What is Griductive and how the puzzles are made

Griductive is a daily deductive logic puzzle game where you play as a detective and determine who is innocent and who is a suspect using pure logic. Some people on the grid may or may not carry a clue — all of them remain logically consistent with it and everyone speaks the truth! No guessing. No luck. Just pure deduction. how the puzzles are made Every Griductive puzzle makes a bold promise: you will never need to guess. Every cell can be determined through logic alone, and every puzzle has exactly one correct answer. That's not a design goal — it's a mathematical guarantee, enforced by the same class of solver used in operations research and chip verification. This post explains how. Why Uniqueness Matters If a puzzle has two valid solutions, there must be at least one cell where both Suspect and Innocent satisfy all the clues. At that cell, no amount of reasoning can tell you which is correct — you'd have to guess. Guessing violates the core contract of a deduction puzzle. So the ge