Dedoku: Detective Sudoku

Solve 300+ deduction mysteries across four difficulty levels. Follow the clues, use the Detective Assistant, and find the murderer!

Every clue has its place.

A murder has taken place, and the truth is hidden in the layout. Dedoku combines detective mysteries with Sudoku-inspired logic. Study the rooms, examine the objects, read each suspect’s clues, and determine where everyone was when the crime happened.

Only one person can occupy each row and column. Chairs, sofas, carpets, room corners, and nearby objects all matter. Use notes and crosses to eliminate impossible positions, place the suspects one by one, and reveal the killer.

No guessing is required—each case is designed with one logical solution.

FEATURES

• Detective cases built around deduction • 6×6, 9×9, and 12×12 boards • Easy cases for learning the rules • Medium cases with interconnected clues • Distinct rooms, including irregular and L-shaped layouts • Notes, crosses, undo, erase, and helpful hints • Progress tracking, streaks, and best times • Full portrait and landscape support • Carefully designed light and dark modes

Study the scene. Follow the clues. Place every suspect and solve the case.