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*When winning at all is the only thing that matters. When far in the lead, dama can be used to increase win rate (thus, ending the game faster). If the game is in [[oorasu|all last]], and winning with riichi wouldn't improve placement (even with ippatsu ron), dama can also be considered. | *When winning at all is the only thing that matters. When far in the lead, dama can be used to increase win rate (thus, ending the game faster). If the game is in [[oorasu|all last]], and winning with riichi wouldn't improve placement (even with ippatsu ron), dama can also be considered. | ||
*When the hand can improve. Riichi locks your hand in, preventing you from upgrading the wait or gaining yaku. If your hand has many upgrades, you may wish to dama. | *When the hand can improve. Riichi locks your hand in, preventing you from upgrading the wait or gaining yaku. If your hand has many upgrades, you may wish to dama. | ||
*When the hand is poor. If a hand would be riichi-only with a bad wait, committing to riichi may not be worthwhile. Staying dama gives a chance to tsumo | *When the hand is poor. If a hand would be riichi-only with a bad wait, committing to riichi may not be worthwhile. Staying dama gives a chance to tsumo and gives the option to [[fold]] if another player reaches tenpai. | ||
That being said, dama should not be overused. Riichi is a guaranteed +1 han, and on average provides +1.5 han. Since each han below 4000 points roughly doubles score, riichi offers a large score boost. See [[riichi strategy]] for more details on the decision to riichi or dama. | That being said, dama should not be overused. Riichi is a guaranteed +1 han, and on average provides +1.5 han. Since each han below 4000 points roughly doubles score, riichi offers a large score boost. See [[riichi strategy]] for more details on the decision to riichi or dama. |
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