Across
- 3. popular number puzzle
- 5. first documented puzzle
- 6. famous puzzle maker
- 9. the science of puzzles
- 10. first jigsaw used to teach this subject
Down
- 1. published daily for dedicated wordsmiths
- 2. puzzle solver's goal
- 4. spies code messages with these
- 7. put together rather than solved
- 8. puzzle maker who allegedly stole a puzzle