Help:Playfield

Usually, you'll have a &lt;playfield&gt; one or more lines of the same length &lt;/playfield&gt;

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.

.......... ...IIII... ......T... .....TTT.. .......... .......... ......-... J.JJJ---I. JJJZJSLLI. OOZZTSSLI. OOZTTTSLI. GGG.GGGGGG GGG.GGGGGG

Unlike the now-deprecated pfstart and friends, you can use any arbitrary width you want. Just be sure every row is the same length to ensure it works properly.

List
ZLOSIJTG-CPB X123456789.

Note: Using space as an empty cell is not suggested, as it hinders readability for other editors; support for using space may or may not be unsupported in the future, as well. It is also suggested you only use purely uppercase letters, as there may be extensions in the future that interpret lowercase as something different from uppercase.