Avris sudoku
This little app is a tribute to Simon Anthony, former UK team member in World Sudoku and World Puzzle Championships and co-host of a YouTube channel Cracking The Cryptic.
His catchphrases and reactions are getting iconic among the viewers, so I thought: why not create a reaction board out of them?
SumUp is a simple tool that shows all possible combinations of numbers that add up to a given sum. It's useful for certain types of puzzles, like for example this killer sudoku.