Tags: builder
To install the appstore app, right-click on your turtle to open the GUI, run pastebin get iXRkjNsG appstore. To install buildcheckerboard, run appstore get AlSweigart buildcheckerboard.

Builds a checkeboard floor out of coal and quartz blocks.

This program is used in Chapter 13 of Coding with Minecraft. You can view it at

 Free to copy under a Creative Commons BY-NC-SA license.