyone has made a [[Naki|tile call]], then riichi will automatically be converted into double riichi. Double riichi is worth 2 han instead of the usual 1 han (i.e., +1 han compared to riichi). | ||
As with regular riichi, double riichi is not mandatory, but rarely do players decline an opportunity for it. In addition to the added han, a double riichi hand is much faster than the average hand. | As with regular riichi, double riichi is not mandatory, but rarely do players decline an opportunity for it. In addition to the added han, a double riichi hand is much faster than the average hand. | ||
== Cancellation == | == Cancellation == | ||
Double riichi is not possible when anyone makes a tile call before the riichi call, even if you reach tenpai on your first turn. Therefore, | Double riichi is not possible when anyone makes a tile call before the riichi call, even if you reach tenpai on your first turn. Therefore, [[kan]], even the player's own closed kan, will deny this yaku. In [[sanma]], [[kita]] calls will also deny this yaku. | ||
== Tenhou and Chihou == | == Tenhou and Chihou == | ||
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After a few discards, you can benefit from the [[furiten]] rule. When a player is in riichi, any discarded tile not claimed for a win is safe against that riichi. Therefore, safe tiles will rack up quickly. Eventually, players may reach tenpai and win for themselve.s | After a few discards, you can benefit from the [[furiten]] rule. When a player is in riichi, any discarded tile not claimed for a win is safe against that riichi. Therefore, safe tiles will rack up quickly. Eventually, players may reach tenpai and win for themselve.s | ||
The threat of double riichi can also be ended via [[Tochuu ryuukyoku|abortive draw]]. [[Kyuushu kyuuhai]] can immediately end the hand before the declarer can claim tsumo, as can suufon renta. | The threat of double riichi can also be ended via [[Tochuu ryuukyoku|abortive draw]]. [[Kyuushu kyuuhai]] can immediately end the hand before the declarer can claim tsumo, as can suufon renta. The other types of draw (suukaikan, suucha riichi, sanchahou) are usually too dangerous to rely on, but they can get you out of the hand. | ||
== External links == | == External links == | ||