Mahjong Fu Calculation Quiz
Learn fu (minipoint) calculation — the foundation of mahjong scoring
About the interactive drill
Our interactive fu calculation drill (Japanese UI) presents random hands and asks you to compute the correct fu total. After each answer, the drill shows a detailed breakdown — futei, tsumo bonus, each mentsu, the pair, and the wait — so you can see exactly where the points come from.
Open the drill (Japanese UI) →Why learn fu calculation?
- Compute your own score quickly at the table
- Declare the correct score for your winning hand
- Estimate opponents' potential scores
- Inform tactical discard choices (push vs fold)
- Deepen your understanding of mahjong scoring
Fu calculation cheat sheet
Base fu
- Futei (base): 20 fu (always added on normal hands)
- Tsumo (self-draw): +2 fu
- Menzen ron (closed-hand ron): +10 fu
- Open ron: +0 fu
Set (mentsu) fu
- Shuntsu (sequence): 0 fu
- Simple (2-8) minkou / ankou: 2 fu / 4 fu
- Terminal or honor minkou / ankou: 4 fu / 8 fu
- Simple minkan / ankan: 8 fu / 16 fu
- Terminal or honor minkan / ankan: 16 fu / 32 fu
Pair (jantou) and wait fu
- Yakuhai pair (dragons, seat or round wind): +2 fu
- Tanki / kanchan / penchan / nobetan wait: +2 fu
- Ryanmen / shanpon wait: 0 fu
Special rules
- Pinfu tsumo: fixed 20 fu (overrides accumulation)
- Chiitoitsu: fixed 25 fu
- Rounding: total fu is rounded up to the next 10 (e.g., 32 fu → 40 fu)
Drill difficulty levels
Beginner
Basic fu: futei, tsumo/ron, simple set fu, wait fu.
Intermediate
Open hands, hands containing kantsu, yakuhai pairs — frequently encountered in real play.
Advanced
Hands rich in terminals/honors, multiple ankou or ankan — the tricky high-fu cases.
Related English tools & articles
- Score Table — han × fu quick reference
- What is Han? (glossary)
- Shanten Calculator — tenpai detection
- Mahjong Learning Path — fu is a mid-stage topic