Deletion of Cash room puzzle

Comment: per  and more. Recommend |snowball or speedy delete
Stance: delete
Cited policy: Wikipedia:Wikipedia is not for things made up one day (WP:MADEUP||WP:SNOW)

Comment: unreferenced "thing made up one day" with "some say" non-reference. The first edit says "My friend and I came up with this theory/puzzle." Fails  and 
Stance: delete
Cited policy: Wikipedia:Notability (WP:N||WP:V)