until I tried to feed my spreadsheet with another puzzle and failed again. When I finally managed to get the tool working, it was a relief. Not only was I slower but also the first version of the solver did not find all the numbers. The whole thing started on a Saturday night when I naively bet my partner that I would solve a puzzle with an easy spreadsheet calculation faster than him doing it manually. One feature of the solver I personally find very special: it was created by me. The solver is purely a combination of spreadsheets and formulas no macros or VBA code is used. The implementation does not employ any brute force calculations and is based on various logical techniques that exclude impossible options (with funny names like "swordfish", "skyscraper" or "x-wing") so you can basically trace back how to solve the puzzle as a human. It can solve the puzzles from a 2 Euro booklet, and "Expert"-level puzzles from specialized online resources and even some of the extremely difficult human-constructed Sudoku like this one. My solver is also not unique you can find many other versions on the internet, including those implemented with Excel.īut still, the solver does its job. It contains extremely long formulas that would be difficult to understand and maintain later. It requires a few manual inputs to push calculation to the next iteration. Sudoku is a popular puzzle that you solve by arranging numbers from 1 to 9 into a 9x9 grid so that every row, column, and 3x3 block contains all the numbers. ![]() Today I have finished an Excel-based Sudoku Solver.
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![]() The problem is that once you do, you're met with a tedious, repetitive gameplay that relies on chance more than anything else to make the game interesting. You look at the cover art and it instantly makes you want to pick up the game and play. Create alliances with other users and fight against stronger opponents.The first impression of the Dragon City game is one of charm.Unlock advanced features as you combine and evolve dragons.Summon dragons and discover their abilities.These are the main features to be found in this dragon game that has become a hit on platforms like Android: This will help you to fight against other stronger players and also to swap dragons and visit their cities. The social aspect of the game is important and allows you to be in contact with other players and create alliances with them. combine them and collect them: there are over 1000 different dragons. This will allow you to breed more dragons more quickly and sort them into different categories: fire, nature, pure, legend. You will be able to gradually build farms, habitats, and buildings for your dragons and upgrade them. ![]() Grow a city inhabited by dragons and collect them Breed them, combine them, and get them to fight against other dragons in exciting online battles. To achieve this, all you have to do is download Dragon City, the game in which you are going to build a city whose resources will all go towards breeding and combining dragons. The opportunity to build a city of and for dragons is in your hands. |
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