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
- laser
- laser pointer
- laser chicken
- Orbital mind control lasers
- laser printer
- Laser eye surgery
- laser disk
- free electron laser
- Who's been messin' with my laser?
- Laser Quest
- laser tag
- Continuous-wave laser projector
- laser show
- Laser Squad
- software laser
- chemical laser
- laser weapons
- Never use transparencies inside a laser printer
- laser rangefinder
- CallCenter Orbital Laser
- Titanium:Sapphire lasers
- Laser Radio Terminal
- laser designation
- Ring laser gyro
- laser sight
- X-Ray Lasers
- Nuclear laser rocket (speculative)
- tunable laser
- How to cool gases with lasers
- Laser Squad Scenarios
- Airborne Laser
- YAG Laser
- Laser Ranging Retroreflector experiment on the Moon
- laser diode
- Helium Neon Laser
- solid state laser
- Ion Laser
- Dye laser
- nitrogen laser
- CO2 Laser
- atom laser
- Laser-guided bomb
- laser bounce listening
- build a trippy laser device
- Laser Gates
- Laser Volley
- laser vaginal rejuvenation
- laser video
- Laser Blast
- Orbital Laser
- Laser M
- Laser Radial Rig
- Laser 4.7
- Entertainment Lasers
- Types of Entertainment Lasers
- Laser Projector
- Laser Projection Surfaces
- Laser Graphics
- Laser Safety Regulations in the US
- Chemical Oxygen-Iodine Laser
- Laser Interferometer Gravity-wave Observatory
- laser rot
- laser hair removal
- Laser Classes
- Semiconductor laser
- bomb-pumped laser
- laser cooling
- Laser print quality issues
- Low Level Laser Therapy
- laser fusion
- Bastard Digital Laser Disc
- laser eyes
- Laser cream
- Laser Teeth Whitening
- organic laser
- Laser Launch
- Laser Squad Nemesis
- transverse laser mode
- LADAR
- Laser proof
- Logitech MX1000 laser mouse
- Vertical-emission laser
- Laser Interferometer Space Antenna
- laser induced breakdown spectroscopy
- laser scanning cytometer
- Using a laser pointer to play with a cat
- laser trapping
- laser chess
- American Laser Games
- ELP Laser Turntable
If you Log in you could create a "Laser Challenge" node. If you don't already have an account, you can register here.