One of the products offered by Silurian Software ➚ (who runs this web site) is an advanced Sudoku generation and solving application called Sudoku Dragon ➚.
As well as fully supporting the traditional kinds of Sudoku using numbers it also lets you play puzzles with letters; symbols; Chinese numbers and Chinese phrases.
On the right is a Sudoku Dragon puzzle using the Chinese characters for the numbers 1 to 9. You can play the puzzle while learning the characters for numbers at the same time.
It also offers a range of Chinese phrases where each 'number' 1 to 9 has been substituted by a Chinese character. When the puzzle is complete a nine character Chinese phrase is revealed. The toolbar gives the pinyin and English translation for each character in the phrase. So you learn some Chinese characters at the same time as playing a Sudoku puzzle.
To download the puzzle generator and solver to your Windows PC or laptop go to the Sudoku Dragon web site ➚. You can try it out for free for 22 days before you need to think about purchasing it.