Developer's page

Sudoku9981.com

The following games by this developer are listed on GameLinkage.com:

Sudoku 9981 5.01
Create, print, play and solve unlimited Sudoku puzzles.

Word Sudoku to Learn English 1.0
Print, play and solve word sudoku to learn English

1000 Hard Sudoku 1.0
1000 hard printable sudoku puzzles