ASK FOR Mah Jongg Teacher Question// Is this a legal hand? Category 13579, 4th down. Can a one bam be used or does it have to be a one dot?

one Mah jongg beginner ask ?

Is this a legal hand? Category 13579, 4th down. Can a one bam be used or does it have to be a one dot?

Answer:

You nailed it. In that hand the White Dragon/Soap is a zero as in "10", and therefore a neutral tile that can be used with any suit.