Professional League Game Rules

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Scoring treatment

Wins may be treated differently according to the rules in effect in a pro league, a jansou (or chain), a game server, or an organization.

Index Rule M-League <-§ JPML 競技 <-§ Saikouisen <-§ NPM <-§ MU <-§ RMU <-§
000 1-han limit Yes §1.3
000 Basic dora Yes §2.6.1 Yes (Implied)
000 Kan dora Yes (4) §2.6.2
§4.5.4
No §1.3
§4.1
000 Hidden dora Yes §2.6.3 No §1.3
§4.1
000 Red dora Yes (3) §2.6.4 No (Implied)
000 Seat shuffle 4 tiles §3.1 ___ ___
000 Abortive draws None §3.2.3 Yes (4) §3.3
000 Busting out None §3.2.4 ___ ___
000 Furiten riichi Yes §4.8.3 Yes §6.2 ­­
000 Drawless riichi Yes §4.8.3 Yes §2.5
000 Endgame deposits Top §4.8.5
§6.2.5
"Deposit"?? §2.4
000 Kan after riichi Same tile §4.8.9 Same shape §4.5
000 Multiple win cases 1 §5.1.3 1 §1.6
000 Starting points 25,000 §6.1 Not specified N/A
000 Target points 30,000 §6.2.1 Same N/A
000 Conversion before N/A N/A +XX.X
▲YY.Y
(§8.0)
000 Ante +20,000 §6.2.3 None (implied)
000 Placement bonus: 1st +30,000 §6.2.3 +12/+8/+8 §8.0
000 Placement bonus: 2nd +10,000 §6.2.3 -1/+4/+3 §8.0
000 Placement bonus: 3rd -10,000 §6.2.3 -3/-4/+1 §8.0
000 Placement bonus: 4th -30,000 §6.2.3 -8/-8/-12 §8.0
000 Conversion after +XX.Xp
▲YY.Yp
§6.2.4 N/A N/A
000 Split ranks on tie Yes §6.2.6 Yes §8.0
000 Split deposits on tie 500+500
400+300+300
§6.2.6 ___ ___
000 Double wind pair 2 fu §6.3.2 4 fu §7.4
000 Rinshan draw points unknown unknown 0 fu §7.5
000 Rounded mangan Yes §6.6.1 No §7.1
000 Cumulative yakuman Yes §6.6.1 Yes §7.3
000 Counted yakuman No §6.6.2 No §7.2
000 Fault: Long hand Dead §7.2.1 Chombo §6.4
000 Fault: Short hand Dead §7.2.1 Chombo §6.4
000 Fault: Future draw Dead §7.2.2 ___ ___
000 Fault: Pick-and-switch Dead §7.2.3 Allowed
(diff. tile)
§1.2
000 Fault: Empty call Dead §7.2.4 Dead §6.4
000 Fault: Empty tsumo/ron
hand remained concealed
Dead §7.2.4 Chombo §6.3
000 Fault: Tsumo for ron
or ron for tsumo
Warning §7.2.4 ___ ___
000 Fault: Bad grouping Dead §7.3.1+2 Chombo §6.4
000 Chombo penalty ▲20p §7.4.1 ___ ___
000 Fault: Bad ron/tsumo
hand was exposed
Chombo §7.4.2.1 Chombo §6.3
000 Fault: Noten riichi on draw Chombo §7.4.2.2 Chombo §2.3
000 Fault: Illegal kan after riichi Chombo §7.4.2.2 ___ ___
000 Fault: Breaking walls before scoring Chombo §7.4.2.3 ___ ___
000 Fault: Breaking uradora before scoring Chombo §7.4.2.3 ___ ___
000 Fault: Intentional destroyed wall Chombo §7.4.2.4 ___ ___
000 Fault: Unintentional destroyed wall Chombo §7.4.2.5 ___ ___
000 YELLOW CARDS None §7.5 ___ ___
000 Liability: 3 Dragons Yes §8.0.1 Yes §5.1
000 Liability: 4 Winds Yes §8.0.2 Yes §5.1
000 Liability: 4 Kans Yes §8.0.3 Yes §5.1
000 Liability: Live tile kan No N/A Yes (furiten
override!)
§4.2
000 Override: Closed kan kokushi  ??? N/A Yes §4.3
000 Count both rinshan + haitei No §5.4 No §4.4
000 One-shot yaku Yes §9.1.2 No §1.3
000 All Green yaku dragon required No §9.5.6 Yes §7.6
000 Runaway victory unknown unknown No §1.8
000 Abortive draws None §3.2.3 ___ ___
000 Abortive draws None §3.2.3 ___ ___
000 Abortive draws None §3.2.3 ___ ___

1. Trivial rules are not recorded, that should form the basis of a basic riichi rules page.
2. "Priority" designates current player priority (from discarder: Right > Across > Left), and not game seating priority as used to split ties on Tenhou (starting: East > South > West > North).