The Killer Sudoku solver will solve any puzzle that you see in a newspaper, magazine or book. The Killer Sudoku generator can generate all difficulty levels of puzzle, then allows you to view the solution or print out to paper. If you would like to take advantage of this new feature, simply sign up or log in to your full account now. Wednesday, 18th March 2009 Today we launch the world's first fully interactive Killer Sudoku generator and Killer Sudoku solver! To view, create a free account on their website, then click here or navigate to News » Brain Power section. Sunday, 30th May 2010 Our interactive Sudoku game is now live on the new Sunday Times website. We also offer a daily email facility - just select the days of the week you want to receive puzzles and we'll send them to your inbox. Sudoku, 4×3 Sudoku, Godoku, Super Sudoku, Samurai Sudoku and Killer Sudokuĭownload your copy now, simply sign up as a full member now! Monday, 2nd August 2010 Today we launch a our new Daily Sudoku service with one puzzle to play online, print or email every day. Sudoku puzzle e-book that you can print out to play.Īs with the second book, we have plenty of new Sudoku puzzles including: Sudoku, 3×2 Sudoku puzzles and variants for you to try! This book includes the usual suspects and more: Sudoku, 3×2ĭownload your copy now, simply sign up as a full member now! Tuesday, 7th June 2011 We have just added our third 100 Retrieve your copy now, simply sign up as a full member now! Friday, 18th April 2014 Our next members’ Sudoku book is available to full members. This book includes all the puzzle types you can generate, plus: 3×2 and 4×3 Sudoku. Sudoku puzzles and variants bringing you 600 puzzles across the series. This will really help your game! Tuesday, 6th June 2017 We’ve just added a new e-book in our series with 100 It lists all possible combinations of numbers that can be placed in a Killer Sudoku cage, given the cage size and total. This has been a request from a few of our regular Killer Sudoku players and we're happy to add this useful little guide. Sudoku, 4×3 Sudoku, Godoku, Super Sudoku, Samurai Sudoku and Killer Sudoku.ĭownload your copy now, simply sign up as a full member now! Thursday, 14th June 2018 We have recently put together a Killer Sudoku cage combination reference to help you when solving hard Killer Sudoku puzzles. New Sudoku puzzles and variants: Sudoku, 3×2 As with all the previous books, it contains 100 Without thoroughly checking, off the top of my head, this should work (with a bit of debugging) while only looping twice.News Friday, 25th June 2021 We’ve just released our new members’ Sudoku book for our full members. Return columns, units, line.length # was a number not eliminated?ĭef check_puzzle(columns, sudoku, puzzle, array, units): Unit = ceil(n / unit_l) + ceil(line_num / unit_l) # this line is wrong - rushed If you know the size of your board, you could also choose to do bit-masking, but that's probably a little overly tedious considering that efficiency isn't that big a deal to you.ĭef strike_numbers(line, line_num, columns, units, unit_l): Arrays arranged in this manner are just a particularly lightweight and performant form of a Set that works well for a small, consecutive, fixed set of numbers. Someone also pointed out that you can use any form of Set to do this. (You'll also want to check that each value is a legitimate number: if they give you a blank or a too-high number, you know that the board is not complete.) When you get to the end of the board, you'll know that all the values are correct, and there is no more checking required. As you place numbers in the board, it becomes a O(1) operation to determine whether any values are being duplicated in a given row, column, or square. Simply take the numbers in the order that they appear on the board, and begin building this data structure. Regardless of how your original board is being represented, this can be a simple and very fast way to check it for completeness and correctness. In other words, if you add a 5 to the second row, first column, you would set rows to true, along with columns and squares, to indicate that the row, column, and square now have a 5 value. The array's index represents the value that got placed into that row, column, or square. Create an array of booleans for every row, column, and square.
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