Haskle: Daily Haskell Type Puzzle Challenge

Decrypt obfuscated type signatures in this daily coding puzzle that tests your Haskell intuition. Reveal hidden Prelude functions through systematic type deduction.

Core Mechanics

• Daily Obfuscation: New function challenge every 24h
• Type Masking System:
  • 🤷 = Hidden type component
  • Reveal 2 elements per guess
  • Maintain type structure visibility
• Validation Rules:
  • Standard Prelude functions only
  • Complete signature required
  • 8 guess attempts maximum

Gameplay Walkthrough

1. Initial Analysis:
   • Study masked type structure
   • Count type parameters
   • Identify common patterns
2. Guessing Process:
   • Submit function hypotheses
   • Reveal matching type elements
   • Track eliminated possibilities
3. Signature Decoding:
   • Combine revealed components
   • Reconstruct complete type
   • Confirm with final answer

Daily Puzzle Elements

• Function Pool: 150+ Prelude functions
• Complexity Levels:
  • Basic: 1-2 type parameters
  • Advanced: Nested types
  • Expert: Higher-kinded types
• Progress Tracking:
  • Streak counter
  • Accuracy percentage
  • Average solve time

Mobile Optimization

• Vertical scrolling interface
• Type component zoom
• Dark/light theme
• Hackage documentation access

Common Questions

Q: How are functions selected?
Curated from Haskell 2010 Language Report.

Q: Time limit per puzzle?
None - solve at your own pace.

Q: Input validation?
Real-time typechecking with GHC.

Q: Error tolerance?
3 typo allowances per attempt.

Q: Solution sharing?
Spoiler-free hash sharing enabled.

Expand Your Coding Challenges

• Crosswordle: Hybrid game combining elements of crosswords and Wordle, offering a unique word puzzle experience.
• Wordle Archive Online: Collection of past Wordle puzzles for practice.
• Snake Game Online: Classic Snake game playable in your browser.
• Watermelon Game: Merge puzzle game where players combine identical fruits.
• Match3 Games: Collection of free Match 3 games.
• Wordle Online: Popular word guessing game with six attempts to guess a word.
• Play Snake: Classic arcade game where players control a growing snake.
• Waffle Game: Play the addictive Waffle game! Combine similar letters to form words. Simple to learn but challenging to master.
• Block Blast: Free-to-play block matching puzzle game with power-ups and chain reactions.
• Lutu: Play online games on Lutu.

Ready to prove your type inference skills? A new Haskell mystery awaits!