• Complex, difficult and complicated
• Fast and Easy Data Compressor
• Searching for Nessy
• My T-shirt suits me
• Numbers and operations
• The Scrooge Co Problem
• Automatic correction of misspellings
• Basic wall maze
• Construct the wall maze
• Dihedral groups
• Economic phone calls
• Flavius Josephus Reloaded
• Wine trading in Gergovia
• Homogeneous squares
• Formula 1
• Exact Sum
• Encoding
• Maximum Product
• Beverages
• Playing War
• Andy’s Second Dictionary
• B2-Sequence
• Number Theory
• A Gentlemen’s Agreement
• Aragorn
• Little Red Riding Hood
• An Easy Task
• A Graph Problem
• The good old times
• Permutation Representation
• Points
• Euler’s Totient Function
• Draw Grid
• Collage
• Add Again
• Find the Permutations
• Open Credit System
• What’s the Time?
• Place the Guards
• Strings
• Matrix Decompressing
• Zeroes Revisited
• Anagram Division
• Back to the 8-Queens
• Composite Prime
• Divisibility Testing
• End up with More Teams
• Fi-binary Number
• Going in Cycle!!
• How many Knight Placing?
• IIUC HexWorld
• Just Finish it up
• Continents
• Tabriz City
• Nails
• Poor My Problem! :-(
• Battle II
• Next Same-Factored
• The Trip, 2007
• Mall Mania
• Moonshine
• WFF ’N PROOF
• Cousins
• Semi-prime H-numbers
• Rectilinear polygon
• Life Forms
• Tautology
• Rinse
• Equidivisions
• Generalized Matrioshkas
• Babylonian Roulette
• Continuous Fractions A simple continuous fraction has the form:
• Polygon Encoder
• Uncle Jack
• Babel Towers
• Little Quilt
• Prisoners, Boxes and Pieces of Paper
• Chemical Attraction
• Very Funny, Mr. Feynman!
• Base -2
• TriTri
• Counting Trapezoid
• Troubles for Modern Days Problemsetters
• Arrange Some Marbles
• Relaxed Golf
• Triple-Free Binary Strings
• Faulty Computer
• An antiarithmetic permutation
• Billiard bounces
• Close Relatives
• Dice from pennies
• Eigensequence
• Fabled Rooks
• Gopher that walks and swims
• Hoax or what
• Ingenuous Cubrency
• Nuts and Bolts
• Counting Quadrilaterals
• Little Ali’s Little Brother!
• Sugar Cubes