Sudoku weekly contains a Sudoku for each day of the week. Sudoku weekly is only available as a downloadable and printable pdf file. Downloads are for free. The week presently available is Week 4, 2018.
July 2017 was the first month in which all Sudoku’s are Magic: Each Sudoku contains one or more gray blocks. In the solution, these gray blocks should also be magic: Each row and each column should add to 15 and all nine digits should occur. Each week, the Sudoku on Monday has one magic block, the Sudoku on Tuesday has two magic blocks and so on. On Sunday all blocks are magic.
Sudoku monthly consists of the five Sudoku weekly’s overlapping the current month. Sudoku monthly of January, 2018 is now available at Bruna. Previous issues are still available, too. Sudoku Monthly costs € 1.75.
Sudoku quarterly consists of the 13 Sudoku weekly’s of the present quarter and costs € 4.95. The first quarter of 2018 will be available soon.
Subscription. Subscriptions to Sudoku Monthly are no longer possible, but you can subscribe to Sudoku quarterly 2018 (Four quarters for € 16.00). Use the order form below.
The Sudoku’s are generated using a computer program written in the programming language of the statistical package R. The results are written to LaTeX files which can readily be printed in the proper layout. The system was developed by Herman Adèr.
At first, the magic Sudokus in Sudoku weekly only contained at most three magic blocks, but, starting in Week 26, 2017, all Sudoku’s are Magic.
For more information: see the website: www.jvank.nl/Sudokus