The Medford Chess Club invites you to its weekly meet-up in Medford Square, taking place in the second-floor gallery at the library. Please note the new time of 10:30 a.m. to 12:30 p.m., due to the library closing at 1 p.m. on Saturdays in July and August. The club has chess sets, chess clocks, and helpful members to teach you the rules if you're new to the game. Players of all ages and skill levels are welcome, but those under…