Introductory Puzzles (A collection of puzzles introducing Code-Doku)

June Fun (7 diferent difficulties)

Joke: How does a pig get to the hospital? (11×11 jigsaw code-doku with 8 different difficulties)

Joke: What clothes does a house wear? (5×5 jigsaw code-doku with 7 different difficulties)

Joke: What lies on its back, one hundred feet in the air? (8 different difficulties)

Joke: What kind of ties can't you wear? (7 different difficulties)

Joke: What is the best thing to do if you find a gorilla in your bed? (7 different difficulties)

Joke: What has one horn and gives milk? (7 different difficulties)

Joke: What do you do when your chair breaks? (7 different difficulties)

Joke: What do you call a calf after it's nine months old? (7 different difficulties)

Joke: What do you call the best butter on the farm? (7 different difficulties)

Joke: What do bees do with their honey? (7 different difficulties)

Joke: What do you call a song sung in an automobile? (7 different difficulties)

Joke: What do you call a pig that does karate? (7 different difficulties)

Joke: What did the mother broom say to the baby broom? (7 different difficulties)

Joke: What did one magnet ask the other? (7 different difficulties)

Joke: What kind of bone will a dog never eat? (7 different difficulties)

Joke: What bird can lift the most? (7 different difficulties)

Joke: If a long dress is evening wear, what is a suit of armor? (7 different difficulties)

Joke: How do you prevent a summer cold? (7 different difficulties)

Joke: How do you make an egg laugh? (7 different difficulties)

Joke: How do you make a hot dog stand? (7 different difficulties)

Trivia: Asteroid 2004 MN4 (Difficulty: Tough)

Code-Doku en Español (Dificultad: Fácil)

Aesop's Moral (Difficulty: Moderate)

American Sports Headline – Week Ending 7 Oct 2005 (A moderate Super Code-Doku with overlapping grids)

A Question of Intent (A challenging Super Code-Doku with three overlapping grids)

Headline – Week Ending 7 Oct 2005 (A challenging Super Code-Doku)

Well-Known Adage (Difficulty: Moderate)

Headline – Week Ending 30 Sep 2005 (A moderate Super Code-Doku)

Better Than a Weapon? (Difficulty: Easy)

Headline – Week Ending 23 Sep 2005 (A moderate Super Code-Doku)

Weapon of Choice (Difficulty: Moderate)

Headline – Week Ending 16 Sep 2005 (A moderate Super Code-Doku)

Poker Hand (Difficulty: Fiendish)

Headline – Week Ending 09 Sep 2005 (A moderate Super Code-Doku)

Headline – Week Ending 02 Sep 2005 (An easy Super Code-Doku)

A Good Time For Sudoku (A Super Code-Doku)

Beatles Songs (A series of 12 puzzles with varying difficulty.)

Fuzzy Math? (Difficulty: Tough)

Enough Said (Difficulty: Tough)

Top Notch -- The only other source for Code-Doku puzzles.

Top 50 Sudoku Sites -- A collection of links to sudoku puzzles, solvers, games and more.