Grid vs Mathdoku

One small pattern. Nine circles. Your next best score. Match the pattern on the large board: tap circles to turn them on or off. Get a point and a fresh pattern when they match. Easy to learn — hard to put down. THREE FREE GAMES A DAY Play three Classic or Daily Challenge games per UTC day on this device. Both modes share the same allowance. New games arrive at midnight UTC; the reset time is shown in your local time. Pausing and continuing never uses another game. BEAT THE CLOCK Classic starts with 18 seconds. Correct matches add time. Follow the reference ring when the pattern rotates, and beat your best. A FRESH DAILY CHALLENGE Everyone gets the same daily sequence of patterns. The challenge changes at midnight UTC. LEARN AND PRACTICE FREE Untimed Practice and the interactive guide are always free and never use a daily game. The guide lights up your next tap and helps when you make a mistake. GRID PRO — ONE PERMANENT PURCHASE Unlock more with an optional one-time purchase: • Unlimited Classic and Daily Challenge games. • A fixed 60-second sprint and a Rotation challenge with rotated patterns from the start. • Custom training: choose the timer, lit-circle count and rotations. • Statistics by game mode and your recent game history. • Ocean, Violet and Mint color themes. Pro is not a subscription. The App Store price is shown before purchase. Restore your purchase on the Pro screen on devices using the same Apple Account. Play in Danish or English. Gameplay works offline and needs no app account. Game Center is optional for the Classic leaderboard. Purchase and restore require a connection. No ads. Scores, daily games, history and themes stay on this device; game data does not sync between devices. Have an idea or found a bug? Send optional feedback from the guide, a paused game or your result. Messages stay on your device while offline and send when you reconnect.

Mathdoku (known as KenKen, Calcudoku) is an arithmetic puzzle that combines elements of sudoku and math. The rules of Mathdoku are complex. If you are new to this puzzle, you are suggested to read the wiki https://en.wikipedia.org/wiki/KenKen for details. We have different levels of Mathdoku for you to play. We have: - An unlimited number of Mathdoku. - Different level of Mathdoku - Easy Mathdoku puzzle - Normal Mathdoku puzzle - Hard Mathdoku puzzle (very difficult KenKen) - Extremely Hard Mathdoku (very difficult KenKen) - A daily new extremely hard challenging Mathdoku (Daily KenKen) This is the ultimate Mathdoku game for IOS. Play Mathdoku now! As in Sudoku, the goal of each puzzle is to fill a grid with digits so that no digit appears more than once in any row or any column (a Latin square). Grids size is 9×9. Additionally, KenKen grids are divided into heavily outlined groups of cells –– often called “cages” –– and the numbers in the cells of each cage must produce a certain “target” number when combined using a specified mathematical operation (either addition, subtraction, multiplication or division). For example, a linear three-cell cage specifying addition and a target number of 6 in a 4×4 puzzle must be satisfied with the digits 1, 2, and 3. Digits may be repeated within a cage, as long as they are not in the same row or column. No operation is relevant for a single-cell cage: placing the "target" in the cell is the only possibility (thus being a "free space"). The target number and operation appear in the upper left-hand corner of the cage. The objective is to fill the grid in with the digits 1 through 9 such that: Each row contains exactly one of each digit Each column contains exactly one of each digit Each bold-outlined group of cells is a cage containing digits which achieve the specified result using the specified mathematical operation: addition (+), subtraction (−), multiplication (×), and division (÷). Some of the techniques from Sudoku and Killer Sudoku can be used here, but much of the process involves the listing of all the possible options and eliminating the options one by one as other information requires.