Professor's radscorpion

The Professor's radscorpion is an intelligent radscorpion genetically engineered by the insane Professor from Broken Hills.

Background
The scorpion is an avid chess player who wears wire-rimmed glasses. It communicates by clicking its pincers together.

Quests

 * Defeat the professor's radscorpion in three challenges: The radscorpion can be challenged to receive 1500 XP total, by talking to the professor and taking three different tests that each give 500 XP, for beating the radscorpion. The Intelligence test, the chess game, is won only by using the Flying Liver Attack, regardless of stats. The other two tests, which test Perception and Agility, are mere rolls against that attribute. You don't actually win, because the radscorpion always succeeds, but instead you get the experience when you tie.
 * Seymour, the talking spore plant, can help the Chosen One beat the radscorpion at chess by telling them to use the Flying Liver Attack. After defeating the radscorpion with the Flying Liver Attack, it will turn hostile and attack the Chosen, forcing either to run or fight it. Re-entering the building after fleeing makes it no longer hostile. Killing the radscorpion will greatly sadden the professor. However, he will not attack in revenge of his fallen scorpion.

Appearances
The Professor's radscorpion appears only in Fallout 2.

Behind the scenes
The Flying Liver Attack is a reference to a real chess opening called fried liver attack.