Fan is a multiplier, and each gen doubles it
Sichuan fan multiplies rather than adds: a basic hand is ×1, all triplets ×2, full flush and seven pairs ×4, dragon seven pairs and pure all-triplets ×8, pure seven pairs ×16, four kongs ×64. Tap the hand types to stack them; each gen doubles again, as does winning off a kong or robbing one.
Set the cap to whatever your table plays — five fan means at most 32×, and anything above counts as the cap. With a base of one the payout is just the multiplier; with a base of five, a pure seven pairs comes to eighty.
Kongs and end-of-hand penalties
Kongs are their own entry: a direct kong has the discarder pay two shares, an exposed kong has all three pay one share each, and a concealed kong has all three pay two. The value of a share is a setting, usually the same as the base.
At an exhaustive draw, the not-ready penalty and the failed-void penalty both go through the penalty entry: pick who pays, who receives and how much each. Leave the recipients blank and it pays everyone else.
Players who have already won stop paying. The self-draw entry has a who-pays field — tap whoever is still in; leave it blank and all three pay.
Common questions
We settle in cash every hand — is this still useful?
Settling in cash still needs a number first. One bloody hand can hold three wins, several kongs and a penalty round — working that out is the hard part. The point here is producing the figure on the spot; keeping the ledger is a side effect.
Does it enforce the void suit?
No. The tiles are yours to police; this only handles money. If someone ends up with all three suits, record the penalty through the penalty entry.