Philippine Sudoku - Book 5

This book contains 50 handmade sudokus, most of which are sudoku variants. Some have event or visual themes, while others have purely logical themes. Difficulty ratings are given for each puzzle.

- More new variants that were not in Books 1-4, such as Battenburg, Big Bands, and Mathrax.

- Online solving links for each puzzle are provided.

The second section contains answer keys, and hints for selected puzzles.

The third section contains an update of Philippine records at international contests up to WSC 2023 and ASC 2024.

File is formatted for A4 paper.