4.6 Menzen building
You can also take another player’s discard to make a meld. Building your hand only from your own draws, without doing that, is called menzen.
Each turn, draw one and discard one, turning five blocks into four melds and one pair.
You choose discards starting with isolated tiles. With no isolated tiles and six blocks, you trim the taatsu with fewer ukeire.
Discard one tile.
You picked . It is part of a block.
You picked . An honor becomes a block only when a matching tile arrives.
You picked . Another isolated tile is harder to turn into a block.
Discard one tile.
You picked . It is part of a block.
You picked . An honor becomes a block only when a matching tile arrives.
You picked . Another isolated tile is harder to turn into a block.
Discard one tile.
You picked . It is part of a block.
You picked . A 1 or 9 has only three kinds of ukeire.
You picked . Another isolated tile is harder to turn into a block.
Discard one tile.
You picked . It is part of a block.
You picked . A 2 or 8 has only four kinds of ukeire.
You picked . Another isolated tile is harder to turn into a block.
Discard one tile to reach tenpai.
You picked . Discarding it does not reach tenpai.
You are in tenpai. 6-pin or 9-pin completes 78-pin for agari.