This game guide is for The Sims 3 only.

In The Sims 3, there are five Logic skill challenges to complete. This tutorial will assist players in completing these challenges.

Grand MasterEdit

Chess Grand Masters have reached the coveted fifth level of the competitive chess circuit. There, they sit upon their throne, gazing downwards upon their victims. Those who engage Grand Masters in chess improve their abilities in logic and chess more quickly.

How to Unlock: Via a telephone, Sims must call over a top-ranking opponent in chess and challenge them. They must win 15 matches in a tournament. The Chess secret skill is essential for determining the Sim's rank and their chance of winning the game.

  • Rank 1: Beat 2 opponents
  • Rank 2: Beat 4 opponents
  • Rank 3: Beat 8 opponents
  • Rank 4: Beat 12 opponents
  • Rank 5: Beat 15 opponents

Celestial ExplorerEdit

Celestial Explorers have discovered 20 celestial bodies through their telescope. Their extensive knowledge of the heavens allows them to discuss the stars with their friends and neighbors.

How to Unlock: 3 Logic skill points are required before the "Search Galaxy" option becomes available on a telescope. Then, find a total of 20 space objects, e.g. comets, satellites, planets, stars, and galaxies.

Teacher ExtraordinaireEdit

Teacher Extraordinaires have spent at least 20 hours tutoring other Sims. Because of this, they are much more effective when tutoring others.

How to Unlock: 5 Logic skill points are required before being able tutor teens or children. Tutor any teenager or child for 20 hours.

Skill ProfessorEdit

Skill Professors have spent at least 30 hours tutoring other Sims in skills. Because of this, they are much more effective when teaching skills to others.

How to Unlock: The Sim needs 10 points of the Logic skill and knowledge on any other skill to be able to tutor another Sim on that skill. Tutor any Sim in any skill until they collect 30 hours of tutoring.

Master Chemist[TS3:G]Edit

Master Chemists have discovered 10 potions. After learning every possible potion, they can create potions at a lower cost!

How to Unlock: 10 Logic skill points are required to learn all potions. Buy the Catalyst Chemistry Lab Station and start to discovering to find all the potions.

Caution: Moving a Sim who has discovered a potion to a different town (before a certain patch) will reset the potion discovery data. If a Sim has completed the challenge and it is reset, they will not be able to complete the challenge again.