Guides
Everything that helps you solve murder mystery logic puzzles, in one place: methods and techniques, seasonal cases to print, and the real history of the 1920s underworld that inspires Capodoku. New guides are added every week.
Solving guides
Start here if you are new, or if a case has you stuck. These pages explain the rules, the method and each deduction technique with worked examples.
- How to Play Capodoku: Murder Sudoku RulesMurder sudoku rules explained in one minute: one suspect per row and column, clues narrow the grid, the person alone with the victim is the killer.
- How to Solve Murder Sudoku: The Complete MethodStep-by-step method to solve any murder sudoku without guessing: where to start, 8 deduction techniques, common traps and a fully worked example.
Seasonal cases
Complete cases written for the holidays, each with a printable PDF, progressive hints and a full answer.
1920s & Prohibition
The bars, the slang and the laws behind the game's world, told with sources and a puzzle or two along the way.
For teachers, parties and seniors
Printable packs and activities for a classroom, a party table or a memory workshop, all free to print.