Honba
Honba 「本場」, or tsumibou count, is a point bonus: each honba adds 300 points to a winning hand's score. A honba is added whenever nobody wins (excluding chombo) or when the dealer wins.
Mechanics
Honba count
The following scenarios will increase the honba count by one for the next hand:
When any non-dealer wins a hand, the honba count resets back down to zero.
In online play, the honba count is automatically noted. When playing physically, the current dealer indicates the honba count by using 100-point sticks and placing them on the dealer indicator or on the table. These sticks are merely counters; when the seats rotate, the honba are returned to the previous dealer, and the next dealer assumes responsibility of tracking honba.
Scoring
For each honba in play, a winning hand's score increases by 300. For ron, the discarder pays the additional 300 points. For tsumo, everyone pays an additional 100 each (whether dealer or not). These extra points are added after the hand is scored, so the limits from mangan onwards do not apply. Points from honba are unaffected by the dealer bonus. For example:
- A non-dealer mangan tsumo with 2 honba is worth 8,600 in total - it costs 2,200 for non-dealers and 4,200 for the dealer.
- A dealer mangan tsumo with 2 honba is worth 12,600 in total - it costs 4,200 for each non-dealer.
In the case of sekinin barai, when the yakuman hand wins by tsumo, the discarder of the ponned tile has to pay the full honba. When it wins by ron, it may be subject to rule variation; tenhou.net has the discarder of the ponned tile pay honba.
A custom rule named basengo 「場千五」 changes each honba to be worth 1,500, five times the normal value. This rule is not common, usually seen under gambling situations.
Strategy
At only 300 points per honba, just one or two honba will have little impact on overall strategy. It could be important in all last (where 300 points can mean the difference between overtaking an opponent), but small honba counts can otherwise be ignored.
When there are many honba and/or riichi sticks in play, you should consider faster hands. For example, when there are 3 honba + 1 riichi stick, a base 1000 point hand will end up scoring 2900. In addition, winning will prevent your opponents from scoring the honba or riichi sticks.
External links
- Honba in Japanese Wikipedia