Wyo. Stat. § 1-23-106
All contracts, promises, agreements, conveyances, securities, and notes, made, given, granted, executed, drawn or entered into, where the whole or any part of the consideration thereof shall be for any money, property or other valuable thing won by any gaming, or by playing cards or any gambling device or game of chance, or by betting on the side or hands of any person gaming or for the reimbursing or paying any money or property knowingly lent or advanced at the time and place of such play, to any person or persons so gaming or betting, shall be utterly void and of no effect. No assignment of any bill, bond, note or other evidence of indebtedness, where the whole or any part of the consideration for such assignment shall arise out of any gaming transaction, shall in any manner offset the defense of the person or persons making, entering into, executing or giving such instrument so assigned, or the remedies of any person interested therein.
W.S. 1-23-106