Krazydad
krazydad.com
Long-running collection of logic puzzles and sudoku variants to play online or print
Details gathered automatically and checked on 14 November 2026. How sites are assessed

About Krazydad
Krazydad is a one-person puzzle site running since 2005, offering dozens of logic puzzle types that can be solved in the browser or printed. The range covers classic sudoku and many rule variants, alongside nonograms, slitherlink, kakuro, star battle, mazes, bridges and more. Puzzles can be filtered by type and difficulty, including easy and kid-friendly options, and there is a daily puzzles section. The creator says most puzzles are generated with software he wrote himself, and no sign-in is shown.
Games to try
- Konograms
- Killer Sudoku
- Slitherlink
- Star Battle
- Kakuro
How the advertising was measured
An automated visit on 14 November 2026, from the UK, at desktop and phone size, loading the home page and one game page. Levels are estimates: ads change from visit to visit.
- Ad networks loading
- None detected
- Ad slots counted
- 0
- First screen covered by ads
- 0%
- Full-screen (interstitial) ads
- Not seen
- Video ads
- Not seen
- Sound or video playing on arrival
- Not seen
Listed since 14 November 2026. Last checked 14 November 2026. Details are gathered automatically from the site itself; anything we couldn't confirm is shown as "Not yet assessed".
Pages checked
- krazydad.com/ (14 November 2026)
- krazydad.com/play/konograms/ (14 November 2026)
- krazydad.com/about/ (14 November 2026)