Deletion of Checkball

Comment: Multiple searches (Highbeam, Questia, Google) are turning up no |evidence of |notability
Stance: delete
Cited policy: Wikipedia:Reliable sources (:WP:RS||:WP:GNG)

Comment: seems like a textbook . --&mdash
Stance: delete
Cited policy: Wikipedia:Wikipedia is not for things made up one day (WP:MADEUP)