There is a new Kindle game today: Strimko ($2.99), by Braintonik Games. This is Sudoku for those who are bored by the sameness of 81 tiny boxes. No longer do you solve the puzzle in a straight line, as you have to look to see if there are diagonals or loops attached to each position, nor does every puzzle use nine numbers (it looks like mediums goes up to five and master level only to seven).
Book Description
Jump into Strimko and enjoy classic Sudoku gameplay with a twist!
The object of the game is to place a set of numbers in rows or columns without repeating them in any row or column. Strimko adds a concept of "streams" that crisscross throughout the puzzle. With streams, you must consider not only the rows and columns, but also the streams, and make sure that each contains different numbers.
You can choose from four different difficulty levels. Each difficulty level increases the size of the grid you play on: "Easy" has a 4x4 grid, while the "Master" level challenges you with a 7x7 grid. Each of the four difficulty levels has 30 different puzzles, allowing for a total of 120 different puzzles to play. A hint function can also let you keep playing if you get stuck.
Challenge yourself and tease your brain as you master the logic required to solve Strimko puzzles!