Add a new rule, “Tests”:

Each Rat has a Success Rate, tracked in the GNDT, which defaults to 5, and must be a number between 0 and 10, inclusive.

At any time, the Head Scientist may set a Test, by making a Story Post with “Test: ” at the start of its title. This post should include:

• A Task
• A Reward
• A Punishment
• An Acceptance Deadline
• A Completion Deadline

Any Rat may accept a Test by commenting on its post with an ARROW before the Acceptance Deadline. They must then complete the Task before the Completion Deadline.

If a Rat which has accepted a Test completes the Task before the Completion Deadline, it will receive the Reward, and must add 1 to their Success Rate. If a Rat which has accepted a Test fails to complete the Task before the Completion Deadline, it will receive the Punishment, and must subtract 1 from their Success Rate.

Add to the third paragraph of the rule “The Maze”:

When a Rat sets their Code for the first time, they must add it to Cell D4.