• Crystal Clear
• Flight Planning
• Lead or Gold
• Page Selection by Keyword Matching
• Petri Net Simulation
• Polygon Intersections
• Spatial Structures
• Towers of Powers
• Bee Breeding
• Bullet Hole
• A Dicey Problem
• The Fortified Forest
• Trade on Verweggistan
• Robot
• The Letter Carrier’s Rounds
• Flooded!
• Abbott’s Revenge
• According to Bartjens
• Cutting Chains
• Gifts Large and Small
• Internet Bandwidth
• Page Hopping
• Queue and A
• Stopper Stumper
• Coast Tracker
• Walking on the Safe Side
• Symbolic Numerical System
• Buddy Memory Allocator
• Deciphering Messages
• Almost Balanced Trees
• Shark
• Document Validator
• Financial Risk
• Water Falls
• Continued Fractions
• Square of Primes
• Largest Submatrix
• Light and Transparencies
• Worm World
• Not so Mobile
• Deadlock Detection
• Snake
• Crossword Puzzles
• Crypt Kicker
• Pousse
• Gas Station Numbers
• Steps
• A multiplication game
• Fmt
• Radar Tracking
• Crypt Kicker II
• Maze
• Deciding victory in Go
• DVD Subtitles
• Worse Code
• Lunch in Grid City
• The Vigenère Cipher
• Quantiser
• Berry Picking
• Chinese Checkers
• Entropy Text Analyzer
• Little Bishops
• Origami
• Process Scheduling
• Scheme Pretty-Printing
• Substitution Cypher
• Intersecting Line Segments
• Storing Images in a Sequence
• Numerical Maze
• Airline Comparison
• Intersecting Rectangles
• Counting Cells in a Blob
• Ordering
• Loan (II)
• 2D Representations
• Monopoly
• Balanced Expressions
• Offset Polygons
• Rotating Tetris Pieces
• Circuit Nets
• Cantor Fractions
• Points, Polygons and Containers
• The Mailbox Manufacturers Problem
• Overlapping Rectangles
• Factorial Factors
• Telephone Directory Alphabetization
• Named Extension Dialing
• Revolutionary Calendar
• Donkey
• Islands
• Maze (II)
• Syntrax
• Finding words
• Y3K Problem
• Juggling Trams
• Word Problem
• Board Game
• Anagrammatic Primes
• Hole Cutter
• Colour Circles