Futoshiki

Futoshiki is played on a grid, usually a 5x5 grid, although larger grids can also be used. The grid is divided into rows and columns, similar to a Sudoku puzzle. The objective of the game is to fill each cell of the grid with a number from 1 to 5, making sure that no number is repeated in any row or column.

However, the uniqueness of Futoshiki lies in the additional challenge it presents through the use of inequality signs. Some cells in the grid are marked with greater than (>) or less than (<) signs, which indicate the relative positioning of the numbers in those cells. For example, if there is a > sign between two cells, it means that the number in the left cell must be greater than the number in the right cell.

These inequality signs create a logical constraint that must be respected when filling in the numbers in the grid. You need to carefully consider the order of numbers in each row and column, ensuring that they follow the given inequality signs. This adds an extra layer of complexity to the game and requires careful analysis and deduction.

To solve a Futoshiki puzzle, you need to use a combination of logic and reasoning. Start by looking for cells with inequality signs and use them as clues to determine the relative order of the numbers. For example, if you see a > sign between two cells, you know that the number in the left cell must be greater than the number in the right cell. This can help you eliminate certain numbers and narrow down the possibilities.

Next, fill in the numbers that have only one possible value based on the inequality signs and the numbers already filled in the grid. This will help you create a solid foundation for solving the rest of the puzzle. As you progress, you can use the process of elimination and logical deductions to fill in the remaining cells.

One important strategy in Futoshiki is called crosshatching. This involves looking for rows or columns where only one number is missing and trying to deduce its value based on the numbers already present. By carefully analyzing the grid and using the inequality signs, you can often make educated guesses that lead you closer to the solution.

Futoshiki puzzles come in various levels of difficulty, ranging from easy to very challenging. They are a great way to keep your mind sharp and improve your logical thinking skills. The game can be played on paper or online, with many websites and mobile apps offering Futoshiki puzzles to solve.

In conclusion, Futoshiki is a fascinating Japanese numeric puzzle game that combines elements of Sudoku with logical inequalities. It challenges players to think critically, analyze the given clues, and use deductive reasoning to solve the puzzle. If you enjoy Sudoku and are looking for a new and exciting challenge, give Futoshiki a try. You won't be disappointed!

Instructions

The objective is to place numbers 1-5 in the cells. Each number should only appear once in each row and column. Additionally, you must follow the inequality signs between the cells. To activate or deactivate the notes mode, simply tap on the selected cell.
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