In the left
column: build
down regardless of
suit (for
example, a 5
can be played on a 6).
The first card must be one rank lower than the card in the central
column. For
example, if in the central
column there
is a 5, you can play any 4.
In the right
column:
build up regardless of
suit (for
example, a Jack
can be played on a 10).
The first card must be one rank higher than the card in the central
column. For example, if in the central
column there is a 5, you can play any 6.
Cards in the central
column
can be moved only when there is no card to its left and right.