Dora variations

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The use of dora may be subject to variation.

Akadora

Template:Rulevar Use some red fives in place of normal fives as extra dora.

  • Ari – Use three red fives, one per suit.
  • Nashi – Don't use any red fives.
  • Option – Tenhou.net offers both rules in different games. Akadora ari may be played with kuitan ari.
  • Additional - Along with the red fives, other tiles among the numbered suits or even the honor tiles may be indicated as dora.

Kandora

Template:Rulevar After declaring a kantsu, another dora indicator is flipped in the dead wall. All four players can benefit from this.

  • Ari – Flip a new kan dora indicator after declaring a kantsu, but I don't know the exact timing rules.
  • Sokun. – Sokunori. After declaring any type of kantsu, flip the next dora indicator immediately.
  • Late – After declaring ankan (concealed kantsu), flip the next dora indicator immediately. After declaring a minkan (open kantsu per call on a discard or per extension of a minkou), flip the next dora indicator only after declaring tsumo, declaring another kan, or discarding. The new dora indicator is in effect for any type of win.
  • Nashi – Don't flip any dora indicators upon declaring kantsu.

Kanuradora

Template:Rulevar Winning riichi declarers may flip the tile underneath each kan dora indicator and treat that as another dora indicator.

Uradora

Template:Rulevar Winning riichi declarers may flip the tile underneath the first dora indicator and treat that as another dora indicator.

  • Ari – Flip the ura dora indicator.
  • Nashi – Not used. Riichi declarers will know in advance how much their hand is worth.

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