Jakhob and Wooferzfg have been setting puzzles together as well as individually. Their first feature on CTC is Siren Octal Dumpy which is a sudoku based on wordle but with numbers rather than letters. Their showcase video provides an insight into how they collaborate and set puzzles which can be viewed by clicking the play button in the centre of the video above.
Selecting a sudoku title will allow you to play it, selecting Simon or Mark image next to the title will allow you to watch it.
