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Toitoihou: Difference between revisions
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=== Viability === | === Viability === | ||
Naturally, this yaku is reasonable if your hand contains many triplets and/or pairs. Note that toitoi looks easier than it actually is. While you | Naturally, this yaku is reasonable if your hand contains many triplets and/or pairs. Note that toitoi looks easier than it actually is. There are only 2 possible tiles that can turn a pair into a triplet - there are 4 copies of a tile in mahjong, and 2 are used in the pair, leaving 2 tiles that can make the pair into a triplet. Meanwhile, a [[ryanmen]] joint can be turned into a sequence with 8 possible tiles. While you have access to pon to turn pairs into triplets, your opponents might not discard the tiles you need to pon in the first place. The tiles could be in the [[dead wall]], or they could be used in other player's hand structures. | ||
Pairs made out of middle tiles (tiles from 3-7) are particularly hard to pon. Because the middile tiles are likely to be kept in an opponent's hand, they are hard to pon. If you have multiple pairs made out of middle tiles, this yaku | Pairs made out of middle tiles (tiles from 3-7) are particularly hard to pon. Because the middile tiles are likely to be kept in an opponent's hand, they are hard to pon. If you have multiple pairs made out of middle tiles, this yaku becomes slower to copmlete. | ||
In addition, a hand with many pairs can also form [[chiitoitsu]]. The (very rough) rules of thumb are: | In addition, a hand with many pairs can also form [[chiitoitsu]]. The (very rough) rules of thumb are: | ||