Game guide:Completing the Logic skill challenge

There are 5 challenges for the Logic Skill. The Genius and Computer Whiz trait will help to complete these challenges faster.

Grand Master
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: You must call another next top opponent via telephone, challenge them, and win 15-20 matches on chess tournament. A secret chess skill is important because higher this secret skill level is, the higher chance you will have winning the chess game. To improve this secret skill you must practice chess often, either alone, or with another sim, or even with the use of a computer''

Celestial Explorer
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: You need 3 points of Logic Skill to be able to Search Galaxy with the telescope. Find a total of 20 space objects of any type like comets, satellites, planets, stars, and galaxies. ''

Teacher Extraordinaire
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: You need 5 points of Logic Skill to be able to tutor teens and children. Tutor any teen or child until you have tutored for 20 hours.''

Skill Professor
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: You need 10 points of Logic Skill and knowledge on any skill to be able to tutor another Sim on that skill. Tutor any Sim for any skill until you collect 30 hours for tutoring.''

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

''How to Unlock: You need 10 points of Logic Skill to be able to create all the 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, the Sim will not be able to complete the challenge.''