# Blog articles/Exercises

From HaskellWiki

## Programming exercises in Haskell

- Diff in Haskell
- Introductory Haskell: Solving the Sorting-It-Out Kata
- The "perfect shuffles" puzzle (solved in Haskell)
- A Simple RPN Calculator in Haskell
- Software Cipher
- Dot matrix printer
- Overlap function in Haskell for rectangles
- Tying Knots Generically
- A quick and dirty theorem prover in Haskell
- Brainf*k interpreter in Haskell
- FourFours in Haskell
- Using Bayesian filtering instead of 'if' in Haskell
- Counting fibonaccis
- Decision making
- Solving an arithmetic puzzle with Haskell
- The Rationals
- Break a string into pieces

## Particular exercises

### Prime sieves

### Supermarket Pricing

### Ball Clock Puzzle

### N-Queens

### The Google Code Jam "countPaths" problem

### Secret Santas in Haskell

### Run length encoding

### The bowling puzzle

- The Bowling Game Kata in Haskell
- Bowling in Haskell

### Norvig's spell checker

### Chris' Puzzle

### Word numbers

- Solving the word numbers problem: