James Bond enters M's office.
BOND: I came as quickly as I could, sir. What's the emergency? M: It's those fiendish SMERSH agents again. They've stolen my chess pieces. BOND: They've stolen *what* now? M: And they've hidden them in this poem! BOND: With all due respect, sir, when was your last mandatory drug test? M: I have an extremely important match coming up. You must find them! If you are successful, you can have this bonus cheque. BOND: That's the most ludicrous... you know, I'm rather intrigued by all the zeros on this cheque. May I see the poem?
Obviously, a man like Bond is too busy to do his own crypto-acrosto-steganography so he is counting on you to unravel this mystery. The words "pawn", "rook", "knight", "bishop", "queen", and "king" are hidden in this poem, disguised in a variety of ways (along with one other chess-related word as a bonus). Find them before M comes to his senses and cancels the offer.
Go tear the fourth rotation's bane
Right on our knees we fall, insane.
He skids in oil, ignites the street
With fierce, oblique encircling heat.
Go now. I keep my land, my own
To mists and tempests ever prone