Riichi Han Sweep

Riichi Han Sweep

Same order every hand. Add as you go.

  • ?Question
  • +Add han
  • (n)Value when open
  1. ?

    Closed?

    If not, skip.

    • Riichi1
    • Ippatsuwon within one go-around of riichi1
    • Menzen tsumowon by self-draw1
  2. ?

    Seven pairs?

    Skip Runs and Triplets. Chanta and junchan don’t apply.

    Yes +2
  3. +

    Runs

    Look at your sequences.

    • Pinfu closedall runs, plain pair, two-sided wait1
    • Iipeikou closedtwo identical runs. Two sets of them is ryanpeikou, 3.1
    • Ittsu1-9 straight in one suit2 (1)
    • Sanshokusame run in all three suits2 (1)
  4. +

    Triplets

    Look at your triplets and kans.

    • Toitoiall four sets are triplets2
    • Sanankouthree concealed triplets2
    • Yakuhaieach dragon, round-wind or seat-wind triplet1
  5. +

    Tiles

    Look at suits, terminals and honors.

    • Tanyaono 1s, 9s or honors1
    • Honitsusingle suit, honor tiles allowed3 (2)
    • Chinitsuentire hand is a single suit6 (5)
    • Chantaevery set and the pair contains a 1, 9 or honor2 (1)
    • Junchanevery set and the pair contains a 1 or 9, no honors allowed3 (2)
  6. =

    Add it up

    Add up every han above.

    han

Patterns to learn

Values
Most yaku are 1 or 2 han. Three is honitsu, junchan and ryanpeikou. Six is chinitsu.
Closed only
Riichi, ippatsu, tsumo, pinfu, iipeikou and seven pairs.
Open loses 1
Ittsu, sanshoku, chanta, honitsu, junchan and chinitsu.
Limits
5 mangan, 6–7 haneman, 8–10 baiman, 11–12 sanbaiman.
Rare yaku