• Messenger
• Metal Processing Plant
• Pachinko
• Sensor Network
• Skiing
• Surveillance
• Wire Crossing
• Amalgamated Artichokes
• Asteroids
• Catering
• Cutting Cheese
• Evolution in Parallel
• Keyboarding
• Pipe Stream
• Qanat
• Ship Traffic
• Tile Cutting
• Tours
• Weather Report
• Window Manager
• Family
• Intervals
• Solitaire
• Timetable
• Automatic Cheater Detection
• Counting Weekend Days
• Toll Management
• Owllen
• Sum of MSLCM
• Unique Party
• Honey King
• Design New Capital
• Numbered Cards
• The Hypnotic Spirals
• Balanced Diet
• Branch Assignment
• Ceiling Function
• Clock Breaking
• Forever Young
• Longest Rivers
• Oil
• Polygonal Puzzle
• Road Times
• Spin Doctor
• String Theory
• Swap Space
• What Really Happened on Mars?
• Airport Construction
• Get a Clue!
• Mission Improbable
• Money for Nothing
• Need for Speed
• Posterize
• Replicate Replicate Rfplicbte
• Scenery
• Secret Chamber at Mount Rushmore
• Son of Pipe Stream
• Tarot Sham Boast
• Visual Python++
• Longest Paths
• Garden of Eden
• Center of Masses
• Cutting Sticks
• Bicoloring
• Packing polygons
• Carmichael Numbers
• Count the Trees
• What’s Cryptanalysis?
• All Roads Lead Where?
• Where’s Waldorf?
• Where Can You Hide?
• How Big Is It?
• Super long sums
• Simple calculations
• Joseph’s Cousin
• Flip-Flop the Squarelotron
• The Never Ending Towers of Hanoi
• Reverse and Add
• Funny Encryption Method
• Minimal coverage
• Cube in the labirint
• Delta-wave
• Square root
• Curling up the cube
• The? 1? 2? ... ? n=kproblem
• Shoemaker’s problem
• Language Cardinality
• Demerit Points
• Edit Step Ladders
• Computer Dialogue
• Saskatchewan
• Tug of War
• Interpreter
• Freckles
• Primary Arithmetic
• Divisibility
• Bridge
• Jolly Jumpers
• Railroads
• Ouroboros Snake