The rise of televised poker has convinced a lot of card players that they can bluff their way to riches. Would-be sharks can hone their skills without risking the mortgage by playing Texas hold 'em at the dozens of bars around town that hold free tournaments. (The bars make money from the drinks players order.) Seven nights a week, Poker Knights KC runs events at bars and restaurants from the River Market to Lee's Summit. Poker Knights offers cash prizes, not the crappy gift certificates most other free poker sites give to players lucky enough to end up with all the fake chips.