Very Challenging Puzzles
Here is the section of our Puzzle Book Ninja website reserved especially for puzzle solvers who love more challenging puzzles. Themes are varied, puzzle types are varied. Puzzles support brain health, activate the puzzle ninja within, and stimulate creativity. Check back often for new challenging puzzles.
Subcategories:
- Calcudoku Puzzles
- Challenging Word Searches
- Crossword Puzzle Bundle-A
- Crossword Puzzle Bundle-B
- Crossword Puzzle Bundle-C
- Crossword Puzzle Bundle-D
- Cryptolist Puzzles-Chemistry-Periodic Table
- Division Sudoku Puzzles
- Samurai Sudoku Puzzles - Beginner (Easy)
- Sudoku Printable Bundle D-Challenging
- Synonyms for 'Nonsense' Puzzles
