Daburu Riichi
両立直 | daburu riichi
Declare riichi on your very first turn before any player has made an open call, earning double the usual riichi bonus.
By Kenji Tanaka · Updated
Overview
Daburu riichi, double riichi, is a 2-han yaku for declaring riichi on your very first discard, on the opening go-around, with no calls by any player beforehand. It is simply a riichi declared at the earliest possible moment, worth one extra han over a normal riichi to reward the commitment of locking your hand from the start. Like any riichi, it requires a closed hand already in tenpai, here straight from your dealt thirteen tiles, and it enables the same bonuses: ippatsu if you win within the next go-around, and ura dora revealed on a win. If any opponent calls pon, chii, or kan before your first discard, the double riichi opportunity is lost and only a normal riichi is available later. Because it depends on being dealt a tenpai or near-tenpai hand, daburu riichi is uncommon, but when the opening hand allows it the extra han comes essentially for free.
Example Hand
1m 2m 3m 4p 5p 6p 7p 8p 9p 5s 6s 7s 3z 3z
Conditions
- You must declare riichi on your very first discard of the hand
- Your hand must be tenpai (one tile away from winning) after drawing your first tile
- No player may have made an open call (chi, pon, or kan) before your riichi declaration
- You must place the standard 1000-point riichi bet
- If you are not the dealer, all players who discard before you must not have had their tiles called
- All other standard riichi rules apply (closed hand, cannot change tiles afterward)
Strategy Tips
- Daburu riichi is almost entirely luck — you need to be dealt 13 tiles that are already tenpai or become tenpai after your first draw. It’s worth 2 han instead of the normal 1 han for riichi, so it’s a significant boost when it happens.
- Always check your starting hand for tenpai. Beginners sometimes miss that their hand is already one tile away from winning. Count your tiles carefully before your first discard — you don’t want to miss a daburu riichi opportunity.
- Daburu riichi stacks with ippatsu just like regular riichi does. If you win within one turn cycle of declaring daburu riichi, you get daburu riichi (2 han) + ippatsu (1 han), plus potential ura-dora. This combination can produce surprisingly large scores from a seemingly ordinary hand.