Cant seem to get the correct number of fan for a hand

[Bashoomba]

Hello, I was watching a video and saw an individual get the following hand

concealed, self drawn

Dora: and Seat wind: South

The person was awarded 16,000pt.,

Since she was not the dealer looking at a limit hand chart she would need at least 8fan for a Baiman for a 8000/4000, however when I add up the fan i always come out 1 short.

Reach -1
Iipatsu- 1
menzen tsumo - 1
Seat wind pon -1
DoraX3 - 3

this gives me 7 fan, one short of a baiman. Not quite sure what I'm missing here. Been trying to recalculate all the hands i see when i play win/lose to get a handle on counting score. Thanks for any help that can be provided.

Thanks,

Bash

[Shirluban]

You forgot to count "three concealed pon", for two more han.

Here is a quite nice sheet with the list of yaku and general reminder.
The European Mahjong Association have a rulebook in various languages too (be sure to look on the riichi area, not MCR).
Note that open tanyao ("all simple") is generally allowed, unlike in EMA rule.
And the cases of double yakuman are likely to differ from more "japanish" riichi rules.

[Bashoomba]

Thanks, i knew i was missing something. Much appreciated for the response and the links!

Bash