About the Pack:
This is part of a special series of posts. Over the last few months, I've been participating in Raumplaner's quattroquadri (essentially like 4 regions of a typical sudoku) setting challenges. I've compiled a pack of 36 of these puzzles, and am excited to share them! This page contains the puzzles self-rated at 3.5 stars of difficulty.
Please enjoy!
Links:
OVERALL PACK: PDF
Solution code: The digit in R5C1 for each of these puzzles, in order of the links above (7 digits).