Please, don't bleed on the white tiles

The piano tile assembly line has been infested with zombies. We've installed a grinder to take care of the problem but it sure makes a mess. The tiles keep getting covered in zombie blood. Which is mostly a problem for the white tiles, cause they are really hard to clean.

We are in need of a more precise solution, and that solution is you!
Since you've already been slicing fruit and zombies like a ninja, we want you to apply your craft to take care of our zombie problem. Slice them off the assembly line and try not to spill any zombie blood on the white tiles.

It's fine if you tap the white tiles, just make sure you don't get any blood on them.