100 different Akari puzzles in different sizes from 8x8 to 12x12. The puzzles may be freely distributed or used for publication. Akari is another Japanese logic puzzle. The aim of Akari is to light up all empty cells by placing light bulbs at empty locations following certain rules. The Puzzles are in Adobe PDF file format and have not to be installed. You can easily print and then work them out with pencil and paper.

100 different Samurai puzzles in different degrees of difficulty. The puzzles may be freely distributed or used for publication. Samurai are extra big Sudoku puzzles, therefor the rules for solving a Samurai are the same: Each row, column and region must contain the numerals from 1 through 9 exactly once. The Puzzles are in Adobe PDF file format and have not to be installed. You can easily print and then work them out with pencil and paper.

100 different Sudoku puzzles in different degrees of difficulty and sizes from 4x4 to 16x16. The puzzles may be freely distributed or used for publication. The rules for solving a Sudoku are simple: Each row, column and region must contain the numerals from 1 through 9 exactly once. The Puzzles are in Adobe PDF file format and have not to be installed. You can easily print and then work them out with pencil and paper.

100 different Hitori puzzles in different sizes from 5x5 to 10x10. The puzzles may be freely distributed or used for publication. Hitori is another Japanese logic puzzle. It is played on a grid of squares, each square contains a number. Some numbers in a row or a column are duplicated. The goal is to locate these duplicates and mark them so that there are no duplicate numbers left. The Puzzles are in Adobe PDF file format and have not to be...

100 different Futoshiki puzzles in different degrees of difficulty and sizes from 4x4 to 9x9. The puzzles may be freely distributed or used for publication. Futoshiki is another Japanese logic puzzle which is normally played on a 5x5 grid. Translated, it means"not equal". The objective is to place the numbers 1 to 5 in each row and each column. Some numbers are given at the start and in addition, there are constraints specified...

100 different Kakuro puzzles in different sizes from 5x5 to 10x10. The puzzles may be freely distributed or used for publication. Kakuro - also called"Cross Sums"- is a logic puzzle similar to traditional crossword games, using digits instead of letters. A Kakuro puzzle consists of a grid with filled and empty cells. The goal is to put numbers in the empty cells that add up to the sum associated with it. The Puzzles are in Adobe PDF...