May 29, 2002 Office of the Chief Accountant Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Dear Sir/Madam: We have read paragraphs (a)(i) through (a)(v) of Item 4 included in the Form 8-K dated May 28, 2002, of Pinnacle Entertainment, Inc. to be filed with the Securities and Exchange Commission and are in agreement with the statements contained therein. Very truly yours, /s/ Arthur Andersen LLP Copy to: Mr. Chris Plant, Pinnacle Entertainment, Inc.