Findings:
- RSA Secret Key Challenge
- challenge
- Pepsi Challenge
- Challenge of the Future
- Real World Road Rules Challenge
- Challenge a stupid patent
- The Saltine Challenge
- 13 challenges for the 13th generation
- Nodeshell Challenge
- University Challenge
- Agnosticism is the greatest intellectual challenge
- Christian challenge
- The Cheap Beer Challenge
- Scrapheap Challenge
- Minerva challenges Arachne
- BT Global Challenge
- Front Page Challenge
- Simon Singh's Code Book Cipher Challenge Cracked
- The challenge we face
- Reading Between the Lines: Lessons from the SDMI Challenge
- 24 challenge
- Daz Doorstep Challenge
- voluntary challenges in Nethack and Slash'Em
- The Great E2 Fin de Siecle Fiction Challenge
- European Soccer Challenge
- The 2-sentence Fin de Siecle Fiction Challenge Entry
- Learning Machine Challenge
- The 1-sentence Fin de Siecle Fiction Challenge Entry
- Fiction challenge results
- Challenge of Nexar
- Triangle Challenge
- Triangle Challenge Solution
- The Long Island Challenge
- Fed Challenge
- ECCp-109 Challenge
- Challenge Coin
- Chip's Challenge
- Ferrari F355 Challenge
- American Solar Challenge
- Freedom's Challenge
- James Randi Paranormal Challenge
- Three Peaks Challenge
- BOC challenge
- Challenge for Change
- Full Metal Challenge
- Cheesily Cheerful Chart Challenge
- The Lyme Park Downhill Challenge
- Most Extreme Elimination Challenge
- E2verse Valentines Challenge (collaboration)
- challenge response
- F1 Career Challenge
- Secret Me-Meta-Node Challenge
- The 99p Challenge
- DARPA grand challenge
- Challenge everything
- E2verse previous challenge (collaboration)
- Ivan's challenge
- Three Pint Challenge
- The Mentos Challenge
- wertperch's nodeshell challenge (document)
- Puzzle Quest: Challenge of the Warlords
- The Stephen King Challenge
- Harry Potter Interactive DVD Game: Hogwarts Challenge
- Millennium Challenge 2002
- THE IRON NODER CHALLENGE
- The Notebook Challenge
- Clomid challenge
- THE IRON NODER CHALLENGE 2: ELECTRIC BOOGALOO
- The Nuzlocke challenge
- THE IRON NODER CHALLENGE 3: THIS TIME IT'S MARTENSITIC
- Secret Santa Summer Nodeshell Challenge 2011
- "So?" is a challenge
- THE IRON NODER CHALLENGE 4: FERRASSIC PARK
- The challenge of writing a meaningful free-form poem using only two letter words
- THE IRON NODER CHALLENGE 5: THE FERROUS FRONTIER
- Sahara's Math Challenge # 1
- Noah's Ark challenge
- a partner who challenges you
- THE IRON NODER CHALLENGE 6: RUST NEVER SLEEPS
- The 2013 IRON NODER CHALLENGE (document)
- THE IRON NODER CHALLENGE 7: NODE HARDER WITH A VENGEANCE
- Up for a challenge?
- THE IRON NODER CHALLENGE 8: RUST IS FOR THE WEAK
- THE IRON NODER CHALLENGE: 9 FAST 9 FERROUS
- October Skeleton Challenge
- Ice bucket challenge
- THE IRON NODER CHALLENGE XII: WE'LL RUST WHEN WE'RE DEAD
- even if you fall from an impossible challenge,
- where you see mysteries, i see challenges
- "Age by age" reading challenge
- A Challenge is Issued
- Congratulations, you are about to experience a profound challenge
- A coder stumbles upon a dormant online game where real-world prizes are won; as they play, the challenges escalate to dangerous real-life tasks
- Friends
- friend
- just friends
- Best friend
- Some of our best friends are three minutes long
- the Justice Friends
- Religious Society of Friends
- imaginary friend
- Fisherman's Friend
- I just want to be friends
- You and Your Friend
- Keep your friends close and your enemies closer
- Assimilate your sister's good-looking friends into Everything
- How to Win Friends and Influence People
- The Let's Just Be Friends Shack
- The Let's Be Secret Friends Shack
- tell your friends
- We were never really friends
- Man's best friend
- Friends and lovers, but sometimes just friends
- Friended
- our new friend, the ten-foot pole
- How do you know when someone's your best friend?
- Friends since 6th grade
- Phil Lesh and Friends
- Friends who fuck
- Friends don't let friends drive drunk
- There is no friend anywhere
- friend of Dorothy
- My friend's car caught on fire
- Friends with benefits
- Friend division
- No hair = No friends
- death of a friend
- Friends of the Swastika
- The Computer Is Your Friend
- Spider-Man and his Amazing Friends
- Falling in love with your best friend
- female friend
- the friend zone
- gay friend
- Friends with privileges
- Garfield and Friends
- Old chestnut: friends
- Answer: friends
- real drinks with imaginary friends
- Some of my best friends are
- a tech support story that a friend told me that you might find amusing
- invisible friend
- For greeting your shiftless friends
- For hanging around with your shiftless friends
- For when something happens and you and your shiftless friends are nonplussed
- For when you and your shiftless friends are temporarily amused
- For when you and your shiftless friends are confused again
- For when you and your shiftless friends get something to eat
- For when you and your shiftless friends go shopping
- For when you and your shiftless friends are thinking about seeing a movie
- For when you and your shiftless friends finally go home
- For when you and your shiftless friends are wasting your time on chat
- Save Water - Shower with a Friend
- a friend of a friend
- Party Rescue Friend
- Stealing your best friend's girlfriend
- questions to ask of friends and lovers
- Like A Friend
- taking care of your little hamster friend
- Your Friends & Neighbors
If you Log in you could create a "Challenge of the Super Friends" node. If you don't already have an account, you can register here.