Colored Checkers are blocks that have a motif like those of chess boards. They have no real purpose, except as decorations. The default color is grey, but you can change it with Dye. The minimum dimensions to show color are 2x2.
How to make:
|Output||Material||Material||Crafting . Station|
|Grey Checker||2 Stone||Coal Block||Workbench|
|Stone Block||Coal Block||Workbench|
|2 Coal||2 Stone||Workbench|
You can play chess in these blocks