Jimmy Mårdell Problem Index
Shogi Tournament
The Rock
Queen vs Rook
The Wall Pushers
Optimal Mastermind Strategy
River Crossing
Game of Euler
Treblecross
Paths through the Hourglass
Black & White
Paper Folding
Buying Coke
Quadrills
Pyramid
Square Puzzle
Grid Points
Subway
Euler Circuit
Maximum sum on a torus
The Pawn Chess
Factory Robot
Warehouse
Creating Sudoku Puzzles
Pattern Transformations
Mini Cube
Square Counting