Template:Pfstart

{| style="line-height: 10px; font-size: 7px; border: 1px solid #999"
 * Put this at the top of a variable-height playfield.

Usually, you'll have a pfstart one or more pfrow lines pfend

Example
It is possible to show one preview by putting the next piece all alone in a 2-row-high playfield above the main playfield.

For a 12-block-wide playfield as seen in Tetrinet, use tnetrow in place of pfrow. Narrower diagrams are also available, to help with load times. Currently we have width3row to width6row.