Teotihuacan: Expert Challenges is a series of setups intended to challenge players who are well familiar with the game. Book 1 contains two challenges. Toughest Challenge This is a challenge for the most experienced players. The Action Boards are set up in the most challenging way possible, so you can expect final scores lower than average. Temple Challenge This is a challenge for experienced players. It introduces a new victory condition and requires the players to advance on the temple tracks to claim victory.