Oka and uma: Difference between revisions

→‎Floating uma: clarifications
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== Floating uma ==
== Floating uma ==
[[Image:UmaFloat.png|right|250px|thumb|Floating uma reflected in [https://tenhou.net/0/?log=2024091508gm-000b-18940-c5de598b&tw=3 these scores].]]
[[Image:UmaFloat.png|right|250px|thumb|Floating uma reflected in [https://tenhou.net/0/?log=2024091508gm-000b-18940-c5de598b&tw=3 these scores].]]
An alternate method uses '''floating uma''', or also referred to as sliding uma. In this case, the uma points awarded is based on the number of players above or below the target score. This makes end score calculation centered around the target score more so than just simple placement.
'''Floating uma''', or sliding uma, is an alternate method for calculating uma. When floating uma is used, the uma points will vary based on the number of players above/below the target score. This makes end score calculation centered around the target score more so than just simple placement.
 
Floating uma is used so that every player above the target score has uma >= 0, while every player below the target has uma <= 0. Any "leftover" bonuses/penalties are shifted to 1st/4th place, respectively, so that the combined uma still equals 0.


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For example in the case of a +15/+5/-5/-15 uma, the numbers would shift as follows:
For example, when using +15/+5/-5/-15 uma, the numbers would shift as follows:


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In some rulesets, it is possible for all four to fall below the target score. Under this setting, extension into South round or West round respectively is off.  This entails games ending in East 4 ([[tonpuusen]]) or South 4 ([[hanchan]]) under all cases.  Furthermore, points are also on the table via riichi calls at the end of the game.  However, none were claimed in the event of [[ryuukyoku]].  If this were the case, the distribution would assume two above and two below target score, even though no player is above the target score.
In some rulesets, it is possible for all four players to fall below the target score. Under this setting, there is no extension into the South/West round if the target score is not met; uma is applied as if there were two above and two below the target score (even though nobody hit the target score).


== Tie-breaker ==
== Tie-breaker ==
1,906

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