The Logic Puzzle Advent Calendar – Vol. 2 for Advanced Solvers: Challenging Christmas-Themed Logic Grid Puzzles for a Cozy and Fun-Filled Holiday (The Logic Puzzle Advent Collection) Books, Unicorn
Murder Mystery Logic Grid Puzzles: 75+ Puzzles, 20 Separate Cases to Solve (Murder Mystery Puzzle Case Files) Bonty, Books, McGee, Zips