Strengthen your deductive reasoning skills by using a variety of logical clues to configure grids.
Driving to Conclusions
Managing Duplicates
Configuring Grids
Sharing Information
Cascading Lights
Patterns of Lights
Using Parity
Rows and Columns
Insufficient Information
Reasoning with Unknowns
Counting
Robots Ordering Dessert
Dice Rolls
Opening Safes
Opening Complex Safes
Androids
Extrapolate
Unknown Answers
Jokers
Rebels
Guessing Cards
Hat Puzzles
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Build simple computers out of logic gates.
Build a library of clues that you’ll use to perform increasingly sophisticated deductions. Through answering questions posed with insufficient information, you’ll also learn how to methodically decide what is and isn’t knowable from a set of premises.