This algorithm proves to be a valuable step in the field of explainable AI. Helping HAND searches for optimal strategies by Weighted Graph Search and can solve Sudokus while being able to explain each step along the way. The first three in this list are basic techniques that are essential for solving any Sudoku puzzles. Here is a list of tips and techniques that may help you to solve the puzzles. However the difficult ones need more logic involved. Take breaks: Solving an evil level sudoku puzzle can be a time-consuming process. Some examples include the 'X-Wing' technique, the 'Swordfish' technique, and the 'Hidden Pair' technique. Based on this Helping HAND, a Heuristic Alethic Natural Deduction based Sudoku solver, is proposed. Relatively easy Sudoku puzzles can be solved by a sequence of eliminations - eliminations of all impossibilities. Make use of advanced solving techniques: There are a number of advanced solving techniques that can be useful when working on evil level sudoku puzzles. Sudokus, thirteen of the most popular Sudoku solving strategies are gathered and formalized as Alethic Natural Deduction rules and their dependency and complexity is analysed. To approximate how human puzzlers complete It doesn’t address all the solving techniques apparently in the puzzles today, but it gets you well down the road. The Sudoku puzzle is formalized as a Modal Logic Problem. Peter’s book, Solving Sudoku (Mensa Guide to Solving Sudoku is same book only published earlier), is written in a way to take you from the most basic puzzle to the most complex. And if this is the case, what would such a solver look like? Because of this the aim of the thesis is twofold, consisting ofĪ logical analysis and an algorithmic implementation. Therefore the aim of this thesis is to answer whether it is possible to build a transparent logical algorithm which solves sudoku’s based on human strategies, by analysing the logic behind these strategies. Something which would be useful to aid human players in their own solving process. Consequently, there is currently not a solver which can logically explain its steps. Many sudoku solvers exist, often based on efficiency and therefore not taking human thinking steps and strategies into account. From the Sunday newspaper to World Championships, many people like to take a crack at the worldfamous puzzle. Sudokus are widely popular logical combinatorial puzzles.
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