Nudoku - A Sudoku with Pictures
Nudoku is a Sudoku type game, but in addition to the usual digits, it can also be played with pictures, emojis or colors - or even with chinese characters to memorize the 1000 characters of the classic Qianziwen primer.
The game is suitable for players aged 9 years or older, the Nudoku+ version is available for 18+ so we have a bit more freedom with future design extensions.
Note: There is a linux terminal / ncurses open source program with the same name, which can be played in a terminal window. We are not related, this game is named the same only because our company name starts with "Nu", so it rhymes. If you have a linux box and some installation skills, or came here in search of the linux program, take a look at jubalh.github.io/nudoku/