Double riichi

Declare riichi on your first discard of the hand, before any call — worth 2 han instead of 1.

Value 2 han — closed hands only
How often rare
Mahjong hand: 3 of characters, 4 of characters, 5 of characters — 6 of circles, 7 of circles, 8 of circles — 2 of bamboo, 3 of bamboo, 4 of bamboo — 5 of circles, 5 of circles — 6 of bamboo, 7 of bamboo, winning tile: 8 of bamboo
Riichi declared on your very first discard.

Check for it before anything else: the moment you sort your starting tiles, ask whether the hand is already tenpai — and if it isn't, whether your very first draw gets you there (see riichi and tenpai). Either way qualifies: declaring riichi with your very first discard is worth 2 han instead of 1. The window is exactly one discard wide — take a turn to reshape the hand and any later declaration is a normal riichi. One outside event can also downgrade it: if anyone calls chii, pon, or kan before your first discard, the double is off, though the declaration still counts as a regular riichi.

The common dilemma is a thin wait. First-turn tenpai hands often wait on an edge shape or a single tile, and it's tempting to spend a turn improving that. Doing so costs the extra han and the earliest possible ippatsu window. Most of the time, declaring immediately is right: a full hand of draws at even a thin wait, plus ura dora on the win, usually beats a slightly better wait one turn later. And the stack builds fast — double riichi, ippatsu, and a self-draw is 4 han before any dora.

Key points

Related yaku

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