DS3 is bored to death with many typical preschooler games. He can't make it through a game of candy land or chutes and ladders, but will happily focus for 20-30 minutes on learning to play chess. He started asking to play at 2.5 when he saw his older cousins playing, and I got him a set for his 3rd birthday. Grandpa used to do tournaments, so maybe DS is following in his footsteps.