Question About "The Big Pot Game"

Hi. I am a Bukowski fan and I have read many of his novels and poetry collections; trying to steer clear of the post-mortem stuff. I ran into a poem last night on Youtube; some fanvid of a poem called The Big Pot Game. I had never heard of it before and I wanted to know if somebody could tell me where it comes from and if it's a legit Bukowski piece or a bastardized Martin re-write.

Thank you.