Numeriqo vs Mathdoku

Numeriqo is a Calcudoku puzzle: fill the grid so no row or column repeats a digit, and every outlined cage hits its target using the operator in its corner. Most number puzzles leave you to work out the technique yourself, or hand you the answer when you are stuck. Numeriqo does neither. TAUGHT, NOT ASSUMED Sixteen techniques, introduced one at a time, from single-cell cages up to X-Wing. Each lesson is a short explanation followed by a puzzle that needs the technique you just read about. Your progress on each one is tracked, and counts only the solves you managed unaided. HINTS THAT EXPLAIN Ask for a hint and Numeriqo tells you the region first. Ask again and it names the technique. Ask again and it draws the reasoning on the grid, cell by cell. Only the last step will place a digit for you, and taking it is a deliberate act rather than the default. NO GUESSING, EVER Every puzzle has exactly one solution, and every puzzle is checked before you see it to make sure the techniques in the app are enough to finish it. You will never be asked to guess and backtrack. WHAT YOU GET FREE Grids from 3x3 to 5x5 at all five difficulties, the rules tutorial, the first lessons, best times for every grid and difficulty, and a daily puzzle that is the same board for everyone. ONE PURCHASE UNLOCKS THE REST Grids up to 9x9, the full technique curriculum, practice drills for each technique, hints that teach, and your full progress. One purchase, no subscription, no adverts, and nothing is collected about you. Inspired by the Japanese arithmetic puzzles popularised by Tetsuya Miyamoto.

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.