The New Sudoku Players' Forum

[tibor]

Please try my sudoku app. Feedbacks are welcome. Thank you.

SudokuT is a simple and fast application with randomly generated puzzles. It contains three most popular Sudoku variants: Classic, Hyper and X-Sudoku. Thanks to the 9 difficulty levels, it is suitable for beginners as well as for the most demanding ones. The sudoku generation is very fast. On the Lumia 550, it takes only 50 milliseconds to create a sudoku level 8, although the level 8 also includes complex solving techniques like: Finned Swordfish, Sashimi Swordfish, XY-Wing, XYZ-Wing, W-Wing ...

URL: https://www.microsoft.com/store/apps/9nblggh35vbp

The free trial version is not limited in time, but contains only 5 difficulty levels (9 difficulty levels are available in full version).

For testing the app with all 9 difficulty levels please use the following promotional code.
Product name: SudokuT
Promotional code: MVKX9-69DY7-YVM2C-3PMT3-7GHKZ
Redeemable URL: http://go.microsoft.com/fwlink/?LinkId= ... PMT3-7GHKZ
Expire date: 1/3/2018 6:48 AM

[tibor]

New promotional code for full version:
Product name: SudokuT
URL: https://www.microsoft.com/store/productid/9NBLGGH35VBP
Promotional code: J7VK4-DGRF4-39F23-X7GCJ-JJY4Z
Redeemable URL: http://go.microsoft.com/fwlink/?LinkId= ... 7GCJ-JJY4Z
Expire date: 9/30/2018

Free version: https://www.microsoft.com/store/productid/9NBLGGH4VGTR

[tibor]

now you can create symmetric puzzles for all levels and variants

promotional code for full version:
Product name: SudokuT
URL: https://www.microsoft.com/store/productid/9NBLGGH35VBP
Promotional code: MD9D2-C77F2-PWCQR-R3CGD-WH6GZ
Redeemable URL: http://go.microsoft.com/fwlink/?LinkId= ... 3CGD-WH6GZ
Expire date: 7/19/2019

Free version: https://www.microsoft.com/store/productid/9NBLGGH4VGTR

[tibor]

Sudoku core is now in C++ (formerly C#) and packaged in a Windows Runtime component. Nobody notices the performance improvement anyway, because it was only 2x slower before. Creating Sudoku for Level 3 takes an average of only 0.2 milliseconds, for Level 8 it is 3.5 milliseconds (AMD Phenom II 2.8GHz).

New promotional code for full version:
Product name: SudokuT
URL: https://www.microsoft.com/store/productid/9NBLGGH35VBP
Promotional code: X26G3-TJJ7Y-2Q9M6-9QV22-R2TYZ
Redeemable URL: http://go.microsoft.com/fwlink/?LinkId= ... QV22-R2TYZ
Expire date: 6/15/2020

Free version: https://www.microsoft.com/store/productid/9NBLGGH4VGTR

[tibor]

With a few minor changes, it's faster now. I measured the average sudoku generation time for all variants and levels. The measurement was carried out on an old PC (AMD Phenom II 1055T 2.8 GHz) and the time is given in milliseconds.

Code: Select all

              1       2       3       4       5       6       7       8       A
Classic   0.207   0.098   0.108   0.173   0.380   1.126   1.365   3.139   1.010
Hyper     0.244   0.106   0.111   0.103   0.173   0.731   1.550   2.714   0.474
X         0.233   0.100   0.104   0.092   0.158   0.497   0.850   2.058   0.752
symmetric puzzles:
Classic   0.109   0.068   0.089   0.243   0.622   2.023   1.323   3.188   1.217
Hyper     0.128   0.074   0.080   0.080   0.137   1.038   1.557   2.818   0.380
X         0.125   0.070   0.076   0.068   0.144   0.604   0.852   2.099   0.411


I think it's fast enough on any Windows 10 device now.