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Kokushi musou: Difference between revisions
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(kyuushu kyuuhai is not always available. move yakuman gosanke to development. add a few lines of analysis for specific #s of terminals) |
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Any player attempting kokushi musou makes the decision at the [[haipai|beginning]] of the hand. This will depend on a couple of conditions, the most important being the | Any player attempting kokushi musou makes the decision at the [[haipai|beginning]] of the hand. This will depend on a couple of conditions, the most important being the number of unique yaochuhai at the start. The point standing and the current [[kyoku|round]] also matter. Sometimes, players need a yakuman in order to win or [[Gyakuten|improve placement]]. | ||
* At 9 or less unique yaochuhai, the chance of winning, let alone the chance of reaching tenpai, are quite low. You should invoke a draw via [[Tochuu_ryuukyoku#Kyuushu_kyuuhai|kyuushu kyuuhai]], if able, unless you really need a big hand. | * At 9 or less unique yaochuhai, the chance of winning, let alone the chance of reaching tenpai, are quite low. You should invoke a draw via [[Tochuu_ryuukyoku#Kyuushu_kyuuhai|kyuushu kyuuhai]], if able, unless you really need a big hand. | ||
* At 10 unique yaochuhai, it becomes more reasonable. Assuming you have a pair, the hand's [[ukeire]] is similar to a 2-shanten [[chiitoitsu]]. If you need a quick hand, then a draw can be reasonable to invoke | * At 10 unique yaochuhai, it becomes more reasonable to go for the yakuman. Assuming you have a pair, the hand's [[ukeire]] is similar to a 2-shanten [[chiitoitsu]]. If you need a quick hand (e.g. close to [[oorasu|all last]]), then a draw can be reasonable to invoke, if able. | ||
* At 11 unique yaochuhai, the hand is basically at [[iishanten]], so you should usually go for kokushi. | * At 11 unique yaochuhai, the hand is basically at [[iishanten]], so you should usually go for kokushi. | ||
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{{main|Tochuu ryuukyoku}} | {{main|Tochuu ryuukyoku}} | ||
Realistic chances to complete kokushi musou may require a hand to begin with at least 9 yaochuhai. Even so, at this point, this gives a player the option to defer and abort the hand, rather than trying for kokushi. If a tile has been [[naki|called]] before your first turn, then kyuushu kyuuhai becomes unavailable. Also, | Realistic chances to complete kokushi musou may require a hand to begin with at least 9 yaochuhai. Even so, at this point, this gives a player the option to defer and abort the hand, rather than trying for kokushi. If a tile has been [[naki|called]] before your first turn, then kyuushu kyuuhai becomes unavailable. Also, some rulesets may disable the abortive draw. | ||
==Value== | ==Value== | ||